Focused Site Investigation Report/Remediation Objectives ...

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Focused Site Investigation Report/Remediation Objectives Report/Remedial Action Plan Addendum0312615005 — Cook CountyRiver Forest / River Forest Cleaners(7601-7621 Lake Street)Site Remediation Program / Technical Reports

Prepared for: E&H Enterprises

Submitted to: Illinois Environmental Protection AgencyBureau of Land Division of Remediation ManagementSite Remediation Program1021 North Grand Avenue EastSpringfield, IL 62702

Project Number: 19-0338-102

Date Completed: February 5, 2021

The following personnel have prepared and/or reviewed this report.

2753 West 31st Street Chicago, IL 60608

773.722.9200 Phone - 773.722.9201 Fax www.pioneerEES.com

Nicole Andrade, P.E. Project Manager Report Reviewer

Megan Wells-Paske Senior Project Manager

Report Author

Licensed Professional Engineer Affirmation

I attest that all site investigations or remedial activities, including review of laboratory data, that are the subject of this plan or report were reviewed and/or performed under my direction and this document and all attachments were reviewed and/or prepared under my direction or reviewed by me, and, to the best of my knowledge and belief, the work described in the plan or report has been designed or completed in accordance with the Act, 35 Ill. Adm. Code 740, and generally accepted engineering practices, and the information presented, including any qualified laboratory data is accurate and complete.

In addition, I affirm that the documentation of the prior investigations or remedial activities is suitable for use and consideration in evaluating site conditions in connection with this assessment.

Nicole Andrade, P.E. Project Manager

Pioneer Project Number

19-0338-102

CONTENTS EXECUTIVE SUMMARY1.0 FOCUSED SITE INVESTIGATION REPORT ADDENDUM 1.......................................................

1.1 Introduction 1 ........................................................................................................................1.2 Supplemental Pre-Remediation Soil & Groundwater Sampling Activities 2 .............................

1.2.1 Supplemental Slug Testing 5 .......................................................................................................1.3 Applicable Tier 1 Exposure Routes 6 .....................................................................................

1.3.1 Non-TACO SROs 6 .....................................................................................................................1.3.2 Elevated Detection Limits 6 .........................................................................................................

1.4 Supplemental Pre-Remediation Analytical Testing Results 7 ...................................................1.5 Summary 9 ............................................................................................................................

2.0 IN-SITU REMEDIATION & CONFIRMATION SAMPLING ACTIVITIES 10...................................2.1 In-Situ Remediation 10 ..........................................................................................................2.2 Confirmation Soil Sampling Activities & Analytical Results 10 .................................................2.3 Post Remediation Soil Gas Sampling Activities & Analytical Results 13 ..................................2.4 Conclusions 14 ......................................................................................................................

3.0 REMEDIATION OBJECTIVES REPORT ADDENDUM 15............................................................3.1 Summary of Residual Impacts 15 ..........................................................................................3.2 Tier 2 Evaluation 20 ...............................................................................................................

3.2.1 Tier 2 GRO and SGRO - Residential Indoor Inhalation 21 ............................................................3.3 Exposure Route Evaluation 22 ...............................................................................................

3.3.1 Contaminant Source and Free Product Determination 22 ............................................................3.3.2 Outdoor Inhalation and Soil Ingestion Exposure Routes 24 .........................................................3.3.3 Residential Indoor Inhalation Exposure Route 26 .........................................................................3.3.4 Groundwater Ingestion Exposure Route 27 .................................................................................

3.4 Fate and Transport Modeling 28 ............................................................................................3.4.1 Tier 3 Evaluation for 2-Hexanone 30 ...........................................................................................

3.5 Summary 33 ..........................................................................................................................4.0 REMEDIAL ACTION PLAN ADDENDUM 34...............................................................................

4.1 Introduction 34 ......................................................................................................................4.2 Current & Post-Remediation Land Uses 34 ............................................................................4.3 Remedial Technology Selection 34 .........................................................................................

4.3.1 Active Remediation & Post-Remedial Monitoring 34 ....................................................................4.3.2 Engineering Controls 35 ..............................................................................................................4.3.3 Preventative Controls 35 .............................................................................................................4.3.4 Building Control Technology 35 ...................................................................................................4.3.5 Institutional Controls 40 ...............................................................................................................

4.4 Other Conditions 42 ..............................................................................................................4.5 Conclusions 42 ......................................................................................................................

5.0 CLOSING REMARKS 44............................................................................................................6.0 REFERENCES 45.......................................................................................................................

FSIR/ROR/RAP AddendumPioneer Project No. 19-0338-102February 5, 2021

i0312615005 -- Cook County

River Forest / River Forest Cleaners7601-7621 Lake Street

FIGURESFigure 1 Pre-Remediation Sampling Locations Figure 2 In-Situ Treatment Zone & Injection Point Locations Figure 3 In-Situ Treatment Confirmation Sampling Locations Figure 4 Results Summary - Residential Soil Ingestion Figure 5 Results Summary - Residential Outdoor Inhalation Figure 6 Results Summary - Construction Worker Soil Ingestion Figure 7 Results Summary - Construction Worker Inhalation Figure 8 Results Summary - Residential Indoor Inhalation Figure 9 Results Summary - Soil & Groundwater Components of Class I Groundwater Figure 10 Maximum Predicted Extent of Migration Figure 11 Proposed Engineered Barrier Boundaries Figure 12 Proposed Building Control Technology Boundaries

TABLESTable No. 1 Pre-Remediation Soil Sample Analytical Results: VOCs Table No. 2 Pre-Remediation Groundwater Sample Analytical Results: VOCs Table No. 3 Post-Remediation Soil Sample Analytical Results: VOCs Table No. 4 Post-Remediation Soil Gas Sample Analytical Results: VOCs

APPENDICESAppendix A Illinois EPA SRP Reporting Form (DRM-2) Appendix B Supplemental Boring/Well Logs, Sampling Protocols, Precipitation Data Appendix C Slug Test Report (MW-104-30) Appendix D Supplemental Laboratory Reports Appendix E Tier 2 Remediation Objective & Fate/Transport Modeling Spreadsheets Appendix F Local Ordinance and Draft Notification Letter


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EXECUTIVE SUMMARY

Pioneer Engineering & Environmental Services, LLC (Pioneer) was contracted to provide voluntary environmental site closure services in connection with the River Forest Cleaners facility formerly located at 7613 Lake Street in River Forest (Cook County), Illinois. The Remediation Site encompasses approximately 28,250 square feet (~0.65 acre), and is currently undeveloped land scheduled for redevelopment.

Prior investigation of the former on-site dry cleaning facility was performed by other consulting firms from 2001 to 2010, and confirmed the presence of certain volatile organic compounds (VOCs) at concentrations exceeding the Tier 1 soil and groundwater remediation objectives (SROs and GROs). Supplemental testing was performed at the Remediation Site in 2016 and 2019 in an effort to further characterize the site, evaluate current conditions, and attempt to delineate the extent of contamination where tetrachloroethylene (PCE) was previously identified at concentrations exceeding the soil saturation limit. The supplemental investigation activities identified several VOCs (primarily the chlorinated dry cleaning solvent PCE and its degradation compounds) at concentrations exceeding the applicable Tier 1 remediation objectives, including a soil saturation limit impact on the east-central portion of the site.

An Amended Focused Site Investigation Report/Remediation Objectives Report/Remedial Action Plan (Amended FSIR/ROR/RAP), dated January 15, 2020 was submitted to the Illinois Environmental Protection Agency’s (Illinois EPA’s) Site Remediation Program, and proposed a plan to remediate the soil saturation limit impact on the east-central portion of the site using in-situ chemical oxidation (ISCO). In a letter dated April 3, 2020, the Illinois EPA approved the proposed site-specific soil saturation limit of 1,075 mg/kg, and the plan to address the impact using ISCO; however, additional sampling was required. A supplemental sampling plan, dated April 17, 2020, was conditionally approved by the Illinois EPA on May 21, 2020.

As discussed herein, supplemental testing was completed in June and July 2020, and the ISCO treatment was performed in July and August 2020. Post-treatment soil sampling has demonstrated that the ISCO treatment was effective at reducing PCE concentrations to below the site-specific soil saturation limit. Residual VOCs will be managed in place through the calculation of Tier 2 soil and soil gas remediation objectives, and the exclusion of the affected exposure routes using engineering, preventive and institutional controls. The following table identifies all applicable exposure routes for the Remediation Site, and the planned approach for addressing the affected exposure routes.

Planned Approach for Addressing the Residual VOCs

Note:-- indicates no Tier 1 exceedances

The objective of this FSIR/ROR/RAP Addendum is to demonstrate that the site has been adequately characterized, and obtain the Illinois EPA’s approval of the proposed plan to manage residual VOCs in place.

Contaminants of Concern

Soil Ingestion (Residential)

Outdoor Inhalation

(Residential)

Soil Ingestion (Construction

Worker)

Outdoor Inhalation

(Construction Worker)

Soil Component of

Class I Groundwater

Groundwater Component of

Class I Groundwater

Indoor Inhalation

(Residential)

VOCs Engineering Control

Engineering Control -- Preventive

ControlsInstitutional

ControlInstitutional

ControlBuilding Control

Technology


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The work outlined herein is being voluntarily conducted to facilitate the eventual issuance of a focused No Further Remediation letter from the Illinois EPA. The contents of this submittal are intended to satisfy the requirements of Title 35 Illinois Administrative Code 740.435, 740.445, and 740.450.

This report has been prepared for the use of the Remediation Applicant and current property owner, and for evaluation by the Illinois EPA, and can not be relied upon by other persons or entities without the permission of Pioneer. The observations and conclusions contained herein are limited by the scope and intent of the work mutually agreed upon by the client and Pioneer and the work actually performed. There are no warranties, implied or expressed, concerning the environmental integrity of areas and/or mediums not analytically tested.


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1.0 FOCUSED SITE INVESTIGATION REPORT ADDENDUM

1.1 Introduction

Pioneer Engineering & Environmental Services, LLC (Pioneer) is submitting this report in connection with the former River Forest Cleaners facility at 7613 Lake Street in River Forest, and the Remediation Site currently identified as 7601-7621 Lake Street. This report serves as an addendum to the Amended Focused Site Investigation Report/Remediation Objectives Report/Remedial Action Plan (Amended FSIR/ROR/RAP), dated January 15, 2020.

As documented in reports previously submitted to the Site Remediation Program (SRP), an initial subsurface investigation was conducted at the Remediation Site in 2001 to determine if the site had been impacted by on-site dry cleaning operations, and additional assessment activities were in 2004, 2005, 2007, 2009 and 2010 in an effort to delineate the extent of contamination. The prior assessment activities identified the chlorinated dry cleaning solvent tetrachloroethylene (PCE) and several degradation compounds at concentrations exceeding the Tier 1 soil and groundwater remediation objectives (SROs and GROs). Of note, two concentrations of PCE identified at B3100 and B3800 (beneath portions of the former on-site subject building) also exceeded the site-specific soil saturation limit. The 7601-7615 Lake Street portion of the Site was enrolled into the SRP in 2004 to pursue a “focused” No Further Remediation (NFR) letter; however, no reports had been submitted to the Illinois Environmental Protection Agency (Illinois EPA) since 2010, and the SRP listing was inactivated.

Given the length of time that had elapsed since the prior investigation activities were completed, supplemental testing was conducted at the Remediation Site in 2016 and 2019 in an effort to further characterize the site, evaluate current conditions, and attempt to delineate the extent of contamination where PCE was previously identified above the site-specific soil saturation limit. The 2019 soil testing activities identified no site-specific soil saturation limit impacts where they were previously identified (B3100 and B3800); however, a site-specific soil saturation limit impact was identified on the east-central portion of the site in soil sample B6002 (10-12.5’).

Following review of the Amended FSIR/ROR/RAP, the SRP issued a letter, dated April 3, 2020, that approved the site-specific soil saturation limit of 1,075 mg/kg for PCE, and approved the plan for addressing the soil saturation limit impacts through in-situ chemical oxidation (ISCO); however, supplemental soil and groundwater testing was requested to fully characterize the site and confirm the extent of the proposed ISCO treatment area. A sampling plan was submitted to the SRP in a response letter, dated April 17, 2020. The SRP approved the sampling plan on May 21, 2020, with the condition that supplemental soil borings advanced around prior boring TT-100 be completed to a minimum depth of 20 feet below surface grade (BSG) instead of 15 feet as was proposed in the response letter.

The following sections of this FSIR Addendum provide summaries of the supplemental, pre-remediation soil and groundwater testing activities, which were performed in accordance with the conditionally approved sampling plan.


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Discussions of the ISCO treatment and post-remediation soil and soil gas sampling activities are provided in Section 2.0 of this report.

An ROR Addendum presenting Tier 2 objectives and an updated pathway exclusion evaluation is provided as Section 3.0 herein, and a RAP Addendum outlining the plan for addressing residual impacts is provided as Section 4.0.

1.2 Supplemental Pre-Remediation Soil & Groundwater Sampling Activities

Supplemental soil and groundwater sampling activities were completed at the Remediation Site on June 23, 25 and 26, and July 7, 2020, to address the Illinois EPA’s request for further site characterization. The supplemental testing activities were performed in accordance with the sampling plan outlined in the Responses to Illinois EPA Comments document, dated April 17, 2020, modified to satisfy the condition of the Illinois EPA’s letter, dated May 21, 2020.

The following table provides a summary of supplemental, pre-remediation soil and groundwater sampling activities and field observations.

Table 1-1 Supplemental Pre-Remediation Soil & Groundwater Sampling Summary

Boring ID Interval (feet)

PID Readings

(ppm)Field

Observations Analysis Purpose

MW-104-30’ GW — NO/NV VOCs Evaluate groundwater conditions near TT-104B-6016 0-2.5 0 NO/NV — Address SRP request for further testing

2.5-5 0 NO/NV — near TT-100 (to the south)5-7.5 7 NO/NV —7.5-10 10 NO/NV —10-12.5 122 NO/NV VOCs12.5-15 2 NO/NV VOCs15-17.5 0 NO/NV —17.5-20 0 NO/NV VOCs

B-6017 0-2.5 0 NO/NV — Address SRP request for further testing2.5-5 0 NO/NV — near TT-100 (to the west)5-7.5 4 NO/NV —7.5-10 3 NO/NV —10-12.5 102 NO/NV VOCs12.5-15 0 NO/NV VOCs15-17.5 0 NO/NV —17.5-20 0 NO/NV —

B-6018 0-2.5 0 NO/NV VOCs Address Illinois EPA BOL Permit Section2.5-5 0 NO/NV VOCs request for testing of shallow soils in the5-7.5 0 NO/NV VOCs area of a proposed elevator pit7.5-10 5 NO/NV —10-12.5 13 NO/NV VOCs Address SRP request for further testing12.5-15 0 NO/NV VOCs near TT-100 (to the north)15-17.5 0 NO/NV —17.5-20 0 NO/NV —


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B-6019 / 0-2.5 0 NO/NV — Address SRP request for further testingMW-6019 2.5-5 0 NO/NV — near TT-100 (to the east)

5-7.5 7 NO/NV —7.5-10 18 NO/NV —10-12.5 40 NO/NV VOCs12.5-15 0 NO/NV VOCs15-17.5 0 NO/NV —17.5-20 0 NO/NV —GW — NO/NV VOCs

B-6020 0-2.5 3 NO/NV — Delineation south of the proposed2.5-5 6 NO/NV — remediation area5-7.5 150 NO/NV —7.5-10 157 NO/NV VOCs10-12.5 1,572 NO/NV VOCs12.5-15 93 NO/NV VOCs15-17.5 0 NO/NV —17.5-20 0 NO/NV —

B-6021 0-2.5 0 NO/NV — Delineation south of the proposed2.5-5 0 NO/NV — remediation area5-7.5 2 NO/NV —7.5-10 112 NO/NV —10-12.5 1,220 NO/NV VOCs12.5-15 82 NO/NV —

B-6022 0-2.5 1 NO/NV — Delineation east of the proposed2.5-5 3 NO/NV — remediation area5-7.5 11 NO/NV —7.5-10 11 NO/NV —10-12.5 117 NO/NV VOCs12.5-15 4 NO/NV —

B-6023 0-2.5 0 NO/NV — Delineation east of the proposed2.5-5 1 NO/NV — remediation area5-7.5 27 NO/NV —7.5-10 30 NO/NV —10-12.5 35 NO/NV VOCs12.5-15 0 NO/NV —

B-6024 0-2.5 2 NO/NV VOCs Address Illinois EPA BOL Permit Section2.5-5 6 NO/NV VOCs request for testing of shallow soils in the5-7.5 34 NO/NV VOCs, TCLP VOCs area of a proposed elevator pit



B-6027 / 0-2.5 0 NO/NV VOCs Address SRP request for further testingMW-6027 2.5-5 0 NO/NV — on the northwestern portion of the site


PID Readings

(ppm)Field



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Notes: -- not applicable (no PID readings for groundwater samples), or the sample was not submitted for laboratory analysis NO/NV = no odor/no visual evidence of contamination PID = photoionization detector ppm = parts per million TCLP = toxicity characteristic leaching procedure test method VOCs = volatile organic compounds

Soil samples were collected using a track-mounted, hydraulic percussive GeoProbe® using dual-tube stainless steel barrel samplers lined with PVC sleeves. After the sample from each interval was retrieved, the undisturbed soil sample was immediately field screened within the sample liner using a Mini-Rae 2000 hand-held photoionization detector (PID). A sample was then immediately selected from the portion of the interval displaying the highest field screening results (where elevated screening results were observed) and preserved in accordance with Method 5035 using laboratory-provided 40-milliliter vials. Additional soil volume was packed into unpreserved, pre-labeled, glass jars. Packed sample containers were immediately placed on ice in a sample cooler that was retained in the possession of Pioneer personnel at all times, and upon completion of the field activities, the soil samples were delivered to a NELAC-certified, independent laboratory under standard chain-of-custody procedures.

B-6027 / 5-7.5 0 NO/NV — Address SRP request for further testingMW-6027, 7.5-10 0 NO/NV — on the northwestern portion of the sitecontinued 10-12.5 0 NO/NV — (7617-7621 Lake St.)

12.5-15 0 NO/NV —GW — NO/NV VOCs

B-6028 0-2.5 0 NO/NV VOCs Address SRP request for further testing 2.5-5 0 NO/NV — on the northwestern portion of the site5-7.5 0 NO/NV — (7617-7621 Lake St.)7.5-10 0 NO/NV —10-12.5 0 NO/NV —12.5-15 0 NO/NV VOCs

B-6029 0-2.5 0 NO/NV — Lateral delineation south of B60212.5-5 0 NO/NV —5-7.5 0 NO/NV —7.5-10 0 NO/NV —10-12.5 0 NO/NV VOCs12.5-15 0 NO/NV —

B-6030 0-2.5 0 NO/NV — Lateral delineation south of B60202.5-5 0 NO/NV —5-7.5 0 NO/NV —7.5-10 0 NO/NV —10-12.5 0 NO/NV VOCs12.5-15 0 NO/NV —

B-6031 0-2.5 0 NO/NV — Lateral delineation west of B60202.5-5 0 NO/NV —5-7.5 0 NO/NV —7.5-10 0 NO/NV —10-12.5 0 NO/NV VOCs12.5-15 0 NO/NV —


PID Readings

(ppm)Field



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Three supplemental groundwater monitoring wells were installed, including MW-104-30, MW-6019 and MW-6027. The borehole for MW-104-30 was drilled using a conventional rotary drilling rig, and the well was constructed of 2-inch internal diameter, schedule 40, flush-joint PVC screen and riser pipes (5 feet of machine-slotted well screen and 25 feet of riser pipe). Monitoring wells MW-6019 and MW-6027 were installed within direct-push boreholes, and constructed of 1-inch internal diameter, schedule 40, flush-joint PVC screen and riser pipes (10-foot screens and 5 or 10-foot riser pipes). The annular space surrounding each screen was backfilled with silica sand to a height not less than 1 foot above the top of the well screen, and bentonite clay was placed above the filter pack to provide a low permeability seal. The remaining annulus was sealed with bentonite and concrete to the ground surface.

Following development, purging and the completion of recharge, groundwater samples were collected from the three supplemental monitoring wells on July 7, 2020 using dedicated, disposable bailers. The samples were transferred from the bailers directly into containers provided by the contract laboratory (40-milliliter vials containing hydrochloric acid preservative), and immediately packed on ice in a sample cooler. The sample cooler was retained in the possession of Pioneer personnel at all times, and upon completion of the field activities, the samples were delivered to Pioneer’s office and transferred directly from the cooler into a refrigerator dedicated to storing soil and groundwater samples. The samples were contained within the refrigerator until they were relinquished to a NELAC-certified, independent laboratory under standard chain-of-custody procedures. Pioneer’s standard soil and groundwater sampling protocols are provided in Appendix B, along with logs for the supplemental, pre-remediation soil boring and monitoring wells. The sampling locations are presented on the attached Figure 1.

Note that MW-104-30 was placed approximately 9 feet southeast of TT-104 (placement was based on the location of proposed footing excavations), and the clayey gravel soils reportedly identified at 25 to 30 feet BSG in prior boring TT-104 were not identified during the installation of MW-104-30. An evaluation of soil conditions reportedly encountered in other deep, nearby borings, combined with Pioneer’s observations during installation of MW-104-30, suggests that the lenses of sand/gravel identified at the Remediation Site are discontinuous; note, specifically, the following: gravelly sand was reportedly identified at 20 to 27 feet in TT-101 (northeast of TT-104) followed by clay from 27 to 35 feet; gravelly sand was reportedly identified 25 to 27.5 feet in TT-102 (north of TT-104) followed by clay from 27.5 to 32.5 feet; clayey sand was reportedly identified at 22 to 24 feet in TT-103 (northeast of TT-104) followed by clay from 24 to 32.5 feet; and gravel with clay was reportedly identified at 15 to 16 feet in TT-108 (east of TT-104) followed by clay from 16 to 30 feet.

1.2.1 Supplemental Slug Testing

As part of the supplemental investigation, a slug test was performed in MW-104-30 on July 7, 2020. The basic methodology consisted of lowering a submersible, data-logging pressure transducer into the well and documenting changes in water table elevations following extraction of water using a submersible pump. The rates of recharge/equilibration were recorded using a laptop computer and the recorded data were plotted and evaluated utilizing widely-accepted methods for slug test data interpretation (Bouwer and Rice), and third-party, groundwater modeling software (AquiferTest). The results of slug testing in


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MW-104-30 yielded a hydraulic conductivity value of 5.32 x 10-5 cm/s (see Appendix C; note that the results presented on the slug test data sheets are listed units of m/s).

Although the slug testing results for the Remediation Site are less than 1 x 10-4 cm/sec (7.16 x 10-7 cm/s in MW1800, and 5.32 x 10-5 cm/s in MW-104-30), considering that discontinuous lenses of sand at least 5 feet in thickness were identified during a subsurface investigation activities, a Class I designation will be used for this project going forward.

1.3 Applicable Tier 1 Exposure Routes

• Soil Ingestion & Outdoor Inhalation Exposure Routes: The Remediation Site is currently undeveloped vacant land; however, the site is expected to be redeveloped with a mixed-use building with retail and parking areas on the ground level, and residential units above. Therefore, the applicable Tier 1 remediation objectives for the soil ingestion and outdoor inhalation exposure routes include the Tier 1 SROs and/or Tier 1 SGROs for residential property and construction worker populations.

• Soil and Groundwater Components of the Groundwater Ingestion Exposure Route: As discussed, a Class I designation will be used for this project. Therefore, the Tier 1 SROs and GROs for the soil and groundwater components of Class I groundwater shall apply to the Remediation Site.

• Indoor Inhalation Exposure Route: Given the proximity of the the proposed on-site building to the identified VOCs, the applicable Tier 1 objectives for the indoor inhalation exposure route are the residential GROs and SGROs where the mode of contaminant transport is both diffusion and advection (Appendix B, Table H of the TACO regulations). The proposed building will be constructed atop a full concrete slab-on-grade foundation with no open sumps, which satisfies the requirement allowing use of the Tier 1 GROs/SGROs for the indoor inhalation exposure route. (Note that proposed elevator pit sumps will consist of concrete lined pits, and therefore, are not applicable to the prohibition on sumps.)

1.3.1 Non-TACO SROs

Non-TACO SROs were formerly available from the Illinois EPA, but were rescinded in 2016 and now must be calculated following the Illinois EPA’s online “Procedures for Determining Soil Remediation Objectives for Chemicals Not Listed in TACO Regulations.” The only non-TACO chemicals detected in soil samples collected from the Remediation Site were 1,1,2,2-tetrachloroethane, 2-butanone (a.k.a., methyl ethyl ketone [MEK]) and 2-hexanone. As such, Pioneer calculated non-TACO SROs for these compounds; see the non-TACO SRO calculation spreadsheets following the analytical data tables in the “Tables” section of the appendices.

1.3.2 Elevated Detection Limits

Detection limits that exceed the applicable Tier 1 SROs or GROs were evaluated as potential impacts for VOCs that were detected in at least one soil or groundwater sample collected from the Remediation Site.


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1.4 Supplemental Pre-Remediation Analytical Testing Results

The following tables provide summaries of the VOCs identified above the Tier 1 SROs and GROs in the supplemental, pre-remediation soil and groundwater samples. Laboratory reports for the supplemental, pre-remediation soil and groundwater samples are provided in Appendix D.

Table Nos. 1 and 2 in the “Tables” section of the appendices provide complete listings of the pre-remediation testing results in comparison to the Tier 1 SROs and GROs, including soil and groundwater testing results from prior subsurface investigations.

Table 1-2 Summary of Supplemental Pre-Remediation Soil Testing Results Boring

IDInterval (feet)

Residential Soil

Ingestion

Residential Outdoor

Inhalation

Construction Worker Soil

IngestionConstruction

Worker InhalationSoil Component of Class I

Groundwater Csat

B-6016 10-12.5 PCE, (VC)(1122TCA), (12DCA), (B), (C), (MC), PCE, TCE, (VC)

—(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (BM), (C), PCE, (TX), (VC)

(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (A), (B), (BM), (C), (cDCE), (MC), PCE, (tDCE), TCE, (VC)

—

12.5-15 — — — — (1122TCA), (MC) —17.5-20 — — — — — —

B-6017 10-12.5 PCE, (VC) (12DCA), (C), PCE, (VC) — (12DCP), (2H), PCE

(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (B), (BM), (C), (cDCE), (MC), PCE, TCE, (VC)

—

12.5-15 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, (VC) —

B-6018 0-2.5 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, (VC) —

2.5-5 — — — — — —5-7.5 — — — — PCE —

10-12.5 PCE, VC B, (C), PCE, TCE, VC — (2H), PCE, TCE, VC

(1122TCA), 11DCE, (12DCA), (12DCP), (2H), B, (BM), cDCE, (MC), PCE, tDCE, TCE, VC

—

12.5-15 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), (PCE), (VC) —

B-6019 10-12.5 B, VC VC — VC (1122TCA), (12DCA), (12DCP), (2H), B, cDCE, (MC), (PCE), VC —

12.5-15 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), (PCE), (VC) —

B-6020 7.5-10 — — — — PCE —

10-12.5 PCE, (VC)(1122TCA), (12DCA), (B), (C), (MC), PCE, TCE, (VC)



PCE


B-6021 10-12.5 PCE, (VC)(1122TCA), (12DCA), (B), (C), (MC), PCE, TCE, (VC)

—(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (C), PCE, (TX), (VC)


PCE

B-6022 10-12.5 PCE, (VC)(1122TCA), (12DCA), (B), (C), (MC), PCE, (VC)


(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (A), (B), (BM), (C), (cDCE), (MC), PCE, (tDCE), (TCE), (VC)

—

B-6023 10-12.5 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, TCE, (VC) —

B-6024 0-2.5 — — — — PCE —2.5-5 — — — — PCE —

5-7.5 PCE (12DCA), (C), PCE, (VC) — (2H), PCE

(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (B), (BM), (cDCE), (MC), PCE, (TCE), (VC)

—


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Notes: — indicates no VOCs were identified above the Tier 1 SROs ( ) indicates an elevated detection limit that exceeds the Tier 1 SRO (only evaluated for confirmed VOCs) 1122TCA = 1,1,2,2-tetrachloroethane 11DCE = 1,1-dichloroethene 12DCA = 1,2-dichloroethane 12DCP = 1,2-dichloropropane 2B = 2-butanone (MEK) 2H = 2-hexanone A = acetone B = benzene BM = bromomethane C = chloroform cDCE = cis-1,2-dichloroethylene MC = methylene chloride PCE = tetrachloroethylen tDCE = trans-1,2-dichloroethylene TX = total xylenes TCE = trichloroethylene VC = vinyl chloride

Table 1-3 Summary of Supplemental Pre-Remediation Groundwater Testing Results

Notes: — indicates or no VOCs were identified above the Tier 1 GROs ( ) indicates an elevated detection limit that exceeds the Tier 1 SRO (only evaluated for confirmed VOCs) * SG-5 was collected at MW-6019 and demonstrates compliance with the indoor inhalation Tier 1 SGROs (see Section 2.3) 1122TCA = 1,1,2,2-tetrachloroethane 11DCE = 1,1-dichloroethene 12DCA = 1,2-dichloroethane 12DCP = 1,2-dichloropropane 2H = 2-hexanone B = benzene BM = bromomethane C = chloroform cDCE = cis-1,2-dichloroethylene MC = methylene chloride PCE = tetrachloroethylene TCE = trichloroethylene VC = vinyl chloride



5-7.5 PCE (12DCA), (C), PCE, (VC) — (2H), PCE

(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (B), (BM), cDCE, (MC), PCE, TCE, (VC)

—

B-6026 0-2.5 — — — — PCE —2.5-5 — — — — — —5-7.5 — — — — (1122TCA), (12DCA), (12DCP),

(2H), (MC), PCE, (VC) —

B-6027 0-2.5 — — — — (1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, (TCE), (VC) —


12.5-15 — — — — — —B-6029 10-12.5 — — — — (1122TCA), (MC) —B-6030 10-12.5 — — — — — —B-6031 10-12.5 — — — — (1122TCA), (MC), PCE —

Boring ID

Interval (feet)

Residential Soil

Ingestion

Residential Outdoor

Inhalation

Construction Worker Soil


Worker InhalationSoil Component of Class I

Groundwater Csat

Monitoring Well ID Groundwater Component of Class I Groundwater Residential Indoor InhalationMW-104-30 (1122TCA), (C) —

MW-6019 (11DCE), (12DCA), (12DCP), (2H), (B), (BM), (C), cDCE, (MC), (PCE), TCE, VC —*

MW-6027 (1122TCA), (C), PCE —


80312615005 -- Cook County


Three of the supplemental soil samples were further analyzed for VOCs by the toxicity characteristic leaching procedure (TCLP) test method, representing soil intervals from the proposed elevator pits, and collected from the boring intervals that exhibited the highest PID readings. The following table provides a comparison of the supplemental TCLP VOC results to the corresponding total VOC results.

Table 1-4 Supplemental TCLP & Total Volatiles Concentrations - 2020

Note: < indicates not detected at the stated detection limit

Consistent with prior testing, the TCLP VOC concentrations were below the hazardous threshold limit values.

1.5 Summary

Supplemental testing was conducted in accordance with the sampling plan conditionally approved by the Illinois EPA, and included the advancement of 16 soil borings (B-6016 through B-6031) and installation of three groundwater monitoring wells (MW-104-30, MW-6019 and MW-6027). Certain VOCs exceeded or potentially exceeded the Tier 1 remediation objectives in all of the supplemental soil borings except B-6030, and in two of the three supplemental monitoring wells (MW-6019 and MW-6027).

The supplemental testing also identified two additional soil samples where PCE exceeded the site-specific soil saturation limit, including B6020 (10-12.5) and B6021 (10-12.5), which were collected approximately 25 to 30 feet south and southeast of B6002. The supplemental testing activities better characterized site conditions, and defined the area of the soil saturation limit impacts.

As discussed in the following section, ISCO was performed to reduce PCE concentrations in the area of B6002, B6020 and B6021. Residual VOCs will be addressed through the calculation of Tier 2 objectives and exclusion of the affected exposure routes.

VOCs Included in TCLP Analyses

Comparison of TCLP and Total VOC ResultsB6024 (5-7.5) B6025 (5-7.5) B6026 (5-7.5)

TCLP (mg/L)

Total (mg/kg)

TCLP (mg/L)

Total (mg/kg)

TCLP (mg/L)

Total (mg/kg)

1,1-dichloroethene <0.100 <0.442 <0.100 <0.401 <0.100 <0.04601,2-dichloroethane <0.100 <0.442 <0.100 <0.401 <0.100 <0.04602-butanone (MEK) <0.500 <4.42 <0.500 <4.01 <0.500 <0.460Benzene <0.100 <0.110 <0.100 <0.100 <0.100 <0.0115Carbon tetrachloride <0.100 <0.442 <0.100 <0.401 <0.100 <0.0460Chlorobenzene <0.100 <0.442 <0.100 <0.401 <0.100 <0.0460Chloroform <0.100 <0.442 <0.100 <0.401 <0.100 <0.0460Tetrachloroethylene 0.155 33.7 0.577 38.0 <0.100 1.90Trichloroethylene <0.100 <0.442 <0.100 1.74 <0.100 <0.0460Vinyl Chloride <0.100 <0.442 <0.100 <0.401 <0.100 <0.0460


90312615005 -- Cook County


2.0 IN-SITU REMEDIATION & CONFIRMATION SAMPLING ACTIVITIES

2.1 In-Situ Remediation

In-situ chemical oxidation (ISCO) was performed to treat soils where PCE was recently detected above the site-specific soil saturation limit. As shown on Figure 2, the treatment zone consisted of an approximate 1,400-square-foot area on the east-central portion of the site, encompassing B6002, B6020 and B6021, with a vertical treatment interval from approximately 10 to 12.7 feet BSG.

The ISCO treatment was performed on July 29, 30 and 31, 2020, and August 6 and 7, 2020. Injection water was purchased from the Melrose Park Public Works Department, and the treatment solution was mixed on site using 7,985 pounds of sodium permanganate (RemOx L). The solution was applied through 34 injection points evenly spaced throughout the treatment zone using a track-mounted GeoProbe®; the approximate injection point locations are shown on the attached Figure 2. Approximately 76 gallons of treatment solution were applied to the first injection point, and approximately 153 gallons of treatment solution were applied to the remaining points. The injection points were backfilled with bentonite chips.

2.2 Confirmation Soil Sampling Activities & Analytical Results

Consistent with the confirmation sampling plan outlined in Section 3.4 of the Amended FSIR/ROR/RAP, the effectiveness of the ISCO treatment was evaluated though the advancement of four confirmation soil borings (CB-101 through CB-104). The borings were advanced to 15 feet BSG on August 12, 2020, and soil samples were collected using a track-mounted, hydraulic percussive GeoProbe® soil probing unit using dual-tube stainless steel barrel samplers lined with PVC sleeves. After the sample from each interval was retrieved, the undisturbed soil sample was immediately field screened within the sample liner using a Mini-Rae 2000 hand-held PID. A sample was then immediately selected from the portion of the interval displaying the highest field screening results and preserved in accordance with Method 5035 using laboratory-provided 40-milliliter vials. Additional soil volume was packed into unpreserved, pre-labeled, glass jars.

Packed soil sample containers were immediately placed on ice in a sample cooler that was retained in the possession of Pioneer personnel at all times, and upon completion of the field activities, the soil samples were delivered to Pioneer’s office and transferred directly from the cooler into a refrigerator dedicated to storing soil and groundwater samples. The samples were contained within the refrigerator until they were relinquished to the contract laboratory under standard chain-of-custody procedures. Three soil samples from each of the four confirmation borings were submitted for laboratory analysis of VOCs, targeting the 10 to 12.5-foot interval where the soil saturation limit impacts were previously detected, and the soils above and below this interval.

The initial confirmation soil sampling results revealed significant reductions in PCE concentrations. Also, the soil saturation limit was achieved in three of the four quadrants of the treatment zone, all except the northwest quadrant near B-6002, with a residual concentration of 2,850 mg/kg in CB-104 (10-12.5), which was reduced from 4,540 mg/kg [B-6002 (10-12.5)].


100312615005 -- Cook County


Considering that permanganate may persist for several weeks following an application, supplemental soil sampling was recommended to evaluate the potential that residual treatment solution could achieve further reductions in the area of B-6002/CB-104. One supplemental soil boring, CB-104-2, was advanced in the northwest quadrant of the treatment zone on October 9, 2020 in accordance with the sampling procedures discussed above; the boring was advanced to 20 feet BSG, and two soil samples were collected for analysis of VOCs, targeting the 10 to 12.5-foot interval with the residual soil saturation limit impact, and the 12 to 15-foot interval to evaluate potential vertical migration. The CB-104-2 soil sampling results revealed that the soil saturation limit was achieved.

Table No. 3 in the “Tables” section of the appendices provides a complete listing of the post-remediation soil testing results in comparison to the Tier 1 SROs. Soil boring logs for the confirmation borings are provided in Appendix B, and the confirmation sample laboratory reports are provided in Appendix D. The following Table 2-1 provides a summary of the confirmation soil sampling activities and field observations, and Table 2-2 provides a summary of the confirmation soil sample testing results.

Table 2-1 Confirmation Soil Sampling Summary

Notes: — indicates the sample was not submitted for laboratory analysis PID = photoionization detector (readings in ppm [parts per million[) VOCs = volatile organic compounds

Confirmation Boring ID

Interval (feet)

PID Readings (ppm) Field Observations Analysis Purpose

CB-101 0-2.5 0 No Odor/No Visual — Evaluate the success of the in-situ2.5-5 0 No Odor/No Visual — remediation in the southwestern portion5-7.5 0 No Odor/No Visual — of the treatment zone, near B60207.5-10 0 No Odor/No Visual VOCs10-12.5 12 No Odor/No Visual VOCs12.5-15 2 No Odor/No Visual VOCs

CB-102 0-2.5 0 No Odor/No Visual — Evaluate the success of the in-situ2.5-5 3 No Odor/No Visual — remediation in the southeastern portion5-7.5 6 No Odor/No Visual — of the treatment zone, near B60217.5-10 8 No Odor/No Visual VOCs10-12.5 320 Odor/No Visual VOCs12.5-15 202 Odor/No Visual VOCs

CB-103 0-2.5 0 No Odor/No Visual — Evaluate the success of the in-situ2.5-5 0 No Odor/No Visual — remediation in the northeastern portion5-7.5 0 No Odor/No Visual — of the treatment zone, east of B60027.5-10 13 No Odor/No Visual VOCs10-12.5 96 No Odor/No Visual VOCs12.5-15 2 No Odor/No Visual VOCs

CB-104 0-2.5 0 No Odor/No Visual — Evaluate the success of the in-situ2.5-5 0 No Odor/No Visual — remediation in the northwestern portion5-7.5 3 No Odor/No Visual — of the treatment zone, near B60027.5-10 22 No Odor/No Visual VOCs10-12.5 >5,000 Strong Odor/Brown Staining VOCs12.5-15 >5,000 Strong Odor/Brown Staining VOCs

CB-104-2 0-2.5 41 No Odor/No Visual — Assess the potential for further reductions 2.5-5 8 No Odor/No Visual — in the northwestern portion of the treatment5-7.5 8 No Odor/No Visual — zone, at B6002/CB-104 (10-12.5)7.5-10 7 No Odor/No Visual —10-12.5 212 Odor/No Visual VOCs12.5-15 7 No Odor/No Visual VOCs15-17.5 0 No Odor/No Visual —17.5-20 0 No Odor/No Visual —


110312615005 -- Cook County


Table 2-2 Confirmation Soil Sample Analytical Results Summary

Notes: — indicates no VOCs were identified above the Tier 1 SROs ( ) indicates an elevated detection limit that exceeds the Tier 1 SRO (only evaluated for confirmed VOCs) strikethrough text indicates a sample that was remediated *SG-6 was collected at CB-104 and demonstrates compliance with the Tier 1 SGROs for outdoor inhalation (see Section 2.3) 1122TCA = 1,1,2,2-tetrachloroethane 11DCE = 1,1-dichloroethene 12DCA = 1,2-dichloroethane 12DCP = 1,2-dichloropropane 2B = 2-butanone (MEK) 2H = 2-hexanone A = acetone B = benzene BM = bromomethane CD = carbon disulfide C = chloroform cDCE = cis-1,2-dichloroethylene E = ethylbenzene MC = methylene chloride PCE = tetrachloroethylen T = toluene; tDCE = trans-1,2-dichloroethylene; TX = total xylenes; TCE = trichloroethylene VC = vinyl chloride

Boring ID

Sample Interval (feet)

Tier 1 SRO Exposure Routes

CsatResidential Soil Ingestion

Residential Outdoor

Inhalation

Construction Worker


Worker InhalationSoil Component of

Class I Groundwater

CB-101 7.5-10 — — — — PCE —

10-12.5 — — — —(1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, TCE, (VC)

—

12.5-15 — — — — — —CB-102 7.5-10 — — — — PCE —

10-12.5 — (C), (VC) — (2H)(1122TCA), (11DCE), (12DCA), (12DCP), (2H), (B), (BM), (MC), PCE, (TCE), (VC)

—

12.5-15 — — — —(1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, (VC)

—

CB-103 7.5-10 — — — —(1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, TCE, (VC)

—

10-12.5 — VC — —(1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, TCE, VC

—

12.5-15 — — — — PCE —

CB-104 7.5-10 — — — —(1122TCA) (12DCA), (12DCP), (2H), (MC), PCE, (VC)

—

10-12.5

(1122TCA), (12DCA), (12DCP), (2H), (MC), PCE, (VC)

(1122TCA), (12DCA), (12DCP), (2H), (B), (BM), (C), (MC), PCE, (TCE), (VC)

PCE

(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (B), (BM), (CD), (C), (MC), PCE, (TX), (TCE), (VC)

(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (A), (B), (BM), (CD), (C), (cDCE), (E), (MC), PCE, (T), (tDCE), (TCE), (VC)

PCE

12.5-15 PCE, (VC)(1122TCA), (12DCA), (B), (C), (MC), PCE, (VC)


(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (A), (B), (BM), (C), (cDCE), (MC), PCE, (tDCE), (TCE), (VC)

—

CB-104-2 10-12.5 PCE, TCE, (VC) —* — —*

(1122TCA), (11DCE), (12DCA), (12DCP), (2B), (2H), (A), (B), (BM), (C), cDCE, (MC), PCE, (tDCE), TCE, (VC)

—

12.5-15 — — — —(1122TCA) (12DCA), (12DCP), (2H), (MC), PCE, (VC)

—


120312615005 -- Cook County


2.3 Post Remediation Soil Gas Sampling Activities & Analytical Results

In addition to the confirmation soil samples, six soil gas samples were collected from the Remediation Site. Soil gas samples from locations outside of the treatment zone (SG-1 through SG-5) were collected on August 5, 2020, and one soil gas sample from within the treatment zone (SG-6) was collected on August 12, 2020. The confirmation soil gas boring locations are shown on the attached Figure 3. The following table provides the reasoning behind the selected soil gas sampling locations.

Table 2-3 Soil Gas Sampling Summary

Active soil gas sampling was performed in general accordance with 35 IAC 742.227 and standard industry practices using the GeoProbe® and Post-Run Tubing (PRT) system. Prior to mobilizing in the field, Pioneer confirmed that the samples were not collected within 48 hours after a 0.5-inch or greater rainfall per Illinois EPA guidelines; see the precipitation data in Appendix B.

At each soil gas sample location, the PRT system was set up consisting of probe rods fitted with a PRT Adapter with O-ring, a PRT expendable point holder with O-ring, and an expendable drive point. A GeoProbe® was used to the drive probe rods to the desired sampling depth of approximately 4 feet BSG, which satisfies requirement that soil gas samples be collected from depths greater than 3 feet BSG, and above the water table per Illinois EPA guidelines. The rods were retracted approximately 4 to 6 inches to disengage the expendable tip and allow exposure to the soil. An adequate length of 0.25-inch (inside diameter) Teflon® tubing was connected to the PRT adapter and fed down through the probe rod. The Teflon® tubing was rotated until the PRT Adapter was threaded into the expendable point holder and the O-ring was firmly seated.

To create an air-tight environment around the soil gas probe, VOC-free modeling clay was used to seal around the top of the probe rod. Once sealed, field technicians waited 30 minutes to allow the subsurface conditions to equilibrate prior to sampling. A shroud system was set up over the sealed hole and a helium gas canister line and 60-cc syringe tubing were connected to the respective ports on the shroud system. Lastly, a laboratory-provided summa canister was connected to the T-manifold on the sampling train with the in-line pressure regulator/vacuum gauge.

After the soil gas probe had been sealed for a minimum of 30 minutes, the shroud was covered with plastic sheeting to create a “closed” environment. A vacuum check was performed on the sampling train by using an in-line pressure regulator/vacuum gauge to apply a vacuum to the system with a 60-cc syringe and

Soil Gas Sample ID Purpose

SG-1 General site coverage along former sewer line

SG-2 Evaluate conditions near TT-107 (at the rear of the former dry cleaning facility), which identified the highest PCE concentration in shallow soils during the 2016/2019 sampling events [PCE = 21.3 mg/kg at TT-107 (2-4)]

SG-3 General site coverage, west of the former dry cleaning facility, near B2200 at the 7617-7621 Lake Street property

SG-4 Evaluate conditions near B6012, which identified the highest PCE concentration outside of the treatment zone during the 2016/2019 sampling events [PCE = 354 mg/kg at B6012 (7.5-10)]

SG-5 Evaluate conditions along the eastern property boundary, near MW-6019, which identified vinyl chloride above the Tier 1 GRO for residential indoor inhalation

SG-6 Evaluate conditions within the treatment zone, near CB-104


130312615005 -- Cook County


monitoring the gauge to ensure vacuum remained steady for approximately 30 seconds. Once the vacuum test passed, a Radiodetection MGD 2002 Multi-Gas Leak Locator was connected to the tubing port where the syringe was previously connected, and the shroud was filled with helium tracer gas (as approved by the Illinois EPA). No helium was detected in the sampling train; therefore, the Radiodetection MGD 2002 Multi-Gas Leak Locator was disconnected and the 60-cc syringe was reconnected to the system. A minimum of three air volumes were purged from the sampling system and the sample vacuum was monitored during purging to ensure high vacuum pressures were avoided in order to maintain equilibrium in the soil. Prior to sample collection, the initial canister pressure was recorded.

To begin sampling, the valve on the T-manifold was opened and the soil gas sample was collected through the sampling train directly into the laboratory-provided summa canister set at a flow rate of 200 ml/min. The final canister pressure was recorded at the completion of sampling activities. Upon completion of sampling, the boreholes were backfilled with hydrated bentonite to surface grade, and the canisters were relinquished to or shipped to the contract laboratory under standard chain-of-custody procedures for analysis of VOCs using USEPA Test Method TO-15.

The attached Table No. 4 (in the “Tables” section of the appendices) provides a complete listings of the soil gas testing results in comparison to the Tier 1 SGROs; the corresponding laboratory reports are provided in Appendix D. The following Table 2-4 provides a summary of the post-remediation soil gas testing results.

Table 2-4 Summary of Post-Remediation Soil Gas Testing Results

Notes: -- indicates no VOCs were identified above the Tier 1 SGROs SG-5 was collected at MW-6019 and demonstrates compliance with the indoor inhalation objectives SG-6 was collected at CB-104 and demonstrates compliance with the outdoor inhalation objectives PCE = tetrechloroethylene; TCE = trichloroethylene

2.4 Conclusions

The ISCO treatment reduced PCE concentrations to below the site-specific soil saturation limit. Residual VOCs will be addressed through the calculation of Tier 2 objectives and exclusion of the affected exposure routes using engineering, preventive and institutional controls as discussed in the following ROR Addendum and RAP Addendum sections.

Note that the 2016, 2019 and 2020 sampling activities were not intended to replace all of the prior testing results; therefore, all historical data will be addressed with the exception of the two areas specifically resampled in 2019 to evaluate conditions at B3100 and B3800. Going forward, the soil sample results at B6009 replace the results for B3100, and the results at B6011 replace the results for B3800. The attached Figures 2 through 8 identify cumulative sample locations where VOCs exceed the Tier 1 objectives.

Sample ID Tier 1 SGRO Exposure RoutesResidential Outdoor Inhalation Construction Worker Inhalation Residential Indoor Inhalation

SG-1 -- -- --SG-2 -- -- --SG-3 -- -- --SG-4 -- -- PCESG-5 -- -- --SG-6 -- -- PCE, TCE


140312615005 -- Cook County


3.0 REMEDIATION OBJECTIVES REPORT ADDENDUM

3.1 Summary of Residual Impacts

Complete listings of the soil, groundwater and soil gas testing results in comparison to the Tier 1 objectives are provided in Tables Nos. 1 through 4 in the “Tables” section of the appendices. Note that soil sample results at B6009 and B6011 replace the results at B3100 and B3800, respectively. Also, analytical results for pre-remediation samples that fall within the ISCO treatment zone are replaced by the analytical results from CB-101 through CB-104-2. The pre-remediation samples that are replaced by confirmation sample results include B-6002 (10-12.5’), B-6020 (10-12.5’), B-6021 (10-12.5’), B3300 (10-12’), B4300 (10-12.5’) and B4600 (10-12.5’). The following tables provide summaries of the soil, groundwater and soil gas samples where targeted parameters remain above the Tier 1 objectives.

Table 3-1 Residual VOCs in Soil

Soil Boring ID

Sample Interval

Applicable Tier 1 Exposure RoutesResidential

Soil IngestionResidential

Outdoor InhalationConstruction

Worker IngestionConstruction


Class I GroundwaterB100 8-10 √ √ -- √ √B100 26-28 -- -- -- -- (√)B200 0-2 -- -- -- -- √B200 6-8 √ √ -- √ √B200 20-22 -- -- -- -- (√)B300 0-2 -- -- -- -- √B300 6-8 -- -- -- -- √B300 18-20 -- -- -- -- (√)B400 0-2 -- -- -- -- √B400 6-8 √ √ -- √ √B400 18-20 -- -- -- -- √B500 0-2 √ √ -- √ √B600 0-2 √ √ -- √ √B600 8-10 √ √ -- √ √B600 22-24 -- -- -- -- (√)B700 0-2 -- -- -- -- √B700 8-10 √ √ -- -- √B700 22-24 -- -- -- -- (√)B800 0-2 -- -- -- -- √B800 6-8 √ √ -- -- √B800 22-24 -- -- -- -- (√)B900 0-2 -- -- -- -- (√)B900 8-10 -- -- -- -- √B900 12-14 -- -- -- -- (√)B1000 0-2 -- -- -- -- √B1000 8-10 √ √ -- -- √B1000 22-24 -- -- -- -- (√)B1100 0-2 -- -- -- -- √B1100 6-8 √ √ -- -- √


150312615005 -- Cook County


B1100 22-24 -- -- -- -- (√)B1200 0-2 -- -- -- -- (√)B1200 8-10 √ √ -- -- √B1200 22-24 -- -- -- -- (√)B1800 6-8 -- -- -- -- √B1900 6-8 -- -- -- -- √B2000 6-8 -- -- -- -- √B2100 6-8 √ √ -- -- √B2200 6-8 √ √ -- -- √B2300 6-8 -- -- -- -- √B2400 6-9 -- -- -- -- √B2500 0-2 √ √ -- √ √B2600 2-4 √ √ -- -- √B2700 8-10 √ √ -- √ √B2700 14-15 -- -- -- -- (√)B2900 0-3 √ √ -- √ √B3000 6-9 √ √ -- √ √B3000 9-12 -- -- -- -- (√)B3200 8-10 √ √ -- √ √B3200 16-18 √ √ -- -- √B3300 16-18 √ √ -- √ √B3800 16.5-18 -- -- -- -- √B4100 10-12.5 -- -- -- -- √B4100 22.5-25 -- -- -- √ √B4200 2.5-5 √ √ -- -- √B4200 22.5-25 -- -- -- -- (√)B4300 22.5-25 -- -- -- -- (√)B4400 6-9 √ √ -- √ √B4400 21-24 -- -- -- -- (√)B4500 7.5-10 -- -- -- -- √B4500 22.5-25 -- -- -- -- √B4600 22.5-25 -- -- -- -- √B4700 22.5-25 -- -- -- -- √B4800 0-2.5 -- -- -- -- √B4800 22.5-25 -- -- -- -- (√)B4900 0-2.5 √ √ -- √ √B4900 22.5-25 -- -- -- -- √B5000 6-9 √ √ -- √ √B5000 21-24 -- -- -- -- √B5100 6-9 √ √ -- √ √B5100 21-24 -- -- -- -- (√)B5200 6-9 √ √ -- √ √B5200 21-24 -- -- -- -- (√)B5300 6-9 √ √ -- √ √B5300 21-24 -- -- -- -- √

Soil Boring ID

Sample Interval






Class I Groundwater


160312615005 -- Cook County


B5400 6-9 -- -- -- -- √B5400 21-24 -- -- -- -- √TT-100 6-8 -- -- -- -- √TT-100 10-12 -- -- -- -- √TT-100 16-18 √ √ -- √ √TT-101 6-8 -- -- -- -- √TT-101 12-14 √ √ -- √ √TT-101 20-22 √ √ -- √ √TT-102 0-2 -- -- -- -- √TT-102 6-8 -- -- -- -- √TT-102 10-12 -- -- -- -- √TT-103 0-2 √ √ -- √ √TT-103 4-6 -- -- -- -- √TT-104 6-8 -- -- -- -- √TT-104 14-16 -- -- -- -- (√)TT-105 0-2 -- -- -- -- √TT-105 6-8 √ √ -- √ √TT-106 2-4 -- -- -- -- √TT-106 4-6 -- -- -- -- √TT-107 2-4 √ √ -- -- √TT-107 6-8 -- -- -- -- √TT-110 6-8 -- -- -- -- √TT-111 6-8 √ √ -- √ √TT-112 0-2 -- -- -- -- √TT-112 6-8 -- -- -- -- √TT-113 0-2 -- -- -- -- √TT-113 4-6 -- -- -- -- √TT-114 0-2 -- -- -- -- √TT-114 4-6 -- -- -- -- √TT-115 2-4 -- -- -- -- √TT-115 6-8 √ √ -- -- √TT-115A 8-10 √ √ -- √ √TT-115A 10-12 -- -- -- -- √TT-116 0-2 -- -- -- -- √TT-116 6-8 √ √ -- -- √TT-117 0-2 √ √ -- -- √TT-117 6-8 √ √ -- √ √B6002 0-2.5 -- -- -- -- √B6002 5-7.5 -- -- -- -- √B6003 0-2.5 -- -- -- -- √B6004 0-2.5 -- -- -- -- √B6005 0-2.5 -- -- -- -- √B6005 5-7.5 -- -- -- -- √B6006 0-2.5 -- -- -- -- √B6007 2.5-5 -- -- -- -- √

Soil Boring ID

Sample Interval






Class I Groundwater


170312615005 -- Cook County


B6008 5-7.5 -- -- -- -- √B6009 7.5-10 √ √ -- √ √B6010 2.5-5 √ √ -- -- √B6010 5-7.5 -- -- -- -- √B6011 7.5-10 √ √ -- √ √B6012 7.5-10 √ √ -- √ √B6013 10-12.5 -- -- -- -- √B6014 7.5-10 √ √ -- √ √B6015 7.5-10 √ √ -- √ √B6016 10-12.5 √ √ -- √ √B6016 12.5-15 -- -- -- -- (√)B6017 10-12.5 √ √ — √ √B6017 12.5-15 -- -- -- -- √B6018 0-2.5 -- -- -- -- √B6018 5-7.5 -- -- -- -- √B6018 10-12.5 √ √ -- √ √B6018 12.5-15 -- -- -- -- (√)B6019 10-12.5 √ √ — √ √B6019 12.5-15 -- -- -- -- (√)B6020 7.5-10 -- -- -- -- √B6020 12.5-15 -- -- -- -- √B6022 10-12.5 √ √ -- √ √B6023 10-12.5 -- -- -- -- √B6024 0-2.5 -- -- -- -- √B6024 2.5-5 -- -- -- -- √B6024 5-7.5 √ √ -- √ √B6025 0-2.5 -- -- -- -- √B6025 2.5-5 -- -- -- -- √B6025 5-7.5 √ √ -- √ √B6026 0-2.5 -- -- -- -- √B6026 5-7.5 -- -- -- -- √B6027 0-3 -- -- -- -- √B6028 0-3 -- -- -- -- √B6029 10-12.5 -- -- -- -- (√)B6031 10-12.5 -- -- -- -- √CB101 7.5-10 -- -- -- -- √CB101 10-12.5 -- -- -- -- √CB102 7.5-10 -- -- -- -- √CB102 10-12 -- (√) -- -- √CB102 12.5-15 -- -- -- -- √CB103 7.5-10 -- -- -- -- √CB103 10-12.5 -- √ -- -- √CB103 12.5-15 -- -- -- -- √CB104 7.5-10 -- -- -- -- √CB104-2 10-12 √ --* -- --* √

Soil Boring ID

Sample Interval






Class I Groundwater


180312615005 -- Cook County


Notes: -- = no VOCs were detected above the Tier 1 SROs for this exposure route √ = at least one confirmed VOC was detected above the Tier 1 SRO (√) = no VOCs were detected above the Tier 1 SRO; however, a detection limit for a confirmed VOC exceeds the Tier 1 SRO --* = soil gas results are being used to evaluate the outdoor inhalation and construction worker inhalation exposure routes

Table 3-2 Residual VOCs in Groundwater

Notes: -- = no VOCs were detected above the Tier 1 GROs for this exposure route √ = at least one confirmed VOC was detected above the Tier 1 GRO (√) = no VOCs were detected above the Tier 1 GRO; however, a detection limit for a confirmed VOC exceeds the Tier 1 GRO --* = soil gas results are being used to evaluate the indoor inhalation exposure route (SG-2 near MW600; SG-5 near MW-6019)

Table 3-3 Residual VOCs in Soil Gas

Notes: -- = no VOCs were detected above the Tier 1 SGROs for this exposure route √ = at least one confirmed VOC was detected above the Tier 1 SGRO

CB-104-2 12.5-15 -- -- -- -- √

Soil Boring ID

Sample Interval






Class I Groundwater

Groundwater Sample ID

Applicable Tier 1 Exposure RoutesGroundwater Component of Class I

Groundwater Ingestion Residential Indoor Inhalation

Northern & Boonestroo (2001, 2009 or 2010)MW600 √ --*MW900 √ --MW1000 √ √MW1300 (√) --MW1600 (√) --MW1800 (√) --

Tetra Tech (2016)MW1000 √ √MW1800 (√) --TT-MW-100 √ √TT-MW-101 √ √TT-MW-102 √ --TT-MW-104 (√) --TT-MW-108 (√) --TT-MW-111 (√) --

Pioneer (2019 or 2020)MW900 √ --MW1300 (√) --MW1600 (√) --MW1800 (√) --MW-104-30 (√) --MW-6019 √ --*MW-6027 √ --

Soil Gas Sample ID

Applicable Tier 1 Exposure RoutesResidential Outdoor Inhalation Construction Worker Inhalation Residential Indoor Inhalation

SG-4 -- -- √SG-6 -- -- √


190312615005 -- Cook County


All residual contaminant concentrations will be addressed through the calculation of Tier 2 remediation objectives or through the exclusion of the affected exposure routes using engineering, preventive and institutional controls as outlined in the following table.

Table 3-4 Overall Approach for Addressing the Identified Contaminants

Note: -- = no VOCs were detected above the Tier 1 SGROs for this exposure route

3.2 Tier 2 Evaluation

Pioneer performed a Tier 2 evaluation to determine site-specific remediation objectives for the indoor inhalation exposure route. As outlined in Section 742.600(e) of the TACO regulations, prior to conducting a Tier 2 evaluation at a site, certain minimum requirements must be evaluated and satisfied. These requirements are provided below and are followed by an explanation of how they apply to the Remediation Site.

• For each discrete sample, the total soil contaminant concentration of either a single contaminant or multiple contaminants of concern shall not exceed the attenuation capacity of the soil as provided under Section 742.215 (Section 742.600(e)(1));

The default soil attenuation capacities for surface and subsurface soil are 6,000 and 2,000 mg/kg, respectively. Following in-situ remediation, the maximum potential sum of VOCs (determined using detected concentrations and detection limits for non-detect compounds) is 1,581.51 mg/kg [CB-104-2 (10-12.5)]. Thus, residual VOCs are below the default soil attenuation capacity values, and this requirement is satisfied.

• Remediation objectives for noncarcinogenic compounds which affect the same target organ, organ system or similar mode of action shall meet the requirements of Section 742.720 (Section 742.600(e)(2));

Tier 2 remediation objectives are being calculated for PCE. Via the inhalation exposure route, PCE is identified as a similar-acting non-carcinogenic chemical that affects the nervous system. Other chemicals detected at the site that also affect the nervous system via inhalation are carbon disulfide, toluene, trichloroethylene, and xylenes. Therefore, the Tier 2 objectives calculated for PCE under a non-carcinogenic scenario will be divided by five to account for potential cumulative effects.

Note that PCE is identified as having both non-carcinogenic and carcinogenic effects. Therefore, pursuant to 742.600(k), Tier 2 objectives have been calculated for PCE as both a non-carcinogen and a carcinogen, and the more stringent Tier 2 objective will be utilized.

Applicable Tier 1 Exposure Routes

Residential Soil Ingestion

Residential Outdoor

Inhalation

Construction Worker Soil Ingestion

Construction Worker

Inhalation

Soil Component of Class I

Groundwater

Groundwater Component of

Class I Groundwater

Residential Indoor Inhalation

Engineered Barriers

Engineered Barriers -- Preventive

Controls Local Ordinance Local OrdinanceTier 2 Objective & Building Control

Technology


200312615005 -- Cook County


• The soil remediation objectives based on the outdoor inhalation exposure route and the soil component of the groundwater ingestion exposure route shall not exceed the soil saturation limit as provided in Section 742.220 (Section 742.600(e)(3)).

This requirement does not apply since Tier 2 SROs are not being calculated for the outdoor inhalation exposure route.

• The soil gas remediation objectives based on the indoor or outdoor inhalation exposure routes shall not exceed the soil vapor saturation limit provided pursuant to Section 742.222 (Section 742.600(e)(4)).

It is noted that the Tier 2 SGRO for the indoor inhalation exposure route shall not exceed the soil vapor saturation limit.

• Tier 2 remediation objectives for the indoor inhalation exposure route shall be calculated for either soil gas or groundwater if a Qsoil value of 83.33 cm3/sec is used (Section 742.600(f)).

Tier 2 objectives are being calculated for the indoor inhalation exposure route using a Qsoil value of 83.33 cm3/sec.

• Tier 2 remediation objectives for the indoor inhalation exposure route shall be calculated for both soil gas and groundwater if a Qsoil value of 0.0 cm3/sec is used (Section 742.600(g)).

As noted above, the Tier 2 objectives for the indoor inhalation exposure route are being calculated using a Qsoil value of 83.33 cm3/sec.

• For the indoor inhalation exposure route, Appendix C, Table L applies only when the existing or potential building has a full concrete slab-on-grade or full concrete basement floor and walls; and institutional controls under Subpart J are required to develop remediation objectives pursuant to Appendix C, Table L (Section 742.600(l)).

The proposed on-site structure is expected to be constructed atop a full concrete slab-on-grade with no applicable sumps. The eventual NFR letter for the Remediation Site shall serve as the required institutional control.

Since each of these initial conditions is satisfied, Tier 2 remediation objectives were calculated as discussed below.

3.2.1 Tier 2 GRO and SGRO - Residential Indoor Inhalation

Pioneer understands that the current published Tier 1 GRO and SGRO for PCE for the indoor inhalation exposure route were calculated using an outdated inhalation unit risk factor. Therefore, the updated, chemical-specific inhalation unit risk factor for PCE [2.6 x 10-7 (µg/m3)-1] was used for the Tier 2 calculations.


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The calculations were performed using J&E Groundwater and Soil Gas Equations for the Indoor Inhalation Exposure Route, using a default total thickness of the soil layer (142.4 cm), default moisture content (0.1 g/g), default dry bulk density (1.5 g/cm3), default soil particle density (2.65 g/cm3), and Qsoil value of 83.33 cm3/s. The remediation objectives were calculated for both non-carcinogenic and carcinogenic effects pursuant to 742.600(k). See Spreadsheets 1 and 2 in Appendix E for the variables and calculations used to determine the Tier 2 GRO and SGRO for PCE.

The Tier 2 objectives yielded by the equations for non-carcinogens and adjusted for potential cumulative effects are more stringent than the values calculated for carcinogens. Thus, the adjusted non-carcinogenic values are the proposed Tier 2 objectives. The proposed Tier 2 SGRO is below the default soil vapor saturation limit of 180,000 mg/m3; therefore, the requirements of 742.600 have been satisfied, and the calculated Tier 2 GRO and SGRO are allowable.

The following table provides a comparison of the PCE concentrations exceeding the Tier 1 objectives for residential indoor inhalation to the proposed Tier 2 objectives.

Table 3-5 Comparison of Concentrations Exceeding the Tier 1 Indoor Inhalation Objectives to the Proposed Tier 2 GRO and SGRO

Notes: PCE = tetrachloroethylene * the sample also has trichloroethylene and vinyl chloride at concentrations exceeding the indoor inhalation Tier 1 GROs Bold text indicates the PCE concentration exceeds the proposed Tier 2 objective

The indoor inhalation exposure route impacts at TT-MW-100 and SG-6 will be addressed through pathway exclusion as discussed below.

3.3 Exposure Route Evaluation

An exposure route evaluation is provided below to address the affected exposure routes, which include residential soil ingestion and outdoor inhalation, construction worker inhalation, the soil and groundwater components of Class I groundwater, and residential indoor inhalation. As outlined in 35 IAC 742.305, prior to exclusion of any pathways, certain minimum requirements must be evaluated and satisfied. These requirements are provided below and are followed by an explanation of how they apply to the Remediation Site.

3.3.1 Contaminant Source and Free Product Determination

• The sum of the concentrations of all organic COCs shall not exceed the attenuation capacity of the soil as determined under Section 742.215 (Section 742.305(a));

As discussed in Section 2.2, this requirement has been satisfied.

Sample ID Residential Indoor Inhalation Proposed Tier 2 GRO or SGROMW1000 PCE = 0.125 mg/L

1.82 mg/LTT-MW-100 PCE = 2.14 mg/L*TT-MW-101 PCE = 0.303 mg/LSG-4 PCE = 2.24 mg/m3 11 mg/m3SG-6 PCE = 68.1 mg/m3


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• The concentrations of any organic COCs remaining in the soil shall not exceed the soil saturation limit as determined under Section 742.220 (Section 742.305(b)).

Following the in-situ remediation activities discussed in Section 2.0, the site-specific soil saturation limit for PCE has been achieved. Also, no other VOCs were identified at concentrations exceeding the soil saturation limits; therefore, this requirement is satisfied.

• Any soil which contains COCs shall not exhibit characteristics of reactivity for hazardous waste (Section 742.305(c));

Although no soil samples from the Remediation Site have been analyzed for reactivity, based on the source of the contamination (dry cleaning operations), there is no evidence that soils at the Remediation Site would exhibit the characteristics of reactivity.

• Any soil which contains COCs shall not exhibit a pH less than or equal to 2.0 or greater than or equal to 12.5 (Section 742.305(d)); and,

A total of four soil samples collected from the Remediation Site were analyzed for pH (S101; S903; S907 and S-3408), and the analytical results identified pH values ranging from 7.2 and 8.8 standard units. Based on the analytical results, and the source of contamination (chlorinated dry cleaning solvent), there is no evidence that soils at the Remediation Site would exhibit a pH less than 2.0 or greater than 12.5 standard units.

• Any soil which contains arsenic, barium, cadmium, chromium, lead, mercury, selenium or silver shall not exhibit any of the characteristics of toxicity for hazardous waste (Section 742.305(e)); and,

Metals are not indicator contaminants for dry cleaning operations; therefore, there is no evidence that soils at the Remediation Site would exhibit the characteristics of RCRA 8 metals toxicity.

• If COCs include polychlorinated biphenyls (PCBs), the concentration of any PCBs in the soil shall not exceed 50 parts per million (Section 742.305(f)).

PCBs are not applicable COCs for the Remediation Site; therefore, this requirement does not apply.

• The concentration of any contaminant of concern in soil gas shall not exceed 10% of its Lower Explosive Limit (LEL) as measured by a hand held combustible gas indicator that has been calibrated to manufacturer specifications (Section 742.305(g));

No contaminants have been identified at concentrations exceeding their lower explosive limits.

Based on the above evaluation, exclusion of the affected exposure routes at the Remediation Site is allowable. As discussed in the following sections, additional criteria must be satisfied before the specific exposure pathways can be formally excluded from consideration.


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3.3.2 Outdoor Inhalation and Soil Ingestion Exposure Routes

The outdoor inhalation and soil ingestion Tier 1 objectives were exceeded at the residual sampling locations outlined in the following table, and highlighted on the attached Figures 4 through 7.

Table 3-6 Residual Soil Samples Where VOCs Exceed Tier 1 Objectives for the Outdoor Inhalation or Soil Ingestion Exposure Route

Soil Boring ID

Sample Interval


Residential Outdoor Inhalation


Construction Worker Inhalation

B100 8-10 √ √ -- √B200 6-8 √ √ -- √B400 6-8 √ √ -- √B500 0-2 √ --* -- --*B600 0-2 √ --* -- --*

8-10 √ --* -- --*B700 8-10 √ √ -- --B800 6-8 √ √ -- --B1000 8-10 √ √ -- --B1100 6-8 √ √ -- --B1200 8-10 √ √ -- --B2100 6-8 √ --* -- --B2200 6-8 √ --* -- --B2500 0-2 √ --* -- --*B2600 2-4 √ --* -- --B2700 8-10 √ √ -- √B2900 0-3 √ √ -- √B3000 6-9 √ √ -- √B3200 8-10 √ √ -- √

16-18 √ √ -- --B3300 16-18 √ --* -- --*B4100 22.5-25 -- -- -- √B4200 2.5-5 √ √ -- --B4400 6-9 √ √ -- √B4900 0-2.5 √ --* -- --*B5000 6-9 √ √ -- √B5100 6-9 √ --* -- --*B5200 6-9 √ √ -- √B5300 6-9 √ √ -- √TT-100 16-18 √ √ -- √TT-101 12-14 √ √ -- √

20-22 √ √ -- √TT-103 0-2 √ √ -- √TT-105 6-8 √ √ -- √TT-107 2-4 √ --* -- --*TT-111 6-8 √ √ -- √TT-115/A 6-8 √ √ -- --

8-10 √ √ -- √


240312615005 -- Cook County


Notes: -- indicates no VOCs were identified above the Tier 1 SROs for the exposure pathway --* = soil gas results are being used to evaluate the outdoor inhalation exposure route √ indicates a VOC was identified above the Tier 1 objectives for the exposure pathway

Pursuant to 35 IAC 742.310 and 742.315, the outdoor inhalation and soil ingestion exposure route may be excluded from consideration if the following criteria are satisfied:

• The requirements of Sections 742.300 and 742.305 are met (Sections 742.310(b) & 742.315(a));

Justification that the requirements of Sections 742.300 and 742.305 have been met was provided in preceding sections of this report. Therefore, this requirement has been satisfied.

• An approved engineered barrier is in place that meets the requirements of Subpart K (Sections 742.310(a)(1) & 742.315(b));

Engineered barriers that meet the requirements of Part 742, Subpart K will be utilized to eliminate the outdoor inhalation and soil ingestion exposure routes at the Remediation Site. Based on the analytical results, the engineered barriers will encompass a portion of the Remediation Site as shown on the attached Figures 4 and 5 (note that the barrier for soil ingestion encompasses the barrier for outdoor inhalation).

Descriptions of the types of engineered barriers proposed for the Remediation Site are discussed in Section 4.3.2 of this report.

• Safety precautions for the construction worker are taken if the Tier 1 construction worker remediation objectives are exceeded; and (Sections 742.310(c) & 742.315(c));

TT-116 6-8 √ √ -- --TT-117 0-2 √ √ -- --

6-8 √ √ -- √B6009 7.5-10 √ √ -- √B6010 2.5-5 √ √ -- --B6011 7.5-10 √ --* -- --*B6012 7.5-10 √ --* -- --*B6014 7.5-10 √ √ -- √B6015 7.5-10 √ √ -- √B6016 10-12.5 √ √ -- √B6017 10-12.5 √ √ -- √B6018 10-12.5 √ √ -- √B6019 10-12.5 √ --* -- --*B6022 10-12.5 √ --* -- --*B6024 5-7.5 √ √ -- √B6025 5-7.5 √ √ -- √CB102 10-12 -- (--)* -- --CB103 10-12.5 -- √ -- --CB104-2 10-12 √ --* -- --*

Soil Boring ID

Sample Interval


Residential Outdoor Inhalation


Construction Worker Inhalation


250312615005 -- Cook County


Certain VOCs remain at concentrations exceeding the Tier 1 SROs for the construction worker inhalation exposure route. Note that soil gas testing results suggest that residual VOCs do not represent a threat to construction worker inhalation; however, as a conservative measure, construction workers will be notified of the site’s contaminant conditions prior to performing intrusive work within the area depicted on Figure 7.

• An institutional control, in accordance with Subpart J, will be placed on the property (Sections 742.310(d) & 742.315(d));

The eventual NFR letter issued for the Remediation Site will be used as an institutional control regarding maintenance of engineered barriers and construction worker notification.

Based on this evaluation, exclusion of the outdoor inhalation and soil ingestion exposure routes is allowable pursuant to Sections 742.310 and 742.315.

3.3.3 Residential Indoor Inhalation Exposure Route

The Tier 2 objectives for the residential indoor inhalation exposure route were exceeded at TT-MW-100 and SG-6; see the attached Figure 8.

Pursuant to 35 IAC 742.312, the indoor inhalation exposure route may be excluded from consideration if the following criteria are satisfied:

• No building or man-made pathway exists or will be placed above contaminated soil gas or groundwater exceeding Tier 1 remediation objectives for residential property (Appendix B, Table H), provided, however, that there is also no soil or groundwater contamination exceeding Tier 1 remediation objectives for residential property (Appendix B, Table A) or Class I groundwater (Appendix B, Table E) located 5 feet or less, horizontally, from any existing or potential building or man-made pathway (Section 742.312(b)(1)(A)); or

• An approved building control technology is in place or will be placed that meets the requirements of Subpart L (Section 742.312(b)(1)(B));

An appropriate building control technology (BCT) will be installed for the affected interior portions of the building that fall within the BCT areas depicted on Figure 8. Note that the indoor inhalation impacts at TT-MW-100 and SG-6 are defined by groundwater or soil gas results at MW1300/MW1600 to the north, SG-5 and MW1000 to the east, TT-MW-108 to the south, and SG-4 and TT-MW-101 to the west. A description of the BCT proposed for the Remediation Site is provided in Section 4.3.4 herein.

• The requirements of Sections 742.300 and 742.305 are met (Section 742.312(b)(2));

Justification that the requirements of Sections 742.300 and 742.305 have been met was provided in preceding sections of this report. Therefore, this requirement has been satisfied.


260312615005 -- Cook County


• An institutional control, in accordance with Subpart J, will be placed on the property (Section 742.312(b)(3));

The eventual NFR Letter issued for the Remediation Site will be used as an institutional control to satisfy this requirement.

3.3.4 Groundwater Ingestion Exposure Route

To address residual VOCs with respect to the groundwater ingestion pathway, the soil and groundwater components of the Class I groundwater ingestion exposure route will be excluded from consideration pursuant to Section 742.320, as outlined below.

• The requirements of Sections 742.300 and 742.305 are met (Section 742.320(a));

Justification that the requirements of Sections 742.300 and 742.305 have been met was provided in preceding sections of this report. Therefore, this requirement is satisfied.

• The corrective action measures have been completed to remove any free product to the maximum extent practicable (Section 742.320(b));

No physical evidence of free product was observed at the Remediation Site during the subsurface investigation activities, and in-situ remediation activities successfully addressed PCE concentrations exceeding the site-specific soil saturation limit. Therefore, this requirement is satisfied.

• The source of the release is not located within the minimum or designated maximum setback zone or within a regulated recharge area of a potable water supply well (Section 742.320(c));

As documented in Section 1.7.3 and Appendix D of the Amended FSIR/ROR/RAP, dated January 15, 2020, there were no designated maximum setback zones or regulated recharge areas within a 2,500-foot radius of the Remediation Site; however, three water wells were identified within 2,500 feet of the Remediation Site. The nearest of the three water wells was identified approximately 1,000 feet east/southeast of the Remediation Site, putting the minimum (200-foot) setback zone approximately 800 feet from the Remediation Site. Based on this information, the Remediation Site is not located within the minimum or designated maximum setback zone or within a regulated recharge area, and this requirement is satisfied.

• As demonstrated in accordance with Section 742.1015, for any area within the measured and modeled extent of groundwater contamination above what would otherwise be the applicable Tier 1 GRO, an ordinance adopted by the unit of local government is in place that effectively prohibits the installation of potable water supply wells (and the use of such wells) (Section 742.320(d));

The Remediation Site and all areas within the measured and modeled extent of groundwater contamination are located within the Village of River Forest, which maintains an Illinois EPA-approved ordinance (ordinance #2814) that prohibits the use of groundwater within the Village limits. Therefore, this requirement is satisfied.


270312615005 -- Cook County


• As demonstrated using Equation R26, the concentration of any COC in the groundwater within the minimum or designated maximum setback zone of an existing potable water supply well will meet the applicable Tier 1 groundwater remediation objective (Section 742.320(e));

As noted above, there are no designated maximum setback zones within a 2,500-foot radius of the Remediation Site, and the nearest minimum (200-foot) setback zone for a potable well is approximately 800 feet east/southeast of the Remediation Site. Fate and transport modeling calculations performed using Equation R26 demonstrate that the residual contamination at the Remediation Site is predicted to achieve the Tier 1 GROs for Class I groundwater at a maximum distance of 388.25 feet (see the following Section 3.4). Consequently, none of the residual VOCs are within or predicted to extend into the minimum or designated maximum setback zone of an existing potable water supply well, and this requirement is satisfied.

• As demonstrated using Equation R26, the concentration of any COC in groundwater discharging into a surface water will meet the applicable surface water quality standard under 35 IAC 302 (Section 742.320(f));

To determine if residual VOC concentrations have the potential to impact surface water, Pioneer used RBCA Equation R26 to determine the predicted contaminant concentrations at the distance to the nearest body of surface water (see the following Section 3.4). The closest surface water body is the Des Plaines River, the nearest point of which is located approximately 3,575 feet west of the Remediation Site. As documented in a spreadsheet included in Appendix E herein, the predicted contaminant concentrations 3,575 feet from the source area are below the surface water quality standards/derived water quality criteria; therefore, discharge to surface water does not represent a concern and this requirement is satisfied.

Based on this evaluation, exclusion of the soil and groundwater components of the groundwater ingestion exposure route is allowable.

3.4 Fate and Transport Modeling

As required by Section 742.320, groundwater modeling activities were performed using default TACO equations to predict the maximum extent of potential contaminant migration in groundwater. The modeling calculations were performed using spreadsheets prepared by Pioneer. See Appendix E of this report for spreadsheets outlining the applicable parameters and completed calculations; Spreadsheet 3 presents the calculations to determine the predicted contaminant migration from soil to groundwater for VOCs identified above the Tier 1 SROs; Spreadsheet 4 presents the calculations to determine the predicted distances to achieve the Tier 1 GROs for Class I groundwater; and Spreadsheet 5 presents the calculations to determine the predicted contaminant concentrations at the nearest surface water body.

Default and chemical-specific input variables provided in TACO and several site-specific variables were used in the fate and transport modeling equations. Default values were used for mixing zone depth, dry soil bulk density, total soil porosity and the source width in the vertical plane; default “subsurface” soil values were


280312615005 -- Cook County


used for air and water filled porosity. Site-specific variables used in the calculations are summarized in the following table.

Table 3-7 Site-Specific Variables for Fate & Transport Modeling Calculation

Notes: (1) 2-hexanone will be evaluated using the maximum elevated detection limit in groundwater instead of the maximum elevated detection limit in soil; refer to Section 3.4.1

To simplify the modeling and avoid the need for calculating the predicted extent of migration from each sample that exceeds the Tier 1 objectives for Class I groundwater, the modeling presented herein is based on the maximum detected concentrations or maximum elevated detection limits, and the predicted extents of contamination are modeled from the site boundaries.

Pioneer used SSL Equation S18 to predict contaminant migration from soil to groundwater (see Spreadsheet 3 in Appendix E), and the corresponding predicted groundwater concentrations, or detected groundwater concentrations (where greater than the predicted concentrations) were used in RBCA Equation R26 to determine the potential contaminant migration distances (Spreadsheet 4 in Appendix E). The following table summarizes the results of the fate and transport modeling calculations.

Table 3-8 Summary of Equations S18 and R26 Results

Variable Value Source

Source Width Parallel to Groundwater Flow Direction in Horizontal Plane (“L”)

175 feet Longest southerly to northerly dimension of the estimated source area parallel to the directions of flow; see Figure 9

Source Width Perpendicular to Groundwater Flow Direction in Horizontal Plane (“Sw”)

234 feet Longest easterly to westerly dimension of the estimated source area perpendicular to the directions of flow; see Figure 9

Tier 3 Source Width for 2-hexanone Perpendicular to Groundwater Flow Direction in Horizontal Plane (“Sw”)

44 feet(1) Estimated base on the distance from the one monitoring well with an elevated detection limit for 2-hexanone (MW-6019) to the nearest well where the 2-hexanone detection limit is below the GRO for Class I groundwater (TT-MW-100); see Figure 9

Hydraulic Conductivity (K) 5.32 x 10-5 cm/s In-situ slug testing of MW-104-30 (see Appendix C herein)

Hydraulic Gradient (i) 0.04942 Most conservative gradient from the historical groundwater elevation data (refer to Appendix D of the Amended FSIR/ROR/RAP)

foc (organic carbon content) 0.0081 g/g Analysis of S-3408; 58% of organic matter [ASTM-D2974]

VOC Exceeding the Tier 1 SROs or GROs

for Class I Groundwater

Maximum Residual Concentration or Elevated

Detection Limit in Soil (mg/kg)

Predicted Groundwater Concentration

Corresponding to Maximum Concentration

or Elevated Detection Limit in Soil

(mg/L)

Maximum Concentration or Elevated Detection Limit in Groundwater

(mg/L)

Distance to Achieve the Class I GRO

1,1,2,2-tetrachloroethane <4.45 CB-104-2 (10-12.5’) 0.23 <0.10 MW1000 (2010) 11.51 feet

1,1,2-trichloroethane <4.45 CB-104-2 (10-12.5’) 0.37 <0.10 MW1000 (2010) 91.04 feet1,1-dichloroethene <4.45 CB-104-2 (10-12.5’) 0.32 <0.10 MW1000 (2010) 17.24 feet

1,2-dichloroethane <4.45 CB-104-2 (10-12.5’) 0.61 <0.10 MW1000 (2010) 59.34 feet

1,2-dichloropropane <4.45 CB-104-2 (10-12.5’) 0.36 <0.10 MW1000 (2010) 226.05 feet

2-butanone <44.5 CB-104-2 (10-12.5’) 10.28 <0.50 MW1000 (2010) 1 foot2-hexanone(1) <111 CB-104-2 (10-12.5’) 17.25 <1.25(1) MW-6019 (2020) 353.85 feet(1)

Acetone <111 CB-104-2 (10-12.5’) 26.88 <1.25 MW-6019 (2020) 1 foot


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Notes: (1) 2-hexanone will be evaluated using the maximum elevated detection limit in groundwater; refer to Section 3.4.1 (2) the detected concentration exceeds the predicted concentration, and was used to calculate the migration distance

The maximum predicted extent of contamination (388.25 feet) has been modeled in the measured directions of groundwater flow (ranging from 65.27º to 312º from North); see Figure 10. A summary of the potentially impacted properties is provided in Section 3.4.

3.4.1 Tier 3 Evaluation for 2-Hexanone

The purpose of this section is to request a Tier 3 evaluation with respect to modeling of potential 2-hexanone concentrations. The following is organized to satisfy the Subpart I (Tier 3) requirements of Section 742.925.

• A description of the route evaluated (Section 742.925(a));

This Tier 3 evaluation is related to the soil and groundwater components of Class I groundwater ingestion.

• A description of the site and physical characteristics (Section 742.925(b));

The Remediation Site is roughly rectangular in shape and includes an approximate 23,250-square-foot property historically identified as 7601-7615 Lake Street and an approximate 5,000-square-foot property identified as 7617-7621 Lake Street. The Remediation Site was most recently developed with two, multi-unit commercial buildings (constructed atop concrete slab-on-grade foundations) and associated parking lots. These structures were demolished in late 2019; the site is currently vacant and scheduled for redevelopment with a mixed-use building. The topography of the Remediation Site and immediate adjacent sites is relatively level. The elevation of the Remediation Site is approximately 630 feet above mean sea level, and regional topography slopes to the west/northwest toward the Des Plaines River.

Benzene <2.00 S105 (8-10’) 0.16 <0.10 MW1000 (2010) 74.74 feet

Bromomethane <4.45 CB-104-2 (10-12.5’) 0.73 <0.10 MW1000 (2010) 5.9 feet

Chloroform <4.45 CB-104-2 (10-12.5’) 0.36 <0.10 MW1000 (2010) 362.15 feetcis-1,2-dichloroethylene 117 CB-104-2 (10-12.5’) 10.86 5.63 TT-MW-100 (2016) 299.50 feet

Dibromochloromethane <4.45 CB-104-2 (10-12.5’) 0.29 <0.10 MW1000 (2010) 3.55 feet

Methylene chloride <22.2 CB-104-2 (10-12.5’) 3.54 <0.20 MW1000 (2010) 15.71 feet

Tetrachloroethylene (PCE) 940 B3003 (6-9’) 8.74 24(2) MW1000 (2010) 215.35 feettrans-1,2-dichloroethylene <4.45 CB-104-2 (10-12.5’) 0.35 0.101 TT-MW-100 (2016) 66.85 feet

Trichloroethylene 226 CB-104-2 (10-12.5’) 10.81 1.41 TT-MW-100 (2016) 354.8 feet

Vinyl chloride 7.20 B6019 (10-12.5’) 0.85 0.948(2) TT-MW-100 (2016) 388.25 feet

VOC Exceeding the Tier 1 SROs or GROs

for Class I Groundwater

Maximum Residual Concentration or Elevated

Detection Limit in Soil (mg/kg)

Predicted Groundwater Concentration

Corresponding to Maximum Concentration

or Elevated Detection Limit in Soil

(mg/L)

Maximum Concentration or Elevated Detection Limit in Groundwater

(mg/L)

Distance to Achieve the Class I GRO


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Subsurface materials encountered at the site consist of sand and gravel fill that extended from approximately 0.5 to 2 feet BSG, followed by units of black or brown medium stiff clay/silty clay with discontinuous sand or gravel lenses, underlain by gray clay/silty clay that exhibited a stiff to hard consistency and extended to the maximum boring termination depth of recent soil borings (35 feet).

Groundwater levels in the monitoring wells installed at the Remediation Site have ranged from approximately 8 to 14 feet BSG, and previously recorded groundwater elevation data yielded hydraulic gradients ranging from 0.02078 to 0.04942 ft/ft, with a general northerly direction of groundwater flow. Prior slug testing of MW1800, which is screened from approximately 5.5 to 15.5 feet BSG, yielded a value of 7.16 x 10-7 cm/s. Recent slug testing of MW-104-30, which is screened from 25 to 30 feet BSG, yielded a value of 5.32 x 10-5 cm/s. Despite the slug test results, given the presence of discontinuous sand/gravel lenses of at least 5 feet in thickness, a Class I General Resource Groundwater classification shall be used for the Remediation Site.

• A discussion of the result and possibility of the route becoming active in the future (Section 742.925(c));

Two hundred and thirty one soil and 33 groundwater samples collected from the Remediation Site have been analyzed for VOCs, and 2-hexanone was only identified above laboratory method detection limits in two soil samples: B1300 (8-10), at a concentration of 0.0049 mg/kg (collected in 2004); and B4100 (22.5-25), at a concentration of 3.8 mg/kg (collected in 2010).

Note that 2-hexanone was not identified above a laboratory detection limit in any groundwater samples, and as outlined in the following table, the majority of the detection limits were below the non-TACO Tier 1 GRO for Class I groundwater. Note also that MW1300 was installed at B1300, and MW1600 is located down-gradient of B4100.

Table 3-9 Groundwater Sample Analytical Results for 2-Hexanone

Note:bold text indicates the concentration exceeds the non-TACO Tier 1 GRO for Class I groundwater (0.035 mg/L)

Groundwater Sample ID Reported Detection Limits for 2-HexanoneMW600 <0.00015 mg/L (2001); <0.0050 mg/L (2009 & 2010)MW900 <0.00015 mg/L (2001); <0.0050 mg/L (2009 & 2010); <0.0250 mg/L (2019)MW1000 <0.00015 mg/L (2001); <0.050 mg/L (2009); <0.50 mg/L (2010); <0.010 mg/L (2016)MW1300 <0.0050 mg/L (2009 & 2010); <0.010 mg/L (2016); <0.0250 mg/L (2019) MW1600 <0.010 mg/L (2005); <0.0050 mg/L (2009 & 2010); <0.0250 mg/L (2019)MW1800 <0.010 mg/L (2005); <0.0050 mg/L (2009 & 2010); <0.010 mg/L (2016); <0.0250 mg/L (2019)TT-MW-100 <0.010 mg/L (2016)TT-MW-101 <0.010 mg/L (2016)TT-MW-102 <0.010 mg/L (2016)TT-MW-104 <0.010 mg/L (2016)TT-MW-108 <0.010 mg/L (2016)TT-MW-111 <0.020 mg/L (2016)MW-104-30’ <0.0250 mg/L (2020)MW-6019 <1.25 mg/L (2020)MW-6027 <0.0250 mg/L (2020)


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Based on the cumulative groundwater testing results, Pioneer believes that the predicted concentration of 2-hexanone in groundwater yielded by the SSL S18 calculation (17.25 mg/L; see Spreadsheet 3 in Appendix E), which corresponds to the maximum elevated detection limit in a soil sample (111 mg/kg), significantly overestimates the potential impact to groundwater at the Remediation Site.

Furthermore, there is presently no published first order degradation constant for 2-hexanone; thus, according to Equation R26, the distance to achieve the Tier 1 GRO for the maximum predicted 2-hexanone concentration in groundwater (17.25 mg/L) is 3,049 feet (see Spreadsheet 4 in Appendix E). Given the cumulative groundwater testing results, Pioneer believes the R26 modeling significantly overestimates the potential extent of migration.

All properties within this maximum calculated extent of migration are within the Village of River Forest, the Village of Forest Park and the City of Chicago, all of which maintain Illinois EPA-approved ordinances prohibiting the use of groundwater. Therefore, the possibility of the groundwater ingestion exposure route becoming active in the future is considered low.

• Technical support that may include, but is not limited to, the following: a discussion of the natural or man-made barriers to that exposure route (Section 742.925(d)(1));

The Remediation Site has historically been and will remain connected to the municipal water supply.

The entire Remediation Site will be capped with concrete, which will prevent potential future exposure and infiltration of rainwater.

As mentioned, all properties within the maximum calculated extent of migration are within the Village of River Forest, the Village of Forest Park and the City of Chicago, all of which maintain Illinois EPA-approved ordinances prohibiting the use of groundwater.

• calculations and modeling (Section 742.925(d)(2));

Refer to Table 3-8 above, and Spreadsheets 3 and 4 in Appendix E.

• physical and chemical properties of contaminants of concern; and contaminant migration properties (Section 742.925(d)(3) and (4));

According to the Hazardous Substance Data Bank, 2-hexanone (a.k.a., methyl n-butyl ketone [MnBK]) is a clear, colorless ketonic solvent, historically used in materials such as paint, lacquers, ink and paint thinners. It is also a waste product of certain industrial activities, including wood pulp manufacturing, and manufactured gas and oil shale operations.

The molecular weight of 2-hexanone is 100.16, it has a melting point of -55.5ºC, a boiling point of 127.6ºC, and a flashpoint of 23ºC. It easily dissolves in water (with a water solubility of 1.64E-04 mg/L at 20ºC), and is less dense than water (with a relative density of 0.8).


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According to the USEPA Integrated Risk Information System (IRIS), 2-hexanone has a reference dose for oral exposure of 5.0E-03 mg/kg-day, and a reference concentration for inhalation exposure or 3.0E-02 mg/m3; an oral slope factor and unit risk factor are not available.

According to the chemical-specific parameters listed on the USEPA’s Regional Screening Level website, 2-hexanone has a unitless Henry’s Law constant of 3.8E-03; a diffusivity in air value of 7.0E-02 cm2/s, and a diffusivity in water value of 8.4E-06 cm2/s. At present, there is no published first order degradation constant for 2-hexanone.

Based on the above information, Pioneer requests that the Illinois EPA approve modeling of 2-hexanone using the maximum elevated detection limit in groundwater in place of the maximum predicted groundwater concentration corresponding to the maximum elevated detection limit in soil.

3.5 Summary

Given the cumulative analytical testing results, residual VOCs at the Remediation Site may be managed in place through the calculation of Tier 2 remediation objectives, and exclusion of the affected exposure routes using the following:

- installation and maintenance of concrete engineered barriers on portions of the site;

- notifying construction workers of site conditions in advance of intrusive construction activities;

- installation of a vapor mitigation system for portions of the proposed on-site structure; and

- reliance upon a local ordinance to prohibit the use of groundwater at the Remediation Site and potentially-affected properties.


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4.0 REMEDIAL ACTION PLAN ADDENDUM

4.1 Introduction

In-situ remediation has been performed to achieve the site-specific soil saturation limit for PCE. Residual VOCs remain at concentrations exceeding the Tier 1 or Tier 2 objectives, and will be addressed through exclusion of the affected exposure routes. The following table outlines the exposure routes where VOCs remain at concentrations exceeding the applicable Tier 1 or Tier 2 remediation objectives.

Table 4-1 Affected Exposure Routes

Notes: -- indicates no residual VOCs exceed the applicable remediation objectives √ indicates an affected exposure route (residual VOCs exceed the applicable remediation objectives)

This RAP Addendum has been prepared to describe the proposed remedy for addressing residual VOC concentrations.

4.2 Current & Post-Remediation Land Uses

The Remediation Site is currently vacant land, and is expected to be developed with a mixed-use building that will include parking and retail units on the ground floor, and residential units above.

4.3 Remedial Technology Selection

4.3.1 Active Remediation & Post-Remedial Monitoring

Based on the plan to address residual VOCs through pathway exclusion, no additional active remediation is required for the Remediation Site. Also, no post-remedial monitoring is proposed for the Remediation Site.

Applicable Exposure Route VOCs Exceed the Applicable Objectives

Soil Ingestion: Residential √

Construction Worker --

Outdoor Inhalation: Residential √

Construction Worker √

Indoor Inhalation: Residential √

Soil Component of Class I Groundwater Ingestion √

Class I Groundwater Ingestion √

Soil Saturation Limit --


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4.3.2 Engineering Controls

Engineered barriers are required to address the soil ingestion and outdoor inhalation exposure routes; the boundaries of the area requiring installation and maintenance of engineered barriers are shown on Figure 11.

It is proposed that the following conventional components serve as engineered barriers at the Remediation Site.

• Concrete Barriers:

- portions of the proposed floor slab;

- portions of proposed sidewalks; and

- portions of proposed patios.

A general depiction of the site redevelopment plan is provided on Figure 11. Upon installation of all required engineered barriers, the soil ingestion and outdoor inhalation exposure routes for residential populations will be eliminated at the Remediation Site.

4.3.3 Preventative Controls

As required by 742.1100(d), if intrusive construction work is performed at the Remediation Site, construction workers will be notified of site conditions in advance of performing intrusive activities. Specifically, construction workers will be provided with a Hazard Communication Program that outlines contaminants known to be present above the Tier 1 objectives for the construction worker exposure routes, and an appropriate health and safety plan will be developed for the proposed activities. The construction worker notification shall apply to the portion of the Remediation Site shown on Figure 7.

4.3.4 Building Control Technology

The following demonstrates that the requirements of Title 35 of the Illinois Administrative Code Part 742, Sections 742.1205 (BCT Proposals) and 742.1210 (BCT Requirements) will be met for the Remediation Site.

4.3.4.1 Building Control Technology Proposals

• A description of the site and physical site characteristics (Section 742.1205(a));

The Remediation Site is roughly rectangular in shape and includes an approximate 23,250-square-foot property historically identified as 7601-7615 Lake Street and an approximate 5,000-square-foot property identified as 7617-7621 Lake Street. The Remediation Site was most recently developed with two, multi-unit commercial buildings (constructed atop concrete slab-on-grade foundations) and associated parking lots. These structures were demolished in late 2019, and the site is scheduled for redevelopment with a mixed-use structure.


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The topography of the Remediation Site and immediate adjacent sites is relatively level. The elevation of the Remediation Site is approximately 630 feet above mean sea level, and regional topography slopes to the west/northwest toward the Des Plaines River.

• The current extent and modeled migration of contamination (Section 742.1205(b));

Contaminants have been identified throughout the Remediation Site, with the highest concentrations historically identified within the former dry cleaning facility and commercial units located east of the dry cleaning facility. More recently, the highest concentrations were identified on the east-central portion of the site.

Contamination associated with the Remediation Site was previously identified on a property to the southwest of the former dry cleaning facility (423 Ashland Avenue, which was issued an NFR letter in 2015). Also, the maximum predicted extent of migration extends beyond the Remediation Site boundaries, with a maximum distance to achieve the Tier 1 GROs for Class I groundwater equal to 388.25 feet (associated with the concentration of vinyl chloride detected in TT-MW-100).

Groundwater elevation data from 2001, 2004, 2005, 2009 and 2010 have shown northerly directions of groundwater flow. Also note that with the exception of a relatively low-level concentration of PCE in MW900, no VOC impacts have been identified in monitoring wells installed near/along the southern property boundary (including MW1800, TT-MW-104, TT-MW-108 and MW-104-30).

• Geology, including soil types and parameters (Section 742.1205(c));

Soils encountered during subsurface investigation activities at the Remediation Site consisted of sand and gravel fill that extended from approximately 0.5 to 2 feet BSG, followed by units of black or brown medium stiff clay/silty clay with discontinuous sand or gravel lenses, underlain by gray clay/silty clay that exhibited a stiff to hard consistency and extended to the maximum boring termination depth of recent soil borings (35 feet).

As shown in Appendix B of the previously submitted Amended FSIR/ROR/RAP), ISGS maps indicate the Remediation Site is located in an area predominated by silty or clayey glacial till, with units of shallow sand present above the silty/clayey till in areas east/southeast of the Remediation Site.

Based on an interpretation of the general topography of the Remediation Site and surrounding area, regional groundwater is expected to flow in a northwesterly direction toward the Des Plaines River, the nearest point of which is located approximately 3,575 feet southwest of the Remediation Site.

As discussed in Section 1.7.1 of the Amended FSIR/ROR/RAP, historical groundwater elevation data was evaluated for all previously installed monitoring wells excluding MW1600 (which was screened at a deeper depth than the remaining wells) utilizing an online hydraulic gradient


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calculator provided by the US EPA. The groundwater elevation data yielded hydraulic gradients ranging from 0.02078 to 0.04942 ft/ft, with a general northerly direction of groundwater flow (refer to Section 1.7.1 and Appendix D of the Amended FSIR/ROR/RAP).

As noted in Section 1.2.1 herein, prior hydraulic conductivity testing conducted by another consultant on October 6, 2005 yielded a value of 7.16 x 10-7 cm/s for MW1800, which is screened from approximately 5.5 to 15.5 feet BSG, and recent hydraulic conductivity testing of MW-104-30, which is screened from approximately 25 to 30 feet BSG, yielded a value of 5.32 x 10-5 cm/s.

• Results and locations of sampling events (Section 742.1205(d));

Soil, groundwater and soil gas testing activities have been performed throughout the Remediation Site. The cumulative analytical results identified several VOCs at concentrations exceeding the applicable Tier 1 or Tier 2 remediation objectives. The nature and extent of subsurface impacts was generally characterized. No evidence of free product was identified at the Remediation Site; however, select PCE concentrations exceeded the site-specific soil saturation limit, and were remediated using ISCO (refer to Section 2.0 herein). Residual PCE concentrations are below the site-specific soil saturation limit, and no residual total VOC concentrations exceed the default soil attenuation capacity values.

The affected exposure routes at the Remediation Site include the soil ingestion exposure route for residential property, the outdoor inhalation exposure routes for residential property and construction worker populations, the soil and groundwater components of the Class I groundwater ingestion exposure route, and the residential indoor inhalation exposure route. The residual VOC concentrations will be addressed through exclusion of the affected exposure routes.

• Scaled map of the area, including all buildings and man-made pathways (Section 742.1205(e));

See the “Figures” section of the appendices.

• A description of building characteristics and methods of construction, including a description of man-made pathways (Section 742.1205(f));

The Remediation Site will be redeveloped with a partial 6-story, mixed-use, concrete-slab-on-grade building. The ground floor will include retail space, a public parking garage, and a ramp to the second-floor private parking garage. The second floor will include a private parking garage and residential units, and the third through sixth floors contain residential units.

Note that the proposed building will include four elevator pits, and each pit will include a sump; however, the elevator pit sumps will consist of cast-in-place concrete boxes designed to collect water that may leak into the elevator shaft from above. The elevator pit sumps will not be


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connected to any underground piping or be open to the subsurface; thus, these sumps do not represent potential man-made pathways for vapor intrusion.

• Present and post-remediation uses of the land that are at issue due to the area of contamination, including human receptors at risk (Section 742.1205(g));

At present, the Remediation Site is vacant. Upon redevelopment, the site will be used for retail and residential purposes.

4.3.4.2 Building Control Technology Requirements

• Natural attenuation, access controls, and point of use treatment shall not be considered building control technologies (Section 742.1210(a));

Natural attenuation, access controls and point of use are not proposed for the Remediation Site.

• For purposes of determining compliance with remediation objectives under Tier 1, building control technologies are not recognized (Section 742.1210(b));

A vapor mitigation system is proposed to achieve exclusion of the indoor inhalation exposure route, not to determine compliance with Tier 1 remediation objectives.

• The following building control technologies are recognized for purposes of pathway exclusion under Section 742.312 (Section 742.1210(c));

- Sub-slab depressurization (SSD) systems meeting the following requirements (Section 742.1210(c)(1)):

A) A suction pit is installed that is at least two cubic feet and extends at least 6 inches below the slab (larger suction pits may be excavated as needed to achieve the performance criteria in subsection (c)(1)(B));

A vapor mitigation system may consist of either vertical piping positioned in a suction pit or perforated piping installed below a floor slab. Note that the suction pit requirement of 35 IAC 742.1210(c)(1)(A) is based on ASTM E2121: Standard Practice for Installing Radon Mitigation Systems in Existing Low Rise Residential Buildings, which applies to existing construction.

The corresponding standard for new construction is ASTM E1465: Standard Practice for Radon Control Options for the Design and Construction of New Low-Rise Residential Buildings. For new construction, a drainage layer and sub-slab piping is used in place of a suction pit(s). Therefore, the vapor mitigation system proposed for the Remediation Site will be constructed using sub-slab drainage layers (CA-7 washed stone with no fines) and perforated suction piping installed beneath the affected portions of the ground-level floor slab.


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B) A PVC pipe of at least 3 inches in diameter extends from the suction pit to the intake side of an in-line fan capable of achieving a static vacuum of at least 0.25 inches water column (wc) at the suction point and measurable vacuum at the farthest edges of the area served by the suction pit under worst case conditions (all exhaust fans and heating systems running, during cold weather) as determined by a differential pressure reading of at least -0.003 inches wc below the slab or visible downward flow of air at test holes using chemical or smoke sticks;

Sub-slab piping for the proposed vapor mitigation system will be 4-inch nominal inside diameter, and above-slab piping connected to the intake side of an in-line fan will have a minimum 4-inch nominal inside diameter. Differential pressure gauges with a range from 0 to 3 inches of water column, and differential pressure alarms set to activate at 0.25 inches of water column will be installed.

A vapor mitigation contractor will be contracted to perform post-installation commissioning of the SSD systems. The testing will include testing the sub-slab vacuum during initial fan startup, balancing the system for optimal operation, and providing a commissioning and operations and maintenance report.

C) All visible cracks and joints in the slab (including the place where the pipe exits the slab) and foundation walls are sealed;

A vapor barrier will be installed over the sub-slab aggregate layer and sub-slab piping, and will be sealed air tight to the concrete foundation/footings. The vapor barrier proposed for the Remediation Site is Stego Wrap 15-mil Class A Vapor Barrier, which is a multi-layer, plastic extrusion manufactured with virgin polyolefin resins and is acceptable for use in systems designed to control soil gases. The Stego Wrap vapor barrier will have a minimum 6-inch overlap at all seams, and all seams and penetrations will be sealed using suitable tape or mastic.

D) The pipe exhausts outside the building at least 10 feet above ground and at least 10 feet from any door or window;

The exhaust discharge locations will be at least 10 feet above ground level and at least 10 feet from any door or window. Additionally, the discharge locations shall be 5 feet above, or if not 4 feet above and 20 feet horizontally from any openings to the building or air intake.

E) Additional suction pits meeting the requirements of subsection (c)(1)(A) shall be installed as necessary to achieve measurable vacuum below the slab in all areas, including in any area where subsurface or foundation conditions (e.g., a sub-slab grade beam) prevent adequate suction field extension.

The vapor mitigation system will be installed as necessary to achieve measurable vacuum below the affected portion of the building slab, including any areas where subsurface or foundation conditions prevent adequate suction field extension.


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4.3.5 Institutional Controls

Formal exclusion of the affected exposure routes will require the following institutional controls.

1) The eventual focused NFR letter to be issued for the Remediation Site shall serve as an institutional control regarding:

• maintenance of engineered barriers and a vapor mitigation system;

• construction worker notification; and

• a requirement that any future on-site structures be constructed atop full concrete slab-on-grade foundations, or basements with poured concrete walls and floor with no sumps.

2) The groundwater ingestion exposure route at the Remediation Site and potentially-affected off-site property will be eliminated by using Village or River Forest ordinance number 2814 as an institutional control in accordance with 35 IAC 742.1015. As required by 742.1015(b), a request for approval of a local ordinance as an institutional control shall provide the following:

• A copy of the ordinance restricting groundwater use (Section 742.1015(b)(1));

An uncertified copy of the ordinance is provided in Appendix F herein; a certified copy of the ordinance will be provided in the eventual Remedial Action Completion Report.

• A scaled map(s) delineating the area and extent of groundwater contamination modeled above the applicable remediation objectives (Section 742.1015(b)(2));

See the attached Figure 10.

• A scaled map delineating the boundaries of all properties under which groundwater is located which exceeds the applicable groundwater remediation objectives (Section 742.1015(b)(3));

See the attached Figure 10.

• Information identifying the current owner(s) of each property identified in subsection (b)(3) of this Section (Section 742.1015(b)(4)); and

The owners of the Remediation Site and potentially-affected off-site properties are outlined below.

Table 3-2 Owner of the Potentially Impacted Off-Site Property Site Address PIN Property Owner (Mailing Address)

Lake Street, Lathrop Avenue, public alleyway Not applicable

Village of River Forest 400 Park Avenue River Forest, IL 60305


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518 Ashland Avenue 15-12-110-040Jon B. Ver Halen Trust 518 Ashland Avenue River Forest, IL 60305

514 Ashland Avenue 15-12-110-041Stephen Glinke & Ellen Hamilton 514 Ashland Avenue River Forest, IL 60305

510 Ashland Avenue 15-12-110-042Arvind Rajagopal & Sara Jandeska 510 Ashland Avenue River Forest, IL 60305

506 Ashland Avenue 15-12-110-043Laurie Epstein Lawton 2016 Declaration of Trust 506 Ashland Avenue River Forest, IL 60305

500 Ashland Avenue 15-12-110-044Daniel Conidi 500 Ashland Avenue River Forest, IL 60305

501 & 533 Ashland Avenue 15-12-111-041 15-12-111-045

St. Luke Parish 519 Ashland Avenue River Forest, IL 60305

530 Lathrop Avenue & 515 Ashland Avenue 15-12-111-044

St. Luke Church 528 Lathrop Avenue River Forest, IL 60305

501 Ashland Avenue 15-12-111-045St. Luke Church 528 Lathrop Avenue River Forest, IL 60305

528 Lathrop Avenue & 7600 Lake Street

15-12-111-046 15-12-111-047 15-12-111-048 15-12-111-049


7623-7629 Lake Street 15-12-117-001 (15-12-116-019)

Chicago Title Land Trust Company (Trust Agreement dated October 10, 2007 and known as Trust No. 8002349535) ℅ David King & Associates, Inc. 1011 Lake Street, No. 313 Oak Park, IL 60305

423 Ashland Avenue 15-12-117-003Lake Lathrop Partners LLC 1525 W. Homer, Suite 400 Chicago, IL 60644

419 Ashland Avenue 15-12-117-004Life Insurance Benefits, LLC 604 N. Franklin Avenue River Forest, IL 60305

407-411 Ashland Avenue 15-12-117-016

Chatterton Condominium of River Forest Board of Owners ℅ Monroe Property Management Co. P.O. Box 6721 River Forest, IL 60305

523 Lathrop Avenue 15-12-212-008Steven Wierdak, Ann Hinrichs 523 Lathrop Avenue River Forest, IL 60305

519 Lathrop Avenue 15-12-212-009Robert and Patricia Nugent 519 Lathrop Avenue River Forest, IL 60305

515 Lathrop Avenue 15-12-212-010Maureen O’Brien 515 Lathrop Avenue River Forest, IL 60305

511 Lathrop Avenue 15-12-212-011Justin and Marie Distefano 511 Lathrop Avenue River Forest, IL 60305

Site Address PIN Property Owner (Mailing Address)


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• A copy of the proposed written notification to the unit of local government that adopted the ordinance and to the current owners identified in subsection (b)(4) (Section 742.1015(b)(5)).

In order to satisfy 35 IAC 742.1015(c), proof of notification will be provided to the Illinois EPA within 45 days from the date the NFR letter is recorded for the Remediation Site (note that current ownership will be verified at the time the Remedial Action Completion Report is prepared). Copies of the draft notification letters are provided in Appendix F.

4.4 Other Conditions

Soil or groundwater removed from a known impacted area must be managed in accordance with applicable regulations. This typically requires the material to be returned to its original location or to be managed in accordance with applicable solid waste regulations.

4.5 Conclusions

The results of the subsurface investigation and endangerment assessment conducted in accordance with the procedures of the TACO regulations have demonstrated that residual VOCs exceeding the applicable Tier 1 or Tier 2 remediation objectives can be managed in-place through the installation of engineered barriers and a vapor mitigation system, and reliance upon preventive and institutional controls.

507 Lathrop Avenue 15-12-212-012Melissa and Carl Bergetz 507 Lathrop Avenue River Forest, IL 60305

735 Jackson Avenue 15-12-212-013River Forest Park District 401 Thatcher Avenue River Forest, IL 60305

510 Jackson Avenue 15-12-212-019Erik and Kendra Chiprich 510 Jackson Avenue River Forest, IL 60305

504 Jackson Avenue 15-12-212-020Mary Grayson 504 Jackson Avenue River Forest, IL 60305

7579 Lake Street 15-12-219-001Craig Tomera 7579 Lake Street River Forest, IL 60305

7577 Lake Street 15-12-219-002

State Bank of Countryside as Trustee Under Trust Agreement Dated December 15, 1995 and Known as Trust No. 95-1642 6734 Joliet Road Countryside, IL 60525

7575 Lake Street 15-12-219-037 (-1001 through -1019)

Centennial House Condominium Board of Owners 7575 Lake Street, #2A River Forest, IL 60305

7525 Lake Street 15-12-219-038

ASP Realty, LLC ℅ Albertson’s LLC 250 Parkcenter Blvd. Boise, ID 83706



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Upon completion of the installation of required engineered barriers and the vapor mitigation system, a Remedial Action Completion Report will be submitted to the Illinois EPA to request a focused NFR Letter. The eventual focused NFR Letter is expected to contain the following conditions:

• The Remediation Site may be used for residential or industrial/commercial purposes.

• Concrete engineered barriers must be maintained on a portion of the site to address the soil ingestion and outdoor inhalation exposure routes.

• A vapor mitigation system must be maintained in a portion of the proposed on-site structure to address the indoor inhalation exposure route.

• In accordance with local ordinance number 2814, groundwater at the Remediation Site and properties within the modeled extent of migration shall not be used for potable purposes.

• Any future on-site structures shall be constructed atop full concrete slab-on-grade foundations, or basements with poured concrete walls and floor with no open sumps.

• Any contaminated soil or groundwater that is removed, excavated or disturbed from the Remediation Site must be handled in accordance with applicable laws and regulations.

• The NFR Letter shall be recorded as a permanent part of the chain of title for the Remediation Site and serve as an appropriate institutional control.


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5.0 CLOSING REMARKS

This report has been prepared for the use of the Remediation Applicant, the property owner, and for evaluation by the Illinois Environmental Protection Agency, and can not be relied upon by other persons or entities without the permission of Pioneer Engineering & Environmental Services, LLC (Pioneer). The observations and conclusions contained herein are limited by the scope and intent of the work mutually agreed upon by the client and Pioneer and the work actually performed. There are no warranties, implied or expressed, concerning the environmental integrity of areas and/or mediums not analytically tested.


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6.0 REFERENCES

American Society for Testing and Materials. 1984. “Standard Guide for Sampling Groundwater Monitoring Wells” (ASTM D4448). Reprinted from Annual Book of ASTM Standards, Vol. 04.08.

American Society for Testing and Materials. 1998. “Standard Guide for Direct Push Soil Sampling for Environmental Site Characterization” (ASTM D6282). Reprinted from Annual Book of ASTM Standards, Vol. 04.09.

Berg, Richard C. et al. 1984. Potential for Contamination of Shallow Aquifers in Illinois. Illinois State Geological Survey Circular 532.

Illinois Pollution Control Board. 2006. Site Remediation Program. Title 35 Illinois Administrative Code Part 740.

Illinois Pollution Control Board. 2013. Tiered Approach to Corrective Action Objectives. Title 35 Illinois Administrative Code Part 742.

Michigan Department of Environmental Quality, Remediation Division. May 2012. “Guidance Document for the Vapor Intrusion Pathway.”

Pioneer Engineering & Environmental Services, LLC. January 15, 2020. Amended Focused Site Investigation Report/Remediation Objectives Report/Remedial Action Plan.

Pioneer Engineering & Environmental Services, LLC. April 17, 2020. Responses to Illinois EPA Comments.

The Interstate Technology & Regulatory Council, January 2007. “Vapor Intrusion Pathways: A Practical Guideline.”

United States Environmental Protection Agency. 1993. “Radon Reduction Techniques for Existing Detached Houses: Technical Guidance (Third Edition) for Active Soil Depressurization Systems” (EPA Publication No. EPA/625/R-93/011.

United States Environmental Protection Agency. March 1994. “Model Standards and Techniques for Control of Radon in New Residential Buildings” (EPA Publication No. EPA/402/R-94/009.

United States Environmental Protection Agency. April 2001. “Building Radon Out: A Step-by-Step Guide On How To Build Radon-Resistant Homes” (EPA Publication No. EPA/402-K-01-002.


450312615005 -- Cook County


FIGURES

Figure 1 Pre-Remediation Sampling Locations

Figure 2 In-Situ Treatment Zone & Injection Point Locations

Figure 3 In-Situ Treatment Confirmation Sampling Locations

Figure 4 Results Summary - Residential Soil Ingestion

Figure 5 Results Summary - Residential Outdoor Inhalation

Figure 6 Results Summary - Construction Worker Soil Ingestion

Figure 7 Results Summary - Construction Worker Inhalation

Figure 8 Results Summary - Residential Indoor Inhalation

Figure 9 Results Summary - Soil & Groundwater Components of Class I Groundwater

Figure 10 Maximum Predicted Extent of Migration

Figure 11 Proposed Engineered Barrier Boundaries

Figure 12 Proposed Building Control Technology Boundaries

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B

oring Location(TetraTech 2016)

Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W

ell/Location 1998 - 2010

Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

#7601

B-6015

B4900B500

B-6009

#7617#7619

#7621

B-6028

Proposed Elevator Pit

TT-110

B-6007TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’Location W

here PCE Exceeds the Site-Specific Csat

Estimated Extent of

Csat Impacts

B6001PC

[email protected]'

B6002PC

[email protected]’

PCE=0.113@

5-7.5'PC

E=4,[email protected]’

VOC

s<[email protected]'

B6003PC


B6004PC


B6005PC


PCE=5.15@

5-7.5’

B6006PC


B6007PC


B6008PC


VOC

s<[email protected]’

B6009PC


VOC


B6010PC


PCE=3.46@

5-7.5’

B6011PC


VOC


B6012PC


VOC


B6013PC


VOC


B6014PC


VOC


B6015PC


B6016PC


PCE=0.0523@

12.5-15’PC

E<[email protected]’

B6017PC


PCE=0.110@

12.5-15’

B6018PC


PCE=0.0551@

2.5-5’PC


PCE=29.7@

10-12.5’PC


B6019PC

E=<[email protected]’

PCE<0.0850@

12.5-15’

B6020PC


PCE=1,330@

10-12.5’PC


TT-100 PC

E=2.51@6-8’

PCE=2.49@

10-12’PC

E=239@16-18’

TT-101 PC

E=0.182@6-8’

PCE=195@

12-14’PC

E=226@20-22’

TT-102 PC

E=2.94@0-2’

PCE=10.9@

6-8’ PC

E=14.4@10-12’

VOC

s<T1@12-14’

TT-103PC

E=5.03@0-2’

PCE= 1.23@

4-6’

TT-104 PC

E=0.12@0-2’

PCE=0.671@

6-8’ PC

E<0.23@14-16’

TT-105 VC

=0.0114@0-2’

PCE=52.1@

6-8’

TT-107PC

E=21.3@2-4’

PCE= 2.39@

6-8’

TT-108 VO

Cs<T1@

0-2’PC

E=0.002@6-8’

VOC

s<T1@12-14’

TT-109 VO

Cs<T1@

0-2’PC

E=0.0053@6-8’

TT-110 VO

Cs<T1@

0-2’PC

E=0.0751@6-8’

VOC

s<T1@16-18’

TT-111 PC

E=0.0067@0-2’

PCE=121@

6-8’ VO

Cs<T1@

14-16’

TT-112PC

E=0.0325@0-2’

PCE=6.0@

6-8’

TT-113 PC

E=0.905@0-2’

PCE=1.7@

4-6’ VO

Cs<T1@

10-12’

TT-114 PC

E=3.66@0-2’

PCE=2.83@

4-6’ PC

E=0.0158@10-12’

TT-115 PC

E=0.0605@2-4’

PCE=20.5@

6-8’ PC

E=224@8-10’

PCE=2.63@

10-12’

TT-116 PC

E=3.5@0-2’

PCE=16.4@

6-8’ and VO

Cs<T1@

10-12’

TT-117 PC

E=15.3@0-2’

PCE=31.7@

6-8’VO

Cs<T1@

10-12’

B6021PC

E=1,[email protected]’

B6022PC

[email protected]'

B6023PC


B6024PC


PCE=1.86@

2.5-5’PC


B6025PC


PCE=0.758@

2.5-5’PC

[email protected]'

B6026PC


PCE=0.0317@

2.5-5’PC

[email protected]'

B6027PC

E=0.609@0-3’

PCE<0.00170@

12.5-15'

B6028PC

E=0.453@0-3’

PCE<0.00145@

12.5-15'

B6029PC


B6030PC


B6031PC


B6026 = Boring ID

PCE = tetrachloroethylene

0.0752 = Concentration in mg/kg

@0-2.5’ = sam

ple interval

B-6010

B-6005

B-3600B-2100

Approximate storm

sewer line

Soil Boring Location(Pioneer 2019, 2020)

B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

B-6012

August 2020

B-6017

B-6016

B4200

B4500

Pre-Remediation Sam

pling Locations

7601-7621 Lake StreetRiver Forest, IL

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

#7601

B-6015

B4900B500

B-6009

#7617#7619

#7621

B-6028


TT-110

B-6007TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW



Estimated Extent of

Csat Impacts

B6026 = Boring ID



@0-2.5’ = sam

ple interval

B-6010

B-6005

B-3600B-2100

Approximate storm

sewer line


B-3300B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

B-6012

August 2020

B-6017

B-6016

B4200

B4500

Treatment Zone & Injection

Point Locations7601-7621 Lake Street

River Forest, IL

Approximate lateral

extent of treatment zone

Approximate Location of

RemOx L Injection Point

FIGURE 2

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

#7601

B-6015

B4900B500

B-6009

#7617#7619

#7621

B-6028


TT-110

B-6007TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW



B6026 = Boring ID



@0-2.5’ = sam

ple interval

B-6010

B-6005

B-3600B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

B-6012

December 2020

B-6017

B-6016

B4200

B4500

In-Situ Treatment Conf.

Sampling Locations


Approximate lateral

extent of in-situ treatm

ent zone

CB-101CB-102

CB-103CB-104

SG-6

SG-5

SG-3

SG-2

SG-1

SG-4

Soil Gas Sampling Location

(2020)

ISCO Confirmation Soil

Boring Location (2020)

Treatment Zone PCE

Concentrations (mg/kg)

Recent (2019)

Pre-Rem

ediationBorings

Post-R

emediation

Borings

B-6020C

B-1017.5-10’

0.08390.0618

10-12.5’1,330

2.4312.5-15’

1.590.00594

B-6021C

B-1027.5-10’

(not analyzed)0.128

10-12.5’1,080

8.6012.5-15’

(not analyzed)4.05

—C

B-1037.5-10’

—7.93

10-12.5’—

0.83712.5-15’

—0.156

B-6002C

B-104C

B-104-20-2.5’

4.94(not analyzed)

(not analyzed)5-7.5’

0.113(not analyzed)

(not analyzed)7.5-10’

(not analyzed)1.32

(not analyzed)10-12.5’

4,5402,850

72212.5-15’

0.039289.9

0.513

FIGURE 3

CB-104-2

B-6001TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028


TT-110

TT-115B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

VOC > Tier 1 SRO for Residential Soil Ingestion


TCE = trichloroethylene

VC = vinyl chloride

B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Residential Soil Ingestion


CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 4

VOCs < Tier 1 SROs for Residential Soil Ingestion

B2800

Current Remediation Site Boundary

B800

B4500

SG-5

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

Proposed Engineered Barrier for Soil Ingestion

B-3600

B5100

B-6021

B100 (8-10’)PC

E = 100 mg/kg

VC < 2.0 m

g/kg

B200 (6-8’)PC

E = 36 mg/kg

B400 (6-8’)PC

E = 31 mg/kg

B500 (0-2’)PC

E = 360 mg/kg

VC < 2.0 m

g/kg

B600 (0-2’)PC

E = 360 mg/kg

VC < 1.0 m

g/kg

B600 (8-10’)PC

E = 15 mg/kg

B700 (8-10’)PC

E = 16 mg/kg

B800 (6-8’)PC

E = 19 mg/kg

B1000 (8-10’)PC

E = 17 mg/kg

B1100 (6-8’)PC

E = 16 mg/kg

B1200 (8-10’)PC

E = 23 mg/kg

B2100 (6-8’)PC

E = 18 mg/kg

B2200 (6-8’)PC

E = 24 mg/kg

B2500 (0-2’)PC

E = 220 mg/kg

B2600 (2-4’)VC

= 1.1 mg/kg

B2700 (8-10’)PC

E = 50 mg/kg

B2900 (0-3’)PC

E = 100 mg/kg

B3000 (6-9’)PC

E = 940 mg/kg

TCE = 130 m

g/kg

B3100 see B6009

B3200 (8-10’)PC

E = 90 mg/kg

B3200 (16-18’)PC

E = 14 mg/kg

B3300 (10-12’) PC

E = 430 mg/kg

B3300 (16-18’) PC

E = 430 mg/kg

B3800 see B6011

B4200 (2.5-5’) PC

E = 19 mg/kg

B4300 (10-12.5’) PC

E = 830 mg/kg

B4400 (6-9’)PC

E = 85 mg/kg

B4600 (10-12.5’) PC

E = 27 mg/kg

B500

B4700 (10-12.5’) PC

E = 570 mg/kg

B4900 (0-2.5’)PC

E = 550 mg/kg

B5000 (6-9’)PC

E = 56 mg/kg

B5100 (6-9’)PC

E = 30 mg/kg

B5200 (6-9’)PC

E = 18 mg/kg

B5300 (6-9’)PC

E = 130 mg/kg

TT-100 (16-18’)PC

E = 239 mg/kg

VC < 2.0 m

g/kg

TT-101 (12-14’)PC

E = 195 mg/kg

VC < 1.2 m

g/kg

TT-101 (20-22')PC

E = 226 mg/kg

VC < 1.2 m

g/kg

TT-102 (10-12’)PC

E = 14.4 mg/kg

TT-103 (0-2’)VC

= 3.94 mg/kg

TT-105 (6-8’)PC

E = 52.1 mg/kg

TT-107 (2-4’)PC

E = 21.3 mg/kg

VC = 0.823 m

g/kg

TT-111 (6-8’) PC

E = 121 mg/kg

VC < 1.1 m

g/kg

TT-115 (6-8’) PC

E = 20.5 mg/kg

TT-115A (8-10’) PC

E = 224 mg/kg

VC < 2.0 m

g/kg

TT-116 (6-8’)PC

E = 16.4 mg/kg

TT-117 (0-2’) PC

E = 15.3 mg/kg

TT-117 (6-8’)PC

E = 31.7 mg/kg

B6002 (10-12.5’) PC

E = 4,540 mg/kg

TCE = 111 m

g/kg + elevated D

Ls

B6009 (7.5-10’)PC

E = 29.4 mg/kg

VC < 0.488 m

g/kg

B6010 (2.5-5’)PC

E = 18.4 mg/kg

B6011 (7.5-10’)PC

E = 239 mg/kg

VC < 2.2 m

g/kg

B6012 (7.5-10’)PC

E = 354 mg/kg

VC < 1.97 m

g/kg

B6014 (7.5-10’)PC

E = 118 mg/kg

VC < 0.803 m

g/kg

B6015 (7.5-10’)PC

E = 110 mg/kg

VC < 1.06 m

g/kg

B6016 (10-12.5’)PC

E = 187 mg/kg

VC < 4.04 m

g/kg

B6017 (10-12.5’)PC

E = 56.4 mg/kg

VC < 0.614 m

g/kg

B6018 (10-12.5’)PC

E = 29.7 mg/kg

VC = 2.24 m

g/kg

B6019 (10-12.5’)VC

= 7.20 mg/kg

B6020 (10-12.5’) PC

E = 1,330 mg/kg

VC < 4.56 m

g/kg

B6021 (10-12.5’) PC

E = 1,080 mg/kg

VC < 3.59 m

g/kg

B6022 (10-12.5’)PC

E = 115 mg/kg

VC < 4.22 m

g/kg

B6024 (5-7.5’)PC

E = 33.7 mg/kg

B6025 (5-7.5’)PC

E = 38.0 mg/kg

CB104-2 (10-12.5’)

PCE = 722 m

g/kgTC

E = 226 mg/kg

VC < 4.45 m

g/kg

B2300

TT-109

TT-110

B200 B-6007B300

TT-117

B1900

italicized text indicates a sample that

was rem

ediated

Sample location w

as rem

ediated

B6023

B4500

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028


TT-110

B-6007TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

VOC > Tier 1 SRO for Residential Outdoor Inhalation

PCE = tetrachloroethyleneTCE = trichloroethyleneVC = vinyl chloride

B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Residential O

utdoor Inhalation


CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 5

VOCs < Tier 1 SROs or SGROs Residential Outdoor Inhalation

B2800


B800

B4500

SG-5

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

Proposed Engineered Barrier for Residential Outdoor Inhalation - Based on Soil Gas Testing Results

B-3600

B5100

B-6021

B100 (8-10’)PC

E = 100 mg/kg

+ elevated DLs

B200 (6-8’)PC

E = 36 mg/kg

B400 (6-8’)PC

E = 31 mg/kg

B500 (0-2’)PC

E = 360 mg/kg

+ elevated DLs

B600 (0-2’)PC

E = 360 mg/kg

TCE = 8.1 m

g/kg+ elevated D

Ls

B600 (8-10’)PC

E = 15 mg/kg

B700 (8-10’)PC

E = 16 mg/kg

B800 (6-8’)PC

E = 19 mg/kg

B1000 (8-10’)PC

E = 17 mg/kg

B1100 (6-8’)PC

E = 16 mg/kg

B1200 (8-10’)PC

E = 23 mg/kg

B2100 (6-8’)PC

E = 18 mg/kg

B2200 (6-8’)PC

E = 24 mg/kg

B2500 (0-2’)PC

E = 220 mg/kg

TCE = 7.2 m

g/kg+ elevated D

Ls

B2600 (2-4’)VC

= 1.1 mg/kg

B2700 (8-10’)PC

E = 50 mg/kg

B2900 (0-3’)PC

E = 100 mg/kg

B3000 (6-9’)PC

E = 940 mg/kg

TCE = 130 m

g/kg+ elevated D

Ls

B3100 see B6009

B3200 (8-10’)PC

E = 90 mg/kg

B3200 (16-18’)PC

E = 14 mg/kg

B3300 (10-12’) PC

E = 430 mg/kg

TCE = 13 m

g/kg + elevated D

Ls

B3300 (16-18’) PC

E = 430 mg/kg

TCE = 15 m

g/kg +

elevated DLs

B3800 see B6011

B4200 (2.5-5’) PC

E = 19 mg/kg

B4300 (10-12.5’) PC

E = 830 mg/kg

TCE = 26 m

g/kg + elevated D

Ls

B4400 (6-9’)PC

E = 85 mg/kg

B500

B4600 (10-12.5’) PC

E = 27 mg/kg

TCE = 8 m

g/kg

B4700 (10-12.5’) PC

E = 570 mg/kg

TCE = 12 m

g/kg + elevated D

Ls

B4900 (0-2.5’)PC

E = 550 mg/kg

TCE = 25 m

g/kg+ elevated D

Ls

B5000 (6-9’)PC

E = 56 mg/kg

B5100 (6-9’)PC

E = 30 mg/kg

B5200 (6-9’)PC

E = 18 mg/kg

B5300 (6-9’)PC

E = 130 mg/kg

TT-100 (16-18’)PC

E = 239 mg/kg

TCE = 18.7 m

g/kg+ elevated D

Ls

TT-101 (12-14’)PC

E = 195 mg/kg

TCE = 6.16 m

g/kg+ elevated D

Ls

TT-101 (20-22')PC

E = 226 mg/kg

TCE = 10.2 m

g/kg+ elevated D

Ls

TT-102 (10-12’)PC

E = 14.4 mg/kg

TT-103 (0-2’)VC

= 3.94 mg/kg

+ elevated DL

TT-105 (6-8’)PC

E = 52.1 mg/kg

+ elevated DLs

TT-106 (0-2’)VC

< 0.290 mg/kg

TT-107 (2-4’)PC

E = 21.3 mg/kg

TCE = 6.8 m

g/kgVC

= 0.823 mg/kg

TT-111 (6-8’) PC

E = 121 mg/kg

+ elevated DLs

TT-115 (6-8’) PC

E = 20.5 mg/kg

TT-115A (8-10’) PC

E = 224 mg/kg

TCE = 28.9 m

g/kg+ elevated D

Ls

TT-116 (6-8’)PC

E = 16.4 mg/kg

TT-117 (0-2’) PC

E = 15.3 mg/kg

TT-117 (6-8’)PC

E = 31.7 mg/kg

B6002 (10-12.5’) PC

E = 4,540 mg/kg

TCE = 111 m

g/kg + elevated D

Ls

B6009 (7.5-10’)PC

E = 29.4 mg/kg

+ elevated DLs

B6010 (2.5-5’)PC

E = 18.4 mg/kg

B2300

TT-109

TT-110

Sample location w

as rem

ediated


was rem

ediated

B6011 (7.5-10’)PC

E = 239 mg/kg

+ elevated DLs

B6012 (7.5-10’)PC

E = 354 mg/kg

+ elevated DLs

B6014 (7.5-10’)PC

E = 118 mg/kg

+ elevated DLs

B6015 (7.5-10’)PC

E = 110 mg/kg

+ elevated DLs

B6016 (10-12.5’)PC

E = 187 mg/kg

TCE = 8.49 m

g/kg+ elevated D

Ls

B6017 (10-12.5’)PC

E = 56.4 mg/kg

+ elevated DLs

B6018 (10-12.5’)Benzene = 0.872 m

g/kgPC

E = 29.7 mg/kg

TCE = 41.9 m

g/kgVC

= 2.24 mg/kg

B6019 (10-12.5’)Benzene = 0.880 m

g/kgVC

= 7.20 mg/kg

B6020 (10-12.5’) PC

E = 1,330 mg/kg

TCE = 8.16 m

g/kg + elevated D

Ls

B6021 (10-12.5’) PC

E = 1,080 mg/kg

TCE = 10.3 m

g/kg + elevated D

Ls

B6022 (10-12.5’)PC

E = 115 mg/kg

+ elevated DLs

B6024 (5-7.5’)PC

E = 33.7 mg/kg

+ elevated DLs

B6025 (5-7.5’)PC

E = 38.0 mg/kg

+ elevated DLs

CB102 (10-12.5’)

elevated DLs

CB103 (10-12.5’)

VC = 0.317 m

g/kg

CB104-2 (10-12.5’)

PCE = 722 m

g/kgTC

E = 226 mg/kg

+ elevated DLs

TT-117

B1900

VOC > Tier 1 SRO for Outdoor Inhalation; How

ever, the Nearby Soil Gas Results Dem

onstrate Compliance

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028


TT-110

TT-115B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

VOC > Tier 1 SRO for Construction W

orker Soil Ingestion


B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Construction W



CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 6

VOCs < Tier 1 SROs for Construction W


B2800


B800

B4500

SG-5

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

B-3600

B5100

B-6021

B6002 (10-12.5’) PC

E = 4,540 mg/kg

B500

B2300

TT-109

TT-110

B200 B-6007B300

TT-117

B1900


was rem

ediated


orker Soil Ingestion; How

ever, the 2019 soil testing results at B6009 replace the 2009 soil testing results at B3100

B6023

B4500

Sample location w

as rem

ediated

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028


TT-110

TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’


orker Inhalation


B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Construction W

orker Inhalation


CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 7

VOCs < Tier 1 SROs or SGROs Construction W

orker Inhalation

B2800


B800

B4500

SG-5

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

Proposed Construction W

orker Caution Area - Based on Soil Gas Testing Results

B-3600

B5100

B-6021

B500

TT-103 (0-2’)VC

= 3.94 mg/kg

TT-105 (6-8’)PC

E = 52.1 mg/kg

TT-111 (6-8’) PC

E = 121 mg/kg

12-DC

P = 1.47 mg/kg

+ elevated DLs

TT-115A (8-10’) PC

E = 224 mg/kg

TCE = 28.9 m

g/kg+ elevated D

Ls

TT-117 (6-8’)PC

E = 31.7 mg/kg

B6002 (10-12.5’) PC

E = 4,540 mg/kg

TCE = 111 m

g/kg + elevated D

Ls

B6009 (7.5-10’)PC

E = 29.4 mg/kg

B6011 (7.5-10’)PC

E = 239 mg/kg

+ elevated DLs

B6012 (7.5-10’)PC

E = 354 mg/kg

+ elevated DLs

B6014 (7.5-10’)PC

E = 118 mg/kg

+ elevated DLs

B6015 (7.5-10’)PC

E = 110 mg/kg

+ elevated DLs

B6016 (10-12.5’)PC

E = 187 mg/kg

+ elevated DLs

B6017 (10-12.5’)PC

E = 56.4 mg/kg

+ elevated DL

B6018 (10-12.5’)PC

E = 29.7 mg/kg

TCE = 41.9 m

g/kgVC

= 2.24 mg/kg

B6019 (10-12.5’)VC

= 7.20 mg/kg

B6020 (10-12.5’) PC

E = 1,330 mg/kg

+ elevated DLs

B6021 (10-12.5’) PC

E = 1,080 mg/kg

+ elevated DLs

B6022 (10-12.5’)PC

E = 115 mg/kg

+ elevated DLs

B6024 (5-7.5’)PC

E = 33.7 mg/kg

B6025 (5-7.5’)PC

E = 38.0 mg/kg

CB104-2 (10-12.5’)

PCE = 722 m

g/kgTC

E = 226 mg/kg

+ elevated DLs

B2300

TT-109

TT-110

Sample location w

as rem

ediated


was rem

ediated

B100 (8-10’)PC

E = 100 mg/kg

+ elevated DLs

B200 (6-8’)PC

E = 36 mg/kg

B400 (6-8’)PC

E = 31 mg/kg

B500 (0-2’)PC

E = 360 mg/kg

+ elevated DLs

B600 (0-2’)PC

E = 360 mg/kg

+ elevated DLs

B2500 (0-2’)PC

E = 220 mg/kg

+ elevated DL

B2700 (8-10’)PC

E = 50 mg/kg

B2900 (0-3’)PC

E = 100 mg/kg

B3000 (6-9’)PC

E = 940 mg/kg

TCE = 130 m

g/kg+ elevated D

Ls

B3100 see B6009

B3200 (8-10’)PC

E = 90 mg/kg

B3300 (10-12’) PC

E = 430 mg/kg

TCE = 13 m

g/kg + elevated D

Ls

B3300 (16-18’) PC

E = 430 mg/kg

TCE = 15 m

g/kg +

elevated DLs

B3800 see B6011

B4300 (10-12.5’) PC

E = 830 mg/kg

TCE = 26 m

g/kg + elevated D

Ls

B4400 (6-9’)PC

E = 85 mg/kg

B4700 (10-12.5’) PC

E = 570 mg/kg

+ elevated DLs

B4900 (0-2.5’)PC

E = 550 mg/kg

TCE = 25 m

g/kg+ elevated D

Ls

B5000 (6-9’)PC

E = 56 mg/kg

B5100 (6-9’)PC

E = 30 mg/kg

B5300 (6-9’)PC

E = 130 mg/kg

TT-100 (16-18’)PC

E = 239 mg/kg

TCE = 18.7 m

g/kg+ elevated D

Ls

TT-101 (12-14’)PC

E = 195 mg/kg

+ elevated DLs

TT-101 (20-22')PC

E = 226 mg/kg

+ elevated DLs

TT-117

B1900

VOC > Tier 1 SRO for Const. W

orker Inhalation; However,

the Nearby Soil Gas Results Dem

onstrate Compliance

B-6007

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028


TT-110

B-6007TT-115

B300B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’VOC > Tier 1 or Tier 2 GROs or SGROs for Residential Indoor Inhalation

BCT = building control technology


B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Residential Indoor

Inhalation7601-7621 Lake Street

River Forest, IL

CB-102

CB-103CB-104-2

SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 8

PCE = 2.14 mg/L

TCE = 1.41 mg/L

VC = 0.948 mg/L

PCE = 0.303 mg/L

PCE = 0.125 mg/L

VOCs < Tier 1 GROs or SGROs for Residential Indoor Inhalation (note: SG-5 results replace M

W6019 results)

PCE < Proposed Tier 2 GRO or SGRO

PCE = 68.1 mg/m

3

TCE = 3.71 mg/m

3

B2800

PCE = 16,000 mg/m

3

BCT Area Required by the 2/3/2015 NFR Letter (issued for 423 Ashland Ave.)


B800

B4500

SG-5

B-6012

B-6004

B500

B700

B4000

B600/M

W600

PCE = 0.14 mg/L

B3500

B-3600

B5100

PCE = 2.24 mg/m

3

Proposed BCT Area

TT-104/M

W-104

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028 TT-110

TT-115B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

VOC > Tier 1 SRO or GRO for the Soil or Groundw

ater Com

ponent of Class I Groundw

ater Ingestion (excludes sam

ples where

standard laboratory detection lim

its exceed the Tier 1 GROs for 1,1,2,2-tetrachloroethane and chloroform

)

B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6022 B-6023

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Results Summ

ary - Soil & G

roundwater Com

ponents of Class I G

roundwater


CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 9

VOCs < Tier 1 SROs or GROs

B2800


B800

B4500

SG-5

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

Estimated Source

Area for Fate & Transport M

odeling (L = 175’; Sw

= 234’)

B-3600

B5100

B-6021

B500

TT-110

B200 B-6007B300

TT-117

B1900

Sample location w

as rem

ediated

B6023

B4500

TT-104/M

W-104

2001 direction of flow

(i = 0.020878)2005 direction of flow

(i = 0.0213)

PC

E >

10

0 m

g/

kg

PC

E >

12

mg

/kg

VO

Cs >

Tie

r 1

B2300

TT-109

Estimated Source

Area for 2-Hexanone Tier 3 M

odeling (Sw

= 44’)


(i = 0.03348)2009 direction of flow

(i = 0.03838)


(i = 0.04942)

L

Sw

Sw

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

Approximate storm

sewer line


January 2021

Maxim

um Predicted

Distance to Achieve the Tier 1 Class I G

RO7601-7621 Lake Street

River Forest, IL


(2020)



FIGURE 10


LAKE STREET

CEN

TRAL AVEN

UE

LATHROP AVENUE

ASHLAND AVENUE

UN

ION

PACIFIC

RAILR

OAD

JACKSON AVENUE

FRANKLIN AVENUE

15-12-111-045

15-12-111-044

15-12-111-041

15-12-111-047 15-12-111-046 15-12-111-044

15-12-111-048

15-12-111-04915-12-212-012

15-12-212-011

15-12-212-010

15-12-212-009

15-12-212-008

15-12-212-019

15-12-212-020

15-12-212-013

15-12-219-038

15-12-219-037

PUBLIC

ALLEYWAY

15-12-219-002

15-12-219-001

15-12-117-016

15-12-117-004

15-12-117-003

15-12-117-001

15-12-110-044

15-12-110-043

15-12-110-042

15-12-110-041

15-12-110-040

15-12-110-039


(i = 0.020878)


(i = 0.0213)


(i = 0.03348)

2009 direction of flow (i = 0.03838)

(i = 0.04942)


M. W

ells-Paske

REMEDIATIO

N SITE

PUBLIC

ALLEYWAY

MAXIM

UM PREDICTED EXTENT

OF M

IGRATIO

N (X = 388.25’)

1” = 100’100’

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028

TT-115B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Proposed Engineered Barrier Boundaries


CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 11

B2800

B800

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

B-3600

B5100

B-6021

B500B200 B-6007

B300TT-117

B1900

Proposed Area to be M

aintained with

Concrete Engineered Barriers


Proposed Mixed-Use Structure

(parking and retail units on the ground level)

RESIDENTIAL

COM

MERCIA

L

LAKE

STREET

LATHROPAVENUE

ASHLANDAVENUE

RESIDENTIAL

GARA

GEGA

RAGE

PARKING LO

T

FIG

UR

E 1

Sam

plin

g L

ocatio

ns

Diag

ram7601 - 7621 L

ake Street

River F

orest, IL

Legend:

Scale:

Draw

n by:

M. S

anabria

Job No:

19-0338-102

Date:

July 2020

Checked by:

Megan W

ells-Paske

1" = 30'0'

30'

North

Soil B

oring Location(P

ioneer 2020)

Approxim

ate Property Line

Storm

Sew

er Line

Monitoring W

ell Location(P

ioneer 2020)

Soil B


Soil G

as Sam

ple Location(S

tantec 2014)

Soil B

oring/ Monitoring W


Base/W

all Sam

ple Location(S

tantec 2014)

FORM

ER PRIVA

TERESIDENCE

423 ASHLA

ND AV

ENUE

FORM

ER 1-STORY

COM

MERCIA

L STRUCTURE

#7621

#7619

#7617

#7601

#7613#7611

#7607

SV-6

SV-1/

SV1R

SV-4

SV-5

B3900

B3700

SV-2/

SV-2R

SV-3/

SV-3R

S.WA

LL1

BASE2

BASE1

W.W

ALL

SW.W

ALL

B800

B2700

B1700B1800/M

W1800

B2800B900/M

W900

B3

B2300

B1

B300

B5400

B3200

B4400

B1500

B4500B4200

B4300

B4600

B3300

B2

B1900

B4900

B600/M

W600

B500

B4800

B3500

B5000

B5200

B3100

B5100

B3800B4100

B3400

B1300/M

W1300

B1600/M

W1600

B1200B2400

B1100/M

W1100

B400

B3000

B5300

B3600

B2500

B2100

B2200

B2000

S.WA

LL2

B-6015

B-6012

B-6011

B-6008

B-6014B-6013

B-6009B-6010

B-6003B-6001

B-6002

B-6005

B-6004

B7000

B4000

B1400

B-6006

TT-111/M

W-111

TT-110

TT-112

TT-101/M

W-101

TT-102/M

W-102

TT-108/M

W-108

TT-105

TT-107

TT-103

TT-114

B-6030B-6029

B-6016

B-6019/M

W6019

B-6018B-6024

B-6017

B-6026

B-6027/M

W6027

B-6028

B-6023

B-6022

B-6021

B-6020B-6031

TT-109

MW

-104

TT-104

TT-100/M

W-100

B-6025

B-6007

B2600

B290

B200

B100

B4700

TT-116TT-113

TT-117(B

-1 thru B-3, E

PS

1998)(B

100 thru B1200, N

orthern 2001)(B

1300, B1400 &

B1500, N

orthern 2004)(B

1600, B1700 &

B1800, N

orthern 2005)B

1900 thru B2300, N

orthern 2007)(B

2400 thru B4000, B

onestroo 2009)(B

4100 thru B5400, B

onestroo 2010)

B1000/M

W1000

TT-115

CB-101

#7601

B-6015

B4900

B-6009

#7617#7619

#7621

B-6028

TT-115B2900

TT-114

TT-113

TT-101/M

W-101

TT-102/M

W-102

B1B3600

B2000

MW

-104-30’

B-6010

B-6005

B-2100

Approximate storm

sewer line


B-3300

B-6002

B-6020

B-6030B-6029

B4300

B4600 TT-100/M

W-100

B-3800

December 2020

B-6017

B-6016

B4200

Proposed Building Control Technology Boundaries7601-7621 Lake Street

River Forest, IL

CB-102

CB-103CB-104-2 SG-6

SG-3

SG-2

SG-1

SG-4


(2020)



FIGURE 12

B2800

B800

B-6012

B-6004

B700

B4000

B600/M

W600

B3500

B-3600

B5100

B-6021

B500B200 B-6007

B300TT-117

B1900

Proposed Building Control Technology (BCT) Area


BCT Area Required by the 2/3/2015 NFR Letter (issued for 423 Ashland Ave.)

94’1.5’

4.5’

36’

54’

4’

45’

87.3’

48.6’ 83.7’

20’

50’

NOTE: A BCT is only required to be installed for ground-level, interior portions of structures that fall w

ithin the boundaries of the BCT areas

beginning at the SEC of the

423 Ashland Avenue parcel

Proposed Mixed-Use Structure

(parking and retail units on the ground level)

TABLES

Table No. 1 Pre-Remediation Soil Sample Analytical Results: VOCs

Table No. 2 Pre-Remediation Groundwater Sample Analytical Results: VOCs

Table No. 3 Post-Remediation Soil Sample Analytical Results: VOCs

Table No. 4 Post-Remediation Soil Gas Sample Analytical Results: VOCs

TABLE NO

. 1 Soil Sam

ple Analytical Results: VO

Cs

7601-7621 Lake Street / River Forest, IL

Tier 1 Soil Rem

ediation Objectives (Tier 1 SR

Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S105 (8-10)

S114 (26-28)

S201 (0-2)

S204 (6-8)

S211 (20-22)

S301 (0-2)

S304 (6-8)

S310 (18-20)

S401 (0-2)

S404 (6-8)

S410 (18-20)

S501 (0-2)

S601 (0-2)

S605 (8-10)

S612 (22-24)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate10/12/01

10/12/0110/12/01

10/12/0110/12/01

10/12/0110/12/01

10/12/0110/12/01

10/12/0110/12/01

11/15/0111/16/01

11/16/0111/16/01

1,1,1-Trichloroethane<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

--1,200

--1,200

29.6

6701,1,2,2-Tetrachloroethane

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0104.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

3101,800

8,2001,800

0.020.3

1,3001,1-Dichloroethane

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0107,800

1,300200,000

13023

1101,400

1,1-Dichloroethene<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

3,900290

10,0003.0

0.060.3

9101,2-Dichloroethane

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0107

0.41,400

0.990.02

0.11,900

1,2-Dichloropropane<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<10.0

<0.050<0.500

<0.500<0.050

<0.050<0.500

<0.050<0.050

<1.00<0.050

<10.0<5.00

<0.250<0.050

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M

ethyl-2-pentanone (MIBK)

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.010--

----

----

----

Acetone<50.0

<0.250<2.50

<2.50<0.250

<0.250<2.50

<0.250<0.250

<5.00<0.250

<50.0<25.0

<1.30<0.250

70,000100,000

--100,000

2525

100,000Benzene

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.01012

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

103,000

2,0003,000

0.60.6

2,000Brom

oform<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.010110

101,000

3.90.2

1.23,100

Carbon Disulfide

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0107,800

72020,000

9.032

160520

Carbon Tetrachloride

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0105

0.3410

0.90.07

0.33560

Chlorobenzene

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0101,600

1304,100

1.31

6.5290

Chloroethane

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.010--

----

----

----

Chloroform

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.010100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<2.00

<0.050<0.010

----

----

----

--cis-1,2-Dichloroethene

6.60<0.010

<0.1001.00

<0.010<0.010

<0.100<0.010

<0.0102.00

<0.010<2.00

4.00<0.050

<0.010780

1,20020,000

1,2000.4

1.11,000

1,3-Dichloropropene (cis + trans)<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0101,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

7,800400

20,00058

1319

150M

ethyl Tertiary-Butyl Ether—

——

——

——

——

——

——

——

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<2.000.015 J

<0.100<0.100

0.012 J0.016 J

0.170 J0.013 J

0.014 J<0.200

0.014 J<2.00

<1.00<0.050

<0.01085

1312,000

340.02

0.22,500

Styrene<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

16,0001,500

41,000430

418

260Tetrachloroethene

1000.014 J

4.4036.0

<0.0101.00

4.90<0.010

0.88031.0

0.019 J360

360150

0.014 J12

112,400

280.06

0.31,075

(3)

Toluene<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

16,000650

410,00042

1229

290Total Xylenes

<6.00<0.030

<0.300<0.300

<0.030<0.030

<0.300<0.030

<0.030<0.600

<0.030<6.00

<3.00<0.150

<0.03016,000

32041,000

5.6150

150110

trans-1,2-Dichloroethene<2.00

<0.010<0.100

<0.100<0.010

<0.010<0.100

<0.010<0.010

<0.200<0.010

<2.00<1.00

<0.050<0.010

1,6003,100

41,0003,100

0.73.4

2,100Trichloroethene

4.30 J<0.010

<0.1000.320

<0.010<0.010

<0.100<0.010

<0.0100.370 J

<0.010<2.00

8.100.150

<0.01058

51,200

120.06

0.3650

Vinyl Chloride

<2.00<0.010

<0.100<0.100

<0.010<0.010

<0.100<0.010

<0.010<0.200

<0.010<2.00

<1.00<0.050

<0.0100.46

0.28170

1.10.01

0.072,600

Notes: Results listed in m

g/kg (parts per million)

Tier 1 SROs pursuant to 35 IAC

742-Tiered Approach to Corrective Action Objectives (Appendix B, Tables A & B)

Shaded/Bolded cell indicates value exceeds the most stringent Tier 1 SRO

Shaded/italicized cell indicates an elevated detection limit for a confirm

ed contaminant that exceeds the m

ost stringent Tier 1 SRO“J” indicates the com

pound was detected betw

een the limit of detection and the lim

it of quantitation "<" indicates not detected at stated detection lim

its"--" indicates value not available(1) Pursuant to 35 IAC

742-Tiered Approach to Corrective Action Objectives (Appendix A, Table A)

(2)Non-TAC

O SRO

calculated in accordance with the Illinois EPA’s online “Procedures for Determ

ining Soil Remediation O

bjectives for Non-TACO Chem

icals” (see the calculation spreadsheets following the analytical data tables)

(3)Site-specific soil saturation limit as presented in the Am

ended FSIR/ROR/RAP, dated January 15, 2020, and approved by the Illinois EPA on April 3, 2020

Page of

117

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S701 (0-2)

S705 (8-10)

S712 (22-24)

S801 (0-2)

S804 (6-8)

S812 (22-24)

S901 (0-2)

S905 (8-10)

S907 (12-14)

S1001 (0-2)

S1005 (8-10)

S1012 (22-24)

S1101 (0-2)

SS1104 (6-8)

S1112 (22-24)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate11/16/01

11/16/0111/16/01

11/16/0111/16/01

11/16/0111/15/01

11/15/0111/15/01

11/15/0111/15/01

11/15/0111/21/01

11/21/0111/21/01


<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

--1,200

--1,200

29.6


<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0104.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

3101,800

8,2001,800

0.020.3


<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0107,800

1,300200,000

13023

1101,400


<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

3,900290

10,0003.0

0.060.3


<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0107

0.41,400

0.990.02

0.11,900


<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.050

<0.500<0.050

<0.050<1.00

<0.050<0.050

<0.050<0.050

<0.050<1.00

<0.050<0.050

<0.500<0.050

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.010--

----

----

----

Acetone<0.250

<2.50<0.250

<0.250<5.00

<0.250<0.250

<0.250<0.250

<0.250<5.00

<0.250<0.250

<2.50<0.250

70,000100,000

--100,000

2525

100,000Benzene

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.01012

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.010110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0107,800

72020,000

9.032

160520


<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0105

0.3410

0.90.07

0.33560

Chlorobenzene

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0101,600

1304,100

1.31

6.5290

Chloroethane

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.010--

----

----

----

Chloroform

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.010100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

----

----

----


<0.010<0.100

<0.0101.40

0.530 J<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.010780

1,20020,000

1,2000.4

1.11,000


<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0101,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

7,800400

20,00058

1319

150M


——

——

——

——

——

——

——

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.0100.120 J

<0.010<0.010

<0.200<0.010

<0.010<0.010

0.013 J<0.010

0.250 J<0.010

<0.010<0.100

<0.01085

1312,000

340.02

0.22,500

Styrene<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

16,0001,500

41,000430

418


0.26016.0

0.015 J1.70

19.00.022

0.0562.90

<0.0100.150

17.00.015 J

0.15016.0

0.12012

112,400

280.06

0.31,075

(3)

Toluene<0.010

<0.100<0.010

<0.010<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

16,000650

410,00042

1229

290Total Xylenes

<0.030<0.300

<0.030<0.030

<0.600<0.030

<0.030<0.030

<0.030<0.030

<0.600<0.030

<0.030<0.300

<0.03016,000

32041,000

5.6150

150110


<0.100<0.010

0.140<0.200

<0.010<0.010

<0.010<0.010

<0.010<0.200

<0.010<0.010

<0.100<0.010

1,6003,100

41,0003,100

0.73.4


<0.010<0.100

<0.0101.50

0.670<0.010

<0.0100.260

<0.0100.019 J

0.680<0.010

<0.010<0.100

<0.01058

51,200

120.06

0.3650

Vinyl Chloride

<0.010<0.100

<0.010<0.010

<0.200<0.010

<0.010<0.010

<0.010<0.010

<0.200<0.010

<0.010<0.100

<0.0100.46

0.28170

1.10.01

0.072,600








ost stringent Tier 1 SRO“J” indicates the com

pound was detected betw

een the limit of detection and the lim

it of quantitation "<" indicates not detected at stated detection lim



(2)Non-TAC

O SRO







Page of

217

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S1201 (0-2)

S1205 (8-10)

S1212 (22-24)

1305 (8-10)

1310 (18-20)

1402 (2-4)

1406 (10-12)

1502 (2-4)

1506 (10-12)

S1613 (26-28)

S1618 (36-38)

S1701 (0-2)

S1704 (6-8)

S1801 (0-2)

S1804 (6-8)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate11/21/01

11/21/0111/21/01

11/9/0411/9/04

11/9/0411/9/04

11/9/0411/9/04

9/21/059/21/05

9/21/059/21/05

9/21/059/21/05


<0.100<0.010

<0.0010<0.0012

<0.0011<0.0012

<0.0012<0.0011

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

--1,200

--1,200

29.6


<0.010<0.100

<0.010<0.0010

<0.0011<0.0011

<0.0011<0.0011

<0.0011<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0054.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.100<0.010

<0.00096<0.0011

<0.0010<0.0011

<0.0011<0.0010

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

3101,800

8,2001,800

0.020.3


<0.010<0.100

<0.010<0.0015

<0.0016<0.0015

<0.0016<0.0016

<0.0016<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0057,800

1,300200,000

13023

1101,400


<0.100<0.010

<0.0015<0.0016

<0.0015<0.0016

<0.0016<0.0016

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

3,900290

10,0003.0

0.060.3


<0.010<0.100

<0.010<0.00094

<0.0011<0.00098

<0.0010<0.0010

<0.0010<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0057

0.41,400

0.990.02

0.11,900


<0.100<0.010

<0.0010<0.0012

<0.0011<0.0012

<0.0012<0.0011

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.050

<0.500<0.050

<0.0047<0.0053

<0.0049<0.0052

<0.0052<0.0050

<0.0082<0.0097

<0.011<0.0099

0.012<0.01

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.010

<0.100<0.010

0.0049 J<0.0030

<0.0028<0.039

<0.0030<0.0029

<0.0082<0.0097

<0.011<0.0099

<0.0098<0.01

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.010<0.100

<0.010<0.0022

<0.0025<0.0023

<0.0024<0.0024

<0.0023<0.0082

<0.0097<0.011

<0.0099<0.0098

<0.01--

----

----

----

Acetone<0.250

<2.50<0.250

<0.00170.0095

<0.00170.0056 J

<0.0018<0.0018

0.042<0.048

<0.053<0.05

0.089<0.05

70,000100,000

--100,000

2525

100,000Benzene

<0.010<0.100

<0.010<0.00071

<0.00080<0.00074

<0.00079<0.00079

<0.00076<0.0041

<0.0048<0.0053

<0.005<0.0049

0.005312

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.010

<0.100<0.010

<0.0011<0.0013

<0.0012<0.0013

<0.0013<0.0012

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.010

<0.100<0.010

<0.0014<0.0015

<0.0014<0.0014

<0.0015<0.0014

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.010<0.100

<0.010<0.0030

<0.0034<0.0032

<0.0034<0.0034

<0.0032<0.0082

<0.0097<0.011

<0.0099<0.0098

<0.01110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.010<0.100

<0.010<0.0018

<0.0020<0.0019

<0.0020<0.0020

<0.00190.027

<0.00480.015

<0.005<0.0049

<0.0057,800

72020,000

9.032

160520


<0.010<0.100

<0.010<0.0011

<0.0013<0.0012

<0.0013<0.0013

<0.0012<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0055

0.3410

0.90.07

0.33560

Chlorobenzene

<0.010<0.100

<0.010<0.00083

<0.00094<0.00087

<0.00093<0.00092

<0.00089<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0051,600

1304,100

1.31

6.5290

Chloroethane

<0.010<0.100

<0.010<0.0020

<0.0022<0.0021

<0.0022<0.0022

<0.0021<0.0082

<0.0097<0.011

<0.0099<0.0098

<0.01--

----

----

----

Chloroform

<0.010<0.100

<0.010<0.0011

<0.0013<0.0012

<0.0013<0.0013

<0.0012<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.005100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.010

<0.100<0.010

<0.0017<0.0019

<0.0017<0.0019

<0.0018<0.0018

<0.0082<0.0097

<0.011<0.0099

<0.0098<0.01

----

----

----


<0.010<0.100

<0.010<0.0012

<0.0014<0.0013

<0.0014<0.0014

<0.0013<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.005780

1,20020,000

1,2000.4

1.11,000


<0.100<0.010

<0.0011<0.0013

<0.0012<0.0013

<0.0013<0.0012

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.010<0.100

<0.010<0.0012

<0.0014<0.0013

<0.0014<0.0014

<0.0013<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0051,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.010

<0.100<0.010

<0.00069<0.00077

<0.00072<0.00077

<0.00076<0.00073

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

7,800400

20,00058

1319

150M


——

<0.0011<0.0013

<0.0012<0.0013

<0.0013<0.0012

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.010<0.100

<0.010<0.0015

<0.0016<0.0015

<0.0016<0.0016

<0.0016<0.0082

<0.0097<0.011

<0.0099<0.0098

<0.0185

1312,000

340.02

0.22,500

Styrene<0.010

<0.100<0.010

<0.00071<0.00080

<0.00074<0.00079

<0.00079<0.00076

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

16,0001,500

41,000430

418


0.03523.0

<0.010<0.0016

<0.00180.0030 J

<0.0017<0.0017

<0.0017<0.0041

<0.0048<0.0053

0.0050.052

0.1112

112,400

280.06

0.31,075

(3)

Toluene<0.010

<0.100<0.010

<0.0012<0.0014

<0.0013<0.0014

<0.0014<0.0013

<0.0041<0.0048

<0.0053<0.005

<0.00490.0092

16,000650

410,00042

1229

290Total Xylenes

<0.030<0.300

<0.030<0.00209

<0.00227<0.00212

<0.00227<0.00226

<0.00213<0.012

<0.015<0.016

<0.015<0.015

<0.01516,000

32041,000

5.6150

150110


<0.100<0.010

<0.0011<0.0013

<0.0012<0.0013

<0.0013<0.0012

<0.0041<0.0048

<0.0053<0.005

<0.0049<0.005

1,6003,100

41,0003,100

0.73.4


<0.010<0.100

<0.010<0.00075

<0.00084<0.00079

<0.00084<0.00083

<0.00080<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.00558

51,200

120.06

0.3650

Vinyl Chloride

<0.010<0.100

<0.010<0.0017

<0.0019<0.0017

<0.0019<0.0018

<0.0016<0.0041

<0.0048<0.0053

<0.005<0.0049

<0.0050.46

0.28170

1.10.01

0.072,600








ost stringent Tier 1 SRO"<" indicates not detected at stated detection lim



(2)Non-TAC

O SRO







Page of

317

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S1904 (6-8)

S1913 (26-28)

S2004 (6-8)

S2013 (26-28)

S2104 (6-8)

S2113 (26-28)

S2204 (6-8)

S2213 (26-28)

S2304 (6-8)

S2313 (26-28)

B2403 (6-9)

B2406 (15-18)

B2501 (0-2)

B2509 (16-18)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate5/24/07

5/24/075/24/07

5/24/075/24/07

5/24/075/24/07

5/24/075/24/07

5/24/073/23/09

3/23/093/23/09

3/23/091,1,1-Trichloroethane

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

--1,200

--1,200

29.6


<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)

--1,1,2-Trichloroethane

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

3101,800

8,2001,800

0.020.3


<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

7,8001,300

200,000130

23110

1,4001,1-Dichloroethene

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

3,900290

10,0003.0

0.060.3


<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

70.4

1,4000.99

0.020.1

1,9001,2-Dichloropropane

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.01

<0.0093<0.01

<0.011<0.0099

<0.0091<0.01

<0.0089<0.012

<0.0092<0.066

<0.0039<1.1

<0.004346,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.01<0.0093

<0.01<0.011

<0.0099<0.0091

<0.01<0.0089

<0.012<0.0092

<0.066<0.0039

<1.1<0.0043

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.01<0.0093

<0.01<0.011

<0.0099<0.0091

<0.01<0.0089

<0.012<0.0092

<0.066<0.0039

<1.1<0.0043

----

----

----

--Acetone

<0.052<0.046

<0.05<0.053

<0.05<0.046

<0.05<0.044

<0.058<0.046

<0.13<0.0039

<2.2<0.0043

70,000100,000

--100,000

2525

100,000Benzene

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.0082<0.0039

<0.14<0.0043

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.066<0.0039

<1.1<0.0043

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.066

<0.0039<1.1

<0.004381

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.01

<0.0093<0.01

<0.011<0.0099

<0.0091<0.01

<0.0089<0.012

<0.0092<0.066

<0.0039<1.1

<0.0043110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.066<0.0039

<1.1<0.0043

7,800720

20,0009.0

32160

520C

arbon Tetrachloride<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.033

<0.0039<0.55

<0.00435

0.3410

0.90.07

0.33560

Chlorobenzene

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

1,600130

4,1001.3

16.5

290C

hloroethane<0.01

<0.0093<0.01

<0.011<0.0099

<0.0091<0.01

<0.0089<0.012

<0.0092<0.066

<0.0039<1.1

<0.0043--

----

----

----

Chloroform

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.033<0.0039

<0.55<0.0043

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.01<0.0093

<0.01<0.011

<0.0099<0.0091

<0.01<0.0089

<0.012<0.0092

<0.066<0.0039

<1.1<0.0043

----

----

----


<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

0.19<0.0039

1.9<0.0043

7801,200

20,0001,200

0.41.1

1,0001,3-Dichloropropene (cis + trans)

<0.0021<0.0019

<0.002<0.0021

<0.002<0.0018

<0.002<0.0018

<0.0023<0.0018

<0.033<0.0039

<0.55<0.0043

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.066<0.0039

<1.1<0.0043

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.0082<0.0039

<0.14<0.0043

7,800400

20,00058

1319

150M

ethyl Tertiary-Butyl Ether<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.066

<0.0039<1.1

<0.0043780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.01

<0.0093<0.01

<0.011<0.0099

<0.0091<0.01

<0.0089<0.012

<0.0092<0.066

<0.0039<1.1

<0.004385

1312,000

340.02

0.22,500

Styrene<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.033

<0.0039<0.55

<0.004316,000

1,50041,000

4304

18260

Tetrachloroethene0.2

<0.00462.6

0.005318

<0.004724

<0.00440.25

<0.00462.8

<0.0039220

<0.004312

112,400

280.06

0.31,075

(3)

Toluene<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.033

<0.0039<0.14

<0.004316,000

650410,000

4212

29290

Total Xylenes<0.016

<0.014<0.015

<0.0016<0.015

<0.014<0.015

<0.013<0.017

<0.014<0.033

<0.0078<0.55

<0.008616,000

32041,000

5.6150

150110


<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.033

<0.0039<0.55

<0.00431,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene<0.0052

<0.0046<0.005

<0.0053<0.005

<0.0046<0.005

<0.0044<0.0058

<0.0046<0.0082

<0.00396.2

<0.004358

51,200

120.06

0.3650

Vinyl Chloride

<0.0052<0.0046

<0.005<0.0053

<0.005<0.0046

<0.005<0.0044

<0.0058<0.0046

<0.0082<0.0039

<0.14<0.0043

0.460.28

1701.1

0.010.07

2,600N

otes: Results listed in mg/kg (parts per m

illion)Tier 1 SRO

s pursuant to 35 IAC 742-Tiered Approach to Corrective Action O

bjectives (Appendix B, Tables A & B)Shaded/Bolded cell indicates value exceeds the m

ost stringent Tier 1 SROShaded/italicized cell indicates an elevated detection lim

it for a confirmed contam

inant that exceeds the most stringent Tier 1 SRO

"<" indicates not detected at stated detection limits

"--" indicates value not available(1) Pursuant to 35 IAC


(2)Non-TAC

O SRO







Page of

417

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B2602 (2-4)

B2609 (16-18)

B2705 (8-10)

B2708 (14-15)

B2803 (4-6)

B2808 (14-16)

B2901 (0-3)

B2904 (9-12)

B3003 (6-9)

B3004 (9-12)

S-3108 (10.5-12)

S-3112 (16.5-18)

S-3205 (8-10)

S-3209 (16-18)

S-3306 (10-12)

S-3309 (16-18)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate3/23/09

3/23/093/23/09

3/23/093/23/09

3/23/093/23/09

3/23/093/23/09

3/23/0911/11/09

11/11/0911/11/09

11/11/0911/11/09


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.7<0.00049

<0.082<0.018

<0.070<0.17

--1,200

--1,200

29.6


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<4.2<0.00055

<0.092<0.020

<0.079<0.19

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<5.2<0.00062

<0.11<0.025

<0.098<0.23

3101,800

8,2001,800

0.020.3


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.0<0.00053

<0.065<0.014

<0.056<0.13

7,8001,300

200,000130

23110


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.6<0.00067

<0.078<0.017

<0.067<0.16

3,900290

10,0003.0

0.060.3


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.6<0.00069

<0.079<0.017

<0.068<0.16

70.4

1,4000.99

0.020.1


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.8<0.00056

<0.083<0.018

<0.071<0.17

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.086

<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<11

<0.00090<0.24

<0.052<0.20

<0.4846,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<5.6<0.00057

<0.12<0.027

<0.11<0.25

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<5.2<0.00041

<0.11<0.025

<0.098<0.23

----

----

----

--Acetone

<0.17<0.0042

<0.17<0.15

<0.0044<0.0043

<0.43<0.0041

<3.1<0.18

<22<0.0014

<0.48<0.11

<0.41<0.96

70,000100,000

--100,000

2525

100,000Benzene

<0.011<0.0042

<0.011<0.0093

<0.0044<0.0043

<0.027<0.0041

<0.20<0.011

<0.62<0.00058

<0.014<0.0030

<0.012<0.028

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<2.9<0.00056

<0.064<0.014

<0.055<0.13

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.086

<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<5.0

<0.00058<0.11

<0.024<0.095

<0.2281

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.086

<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<4.5

<0.0010<0.099

<0.022<0.085

<0.20110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<2.1<0.00058

<0.047<0.010

<0.050<0.094

7,800720

20,0009.0

32160

520C


<0.0042<0.043

<0.037<0.0044

<0.0043<0.11

<0.0041<0.78

<0.045<3.5

<0.00048<0.077

<0.017<0.066

<0.165

0.3410

0.90.07

0.33560

Chlorobenzene

<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<2.8<0.00056

<0.062<0.014

<0.054<0.13

1,600130

4,1001.3

16.5

290C

hloroethane<0.086

<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<4.5

<0.00068<0.090

<0.022<0.085

<0.20--

----

----

----

Chloroform

<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<2.2<0.00061

<0.049<0.011

<0.042<0.098

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<4.9<0.00080

<0.11<0.024

<0.093<0.22

----

----

----


8.4<0.0042

1.1<0.037

<0.0044<0.0043

0.69<0.0041

38<0.045

<3.3<0.00061

0.099 J0.039 J

1.21.3

7801,200

20,0001,200

0.41.1


<0.043<0.0042

<0.043<0.037

<0.0044<0.0043

<0.11<0.0041

<0.78<0.045

<3.0<0.00054

<0.066<0.015

<0.057<0.13

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.086<0.0042

<0.086<0.075

<0.0044<0.0043

<0.21<0.0041

<1.6<0.090

<3.2<0.00045

<0.070<0.015

<0.060<0.14

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.011<0.0042

<0.011<0.0093

<0.0044<0.0043

<0.027<0.0041

<0.20<0.011

<0.90<0.00056

<0.020<0.0044

<0.017<0.040

7,800400

20,00058

1319

150M


<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<2.7

<0.00069<0.058

<0.013<0.050

<0.12780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.086

<0.0042<0.086

<0.075<0.0044

<0.0043<0.21

<0.0041<1.6

<0.090<2.9

<0.0015<0.065

<0.014<0.056

<0.1385

1312,000

340.02

0.22,500

Styrene<0.043

<0.0042<0.043

<0.037<0.0044

<0.0043<0.11

<0.0041<0.78

<0.045<2.5

<0.00055<0.054

<0.012<0.046

<0.1116,000

1,50041,000

4304

18260


<0.004250

<0.0370.0058

<0.0043100

<0.0041940

<0.04514,000

0.0024 J90

14430

43012

112,400

280.06

0.31,075

(3)

Toluene<0.011

<0.0042<0.011

<0.0093<0.0044

<0.0043<0.027

<0.0041<0.20

<0.011<1.3

<0.00055<0.030

<0.0066<0.026

<0.06016,000

650410,000

4212

29290

Total Xylenes<0.043

<0.0084<0.043

<0.037<0.0088

<0.0085<0.11

<0.0081<0.78

<0.045<2.5

<0.0011<0.055

<0.012<0.048

<0.1116,000

32041,000

5.6150

150110

trans-1,2-Dichloroethene1.2

<0.0042<0.043

<0.037<0.0044

<0.0043<0.11

<0.0041<0.78

<0.045<2.8

<0.00060<0.062

<0.014<0.054

<0.131,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene1.1

<0.00422.9

<0.0093<0.0044

<0.00431.8

<0.0041130

<0.01134

<0.000440.66

0.1613

1558

51,200

120.06

0.3650

Vinyl Chloride

1.1<0.0042

<0.011<0.0093

<0.0044<0.0043

<0.027<0.0041

<0.20<0.011

<1.0<0.00039

<0.022<0.0048

<0.019<0.044

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO






Strikethrough text indicates a location specifically targeted for resampling in 2019 (see the resam

pling results from B-6009)

Samples w

ithin bold outline were w

ithin the treatment zone; see Table No. 3 for the confirm

ation soil sample results

“J” value is less than the reporting limit but greater than or equal to the m

ethod detection limit




(2)Non-TAC

O SRO







Page of

517

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S-3408 (14-16)

S-3409 (16-18)

S-3501(0-2)

S-3509(16-18)

S-3604(6-8)

S-3609(16-18)

S-3704(6-8)

S-3709(16-18)

B3807 (9-10.5)

B3812 (16.5-18)

B3903(4-6)

B3909(16-18)

B4004(6-8)

B4009(16-18)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate11/11/09

11/11/0911/24/09

11/24/0911/24/09

11/24/0911/24/09

11/24/0911/24/09

11/24/0911/24/09

11/24/0911/24/09


<0.00052<0.00057

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

--1,200

--1,200

29.6


<0.00058<0.00063

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.00065<0.00072

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

3101,800

8,2001,800

0.020.3


<0.00058<0.00062

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

7,8001,300

200,000130

23110


<0.00071<0.00078

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

3,900290

10,0003.0

0.060.3


<0.00072<0.00080

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

70.4

1,4000.99

0.020.1


<0.00059<0.00065

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.0011

<0.0010<0.26

<0.23

<0.38

<0.0041

<0.24

<0.20

<4.5<0.21

<0.0048

<0.0042

<0.0047

<0.21

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.00060

<0.00066<0.26

<0.23

<0.38

<0.0041

<0.24

<0.20

<4.5<0.21

<0.0048

<0.0042

<0.0047

<0.21

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.00043<0.00047

<0.26

<0.23

<0.38

<0.0041

<0.24

<0.20

<4.5<0.21

<0.0048

<0.0042

<0.0047

<0.21

----

----

----

--Acetone

0.00840.021

<0.26

<0.23

<0.38

0.037<0.24

<0.20

<4.5<0.21

0.0160.019

0.021<0.21

70,000100,000

--100,000

2525

100,000Benzene

<0.00061<0.00067

<0.013

<0.012

<0.019

<0.0041

<0.012

<0.0099

<0.22<0.011

<0.0048

<0.0042

<0.0047

<0.011

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.0058<0.00064

<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.00061

<0.00067<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.0011<0.0012

<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

11010

1,0003.9

0.21.2

3,100C

arbon Disulfide<0.00061

<0.00067<0.26

<0.23

<0.38

<0.0041

<0.24

<0.20

<4.5<0.21

<0.0048

<0.0042

<0.0047

<0.21

7,800720

20,0009.0

32160

520C


<0.00055<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

50.3

4100.9

0.070.33

560C

hlorobenzene<0.0059

<0.00065<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

1,600130

4,1001.3

16.5

290C

hloroethane<0.00071

<0.00079<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

----

----

----

--C

hloroform<0.00064

<0.00071<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.00084<0.00092

<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

----

----

----


0.0190.0098

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

7801,200

20,0001,200

0.41.1


<0.00057<0.00063

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.00047<0.00052

<0.10

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.00059<0.00065

<0.013

<0.012

<0.019

<0.0041

<0.012

<0.0099

<0.22<0.011

<0.0048

<0.0042

<0.0047

<0.011

7,800400

20,00058

1319

150M


<0.00080<0.26

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.0016<0.0017

<0.26

<0.092

<0.15

<0.0041

<0.098

<0.079

<1.8<0.084

<0.0048

<0.0042

<0.0047

<0.085

8513

12,00034

0.020.2

2,500Styrene

<0.00048<0.00053

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

16,0001,500

41,000430

418


<0.000720.0024 J

2.5<0.046

29<0.0041

1.2<0.040

1,3001.8

0.0450.0046

0.038<0.043

1211

2,40028

0.060.3

1,075(3)

Toluene<0.00058

<0.000630.27

<0.012

0.14<0.0041

<0.012

<0.0099

<0.22<0.011

0.020<0.0042

<0.0047

<0.011

16,000650

410,00042

1229

290Total Xylenes

<0.0011<0.0012

<0.052

<0.046

<0.077

<0.0083

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

16,000320

41,0005.6

150150

110trans-1,2-Dichloroethene

<0.0063<0.00070

<0.052

<0.046

<0.077

<0.0041

<0.049

<0.040

<0.89<0.042

<0.0048

<0.0042

<0.0047

<0.043

1,6003,100

41,0003,100

0.73.4


<0.00046<0.00051

<0.013

<0.012

<0.019

<0.0041

<0.012

<0.0099

2.8<0.011

<0.0048

<0.0042

<0.0047

<0.011

585

1,20012

0.060.3

650Vinyl C

hloride<0.00041

<0.00045<0.013

<0.012

<0.019

<0.0041

<0.012

<0.0099

<0.22<0.011

<0.0048

<0.0042

<0.0047

<0.011

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO






Strikethrough text indicates a location specifically targeted for resampling in 2019 (see the resam

pling results from B-6011)

Samples from

B3500, B3600, B3700, B3900 and B4000 were obtained from

423 Ashland Avenue, which w

as issued an NFR letter in 2015; note that sample S-3604 w

as remediated

“J” value is less than the reporting limit but greater than or equal to the m

ethod detection limit




(2)Non-TAC

O SRO







Page of

617

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

S-4105 (10-12.5)

S-4110 (22.5-25)

S-4202 (2.5-5)

S-4210 (22.5-25)

S-4304 (10-12.5)

S-4309 (22.5-25)

S-4403 (6-9)

S-4408 (21-24)

B4504 (7.5-10)

B4510 (22.5-25)

B4605 (10-12.5)

B4610 (22.5-25)

B4705 (10-12.5)

B4710 (22.5-25)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate9/27/10

9/27/109/27/10

9/27/109/27/10

9/27/109/27/10

9/27/109/28/10

9/28/109/28/10

9/28/109/28/10


<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

--1,200

--1,200

29.6


<0.0450.47

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.0450.075

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

3101,800

8,2001,800

0.020.3


<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

7,8001,300

200,000130

23110


<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

0.073<0.040

<0.80<0.040

3,900290

10,0003.0

0.060.3


<0.0450.23

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

70.4

1,4000.99

0.020.1


<0.0451.4

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.22

2.2<0.23

<0.22<4.6

<0.23<0.45

<0.23<0.24

<0.21<0.22

<0.20<4.0

<0.2046,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.223.8

<0.23<0.22

<4.6<0.23

<0.45<0.23

<0.24<0.21

<0.22<0.20

<4.0<0.20

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.22<0.21

<0.23<0.22

<4.6<0.23

<0.45<0.23

<0.24<0.21

<0.22<0.20

<4.0<0.20

----

----

----

--Acetone

<0.22<0.21

<0.23<0.22

<4.6<0.23

<0.45<0.23

<0.24<0.21

<0.22<0.20

<4.0<0.20

70,000100,000

--100,000

2525

100,000Benzene

0.11<0.010

<0.011<0.011

<0.23<0.012

<0.022<0.011

<0.012<0.010

<0.011<0.0099

<0.20<0.010

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.089<0.083

<0.091<0.089

<1.8<0.094

<0.18<0.091

<0.096<0.083

<0.088<0.079

<1.6<0.081

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.089

<0.083<0.091

<0.089<1.8

<0.094<0.18

<0.091<0.096

<0.083<0.088

<0.079<1.6

<0.08181

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.089

0.19<0.091

<0.089<1.8

<0.094<0.18

<0.091<0.096

<0.083<0.088

<0.079<1.6

<0.081110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.22<0.21

<0.23<0.22

<4.6<0.23

<0.45<0.23

<0.24<0.21

<0.22<0.20

<4.0<0.20

7,800720

20,0009.0

32160

520C


<0.042<0.046

<0.044<0.92

<0.047<0.089

<0.046<0.048

<0.042<0.044

<0.040<0.80

<0.0405

0.3410

0.90.07

0.33560

Chlorobenzene

<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

1,600130

4,1001.3

16.5

290C

hloroethane<0.089

<0.083<0.091

<0.089<1.8

<0.094<0.18

<0.091<0.096

<0.083<0.088

<0.079<1.6

<0.081--

----

----

----

Chloroform

<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.089<0.083

<0.091<0.089

<1.8<0.094

<0.18<0.091

<0.096<0.083

<0.088<0.079

<1.6<0.081

----

----

----


1.1<0.042

0.22<0.044

3.8<0.047

<0.089<0.046

0.67<0.042

3.4<0.040

3.3<0.040

7801,200

20,0001,200

0.41.1


<0.045<0.042

<0.046<0.044

<0.92<0.047

<0.089<0.046

<0.048<0.042

<0.044<0.040

<0.80<0.040

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.089<0.083

<0.091<0.089

<1.8<0.094

<0.18<0.091

<0.096<0.083

<0.088<0.079

<1.6<0.081

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

0.0550.06

<0.011<0.011

<0.230.026

<0.022<0.011

<0.0120.023

<0.011<0.0099

<0.20<0.010

7,800400

20,00058

1319

150M


<0.083<0.091

<0.089<1.8

<0.094<0.18

<0.091<0.096

<0.083<0.088

<0.079<1.6

<0.081780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.089

<0.083<0.091

<0.089<1.8

<0.094<0.18

<0.091<0.096

0.0870.38

0.17<1.6

<0.08185

1312,000

340.02

0.22,500

Styrene<0.045

<0.042<0.046

<0.044<0.92

<0.047<0.089

<0.046<0.048

<0.042<0.044

<0.040<0.80

<0.04016,000

1,50041,000

4304

18260

Tetrachloroethene<0.045

<0.04219

<0.044830

<0.04785

0.0594

<0.04227

0.042570

0.0712

112,400

280.06

0.31,075

(3)

Toluene<0.011

<0.010<0.011

<0.011<0.23

<0.012<0.022

<0.011<0.012

<0.010<0.011

<0.0099<0.20

<0.01016,000

650410,000

4212

29290

Total Xylenes<0.045

0.076<0.046

0.073<0.92

0.096<0.089

<0.046<0.048

0.097<0.044

0.042<0.80

0.08316,000

32041,000

5.6150

150110


<0.042<0.046

<0.044<0.92

<0.047<0.089

<0.046<0.048

<0.0420.052

<0.040<0.80

<0.0401,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene<0.011

<0.0102.4

<0.01126

<0.0120.45

<0.0110.68

<0.0108

<0.009912

<0.01058

51,200

120.06

0.3650

Vinyl Chloride

0.22<0.010

<0.011<0.011

<0.23<0.012

<0.022<0.011

<0.012<0.010

0.094<0.0099

<0.20<0.010

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO






Samples w







(2)Non-TAC

O SRO







Page of

717

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B4801 (0-2.5)

B4810 (22.5-25)

B4901 (0-2.5)

B4910 (22.5-25)

B5003 (6-9)

B5008 (21-24)

B5103 (6-9)

B5108 (21-24)

B5203 (6-9)

B5208 (21-24)

B5303 (6-9)

B5308 (21-24)

B5403 (6-9)

B5408 (21-24)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate9/28/10

9/28/109/28/10

9/28/109/28/10

9/28/109/29/10

9/29/109/29/10

9/29/109/29/10

9/29/109/30/10


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

--1,200

--1,200

29.6


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

0.28<0.044

<0.19<0.044

<0.046<0.041

3101,800

8,2001,800

0.020.3


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

7,8001,300

200,000130

23110


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

3,900290

10,0003.0

0.060.3


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

70.4

1,4000.99

0.020.1


<0.052<0.039

<0.58<0.047

0.31<0.040

<0.045<0.038

1.6<0.044

<0.19<0.044

0.32<0.041

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.26

<0.19<2.9

<0.24<0.45

<0.20<0.22

<0.19<0.25

<0.22<0.94

<0.22<0.23

<0.2146,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.26<0.19

<2.9<0.24

<0.45<0.20

<0.22<0.19

<0.25<0.22

<0.94<0.22

<0.23<0.21

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.26<0.19

<2.9<0.24

<0.45<0.20

<0.22<0.19

<0.25<0.22

<0.94<0.22

<0.23<0.21

----

----

----

--Acetone

<0.26<0.19

<2.9<0.24

<0.45<0.20

<0.22<0.19

<0.25<0.22

<0.94<0.22

<0.23<0.21

70,000100,000

--100,000

2525

100,000Benzene

<0.013<0.0097

<0.14<0.012

<0.022<0.010

<0.011<0.0095

<0.013<0.011

<0.047<0.011

<0.012<0.010

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.10<0.077

<1.2<0.094

<0.18<0.081

<0.089<0.076

<0.10<0.088

<0.37<0.088

<0.092<0.082

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.10

<0.077<1.2

<0.094<0.18

<0.081<0.089

<0.076<0.10

<0.088<0.37

<0.088<0.092

<0.08281

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.10

<0.077<1.2

<0.094<0.18

<0.081<0.089

<0.0760.23

<0.088<0.37

<0.088<0.092

<0.082110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.26<0.19

<2.9<0.24

<0.45<0.20

<0.22<0.19

<0.25<0.22

<0.94<0.22

<0.23<0.21

7,800720

20,0009.0

32160

520C


<0.039<0.58

<0.047<0.089

<0.040<0.045

<0.038<0.050

<0.044<0.19

<0.044<0.046

<0.0415

0.3410

0.90.07

0.33560

Chlorobenzene

<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

1,600130

4,1001.3

16.5

290C

hloroethane<0.10

<0.077<1.2

<0.094<0.18

<0.081<0.089

<0.076<0.10

<0.088<0.37

<0.088<0.092

<0.082--

----

----

----

Chloroform

<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.10<0.077

<1.2<0.094

<0.18<0.081

<0.089<0.076

<0.10<0.088

<0.37<0.088

<0.092<0.082

----

----

----


0.82<0.039

29<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

29<0.044

0.56<0.041

7801,200

20,0001,200

0.41.1


<0.052<0.039

<0.58<0.047

<0.089<0.040

<0.045<0.038

<0.050<0.044

<0.19<0.044

<0.046<0.041

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.10<0.077

<1.2<0.094

<0.18<0.081

<0.089<0.076

0.11<0.088

<0.37<0.088

<0.092<0.082

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.013<0.0097

<0.14<0.012

<0.022<0.010

<0.011<0.0095

<0.013<0.011

<0.047<0.011

<0.012<0.010

7,800400

20,00058

1319

150M


<0.077<1.2

<0.094<0.18

<0.081<0.089

<0.076<0.10

<0.088<0.37

<0.088<0.092

<0.082780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.10

<0.077<1.2

<0.094<0.18

<0.081<0.089

<0.076<0.10

<0.088<0.37

<0.088<0.092

<0.08285

1312,000

340.02

0.22,500

Styrene<0.052

<0.039<0.58

<0.047<0.089

<0.040<0.045

<0.038<0.050

<0.044<0.19

<0.044<0.046

<0.04116,000

1,50041,000

4304

18260

Tetrachloroethene8

<0.039550

0.2356

0.2630

<0.03818

<0.044130

0.0741.4

0.2512

112,400

280.06

0.31,075

(3)

Toluene<0.013

<0.0097<0.14

<0.012<0.022

<0.010<0.011

<0.0095<0.013

<0.011<0.047

<0.011<0.012

<0.01016,000

650410,000

4212

29290

Total Xylenes<0.052

0.047<0.58

<0.047<0.089

<0.040<0.045

<0.038<0.050

<0.044<0.19

<0.044<0.046

<0.04116,000

32041,000

5.6150

150110


<0.039<0.58

<0.047<0.089

<0.040<0.045

<0.038<0.050

<0.044<0.19

<0.044<0.046

<0.0411,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene1.8

<0.009725

<0.0120.13

<0.0100.2

<0.0095<0.013

<0.0113.8

<0.0110.085

<0.01058

51,200

120.06

0.3650

Vinyl Chloride

<0.13<0.0097

<0.14<0.012

<0.022<0.010

<0.011<0.0095

<0.013<0.011

<0.047<0.011

<0.012<0.010

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO









(2)Non-TAC

O SRO







Page of

817

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

TT-100 (6-8)

TT-100 (10-12)

TT-100 (16-18)

TT-101 (6-8)

TT-101 (12-14)

TT-101 (20-22)

TT-102 (0-2)

TT-102 (6-8)

TT-102 (10-12)

TT-102 (12-14)

TT-103 (0-2)

TT-103 (4-6)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate2/17/16

2/17/162/17/16

2/17/162/17/16

2/17/162/17/16

2/17/162/17/16

2/17/162/17/16


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

--1,200

--1,200

29.6


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

3101,800

8,2001,800

0.020.3


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

7,8001,300

200,000130

23110


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

3,900290

10,0003.0

0.060.3


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

70.4

1,4000.99

0.020.1


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<1.1

<0.940<10.0

<0.020<5.80

<5.90<1.40

<1.00<1.10

<0.020<1.60

<1.1046,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<1.1<0.940

<10.0<0.010

<5.80<5.90

<1.40<1.00

<1.10<0.0099

<1.60<1.10

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.530<0.470

<5.10<0.0050

<2.90<3.00

<0.680<0.500

<0.560<0.0049

<0.790<0.540

----

----

----

--Acetone

<1.1<0.940

<10.0<0.010

<5.80<5.90

<1.40<1.00

<1.10<0.0099

<1.60<1.10

70,000100,000

--100,000

2525

100,000Benzene

<0.053<0.047

<0.5100.0059

<0.290<0.300

<0.068<0.050

<0.056<0.00049

<0.079<0.054

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.210

<0.190<2.00

<0.0020<1.20

<1.20<0.270

<0.200<0.220

<0.0020<0.310

<0.22081

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.210

<0.190<2.00

<0.0020<1.20

<1.20<0.270

<0.200<0.220

<0.0020<0.310

<0.220110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.530<0.470

<5.10<0.0050

<2.90<3.00

<0.680<0.500

<0.560<0.0049

<0.790<0.540

7,800720

20,0009.0

32160

520C


<0.190<2.00

<0.0020<1.20

<1.20<0.270

<0.200<0.220

<0.0020<0.310

<0.2205

0.3410

0.90.07

0.33560

Chlorobenzene

<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

1,600130

4,1001.3

16.5

290C

hloroethane<0.530

<0.470<5.10

<0.0050<2.90

<3.00<0.680

<0.500<0.560

<0.0049<0.790

<0.540--

----

----

----

Chloroform

<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.530<0.470

<5.10<0.0050

<2.90<3.00

<0.680<0.500

<0.560<0.0049

<0.790<0.540

----

----

----


<0.2104.46

6.92<0.0020

1.398.23

4.84<0.200

<0.220<0.0020

9.36<0.220

7801,200

20,0001,200

0.41.1


<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.210<0.190

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.210<0.190

<2.000.0026

<1.20<1.20

<0.270<0.200

<0.220<0.0020

<0.310<0.220

7,800400

20,00058

1319

150M

ethyl Tertiary-Butyl Ether--

----

----

----

----

----

--780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.210

<0.190<2.00

<0.0020<1.20

<1.20<0.270

<0.200<0.220

<0.0020<0.310

<0.22085

1312,000

340.02

0.22,500

Styrene<0.530

<0.470<5.10

<0.0050<2.90

<3.00<0.680

<0.500<0.560

<0.0049<0.790

<0.54016,000

1,50041,000

4304

18260


2.49239

0.327195

2262.94

10.914.4

<0.00205.03

1.2312

112,400

280.06

0.31,075

(3)

Toluene<0.530

<0.470<5.10

0.0095<2.90

<3.00<0.680

<0.500<0.560

<0.0049<0.790

<0.54016,000

650410,000

4212

29290

Total Xylenes<0.210

<0.190<2.00

0.0054<1.20

<1.20<0.270

<0.200<0.220

<0.0020<0.310

<0.22016,000

32041,000

5.6150

150110


<0.190<2.00

<0.0020<1.20

<1.200.33

<0.200<0.220

<0.00202.35

<0.2201,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene0.267

0.4218.7

0.00636.16

10.20.51

<0.2000.275

<0.00203.49

<0.22058

51,200

120.06

0.3650

Vinyl Chloride

<0.2100.264

<2.00<0.0020

<1.20<1.20

<0.270<0.200

<0.220<0.0020

3.94<0.220

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO









(2)Non-TAC

O SRO







Page of

917

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

TT-104 (0-2)

TT-104 (6-8)

TT-104 (14-16)

TT-105 (0-2)

TT-105 (6-8)

TT-106 (2-4)

TT-106 (4-6)

TT-107 (2-4)

TT-107 (6-8)

TT-108 (0-2)

TT-108 (6-8)

TT-108 (12-14)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate2/18/16

2/18/162/18/16

2/18/162/18/16

2/18/162/18/16

2/18/162/18/16

2/18/162/18/16


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

--1,200

--1,200

29.6


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

3101,800

8,2001,800

0.020.3


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

7,8001,300

200,000130

23110


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

3,900290

10,0003.0

0.060.3


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

70.4

1,4000.99

0.020.1


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.025

<0.970<1.20

<0.025<1.90

<1.40<1.10

<1.20<1.00

<0.024<0.020

<0.02046,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.012<0.970

<1.20<0.012

<1.90<1.40

<1.10<1.20

<1.00<0.012

<0.0099<0.0098

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.0062<0.480

<0.590<0.0062

<0.950<0.710

<0.540<0.610

<0.520<0.0060

<0.0050<0.0049

----

----

----

--Acetone

0.045<0.970

<1.200.0747

<1.90<1.40

<1.10<1.20

<1.000.154

<0.0099<0.0098

70,000100,000

--100,000

2525

100,000Benzene

<0.00062<0.048

<0.059<0.00062

<0.095<0.071

<0.054<0.061

<0.0520.0015

0.00430.00067

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.0025

<0.190<0.230

<0.0025<0.380

<0.290<0.210

<0.240<0.210

<0.0024<0.0020

<0.002081

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.0025

<0.190<0.230

<0.0025<0.380

<0.290<0.210

<0.240<0.210

<0.0024<0.0020

<0.0020110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.0062<0.480

<0.590<0.0062

<0.950<0.710

<0.540<0.610

<0.5200.0099

<0.0050<0.0049

7,800720

20,0009.0

32160

520C


<0.190<0.230

<0.0025<0.380

<0.290<0.210

<0.240<0.210

<0.0024<0.0020

<0.00205

0.3410

0.90.07

0.33560

Chlorobenzene

<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

1,600130

4,1001.3

16.5

290C

hloroethane<0.0062

<0.480<0.590

<0.0062<0.950

<0.710<0.540

<0.610<0.520

<0.0060<0.0050

<0.0049--

----

----

----

Chloroform

<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.0062<0.480

<0.590<0.0062

<0.950<0.710

<0.540<0.610

<0.520<0.0060

<0.0050<0.0049

----

----

----


<0.0025<0.190

<0.2300.0163

<0.3800.712

<0.21011.2

<0.210<0.0024

<0.0020<0.0020

7801,200

20,0001,200

0.41.1


<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.0025<0.190

<0.230<0.0025

<0.380<0.290

<0.210<0.240

<0.210<0.0024

<0.0020<0.0020

7,800400

20,00058

1319

150M


----

----

----

----

----

--780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.0025

<0.190<0.230

<0.0025<0.380

<0.290<0.210

<0.240<0.210

<0.0024<0.0020

<0.002085

1312,000

340.02

0.22,500

Styrene<0.0062

<0.480<0.590

<0.0062<0.950

<0.710<0.540

<0.610<0.520

<0.0060<0.0050

<0.004916,000

1,50041,000

4304

18260


0.671<0.230

<0.002552.1

2.780.87

21.32.39

<0.00240.002

<0.002012

112,400

280.06

0.31,075

(3)

Toluene<0.0062

<0.480<0.059

<0.0062<0.950

<0.710<0.540

<0.610<0.520

<0.00600.0066

<0.004916,000

650410,000

4212

29290

Total Xylenes<0.0025

<0.190<0.230

<0.0025<0.380

<0.290<0.210

<0.240<0.210

<0.00240.0041

<0.002016,000

32041,000

5.6150

150110


<0.190<0.230

0.0087<0.380

<0.290<0.210

0.909<0.210

<0.0024<0.0020

<0.00201,600

3,10041,000

3,1000.7

3.42,100


<0.190<0.230

0.00340.579

0.892<0.210

6.8<0.210

<0.0024<0.0020

<0.002058

51,200

120.06

0.3650

Vinyl Chloride

<0.0025<0.190

<0.2300.0114

<0.380<0.290

<0.2100.823

<0.210<0.0024

<0.0020<0.0020

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO






"<" indicates not detected at stated detection lim



(2)Non-TAC

O SRO







Page of

1017

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

TT-109 (0-2)

TT-109 (6-8)

TT-110 (0-2)

TT-110 (6-8)

TT-110 (16-18)

TT-111 (0-2)

TT-111 (6-8)

TT-111 (14-16)

TT-112 (0-2)

TT-112 (6-8)

TT-113 (0-2)

TT-113 (4-6)

TT-113 (10-12)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate2/18/16

2/18/162/19/16

2/19/162/19/16

2/19/162/19/16

2/19/162/19/16

2/19/162/22/16

2/22/162/22/16


<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

--1,200

--1,200

29.6


<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00214.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

3101,800

8,2001,800

0.020.3


<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00217,800

1,300200,000

13023

1101,400


<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

3,900290

10,0003.0

0.060.3


<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00217

0.41,400

0.990.02

0.11,900


<0.0020<0.0022

<0.0019<0.0032

<0.00221.47

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.021

<0.020<0.022

<0.019<0.032

<0.022<5.30

<0.018<0.026

<1.10<1.30

<1.00<0.011

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.010

<0.0099<0.011

<0.0096<0.016

<0.011<5.30

<0.0088<0.013

<1.10<1.30

<1.00<0.011

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.0052<0.0049

<0.0054<0.0048

<0.0080<0.0055

<2.70<0.0044

<0.0066<0.530

<0.650<0.510

<0.0053--

----

----

----

Acetone0.0748

<0.00990.0557

<0.0096<0.016

0.0396<5.30

<0.00880.161

<1.10<1.30

<1.000.013

70,000100,000

--100,000

2525

100,000Benzene

<0.000520.0034

<0.000540.0029

0.003<0.00055

<0.270<0.00044

0.00072<0.053

<0.065<0.051

<0.0005312

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.0021

<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.0021

<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.0021110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.0052<0.0049

<0.0054<0.0048

<0.0080<0.0055

<2.70<0.0044

<0.0066<0.530

<0.650<0.510

<0.00537,800

72020,000

9.032

160520


<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00215

0.3410

0.90.07

0.33560

Chlorobenzene

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00211,600

1304,100

1.31

6.5290

Chloroethane

<0.0052<0.0049

<0.0054<0.0048

<0.0080<0.0055

<2.70<0.0044

<0.0066<0.530

<0.650<0.510

<0.0053--

----

----

----

Chloroform

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.0021100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.0052

<0.0049<0.0054

<0.0048<0.0080

<0.0055<2.70

<0.0044<0.0066

<0.530<0.650

<0.510<0.0053

----

----

----


<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.0021780

1,20020,000

1,2000.4

1.11,000


<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00211,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.0021

<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

7,800400

20,00058

1319

150M


----

----

----

----

----

----

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.002185

1312,000

340.02

0.22,500

Styrene<0.0052

<0.0049<0.0054

<0.0048<0.0080

<0.0055<2.70

<0.0044<0.0066

<0.530<0.650

<0.510<0.0053

16,0001,500

41,000430

418


<0.00210.0053

0.00390.0751

0.03050.0103

121<0.0018

0.1346

0.9051.7

<0.002112

112,400

280.06

0.31,075

(3)

Toluene<0.0052

<0.0049<0.0054

<0.0048<0.0080

<0.0055<2.70

<0.0044<0.0066

<0.530<0.650

<0.510<0.0053

16,000650

410,00042

1229

290Total Xylenes

<0.00210.0023

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.002116,000

32041,000

5.6150

150110


<0.0020<0.0022

<0.0019<0.0032

<0.0022<1.10

<0.0018<0.0026

<0.210<0.260

<0.200<0.0021

1,6003,100

41,0003,100

0.73.4


<0.0021<0.0020

<0.00220.0021

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.002158

51,200

120.06

0.3650

Vinyl Chloride

<0.0021<0.0020

<0.0022<0.0019

<0.0032<0.0022

<1.10<0.0018

<0.0026<0.210

<0.260<0.200

<0.00210.46

0.28170

1.10.01

0.072,600











(2)Non-TAC

O SRO







Page of

1117

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

TT-114 (0-2)

TT-114 (4-6)

TT-114 (10-12)

TT-115 (2-4)

TT-115 (6-8)

TT-115A (8-10)

TT-115A (10-12)

TT-116 (0-2)

TT-116 (6-8)

TT-116 (10-12)

TT-117 (0-2)

TT-117 (6-8)

TT-117 (10-12)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate2/22/16

2/22/162/22/16

2/22/162/22/16

2/22/162/22/16

2/22/162/22/16

2/22/162/22/16

2/22/162/22/16


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

--1,200

--1,200

29.6


<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00184.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

3101,800

8,2001,800

0.020.3


<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00187,800

1,300200,000

13023

1101,400


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

3,900290

10,0003.0

0.060.3


<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00187

0.41,400

0.990.02

0.11,900


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<1.30

<1.20<0.0093

<0.010<1.10

<10.0<1.20

<1.30<1.10

<0.0096<1.40

<1.10<0.0089

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<1.30

<1.20<0.0093

<0.010<1.10

<10.0<1.20

<1.30<1.10

<0.0096<1.40

<1.10<0.0089

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.670<0.610

<0.0047<0.0052

<0.570<5.00

<0.580<0.650

<0.540<0.0048

<0.710<0.540

<0.0045--

----

----

----

Acetone<1.30

<1.200.0285

0.0113<1.10

<10.0<1.20

<1.30<1.10

<0.0096<1.40

<1.100.0118

70,000100,000

--100,000

2525

100,000Benzene

<0.067<0.061

<0.000470.0029

<0.057<0.500

<0.058<0.065

<0.054<0.00048

<0.071<0.054

<0.0004512

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.270

<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.270

<0.240<0.0018

<0.0019<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.0018110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.670<0.610

<0.0047<0.0052

<0.570<5.00

<0.580<0.650

<0.540<0.0048

<0.710<0.540

<0.00457,800

72020,000

9.032

160520


<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00185

0.3410

0.90.07

0.33560

Chlorobenzene

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00181,600

1304,100

1.31

6.5290

Chloroethane

<0.670<0.610

<0.0047<0.0052

<0.570<5.00

<0.580<0.650

<0.540<0.0048

<0.710<0.540

<0.0045--

----

----

----

Chloroform

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.0018100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.670

<0.610<0.0047

<0.0052<0.570

<5.00<0.580

<0.650<0.540

<0.0048<0.710

<0.540<0.0045

----

----

----


<0.270<0.240

<0.0019<0.0021

1.56105

0.25<0.260

<0.220<0.0019

<0.280<0.220

<0.0018780

1,20020,000

1,2000.4

1.11,000


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00181,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.270

<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

7,800400

20,00058

1319

150M


----

----

----

----

----

----

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.001885

1312,000

340.02

0.22,500

Styrene<0.670

<0.610<0.0047

<0.0052<0.570

<5.00<0.580

<0.650<0.054

<0.0048<0.710

<0.540<0.0045

16,0001,500

41,000430

418


3.662.83

0.01580.0605

20.5224

2.633.5

16.4<0.0019

15.331.7

0.005412

112,400

280.06

0.31,075

(3)

Toluene<0.670

<0.610<0.0047

<0.0052<0.570

<5.00<0.580

<0.650<0.054

<0.0048<0.710

<0.540<0.0045

16,000650

410,00042

1229

290Total Xylenes

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.001816,000

32041,000

5.6150

150110


<0.240<0.0019

<0.0021<0.230

<2.00<0.230

<0.260<0.220

<0.0019<0.280

<0.220<0.0018

1,6003,100

41,0003,100

0.73.4


<0.270<0.240

<0.0019<0.0021

1.2828.9

<0.230<0.260

<0.220<0.0019

<0.2800.548

<0.001858

51,200

120.06

0.3650

Vinyl Chloride

<0.270<0.240

<0.0019<0.0021

<0.230<2.00

<0.230<0.260

<0.220<0.0019

<0.280<0.220

<0.00180.46

0.28170

1.10.01

0.072,600











(2)Non-TAC

O SRO







Page of

1217

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B6001 (0-2.5)

B6002 (0-2.5)

B6002 (5-7.5)

B6002 (10-12.5)

B6002 (12.5-15)

B6003 (0-2.5)

B6004 (0-2.5)

B6005 (0-2.5)

B6005 (5-7.5)

B6006 (0-2.5)

B6007 (2.5-5)

B6008 (5-7.5)

B6008 (10-12.5)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate8/24/19

8/24/198/24/19

9/5/199/5/19

8/24/198/24/19

8/24/198/24/19

8/24/198/24/19

8/24/198/24/19


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

--1,200

--1,200

29.6


<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007894.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

3101,800

8,2001,800

0.020.3


<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007897,800

1,300200,000

13023

1101,400


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

3,900290

10,0003.0

0.060.3


<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007897

0.41,400

0.990.02

0.11,900


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.00984

<0.819<0.00868

<199<0.00723

<0.0101<0.571

<0.00928<1.63

<0.626<0.505

<0.623<0.00789

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.0246

<2.05<0.0217

<499<0.0181

<0.0253<1.43

<0.0232<4.07

<1.57<1.26

<1.56<0.0197

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.0246<2.05

<0.0217<499

<0.0181<0.0253

<1.43<0.0232

<4.07<1.57

<1.26<1.56

<0.0197--

----

----

----

Acetone<0.0246

<2.05<0.0217

<499<0.0181

<0.0253<1.43

<0.0232<4.07

<1.57<1.26

<1.56<0.0197

70,000100,000

--100,000

2525

100,000Benzene

<0.000246<0.0205

<0.000868<4.99

<0.000181<0.000253

<0.0143<0.000232

<0.0407<0.0157

<0.0126<0.0156

<0.00019712

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.000984

<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.000984

<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0689

<0.0505<0.0623

<0.000789110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.000984<0.0819

<0.000868<19.9

0.00130<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007897,800

72020,000

9.032

160520


<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007895

0.3410

0.90.07

0.33560

Chlorobenzene

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007891,600

1304,100

1.31

6.5290

Chloroethane

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.000789--

----

----

----

Chloroform

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.000789100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.000984

<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

----

----

----


<0.000984<0.0819

<0.000868<19.9

<0.0007230.00478

0.272<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.000789780

1,20020,000

1,2000.4

1.11,000


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007891,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.000984

<0.08190.00202

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

7,800400

20,00058

1319

150M


<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.00492<0.409

<0.00434<99.7

<0.00361<0.00506

<0.285<0.00464

<0.815<0.313

<0.253<0.312

<0.0039585

1312,000

340.02

0.22,500

Styrene<0.000984

<0.0819<0.000868

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

16,0001,500

41,000430

418


0.003074.94

0.1134,540

0.03920.851

7.220.783

5.151.08

2.598.43

<0.0015812

112,400

280.06

0.31,075

(3)

Toluene<0.000984

<0.08190.00704

<19.9<0.000723

<0.00101<0.0571

<0.000928<0.163

<0.0626<0.0505

<0.06230.000931

16,000650

410,00042

1229

290Total Xylenes

<0.00197<0.164

0.0127<39.9

<0.00145<0.00202

<0.114<0.00186

<0.326<0.125

<0.101<0.125

0.0021516,000

32041,000

5.6150

150110


<0.0819<0.000868

<19.9<0.000723

0.001520.0610

<0.000928<0.163

<0.0626<0.0505

<0.0623<0.000789

1,6003,100

41,0003,100

0.73.4


<0.0009840.143

0.00310111

0.0008970.0194

1.020.00153

<0.163<0.0626

0.0607<0.0623

<0.00078958

51,200

120.06

0.3650

Vinyl Chloride

<0.000984<0.0819

<0.000868<19.9

<0.000723<0.00101

<0.0571<0.000928

<0.163<0.0626

<0.0505<0.0623

<0.0007890.46

0.28170

1.10.01

0.072,600








ost stringent Tier 1 SROSam

ples within bold outline w

ere within the treatm

ent zone; see Table No. 3 for the confirmation soil sam

ple results"<" indicates not detected at stated detection lim



(2)Non-TAC

O SRO







Page of

1317

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B6009 (7.5-10)

B6009 (12.5-15)

B6010 (2.5-5)

B6010 (5-7.5)

B6011 (7.5-10)

B6011 (12.5-15)

B6012 (7.5-10)

B6012 (12.5-15)

B6013 (10-12.5)

B6013 (12.5-15)

B6014 (7.5-10)

B6014 (10-12.5)

B6015 (7.5-10)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate8/24/19

8/24/199/5/19

9/5/199/5/19

9/5/199/5/19

9/5/199/5/19

9/5/199/5/19

9/5/199/5/19


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

--1,200

--1,200

29.6


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.064.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

3101,800

8,2001,800

0.020.3


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.067,800

1,300200,000

13023

1101,400


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

3,900290

10,0003.0

0.060.3


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.067

0.41,400

0.990.02

0.11,900


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<4.88

<0.00864<2.14

<0.560<22.0

<0.00854<19.7

<0.00807<0.446

<0.00813<8.03

<0.0225<10.6

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<12.2

<0.0216<5.36

<1.40<55.0

<0.0214<49.3

<0.0202<1.11

<0.0203<20.1

<0.0562<26.5

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<12.2<0.0216

<5.36<1.40

<55.0<0.0214

<49.3<0.0202

<1.11<0.0203

<20.1<0.0562

<26.5--

----

----

----

Acetone<12.2

<0.0216<5.36

<1.40<55.0

<0.0214<49.3

<0.0202<1.11

<0.0203<20.1

<0.0562<26.5

70,000100,000

--100,000

2525

100,000Benzene

<0.122<0.000216

<0.0536<0.0140

<0.550<0.000214

<0.493<0.000202

<0.0111<0.000203

<0.201<0.000562

<0.26512

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.488

<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.488

<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.06110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.4880.000942

<0.214<0.0560

<2.200.00129

<1.970.00111

<0.0446<0.000813

<0.8030.00757

<1.067,800

72020,000

9.032

160520


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.065

0.3410

0.90.07

0.33560

Chlorobenzene

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.061,600

1304,100

1.31

6.5290

Chloroethane

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.06--

----

----

----

Chloroform

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.06100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.488

<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

----

----

----


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.06780

1,20020,000

1,2000.4

1.11,000


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.061,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.488

<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

7,800400

20,00058

1319

150M


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<2.44<0.00432

<1.07<0.280

<11.0<0.00427

<9.86<0.00404

<0.223<0.00407

<4.01<0.0112

<5.3085

1312,000

340.02

0.22,500

Styrene<0.488

<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

16,0001,500

41,000430

418


29.40.0107

18.43.46

2390.0239

3540.00747

1.070.0108

1180.042

11012

112,400

280.06

0.31,075

(3)

Toluene<0.488

0.000985<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

16,000650

410,00042

1229

290Total Xylenes

<0.9770.00258

<0.428<0.112

<4.40<0.00171

<3.94<0.00161

<0.0892<0.00163

<1.61<0.0450

<2.1216,000

32041,000

5.6150

150110


<0.000864<0.214

<0.0560<2.20

<0.000854<1.97

<0.000807<0.0446

<0.000813<0.803

<0.00225<1.06

1,6003,100

41,0003,100

0.73.4


<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.0658

51,200

120.06

0.3650

Vinyl Chloride

<0.488<0.000864

<0.214<0.0560

<2.20<0.000854

<1.97<0.000807

<0.0446<0.000813

<0.803<0.00225

<1.060.46

0.28170

1.10.01

0.072,600











(2)Non-TAC

O SRO







Page of

1417

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B6016 (10-12.5)

B6016 (12.5-15)

B6016 (17.5-20)

B6017 (10-12.5)

B6017 (12.5-15)

B6018 (0-2.5)

B6018 (2.5-5)

B6018 (5-7.5)

B6018 (10-12.5)

B6018 (12.5-15)

B6019 (10-12.5)

B6019 (12.5-15)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate6/25/20

6/25/206/25/20

6/25/206/25/20

6/25/206/25/20

6/25/206/25/20

6/25/206/25/20


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

--1,200

--1,200

29.6


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

3101,800

8,2001,800

0.020.3


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

7,8001,300

200,000130

23110


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

0.397<0.0517

<0.0501<0.0425

3,900290

10,0003.0

0.060.3


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

70.4

1,4000.99

0.020.1


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<40.4

<0.0561<0.00706

<6.14<0.395

<0.398<0.00770

<0.00786<3.93

<0.517<0.501

<0.42546,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<101<0.140

<0.0176<15.3

<0.986<0.994

<0.0192<0.0196

<9.82<1.29

<1.25<1.06

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<101<0.140

<0.0176<15.3

<0.986<0.994

<0.0192<0.0196

<9.82<1.29

<1.25<1.06

----

----

----

--Acetone

<101<0.140

<0.0176<15.3

<0.986<0.994

<0.0192<0.0196

<9.82<1.29

<1.25<1.06

70,000100,000

--100,000

2525

100,000Benzene

<1.01<0.00140

0.000219<0.153

<0.00986<0.00994

<0.000192<0.000196

0.872<0.0129

0.880<0.0106

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

103,000

2,0003,000

0.60.6

2,000Brom

oform<4.04

<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.042581

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<4.04

<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.0425110

101,000

3.90.2

1.23,100

Carbon Disulfide

<4.040.0108

0.000861<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.3930.0553

<0.0501<0.0425

7,800720

20,0009.0

32160

520C


<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.04255

0.3410

0.90.07

0.33560

Chlorobenzene

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

1,600130

4,1001.3

16.5

290C

hloroethane<4.04

<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.0425--

----

----

----

Chloroform

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

----

----

----


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.0007700.000896

37.8<0.0517

6.24<0.0425

7801,200

20,0001,200

0.41.1


<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

<0.393<0.0517

<0.0501<0.0425

7,800400

20,00058

1319

150M


<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.0425780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<20.2

<0.0280<0.00353

<3.07<0.197

<0.199<0.00385

<0.00393<1.96

<0.258<0.250

<0.21285

1312,000

340.02

0.22,500

Styrene<4.04

<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.000786<0.393

<0.0517<0.0501

<0.042516,000

1,50041,000

4304

18260

Tetrachloroethene187

0.0523<0.00141

56.40.110

0.08710.0551

0.11329.7

<0.103<0.100

<0.085012

112,400

280.06

0.31,075

(3)

Toluene<4.04

<0.00561<0.000706

<0.614<0.0395

<0.03980.000777

0.00107<0.393

<0.0517<0.0501

<0.042516,000

650410,000

4212

29290

Total Xylenes<8.08

<0.0112<0.00141

<1.23<0.0789

<0.0795<0.00154

<0.00157<0.786

<0.103<0.100

0.085416,000

32041,000

5.6150

150110


<0.00561<0.000706

<0.614<0.0395

<0.0398<0.000770

<0.0007860.719

<0.05170.0521

<0.04251,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene8.49

<0.00561<0.000706

2.87<0.0395

<0.03980.00650

0.0098541.9

<0.05170.0511

<0.042558

51,200

120.06

0.3650

Vinyl Chloride

<4.04<0.00561

<0.000706<0.614

<0.0395<0.0398

<0.000770<0.000786

2.24<0.0517

7.20<0.0425

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO









(2)Non-TAC

O SRO







Page of

1517

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B6020 (7.5-10)

B6020 (10-12.5)

B6020 (12.5-15)

B6021 (10-12.5)

B6022 (10-12.5)

B6023 (10-12.5)

B6024 (0-2.5)

B6024 (2.5-5)

B6024 (5-7.5)

B6025 (0-2.5)

B6025 (2.5-5)

B6025 (5-7.5)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate6/26/20

6/25/206/26/20

6/25/206/25/20

6/25/206/26/20

6/26/206/26/20

6/26/206/26/20


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

--1,200

--1,200

29.6


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

3101,800

8,2001,800

0.020.3


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

7,8001,300

200,000130

23110


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

3,900290

10,0003.0

0.060.3


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

70.4

1,4000.99

0.020.1


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.00977

<45.6<0.546

<35.9<42.2

<0.384<0.00819

<0.00801<4.42

<0.479<0.436

<4.0146,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.0244<114

<1.37<89.9

<106<0.960

<0.0205<0.0200

<11.0<1.20

<1.09<10.0

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.0244<114

<1.37<89.9

<106<0.960

<0.0205<0.0200

<11.0<1.20

<1.09<10.0

----

----

----

--Acetone

<0.0244<114

<1.37<89.9

<106<0.960

<0.0205<0.0200

<11.0<1.20

<1.09<10.0

70,000100,000

--100,000

2525

100,000Benzene

<0.000244<1.14

<0.0137<0.899

<1.06<0.00960

<0.000205<0.000200

<0.110<0.0120

<0.0109<0.100

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.000977

<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.40181

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.000977

<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.401110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

7,800720

20,0009.0

32160

520C


<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.4015

0.3410

0.90.07

0.33560

Chlorobenzene

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

1,600130

4,1001.3

16.5

290C

hloroethane<0.000977

<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.401--

----

----

----

Chloroform

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

----

----

----


0.000996<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.04361.16

7801,200

20,0001,200

0.41.1


<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

7,800400

20,00058

1319

150M


<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.401780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.00488

<22.8<0.273

<18.0<21.1

<0.192<0.00410

<0.00401<2.21

<0.240<0.218

<2.0085

1312,000

340.02

0.22,500

Styrene<0.000977

<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.40116,000

1,50041,000

4304

18260


1,3301.59

1,080115

4.341.05

1.8633.7

0.7880.758

38.012

112,400

280.06

0.31,075

(3)

Toluene0.00120

<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.40116,000

650410,000

4212

29290


<9.12<0.109

<7.19<8.45

<0.0768<0.00164

<0.00160<0.883

<0.0959<0.0873

<0.80116,000

32041,000

5.6150

150110


<4.56<0.0546

<3.59<4.22

<0.0384<0.000819

<0.000801<0.442

<0.0479<0.0436

<0.4011,600

3,10041,000

3,1000.7

3.42,100


8.16<0.0546

10.3<4.22

0.07100.00288

0.00598<0.442

<0.0479<0.0436

1.7458

51,200

120.06

0.3650

Vinyl Chloride

<0.000977<4.56

<0.0546<3.59

<4.22<0.0384

<0.000819<0.000801

<0.442<0.0479

<0.0436<0.401

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO






Samples w







(2)Non-TAC

O SRO







Page of

1617

TABLE NO

. 1 Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-

Specific Soil

Saturation Lim

it (1) C

sat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

B6026 (0-2.5)

B6026 (2.5-5)

B6026 (5-7.5)

B6027 (0-3)

B6027 (12.5-15)

B6028 (0-3)

B6028 (12.5-15)

B6029 (10-12.5)

B6030 (10-12.5)

B6031 (10-12.5)

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

Collection D

ate6/26/20

6/26/206/26/20

6/26/206/26/20

6/26/206/26/20

6/26/206/26/20


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

--1,200

--1,200

29.6


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

3101,800

8,2001,800

0.020.3


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

7,8001,300

200,000130

23110


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

3,900290

10,0003.0

0.060.3


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

70.4

1,4000.99

0.020.1


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

0.00356<0.00497

915

1,8000.50

0.030.15

8702-Butanone (M

EK)<0.00904

<0.00794<0.460

<0.933<0.00850

<0.470<0.00726

<0.0527<0.0213

<0.049746,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<0.0226<0.0198

<1.15<2.33

<0.0213<1.17

<0.0181<0.132

<0.0533<0.124

391(2)

459(2)

1,020(2)

4.73(2)

0.225(2)

0.225(2)

--4-M


<0.0226<0.0198

<1.15<2.33

<0.0213<1.17

<0.0181<0.132

<0.0533<0.124

----

----

----

--Acetone

<0.0226<0.0198

<1.15<2.33

<0.0213<1.17

<0.0181<0.132

<0.0533<0.124

70,000100,000

--100,000

2525

100,000Benzene

0.000226<0.000198

<0.0115<0.0233

<0.000213<0.0117

<0.000181<0.00132

<0.000533<0.00124

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

103,000

2,0003,000

0.60.6

2,000Brom

oform<0.000904

<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.0049781

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.000904

<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.00497110

101,000

3.90.2

1.23,100

Carbon Disulfide

<0.0009040.00125

<0.0460<0.0933

0.00150<0.0470

0.001020.00696

0.005610.0123

7,800720

20,0009.0

32160

520C


<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.004975

0.3410

0.90.07

0.33560

Chlorobenzene

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

1,600130

4,1001.3

16.5

290C

hloroethane<0.000904

<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.00497--

----

----

----

Chloroform

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.002130.00502

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

----

----

----


0.005260.00183

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.002130.0585

7801,200

20,0001,200

0.41.1


<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

6.41.1

1,2000.39

0.0040.02

850Dibrom

ochloromethane

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

0.000958<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

7,800400

20,00058

1319

150M


<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.00497780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.00452

<0.00397<0.230

<0.467<0.00425

<0.235<0.00363

<0.0264<0.0107

<0.024985

1312,000

340.02

0.22,500

Styrene<0.000904

<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.0049716,000

1,50041,000

4304

18260


0.03171.90

0.609<0.00170

0.453<0.00145

<0.0105<0.00427

0.29712

112,400

280.06

0.31,075

(3)

Toluene0.00155

<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

<0.0049716,000

650410,000

4212

29290

Total Xylenes0.00306

<0.00159<0.0921

<0.187<0.00170

<0.0939<0.00145

<0.0105<0.00427

<0.0099516,000

32041,000

5.6150

150110


<0.000794<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

0.009101,600

3,10041,000

3,1000.7

3.42,100


0.00556<0.0460

<0.0933<0.000850

<0.0470<0.000726

<0.00527<0.00213

0.0076658

51,200

120.06

0.3650

Vinyl Chloride

<0.000904<0.000794

<0.0460<0.0933

<0.000850<0.0470

<0.000726<0.00527

<0.00213<0.00497

0.460.28

1701.1

0.010.07

2,600N


illion)Tier 1 SRO









(2)Non-TAC

O SRO







Page of

1717

TABLE NO

. 2 G

roundwater Sam


Cs

7601-7621 Lake Street / River Forest, Illinois

Tier 1 Groundw

ater Rem

ediation O

bjectives (Tier 1 GR

Os)

Sample ID

MW

600M

W600

MW

-600M

W900

MW

900M

W-900

MW

900M

W1000

MW

1000M

W-1000

MW

1000M

W1300

MW

-1300M

W1300

MW

1300M

W1600

MW

1600M

W-1600

MW

1600C

lass IC

lass IIIndoor

Inhalation - R

esidential C

ollection Date

12/12/014/1/09

9/29/1012/12/01

4/1/099/29/10

9/5/1912/12/01

4/1/099/29/10

2/19/164/1/09

9/29/102/19/16

9/5/1910/6/05

4/1/099/29/10


<0.00029<0.0010

<0.0010<0.00029

<0.0010<0.0010

<0.00100<0.00029

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.2

11,000

1,1,2,2-Tetrachloroethane<0.001

<0.0010<0.0010

<0.001<0.0010

<0.0010<0.00100

<0.001<0.010

<0.10<0.00050

<0.0010<0.0010

<0.00050<0.00100

<0.005<0.0010

<0.0010<0.00100

0.00043(1)

0.00043(1)


<0.00056<0.0010

<0.0010<0.00056

<0.0010<0.0010

<0.00100<0.00056

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.054,400

1,1-Dichloroethane<0.00034

<0.0010<0.0010

<0.00034<0.0010

<0.0010<0.00100

<0.00034<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.73.5

1801,1-Dichloroethene

<0.00036<0.0010

<0.0010<0.00036

<0.0010<0.0010

<0.00100<0.00036

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.007

0.03524

1,2-Dibromo-3-chloropropane

----

----

----

<0.00100--

----

----

----

<0.00100--

----

<0.001000.0002

0.0020.00065

1,2-Dibromoethane

----

----

----

<0.00100--

----

----

----

<0.00100--

----

<0.001000.00005

0.00050.0035


<0.0010<0.0010

<0.00039<0.0010

<0.0010<0.00100

<0.00039<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.0050.025

0.0541,2-Dichloropropane

<0.00027<0.0010

<0.0010<0.00027

<0.0010<0.0010

<0.00100<0.00027

<0.010<0.10

<0.0020<0.0010

<0.0010<0.0020

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.0250.12

p-Dioxane(2)

----

----

----

<0.100--

----

----

----

<0.100--

----

<0.1000.00085

(1)0.00085

(1)2.9

2-Butanone (MEK) (2)

<0.0017<0.0050

<0.0050<0.0017

<0.0050<0.0050

<0.0100<0.0017

<0.050<0.50

<0.010<0.0050

<0.0050<0.010

<0.0100<0.01

<0.0050<0.0050

<0.01004.2

(1)4.2

(1)10,000

2-Hexanone<0.00015

<0.0050<0.0050

<0.00015<0.0050

<0.0050<0.0250

<0.00015<0.050

<0.50<0.010

<0.0050<0.0050

<0.010<0.0250

<0.01<0.0050

<0.0050<0.0250

0.035(1)

0.035(1)

--4-M


<0.00088<0.0050

<0.0050<0.00088

<0.0050<0.0050

<0.0250<0.00088

<0.050<0.50

<0.0050<0.0050

<0.0050<0.0050

<0.0250<0.01

<0.0050<0.0050

<0.0250--

----

Acetone<0.002

<0.0050<0.0050

<0.002<0.0050

<0.0050<0.0250

0.0024 J<0.050

<0.50<0.010

<0.0050<0.0050

<0.010<0.0250

<0.01<0.0050

<0.0050<0.0250

6.36.3

1,000,000Benzene

<0.00025<0.0010

<0.0010<0.00025

<0.0010<0.0010

<0.00100<0.00025

<0.010<0.10

<0.00050<0.0010

<0.0010<0.00050

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.0250.11

Bromodichlorom

ethane<0.00021

<0.0010<0.0010

<0.00021<0.0010

<0.0010<0.00100

<0.00021<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.00020.0002

6,700Brom

oform<0.00056

<0.0010<0.0010

<0.00056<0.0010

<0.0010<0.00100

<0.00056<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.0010.001

3.1Brom

omethane (M

ethyl Bromide)

<0.00027<0.0010

<0.0010<0.00027

<0.0010<0.0010

<0.00100<0.00027

<0.010<0.10

<0.0020<0.0010

<0.0010<0.0020

<0.00100<0.01

<0.0010<0.0010

<0.001000.0098

0.0491.5

Carbon Disulfide<0.0006

<0.0050<0.0050

<0.0006<0.0050

<0.0050<0.00100

<0.0006<0.050

<0.50<0.0050

<0.0050<0.0050

<0.0050<0.00100

<0.005<0.0050

<0.0050<0.00100

0.73.5

67Carbon Tetrachloride

<0.00033<0.0010

<0.0010<0.00033

<0.0010<0.0010

<0.00100<0.00033

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.0250.02

Chlorobenzene<0.00021

<0.0010<0.0010

<0.00021<0.0010

<0.0010<0.00100

<0.00021<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.10.5

26Chloroethane

<0.00024<0.0010

<0.0010<0.00024

<0.0010<0.0010

<0.00100<0.00024

<0.010<0.10

<0.0020<0.0010

<0.0010<0.0020

<0.00100<0.01

<0.0010<0.0010

<0.00100--

----

Chloroform<0.00032

<0.0010<0.0010

<0.00032<0.0010

<0.0010<0.00100

<0.00032<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.00020.001

0.07Chlorom

ethane<0.00024

<0.0010<0.0010

<0.00024<0.0010

<0.0010<0.00100

<0.00024<0.010

<0.10<0.0020

<0.0010<0.0010

<0.00200.00145

<0.01<0.0010

<0.0010<0.00100

----


0.003 J0.0073

0.12<0.001

<0.0010<0.0010

<0.001000.034

0.320.69

0.173<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.07

0.23,500


<0.0010<0.0010

<0.00031<0.0010

<0.0010<0.00100

<0.00031<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.001<0.0010

<0.0010<0.00100

0.0010.005

0.14Dibrom

ochloromethane

<0.00026<0.0010

<0.0010<0.00026

<0.0010<0.0010

<0.00100<0.00026

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.14

0.142,600

Dichlorodifluoromethane

(2)--

----

----

--<0.00100

----

----

----

--<0.00100

----

--<0.00100

1.4(1)

7(1)

3Ethylbenzene

<0.00012<0.0010

<0.0010<0.00012

<0.0010<0.0010

<0.00100<0.00012

<0.010<0.10

<0.0010<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.7

10.37

Isopropylbenzene (Cumene) (2)

----

----

----

<0.00100--

----

----

----

<0.00100--

----

<0.001000.7

(1)3.5

(1)2.7

Methyl Tertiary-Butyl Ether

--<0.0010

<0.0010--

<0.0010<0.0010

<0.00100--

<0.010<0.10

--<0.0010

<0.0010--

<0.00100<0.005

<0.0010<0.0010

<0.001000.07

0.071,900

Methylene Chloride

<0.00035<0.0020

<0.0020<0.00035

<0.0020<0.0020

<0.00500<0.00035

<0.020<0.20

<0.0020<0.0020

<0.0020<0.0020

<0.00500<0.005

<0.0020<0.0020

<0.005000.005

0.052.1

Naphthalene--

----

----

--<0.00200

----

----

----

--<0.00200

----

--<0.00200

0.140.22

0.075n-Butanol

----

----

----

<0.100--

----

----

----

<0.100--

----

<0.1000.7

0.774,000

m&p-Xylene

(3)--

----

----

--<0.00200

----

----

----

--<0.00200

----

--<0.00200

----

38o-Xylene

----

----

----

<0.00100--

----

----

----

<0.00100--

----

<0.00100--

--40

Styrene<0.00021

<0.0010<0.0010

<0.00021<0.0010

<0.0010<0.00100

<0.00021<0.010

<0.10<0.0050

<0.0010<0.0010

<0.0050<0.00100

<0.005<0.0010

<0.0010<0.00100

0.10.5


0.1400.28

0.140.0072

0.00760.0065

0.01320.340

1124

0.125<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.0250.091

Toluene<0.00022

<0.0010<0.0010

<0.00022<0.0010

<0.0010<0.00100

<0.00022<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

12.5

530Total Xylenes

<0.00074<0.0020

<0.0020<0.00074

<0.0020<0.0020

<0.00200<0.00074

<0.020<0.20

<0.0010<0.0020

<0.0020<0.0010

<0.00200<0.015

<0.0020<0.0020

<0.0020010

1030


0.00130.0034

<0.00023<0.0010

<0.0010<0.00100

0.00140.011

<0.100.0044

<0.0010<0.0010

<0.0010<0.00100

<0.005<0.0010

<0.0010<0.00100

0.10.5

16Trichloroethene

0.0012 J0.017

0.0240.0026

0.00160.0020

0.003690.027

0.761.1

0.018<0.0010

<0.0010<0.0010

<0.00100<0.005

<0.0010<0.0010

<0.001000.005

0.0250.34

Trichlorofluoromethane

(2)--

<0.0010--

--<0.0010

--<0.00100

--<0.010

----

<0.0010--

--<0.00100

--<0.0010

--<0.00100

2.1(1)

10.5(1)

26Vinyl Acetate

--<0.0050

----

<0.0050--

<0.0250--

<0.050--

--<0.0050

----

<0.0250--

<0.0050--

<0.02507

7160

Vinyl Chloride<0.00023

<0.0010<0.0010

<0.00023<0.0010

<0.0010<0.00100

<0.00023<0.010

<0.10<0.0010

<0.0010<0.0010

<0.0010<0.00100

<0.002<0.0010

<0.0010<0.00100

0.0020.01

0.028Notes: Results in m

g/L (parts per million)

Shaded/Bolded cell indicates value exceeds the Tier 1 GRO

Shaded/Italicized cell indicates an elevated detection limit for a confirm

ed contaminant that exceeds the Tier 1 G

RO"<" indicates not detected at stated detection lim

its"--" indicates value not availableClass I and Class II G

ROs pursuant to 35 IAC 742-Tiered Approach to Corrective Action O

bjectives (Appendix B, Table E)Indoor Inhalation G


bjectives (Appendix B, Table H, Diffusion & Advection)(1)G

ROs for Non-TACO

chemicals provided by the Illinois EPA Toxicity Assessm

ent Unit (October 24, 2018)

(2)Current TACO chem

ical for the indoor inhalation exposure route; Non-TACO chem

ical for the groundwater ingestion exposure route.

(3)The laboratory is currently unable to separate m- and p-xylenes, therefore the com

bined result is reported, and the more stringent G

RO for m

-xylene is provided for comparison.

Page of

12

TABLE NO

. 2 G

roundwater Sam


Cs

7601-7621 Lake Street / River Forest, Illinois

Tier 1 Groundw

ater Rem

ediation O

bjectives (Tier 1 GR

Os)

Sample ID

MW

-1800M

W1800

MW

-1800M

W1800

MW

1800TT-M

W-100

TT-MW

-101TT-M

W-102

TT-MW

-104TT-M

W-108

TT-MW

-111M

W-104-30’

MW

-6019M

W-6027

Class I

Class II

Indoor Inhalation - R

esidential C

ollection Date

10/6/054/1/09

9/29/102/19/16

9/5/192/17/16

2/17/162/17/16

2/18/162/18/16

2/19/167/7/20

7/7/207/7/20


<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.2

11,000


<0.0010<0.0010

<0.00050<0.00100

<0.00050<0.00050

<0.00050<0.00050

<0.00050<0.0010

<0.00100<0.0500

<0.001000.00043

(1)0.00043

(1)--


<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.005

0.054,400


<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.7

3.5180


<0.0010<0.0010

<0.0010<0.00100

0.0874<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.007

0.03524

1,2-Dibromo-3-chloropropane

----

----

<0.00100--

----

----

--<0.00100

<0.0500<0.00100

0.00020.002

0.000651,2-Dibrom

oethane--

----

--<0.00100

----

----

----

<0.00100<0.0500

<0.001000.00005

0.00050.0035


<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.005

0.0250.054


<0.0010<0.0010

<0.0020<0.00100

<0.0020<0.0020

<0.0020<0.0020

<0.0020<0.0040

<0.00100<0.0500

<0.001000.005

0.0250.12

p-Dioxane(2)

----

----

<0.100--

----

----

--<0.100

<5.00<0.100

0.00085(1)

0.00085(1)

2.92-Butanone (M

EK) (2)<0.01

<0.0050<0.0050

<0.010<0.0100

<0.010<0.010

<0.010<0.010

<0.010<0.020

<0.0100<0.500

<0.01004.2

(1)4.2

(1)10,000

2-Hexanone<0.01

<0.0050<0.0050

<0.010<0.0250

<0.010<0.010

<0.010<0.010

<0.010<0.020

<0.0250<1.25

<0.02500.035

(1)0.035

(1)--

4-Methyl-2-pentanone (M

IBK)<0.01

<0.0050<0.0050

<0.0050<0.0250

<0.0050<0.0050

<0.0050<0.0050

<0.0050<0.010

<0.0250<1.25

<0.0250--

----

Acetone<0.01

<0.0050<0.0050

<0.010<0.0250

<0.010<0.010

<0.010<0.010

<0.010<0.020

<0.0250<1.25

<0.02506.3

6.31,000,000

Benzene<0.005

<0.0010<0.0010

<0.00050<0.00100

0.0011<0.00050

<0.00050<0.00050

<0.00050<0.0010

<0.00100<0.0500

<0.001000.005

0.0250.11

Bromodichlorom

ethane<0.005

<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.0002

0.00026,700

Bromoform

<0.005<0.0010

<0.0010<0.0010

<0.00100<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

0.0010.001

3.1Brom

omethane (M

ethyl Bromide)

<0.01<0.0010

<0.0010<0.0020

<0.00100<0.0020

<0.0020<0.0020

<0.0020<0.0020

<0.0040<0.00100

<0.0500<0.00100

0.00980.049

1.5Carbon Disulfide

<0.005<0.0050

<0.0050<0.0050

<0.00100<0.0050

<0.0050<0.0050

<0.0050<0.0050

<0.010<0.00100

<0.05000.00126

0.73.5

67Carbon Tetrachloride

<0.005<0.0010

<0.0010<0.0010

<0.00100<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

0.0050.025

0.02Chlorobenzene

<0.005<0.0010

<0.0010<0.0010

<0.00100<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

0.10.5

26Chloroethane

<0.01<0.0010

<0.0010<0.0020

<0.00100<0.0020

<0.0020<0.0020

<0.0020<0.0020

<0.0040<0.00100

<0.0500<0.00100

----

--Chloroform

<0.005<0.0010

<0.0010<0.0010

<0.00100<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

0.00020.001

0.07Chlorom

ethane<0.01

<0.0010<0.0010

<0.0020<0.00100

<0.0020<0.0020

<0.0020<0.0020

<0.0020<0.0040

0.00300<0.0500

<0.00100--

----

cis-1,2-Dichloroethene<0.005

<0.0010<0.0010

<0.0010<0.00100

5.630.0794

0.0023<0.0010

<0.0010<0.0020

<0.001001.94

<0.001000.07

0.23,500


<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.001

0.0050.14

Dibromochlorom

ethane<0.005

<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.14

0.142,600

Dichlorodifluoromethane

(2)--

----

--<0.00100

----

----

----

<0.00100<0.0500

<0.001001.4

(1)7

(1)3

Ethylbenzene<0.005

<0.0010<0.0010

<0.0010<0.00100

<0.0010<0.0010

<0.0010<0.0010

<0.0010<0.0020

<0.00100<0.0500

<0.001000.7

10.37

Isopropylbenzene (Cumene) (2)

----

----

<0.00100--

----

----

--<0.00100

<0.0500<0.00100

0.7(1)

3.5(1)

2.7M


<0.0010<0.0010

--<0.00100

----

----

----

<0.00100<0.0500

<0.001000.07

0.071,900

Methylene Chloride

<0.005<0.0020

<0.0020<0.0020

<0.00500<0.0020

<0.0020<0.0020

<0.0020<0.0020

<0.0040<0.00500

<0.250<0.00500

0.0050.05

2.1Naphthalene

----

----

<0.00200--

----

----

--<0.00200

<0.100<0.00200

0.140.22

0.075n-Butanol

----

----

<0.100--

----

----

--<0.100

<5.00<0.100

0.70.7

74,000m

&p-Xylene(3)

----

----

<0.00200--

----

----

--<0.00200

<0.100<0.00200

----

38o-Xylene

----

----

<0.00100--

----

----

--<0.00100

<0.0500<0.00100

----

40Styrene

<0.005<0.0010

<0.0010<0.0050

<0.00100<0.0050

<0.0050<0.0050

<0.0050<0.0050

<0.010<0.00100

<0.0500<0.00100

0.10.5


<0.0050.0041

0.00190.0037

0.002262.14

0.3030.0529

0.0013<0.0010

<0.0020<0.00100

<0.05000.00692

0.0050.025

0.091Toluene

<0.005<0.0010

<0.0010<0.0010

<0.00100<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

12.5

530Total Xylenes

<0.015<0.0020

<0.0020<0.0010

<0.00200<0.0010

<0.0010<0.0010

<0.0010<0.0010

<0.0020<0.00200

<0.100<0.00200

1010

30trans-1,2-Dichloroethene

<0.005<0.0010

<0.0010<0.0010

<0.001000.101

0.002<0.0010

<0.0010<0.0010

<0.0020<0.00100

<0.0500<0.00100

0.10.5

16Trichloroethene

<0.0050.0016

<0.0010<0.0010

<0.001001.41

0.04270.0026

<0.0010<0.0010

<0.0020<0.00100

0.321<0.00100

0.0050.025

0.34Trichlorofluorom

ethane(2)

--<0.0010

----

<0.00100--

----

----

--<0.00100

<0.0500<0.00100

2.1(1)

10.5(1)

26Vinyl Acetate

--<0.0050

----

<0.0250--

----

----

--<0.0250

<1.25<0.0250

77

160Vinyl Chloride

<0.002<0.0010

<0.0010<0.0010

<0.001000.948

0.0074<0.0010

<0.0010<0.0010

<0.0020<0.00100

0.418<0.00100

0.0020.01

0.028Notes: Results in m

g/L (parts per million)

Shaded/Bolded cell indicates value exceeds the Tier 1 GRO


ed contaminant that exceeds the Tier 1 G

RO"<" indicates not detected at stated detection lim

its"--" indicates value not availableClass I and Class II G


bjectives (Appendix B, Table E)Indoor Inhalation G


bjectives (Appendix B, Table H, Diffusion & Advection)(1)G

ROs for Non-TACO

chemicals provided by the Illinois EPA Toxicity Assessm

ent Unit (October 24, 2018)

(2)Current TACO chem

ical for the indoor inhalation exposure route; Non-TACO chem

ical for the groundwater ingestion exposure route.

(3)The laboratory is currently unable to separate m- and p-xylenes, therefore the com

bined result is reported, and the more stringent G

RO for m

-xylene is provided for comparison.

Page of

22

TABLE NO

. 3 ISC

O C

onfirmation Soil Sam


Cs


Tier 1 Soil Rem


Os)

Most

Stringent D

efault or Site-Specific

Soil Saturation

Limit (1)

Csat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

Pre-Rem

ediationPost-R

emediation

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

B6020 (7.5-10)

B6020 (10-12.5)

B6020 (12.5-15)

CB101

(7.5-10)C

B101 (10-12.5)

CB101

(12.5-15)C

ollection Date

6/26/206/25/20

6/26/208/12/20

8/12/208/12/20


<4.56<0.0546

<0.000785<0.0392

<0.000749--

1,200--

1,2002

9.6670


<4.56<0.0546

<0.000785<0.0392

<0.0007494.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<4.56<0.0546

<0.000785<0.0392

<0.000749310

1,8008,200

1,8000.02

0.31,300


<4.56<0.0546

<0.000785<0.0392

<0.0007497,800

1,300200,000

13023

1101,400


<4.56<0.0546

<0.000785<0.0392

<0.0007493,900

29010,000

3.00.06

0.3910


<4.56<0.0546

<0.000785<0.0392

<0.0007497

0.41,400

0.990.02

0.11,900


<4.56<0.0546

<0.000785<0.0392

<0.0007499

151,800

0.500.03

0.15870

2-Butanone (MEK)

<0.00977<45.6

<0.546<0.00785

<0.392<0.00749

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<0.0244

<114<1.37

<0.0196<0.981

<0.0187391

(2)459

(2)1,020

(2)4.73

(2)0.225

(2)0.225

(2)--


IBK)<0.0244

<114<1.37

<0.0196<0.981

<0.0187--

----

----

----

Acetone<0.0244

<114<1.37

<0.0196<0.981

<0.018770,000

100,000--

100,00025

25100,000

Benzene<0.000244

<1.14<0.0137

<0.000196<0.00981

<0.00018712

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.00074910

3,0002,000

3,0000.6

0.62,000

Bromoform

<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

11010

1,0003.9

0.21.2

3,100C


<4.56<0.0546

<0.000785<0.0392

<0.0007497,800

72020,000

9.032

160520


<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

50.3

4100.9

0.070.33

560C

hlorobenzene<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.0007491,600

1304,100

1.31

6.5290

Chloroethane

<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

----

----

----

--C

hloroform<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.000749100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.000749--

----

----

----

cis-1,2-Dichloroethene0.000996

<4.56<0.0546

<0.0007850.127

<0.000749780

1,20020,000

1,2000.4

1.11,000


<4.56<0.0546

<0.000785<0.0392

<0.0007496.4

1.11,200

0.390.004

0.02850

Dibromochlorom

ethane<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.0007491,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<0.000977

<4.56<0.0546

<0.000785<0.0392

<0.0007497,800

40020,000

5813

19150


<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<0.00488<22.8

<0.273<0.00392

<0.196<0.00375

8513

12,00034

0.020.2

2,500Styrene

<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

16,0001,500

41,000430

418


0.08391,330

1.590.0618

2.430.00594

1211

2,40028

0.060.3

1,075(3)

Toluene0.00120

<4.56<0.0546

<0.000785<0.0392

<0.00074916,000

650410,000

4212

29290


<9.12<0.109

<0.00157<0.0785

<0.0015016,000

32041,000

5.6150

150110


<4.56<0.0546

<0.000785<0.0392

<0.0007491,600

3,10041,000

3,1000.7

3.42,100


8.16<0.0546

0.0008320.257

<0.00074958

51,200

120.06

0.3650

Vinyl Chloride

<0.000977<4.56

<0.0546<0.000785

<0.0392<0.000749

0.460.28

1701.1

0.010.07

2,600Notes: Results listed in m


Tier 1 SROs pursuant to 35 IAC 742-Tiered Approach to Corrective Action O


ost stringent Tier 1 SROShaded/Italicized cell indicates an elevated detection lim




"--" indicates value not available(1) Pursuant to 35 IAC 742-Tiered Approach to Corrective Action O

bjectives (Appendix A, Table A)(2)Non-TACO

SRO calculated in accordance w

ith the Illinois EPA’s online “Procedures for Determining Soil Rem

ediation Objectives for Non-TACO

Chemicals”



Page of

14

TABLE NO

. 3 ISC

O C



Cs


Tier 1 Soil Rem


Os)

Most

Stringent D


Soil Saturation

Limit (1)

Csat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

Pre-Rem

ediationPost-R

emediation

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

B6021 (10-12.5)

CB102

(7.5-10)C

B102 (10-12.5)

CB102

(12.5-15)C

ollection Date

6/25/208/12/20

8/12/208/12/20


<0.000857<0.359

<0.0400--

1,200--

1,2002

9.6670


<0.000857<0.359

<0.04004.56

(2)0.70

(2)621

(2)1.87

(2)0.0083

(2)0.0083

(2)--


<0.000857<0.359

<0.0400310

1,8008,200

1,8000.02

0.31,300


<0.000857<0.359

<0.04007,800

1,300200,000

13023

1101,400


<0.000857<0.359

<0.04003,900

29010,000

3.00.06

0.3910


<0.000857<0.359

<0.04007

0.41,400

0.990.02

0.11,900


<0.000857<0.359

<0.04009

151,800

0.500.03

0.15870

2-Butanone (MEK)

<35.90.0565

<3.59<0.400

46,929(2)

70,469(2)

408,090(2)

145(2)

19.88(2)

19.88(2)

25,0002-H

exanone<89.9

<0.0214<8.98

<0.999391

(2)459

(2)1,020

(2)4.73

(2)0.225

(2)0.225

(2)--


IBK)<89.9

<0.0214<8.98

<0.999--

----

----

----

Acetone<89.9

0.887<8.98

<0.99970,000

100,000--

100,00025

25100,000

Benzene<0.899

0.000317<0.0898

<0.0099912

0.82,300

2.20.03

0.17580

Bromodichlorom

ethane<3.59

<0.000857<0.359

<0.040010

3,0002,000

3,0000.6

0.62,000

Bromoform

<3.59<0.000857

<0.359<0.0400

8153

16,000140

0.80.8

1,200Brom

omethane (M

ethyl Bromide)

<3.59<0.000857

<0.359<0.0400

11010

1,0003.9

0.21.2

3,100C


<0.000857<0.359

<0.04007,800

72020,000

9.032

160520


<3.59<0.000857

<0.359<0.0400

50.3

4100.9

0.070.33

560C

hlorobenzene<3.59

<0.000857<0.359

<0.04001,600

1304,100

1.31

6.5290

Chloroethane

<3.59<0.000857

<0.359<0.0400

----

----

----

--C

hloroform<3.59

0.00104<0.359

<0.0400100

0.302,000

0.760.6

2.92,500

Chlorom

ethane<3.59

<0.000857<0.359

<0.0400--

----

----

----


<0.000857<0.359

<0.0400780

1,20020,000

1,2000.4

1.11,000


<0.000857<0.359

<0.04006.4

1.11,200

0.390.004

0.02850

Dibromochlorom

ethane<3.59

<0.000857<0.359

<0.04001,600

1,30041,000

1,3000.4

0.4890

Ethylbenzene<3.59

<0.000857<0.359

<0.04007,800

40020,000

5813

19150


<3.59<0.000857

<0.359<0.0400

7808,800

2,000140

0.320.32

8,400M

ethylene Chloride

<18.0<0.00428

<1.80<0.200

8513

12,00034

0.020.2

2,500Styrene

<3.59<0.000857

<0.359<0.0400

16,0001,500

41,000430

418


1,0800.128

8.604.05

1211

2,40028

0.060.3

1,075(3)

Toluene<3.59

<0.000857<0.359

<0.040016,000

650410,000

4212

29290

Total Xylenes<7.19

<0.00171<0.718

<0.080016,000

32041,000

5.6150

150110


<0.000857<0.359

<0.04001,600

3,10041,000

3,1000.7

3.42,100

Trichloroethene10.3

0.000874<0.359

<0.040058

51,200

120.06

0.3650

Vinyl Chloride

<3.59<0.000857

<0.359<0.0400

0.460.28

1701.1

0.010.07

2,600Notes: Results listed in m


Tier 1 SROs pursuant to 35 IAC 742-Tiered Approach to Corrective Action O


ost stringent Tier 1 SROShaded/Italicized cell indicates an elevated detection lim




"--" indicates value not available(1) Default soil saturation lim

its pursuant to 35 IAC 742-Tiered Approach to Corrective Action Objectives (Appendix A, Table A)

(2)Non-TACO SRO







Page of

24

TABLE NO

. 3 ISC

O C



Cs


Tier 1 Soil Rem


Os)

Most

Stringent D


Soil Saturation

Limit (1)

Csat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

CB103

(7.5-10)C

B103 (10-12.5)

CB103

(12.5-15)Soil

IngestionO

utdoor Inhalation

Soil Ingestion

InhalationC

lass IC

lass IIC

ollection Date

8/12/208/12/20


<0.0457<0.0466

<0.00221--

1,200--

1,2002

9.6670


<0.0466<0.00221

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.0457<0.0466

<0.00221310

1,8008,200

1,8000.02

0.31,300


<0.0466<0.00221

7,8001,300

200,000130

23110


<0.0457<0.0466

<0.002213,900

29010,000

3.00.06

0.3910


<0.0466<0.00221

70.4

1,4000.99

0.020.1


<0.0457<0.0466

<0.002219

151,800

0.500.03

0.15870

2-Butanone (MEK)

<0.457<0.466

<0.022146,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<1.14<1.17

<0.0552391

(2)459

(2)1,020

(2)4.73

(2)0.225

(2)0.225

(2)--


IBK)<1.14

<1.17<0.0552

----

----

----

--Acetone

<1.14<1.17

<0.055270,000

100,000--

100,00025

25100,000

Benzene<0.0114

<0.0117<0.000552

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.0457<0.0466

<0.0022110

3,0002,000

3,0000.6

0.62,000

Bromoform

<0.0457<0.0466

<0.0022181

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.0457

<0.04660.00352

11010

1,0003.9

0.21.2

3,100C


<0.04660.0111

7,800720

20,0009.0

32160

520C


<0.0466<0.00221

50.3

4100.9

0.070.33

560C

hlorobenzene<0.0457

<0.0466<0.00221

1,600130

4,1001.3

16.5

290C

hloroethane<0.0457

<0.0466<0.00221

----

----

----

--C

hloroform<0.0457

<0.0466<0.00221

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.0457<0.0466

<0.00221--

----

----

----


0.2390.00788

7801,200

20,0001,200

0.41.1


<0.0457<0.0466

<0.002216.4

1.11,200

0.390.004

0.02850

Dibromochlorom

ethane<0.0457

<0.0466<0.00221

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.0457<0.0466

<0.002217,800

40020,000

5813

19150


<0.0457<0.0466

<0.00221780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.228

<0.233<0.0110

8513

12,00034

0.020.2

2,500Styrene

<0.0457<0.0466

<0.0022116,000

1,50041,000

4304

18260


0.8370.156

1211

2,40028

0.060.3

1,075(3)

Toluene<0.0457

<0.0466<0.00221

16,000650

410,00042

1229

290Total Xylenes

<0.0913<0.0932

<0.0044216,000

32041,000

5.6150

150110


<0.0466<0.00221

1,6003,100

41,0003,100

0.73.4


0.3360.0867

0.014458

51,200

120.06

0.3650

Vinyl Chloride

<0.04570.317

0.009780.46

0.28170

1.10.01

0.072,600

Notes: Results listed in mg/kg (parts per m

illion)Tier 1 SRO

s pursuant to 35 IAC 742-Tiered Approach to Corrective Action Objectives (Appendix B, Tables A & B)





its"--" indicates value not available(1) Pursuant to 35 IAC 742-Tiered Approach to Corrective Action O





Chemicals” (see the calculation spreadsheets

following the analytical data tables)



Page of

34

TABLE NO

. 3 ISC

O C



Cs


Tier 1 Soil Rem


Os)

Most

Stringent D


Soil Saturation

Limit (1)

Csat

Residential

Construction W

orkerM

igration to G

roundwater

Sample ID

(Interval)

Pre-Rem

ediationPost-R

emediation

Soil Ingestion

Outdoor

InhalationSoil

IngestionInhalation

Class I

Class II

B6002 (0-2.5)

B6002 (5-7.5)

B6002 (10-12.5)

B6002 (12.5-15)

CB104

(7.5-10)C

B104 (10-12.5)

CB104

(12.5-15)C

B-104-2 (10-12.5)

CB-104-2

(12.5-15)C

ollection Date

8/24/198/24/19

9/5/199/5/19

8/12/208/12/20

8/12/2010/9/20


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.0405--

1,200--

1,2002

9.6670


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

4.56(2)

0.70(2)

621(2)

1.87(2)

0.0083(2)

0.0083(2)


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.0405310

1,8008,200

1,8000.02

0.31,300


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

7,8001,300

200,000130

23110


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.04053,900

29010,000

3.00.06

0.3910


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

70.4

1,4000.99

0.020.1


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.04059

151,800

0.500.03

0.15870

2-Butanone (MEK)

<0.819<0.00868

<199<0.00723

<0.439<365

<40.0<44.5

<0.40546,929

(2)70,469

(2)408,090

(2)145

(2)19.88

(2)19.88

(2)25,000

2-Hexanone

<2.05<0.0217

<499<0.0181

<1.10<912

<100<111

<1.01391

(2)459

(2)1,020

(2)4.73

(2)0.225

(2)0.225

(2)--


IBK)<2.05

<0.0217<499

<0.0181<1.10

<912<100

<111<1.01

----

----

----

--Acetone

<2.05<0.0217

<499<0.0181

<1.10<912

<100<111

<1.0170,000

100,000--

100,00025

25100,000

Benzene<0.0205

<0.000868<4.99

<0.000181<0.0110

<9.12<1.00

<1.11<0.0101

120.8

2,3002.2

0.030.17

580Brom

odichloromethane

<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.040510

3,0002,000

3,0000.6

0.62,000

Bromoform

<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.040581

5316,000

1400.8

0.81,200

Bromom

ethane (Methyl Brom

ide)<0.0819

<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

11010

1,0003.9

0.21.2

3,100C


<0.000868<19.9

0.00130<0.0439

<36.5<4.00

<4.45<0.0405

7,800720

20,0009.0

32160

520C


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

50.3

4100.9

0.070.33

560C

hlorobenzene<0.0819

<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

1,600130

4,1001.3

16.5

290C

hloroethane<0.0819

<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

----

----

----

--C

hloroform<0.0819

<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

1000.30

2,0000.76

0.62.9

2,500C

hloromethane

<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.0405--

----

----

----


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

1170.0481

7801,200

20,0001,200

0.41.1


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.04056.4

1.11,200

0.390.004

0.02850

Dibromochlorom

ethane<0.0819

<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

1,6001,300

41,0001,300

0.40.4

890Ethylbenzene

<0.08190.00202

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.04057,800

40020,000

5813

19150


<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.0405780

8,8002,000

1400.32

0.328,400

Methylene C

hloride<0.409

<0.00434<99.7

<0.00361<0.219

<182<20.0

<22.2<0.202

8513

12,00034

0.020.2

2,500Styrene

<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.040516,000

1,50041,000

4304

18260


0.1134,540

0.03921.32

2,85089.9

7220.513

1211

2,40028

0.060.3

1,075(3)

Toluene<0.0819

0.00704<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

16,000650

410,00042

1229

290Total Xylenes

<0.1640.0127

<39.9<0.00145

0.160<72.9

<8.01<8.90

<0.080916,000

32041,000

5.6150

150110


<0.000868<19.9

<0.000723<0.0439

<36.5<4.00

<4.45<0.0405

1,6003,100

41,0003,100

0.73.4


0.1430.00310

1110.000897

0.0474<36.5

<4.00226

0.045758

51,200

120.06

0.3650

Vinyl Chloride

<0.0819<0.000868

<19.9<0.000723

<0.0439<36.5

<4.00<4.45

<0.04050.46

0.28170

1.10.01

0.072,600

Notes: Results listed in mg/kg (parts per m

illion)Tier 1 SRO

s pursuant to 35 IAC 742-Tiered Approach to Corrective Action Objectives (Appendix B, Tables A & B)





its"--" indicates value not available(1) Pursuant to 35 IAC 742-Tiered Approach to Corrective Action O





Chemicals” (see the calculation spreadsheets follow

ing the analytical data tables)(3)Site-specific soil saturation lim

it as presented in the Amended FSIR/RO

R/RAP, dated January 15, 2020, and approved by the Illinois EPA on April 3, 2020

Page of

44

TABLE NO. 4 Soil Gas Sample Analytical Results: VOCs TO-15

7601-7621 Lake Street / River Forest, ILTier 1 Soil Gas Remediation Objectives

(Tier 1 SGROs)

Sample ID SG-1 SG-2 SG-3 SG-4 SG-5 SG-6 Outdoor Inhalation(1) Indoor Inhalation(2)

Collection Date 8/5/20 8/5/20 8/5/20 8/5/20 8/5/20 8/5/20 Residential Construction Worker Residential

Acetone 0.133 0.179 0.145 0.126 0.102 <2.52 750,000 750,000 750,000Benzene 0.0058 0.0099 0.0064 0.0058 0.0082 <0.136 420 1,100 0.37Bromodichloromethane <0.0024 <0.0174 <0.0025 <0.0023 <0.0022 <0.568 450,000 450,000 450,000Bromoform <0.0091 <0.0672 <0.0096 <0.0088 <0.0086 <2.19 1,800 4,900 11Bromomethane (Methyl bromide) <0.0014 <0.0101 <0.0014 <0.0013 <0.0013 <0.329 12,000 2,400 6.92-Butanone (MEK) 0.0593 <0.0384 0.0505 0.0516 0.0420 <1.25 380,000 15,000 6,400tert-butyl alcohol 0.0157 0.0575 0.0086 0.0152 0.0164 <1.29 -- -- --Carbon disulfide 0.0085 <0.0081 0.0023 0.0017 0.0021 <0.264 1,500,000 48,000 780Carbon tetrachloride <0.0022 <0.0164 <0.0023 <0.0022 <0.0021 <0.535 290 770 0.21Chlorobenzene <0.0016 <0.0120 <0.0017 <0.0016 <0.0015 <0.391 36,000 3,700 69Chloroform <0.00086 <0.0063 <0.00091 0.0015 <0.00081 <0.207 110 290 0.11Dibromochloromethane <0.0030 <0.0221 <0.0032 <0.0029 <0.0028 <0.722 57,000 150 57,0001,2-Dibromoethane (EDB) <0.0014 <0.010 <0.0014 <0.0013 <0.0013 <0.326 2.9 7.9 0.00781,2-Dichlorobenzene <0.0021 <0.0156 <0.0022 <0.0020 <0.0020 <0.509 11,000 6,700 2901,4-Dichlorobenzene <0.0053 <0.0392 <0.0056 <0.0051 <0.0050 <1.28 8,400 6,400 1,200Dichlorodifluoromethane 0.0023 <0.0129 0.0025 0.0025 0.0024 <0.422 890,000 92,000 2701,1-Dichloroethane <0.0014 <0.0105 <0.0015 <0.0014 <0.0013 <0.344 870,000 90,000 6901,2-Dichloroethane <0.00072 <0.0053 <0.00075 <0.00069 <0.00067 <0.172 67 180 0.0991,1-Dichloroethene <0.0014 <0.0103 <0.0015 <0.0014 <0.0013 <0.337 520,000 5,300 240cis-1,2-Dichloroethene 0.0252 <0.0103 0.479 0.0456 0.0192 <0.337 1,100,000 1,100,000 1,100,000trans-1,2-Dichloroethene 0.0036 <0.0103 0.052 0.0046 0.0018 <0.337 120,000 12,000 851,2-Dichloropropane <0.0016 <0.0120 <0.0017 <0.0016 <0.0015 <0.392 240 110 0.311,3-Dichloropropene (cis + trans) <0.0032 <0.0236 <0.0034 <0.0032 <0.0030 <0.770 1,900 1,400 0.901,4-Dioxane <0.0064 <0.0468 <0.0067 <0.0061 <0.0060 <1.53 16 42 0.22Ethylbenzene 0.0764 0.0223 0.0869 0.106 0.0997 <0.369 59,000 8,500 1.3Cumene (Isopropylbenzene) <0.0044 <0.0320 <0.0046 <0.0042 <0.0041 <1.04 30,000 30,000 600Methylene chloride 0.0143 0.118 0.0225 0.0098 0.0103 <1.47 6,100 5,100 5.6Methyl tert-butyl ether <0.0064 <0.0468 <0.0067 <0.0061 <0.0069 <1.53 1,200,000 23,000 3,700Naphthalene 0.006 <0.0340 <0.0049 <0.0045 <0.0043 <1.10 560 5.8 0.11Styrene 0.006 <0.0111 0.0077 0.0075 0.0074 <0.362 34,000 16,000 1,400Tetrachloroethene 0.237 0.0132 0.194 2.24 0.0932 68.1 360 970 0.55(4)

Toluene 0.0872 0.0830 0.105 0.163 0.126 <0.320 140,000 50,000 6,2001,2,4-Trichlorobenzene <0.0131 <0.0965 <0.0138 <0.0127 <0.0123 <3.15 1,000 110 5.41,1,1-Trichloroethane <0.0019 <0.0142 <0.0020 <0.0019 <0.0018 <0.464 870,000 89,000 6,6001,1,2-Trichloroethane <0.00097 <0.0071 <0.0010 <0.00093 <0.00090 <0.232 170,000 170,000 170,000Trichloroethene 0.0381 <0.0070 0.0249 0.0271 0.0079 3.71 1,700 1,500 1.5Trichlorofluoromethane <0.0020 <0.0146 <0.0021 <0.0019 <0.0019 <0.476 2,100,000 220,000 860Vinyl acetate <0.0012 <0.0092 <0.0013 <0.0012 <0.0012 <0.299 160,000 1,600 250Vinyl chloride <0.00045 0.0500 0.0205 0.0023 0.00095 <0.109 780 3,000 0.29m-Xylene(3) 0.0545 <0.0227 0.0657 0.0738 0.0692 <0.739 52,000 3,100 140o-Xylene 0.0202 <0.0113 0.0252 0.028 0.0255 <0.369 41,000 2,600 120p-Xylene(3) 0.0545 <0.0227 0.0657 0.0738 0.0692 <0.739 55,000 3,300 130Notes: Results listed in mg/m3 (note that the laboratory report presents the results in units of µg/m3)

Shaded/Bolded cell indicates a concentration that exceeds a Tier 1 SGRO"<" indicates not detected at stated detection limits(1) SGROs pursuant to 35 IAC 742-Tiered Approach to Corrective Action Objectives (Appendix B, Table G)(2) SGROs pursuant to 35 IAC 742-Tiered Approach to Corrective Action Objectives (Appendix B, Table H)(3) The laboratory is currently unable to separate the m- and p-Xylenes isomers; therefore, the combined m,p-Xylenes result is listed(4) The indoor inhalation Tier 1 SGRO provided in 35 IAC 742 was calculated using an outdated inhalation URF value. The SGRO calculated using the current URF is

12.3 mg/m3.

Non-TACO Parameter:1,1,2,2-

tetrachloroethane2-butanone

(MEK) 2-hexanone

Default ParametersIRsoil (Soil Ingestion Rate) - mg/dResidential=200, Ind/Com=50 200 200 200ED (Exposure Duration) - yrResidential=6, Ind/Com=25 6 6 6EF (Exposure Frequency) - d/yrResidential=350, Ind/Com=250 350 350 350AT (Averaging Time - NonCarcinogens) - yrResidential=6, Ind/Com=25 6 6 6BW (Body Weight) - kgResidential=15, Ind/Com=70 15 15 15THQ (Target Hazard Quotient)1 1 1 1

Chemical-Specific ParametersRfDo (Oral Reference Dose) - mg/kg-dToxicological Specific - USEPA Regional Screening Level Summary Table (May 2016) 2.0E-02 6.0E-01 5.0E-03SSL CalculationS1 (mg/kg or ppm)Remediation Objectives for Noncarcinogenic Contaminants 1,564.286 46,928.571 391.071

Non-TACO SRO - Residential Soil Ingestion (mg/kg or ppm) 1,564 46,929 391

Non-TACO SROs Residential Soil Ingestion for Noncarcinogenic Contaminants SSL Equation S1

Page of 1 10

Non-TACO Parameter: 1,1,2,2-Tetrachloroethane

Default ParametersIRsoil (Soil Ingestion Rate) - mg/dResidential=200, Ind/Com=50 200ED (Exposure Duration) - yrResidential=6, Ind/Com=25 6EF (Exposure Frequency) - d/yrResidential=350, Ind/Com=250 350AT (Averaging Time - Carcinogens) - yr70 70BW (Body Weight) - kgResidential=15, Ind/Com=70 15TR (Target Cancer Risk)Residential or Ind/Com = 10-6 1.0E-06Chemical-Specific ParametersSfo (Oral Slope Factor) - mg/kg-dToxicological Specific - USEPA Regional Screening Level Summary Table (May 2016) 2.0E-01SSL CalculationS3 (mg/kg or ppm)Remediation Objectives for Carcinogenic Contaminants 4.563

Non-TACO SRO - Residential Soil Ingestion (mg/kg or ppm) 4.56

Non-TACO SROs Residential Soil Ingestion for Carcinogenic Contaminants SSL Equation S3

Page of 2 10


tetrachloroethane2-butanone

(MEK) 2-hexanone

Default ParametersIRsoil (Soil Ingestion Rate) - mg/dConstruction Worker=480 480 480 480ED (Exposure Duration) - yrConstruction Worker=1 1 1 1EF (Exposure Frequency) - d/yrConstruction Worker=30 30 30 30AT (Averaging Time - NonCarcinogens) - yrConstruction Worker=0.115 0.115 0.115 0.115BW (Body Weight) - kgConstruction Worker=70 70 70 70THQ (Target Hazard Quotient)1 1 1 1Chemical-Specific ParametersRfDs (Subchronic Oral Reference Dose) - mg/kg-dnonTACOsubchronicvaluesoct2016webprotected.xlsx 5.0E-01 2.0E+00 5.0E-03SSL CalculationS1 (mg/kg or ppm)Remediation Objectives for Noncarcinogenic Contaminants 102,022.569 408,090.278 1,020.226

Non-TACO SRO - Construction Worker Soil Ingestion (mg/kg or ppm) 102,023 408,090 1,020

Non-TACO SROs Construction Worker Soil Ingestion for Noncarcinogenic Contaminants SSL Equation S1

Page of 3 10


Tetrachloroethane

Default ParametersIRsoil (Soil Ingestion Rate) - mg/dConstruction Worker=480 480ED (Exposure Duration) - yrConstruction Worker=1 1EF (Exposure Frequency) - d/yrConstruction Worker=30 30AT (Averaging Time - Carcinogens) - yr70 70BW (Body Weight) - kgConstruction Worker=70 70TR (Target Cancer Risk)10-6 1.0E-06Chemical-Specific ParametersSfo (Oral Slope Factor) - mg/kg-dToxicological Specific - USEPA Regional Screening Level Summary Table (May 2016) 2.0E-01SSL CalculationS3 (mg/kg or ppm)Remediation Objectives for Carcinogenic Contaminants 621.007

Non-TACO SRO - Construction Worker Soil Ingestion (mg/kg or ppm) 621

Non-TACO SROs Construction Worker Soil Ingestion for Carcinogenic Contaminants SSL Equation S3

Page of 4 10

Non-TACO Parameter:2-butanone

(MEK) 2-hexanone

Default ParametersfOC (Organic Carbon Content) - g/gSurface Soil = 0.006 or Site-Specific 0.006 0.006h (Total Soil Porosity) - Lpore/Lsoil0.43, or Gravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated 0.43 0.43Qa (Air Filled Porosity) - Lair/LsoilSurface Soil (top 1 meter) = 0.28, or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated 0.28 0.28Qw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15, or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated 0.15 0.15ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site-Specific 1.5 1.5AT (Averaging Time for Noncarcinogens-Inhalation) - yrResidential = 30, Ind/Com = 25 30 30ED (Exposure Duration) - yrResidential = 30, Ind/Com = 25 30 30EF (Exposure Frequency) - d/yrResidential = 350, Ind/Com = 250 350 350Q/C - (g/m2*s)/(kg/m3)Residential = 68.81, Ind/Com = 85.81 68.81 68.81T (Exposure Interval) - sResidential = 9.5e8, Ind/Com = 7.9e8 9.50E+08 9.50E+08THQ (Target Hazard Quotient)1 1 1Chemical-Specific ParametersDi (Diffusivity in Air) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.10E-02 7.00E-02Dw (Diffusivity in Water) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 1.00E-05 8.40E-06H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 2.30E-03 3.80E-03Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 4.50E+00 1.50E+01RfC (Inhalation Reference Concentration) - mg/m3 Toxicological Specific - USEPA Regional Screening Level Summary Table (May 2016) 5.0E+00 3.0E-02SSL CalculationsS8 (Volatilization Factor [VF]) - m3/kg 13,514.77 14,680.53S10 (Apparent Diffusivity [DA]) - cm2/s 0.0000859204 0.0000728166S19 (Soil-Water Part. Coef. [Kd]) - cm3/g 2.70E-02 9.00E-02S4 - Remediation Objectives for Noncarcinogenic Contaminants (mg/kg or ppm) 70,469.87 459.29

Non-TACO SRO - Residential Outdoor Inhalation (mg/kg or ppm) 7.05E+04 459.29

Default Soil Saturation Limit for Outdoor Inhalation (35 IAC 742): 2.50E+04

Non-TACO SROs Residential Outdoor Inhalation for Noncarcinogenic Contaminants SSL Equation S4

Page of 5 10


TetrachloroethaneSite Specific ParametersfOC (Organic Carbon Content) - g/gSurface Soil = 0.006 or Site Specific 0.006

η (Total Soil Porosity) - Lpore/Lsoil0.43, or Gravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated 0.43

Θa (Air Filled Porosity) - Lair/LsoilSurface Soil (top 1 meter) = 0.28 or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated

0.28

Θw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15 or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated

0.15

ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site Specific 1.5

Chemical Specific ParametersDi (Diffusivity in Air) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 4.90E-02

Dw (Diffusivity in Water) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.30E-06H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 1.50E-02

Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.50E+01

URF (Inhalation Unit Risk Factor) - (µg/m3)-1Toxicological Specific - USEPA Regional Screening Level Summary Table (May 2016)

5.8E-05

Default ParametersATc (Averaging Time for Carcinogens) - yr70 70

ED (Exposure Duration for Inhalation of Carcinogens) - yrResidential = 30, Ind/Com = 25 30

EF (Exposure Frequency) - d/yrResidential = 350, Ind/Com = 250 350Q/C - (g/m2*s)/(kg/m3)Residential = 68.81, Ind/Com = 85.81 68.81

T (Exposure Interval) - sResidential = 9.5e8, Ind/Com = 7.9e8 9.50E+08

TR (Target Cancer Risk)1e-6 1.00E-06

SSL CalculationsS8 (Volatilization Factor [VF]) - m3/kg 16,607.67S10 (Apparent Diffusivity [DA]) - cm2/s 0.0000568979S19 (Soil-Water Part. Coef. [Kd]) - cm3/g 5.70E-01S6 - Remediation Objectives for Carcinogenic Contaminants - (mg/kg or ppm) 0.70

Tier 2 SROs - Residential Outdoor Inhalation (mg/kg or ppm) 0.70

Non-TACO SROs Residential Outdoor Inhalation for Carcinogenic Contaminants SSL Equation S6

Page of 6 10

Non-TACO Parameter: 2-butanone (MEK) 2-hexanone

Default ParametersfOC (Organic Carbon Content) - g/gSurface Soil = 0.006 or Site-Specific 0.006 0.006h (Total Soil Porosity) - Lpore/Lsoil0.43, or Gravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated 0.43 0.43Qa (Air Filled Porosity) - Lair/LsoilSurface Soil (top 1 meter) = 0.28, or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated 0.28 0.28Qw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15, or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated 0.15 0.15ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site-Specific 1.5 1.5AT (Averaging Time for Noncarcinogens-Inhalation) - yrConstruction Worker = 0.115 0.115 0.115ED (Exposure Duration) - yrConstruction Worker = 1 1 1EF (Exposure Frequency) - d/yrConstruction Worker = 30 30 30Q/C - (g/m2*s)/(kg/m3)Construction Worker = 85.81 85.81 85.81T (Exposure Interval) - sConstruction Worker = 3.6e6 3.60E+06 3.60E+06THQ (Target Hazard Quotient)1 1 1Chemical-Specific ParametersDi (Diffusivity in Air) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.10E-02 7.00E-02Dw (Diffusivity in Water) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 1.00E-05 8.40E-06H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 2.30E-03 3.80E-03Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 4.50E+00 1.50E+01RfCs (Inhalation Subchronic Reference Concentration) - mg/m3 Toxicological Specific - nonTACOsubchronicvaluesoct2016webprotected.xlsx 1.0E+00 3.0E-02

SSL CalculationsS8 (Volatilization Factor [VF]) - m3/kg 1,037.49 1,126.98S9 (Volatilization Factor [VF’]-Construction Worker [adjusted for agitation]) - m3/kg 103.75 112.70S10 (Apparent Diffusivity [DA]) - cm2/s 0.0000859204 0.0000728166S19 (Soil-Water Part. Coef. [Kd]) - cm3/g 2.70E-02 9.00E-02S5 - Remediation Objectives for Noncarcinogenic Contaminants (mg/kg or ppm) 145.16 4.73

Non-TACO SRO - Construction Worker Inhalation (mg/kg or ppm) 1.45E+02 4.73

Default Soil Saturation Limit for the Outdoor Inhalation Exposure Route (35 IAC 742): 2.50E+04

Non-TACO SROs Construction Worker Inhalation for Noncarcinogenic Contaminants SSL Equation S5

Page of 7 10

Non-TACO Parameter: 1,1,2,2-TetrachloroethaneSite Specific ParametersfOC (Organic Carbon Content) - g/gSurface Soil = 0.006 or Site Specific 0.006η (Total Soil Porosity) - Lpore/Lsoil0.43, or Gravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated 0.43

Θa (Air Filled Porosity) - Lair/LsoilSurface Soil (top 1 meter) = 0.28 or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated

0.28

Θw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15 or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated

0.15

ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site Specific 1.5

Chemical Specific ParametersDi (Diffusivity in Air) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016)

4.90E-02

Dw (Diffusivity in Water) - cm2/sChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016)

9.30E-06

H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016)

1.50E-02

Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016)

9.50E+01

URF (Inhalation Unit Risk Factor) - (µg/m3)-1Toxicological Specific - USEPA Regional Screening Level Summary Table (May 2016)

5.8E-05

Default ParametersATc (Averaging Time for Carcinogens) - yr70 70

ED (Exposure Duration for Inhalation of Carcinogens) - yrConstruction Worker = 1 1EF (Exposure Frequency) - d/yrConstruction Worker = 30 30

Q/C - (g/m2*s)/(kg/m3)Construction Worker = 85.81 85.81

T (Exposure Interval) - sConstruction Worker = 3.6e6 3.60E+06TR (Target Cancer Risk)1e-6 1.00E-06

SSL CalculationsS8 (Volatilization Factor [VF]) - m3/kg 1,274.92S9 (Volatilization Factor [VF’]-Construction Worker [adjusted for agitation]) - m3/kg 127.49

S10 (Apparent Diffusivity [DA]) - cm2/s 0.0000568979S19 (Soil-Water Part. Coef. [Kd]) - cm3/g 5.70E-01S7 - Remediation Objectives for Carcinogenic Contaminants - (mg/kg or ppm) 1.87

Tier 2 SROs - Construction Worker Inhalation (mg/kg or ppm) 1.87

Non-TACO SROs Construction Worker Inhalation for Carcinogenic Contaminants SSL Equation S7

Page of 8 10


Tetrachloroethane2-butanone

(MEK) 2-hexanoneDefault ParametersDF (Dilution Factor) - unitlessS22 in App. C, Table B or 20 20 20 20foc (Organic Carbon Content) - g/gSubsurface Soil = 0.002 or Site-Specific 0.0081 0.0081 0.0081Θw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15, Subsurface Soil (below 1 meter) = 0.30 or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated 0.3 0.3 0.3Θa (Air Filled Porosity) - Lpore/LsoilSurface Soil (top 1 meter) = 0.28, Subsurface Soil (below 1 meter) = 0.13 or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated 0.13 0.13 0.13ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site-Specific 1.5 1.5 1.5Chemical-Specific ParametersGwobj (Groundwater Remediation Objective) - mg/L:Non-TACO, Class I GRO - Illinois EPA TAU (03/31/16) 0.00043 4.2 0.035H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 1.50E-02 2.30E-03 3.80E-03Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.50E+01 4.50E+00 1.50E+01SSL EquationsTarget Soil Leachate Concentration (Cw) - mg/L S18 Cw=DF*GWobj : 0.0086 84.0000 0.7000Soil-Water Partition Coefficient (Kd) - cm3/gS19 Kd=Koc*foc : 0.77 0.04 0.12Soil Remediation Objective - Soil Component of the Groundwater Ingestion Exposure Route - mg/kgS17 Csoil=Cw*(Kd+(Θw+Θa*H')/ρb): 0.00835 19.879 0.225

Non-TACO SRO - Soil Component of Class I Groundwater Ingestion (mg/kg or ppm): 0.0083 19.88 0.225

Default Soil Saturation Limit for the Soil Component of GW Ingestion (35 IAC 742): 4.50E+04

Non-TACO SROs Soil Component of Class I Groundwater Ingestion SSL Equation S17

Page of 9 10


Tetrachloroethane2-butanone

(MEK) 2-hexanoneDefault ParametersDF (Dilution Factor) - unitlessS22 in App. C, Table B or 20 20 20 20foc (Organic Carbon Content) - g/gSubsurface Soil = 0.002 or Site-Specific 0.0081 0.0081 0.0081Θw (Water Filled Porosity) - Lwater/LsoilSurface Soil (top 1 meter) = 0.15, Subsurface Soil (below 1 meter) = 0.30 or Gravel = 0.20, Sand = 0.18, Silt = 0.16, Clay = 0.17 or Calculated 0.3 0.3 0.3Θa (Air Filled Porosity) - Lpore/LsoilSurface Soil (top 1 meter) = 0.28, Subsurface Soil (below 1 meter) = 0.13 or Gravel = 0.05, Sand = 0.14, Silt = 0.24, Clay = 0.19 or Calculated 0.13 0.13 0.13ρb (Dry Soil Bulk Density) - kg/L or g/cm31.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, Clay = 1.7 or Site-Specific 1.5 1.5 1.5Chemical-Specific ParametersGwobj (Groundwater Remediation Objective) - mg/L:Non-TACO, Class II GRO - Illinois EPA TAU (03/31/16) 0.00043 4.2 0.035H' (Henry's Law Constant) - unitlessChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 1.50E-02 2.30E-03 3.80E-03Koc (Organic Carbon Partition Coef) - cm3/g or L/kgChemical Specific - USEPA Regional Screening Level Supporting Table (May 2016) 9.50E+01 4.50E+00 1.50E+01SSL EquationsTarget Soil Leachate Concentration (Cw) - mg/L S18 Cw=DF*GWobj : 0.0086 84.0000 0.7000Soil-Water Partition Coefficient (Kd) - cm3/gS19 Kd=Koc*foc : 0.77 0.04 0.12Soil Remediation Objective - Soil Component of the Groundwater Ingestion Exposure Route - mg/kgS17 Csoil=Cw*(Kd+(Θw+Θa*H')/ρb): 0.00835 19.879 0.225

Non-TACO SRO - Soil Component of Class II Groundwater Ingestion (mg/kg or ppm): 0.0083 19.88 0.225

Default Soil Saturation Limit for the Soil Component of GW Ingestion (35 IAC 742): 4.50E+04

Non-TACO SROs Soil Component of Class II Groundwater Ingestion SSL Equation S17

Page of 10 10

APPENDICES

Appendix A Illinois EPA SRP Reporting Form (DRM-2)

Appendix B Supplemental Boring/Well Logs, Sampling Protocols, Precipitation Data

2.0

6.0

10.0

12.0

20.0

50

50

60

75

FILL(gray/brown gravel, broken asphalt, fine sand), verydense, moist, no visual, no odor

Brown/black silty clay, stiff, moist, no visual, no odor

Brown coarse to fine sand with trace gravel, moist, novisual, no odor

Gray/brown coarse to fine sand, moist, no visual, no odor

Gray silty clay, very stiff, moist, no visual, no odor

Bottom of borehole at 20.0 feet.

(10-12.5')

(12.5-15')

(17.5-20')

NOTES

GROUND ELEVATION

LOGGED BY J. Mizwicki CHECKED BY M. Wells-Paske

DATE STARTED 6/25/20 COMPLETED 6/25/20

DRILLING RIG GeoProbe7822 DT

AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25

SAMPLING METHOD Dual Tube

GROUND WATER DEPTH (BELOW GROUND SURFACE ELEVATION):

DE

PT

H(f

t)

0

5

10

15

20

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%

MATERIAL DESCRIPTION

Stratification lines represent approximate boundaries; the transition may be gradual.

WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)

PAGE 1 OF 1BORING NUMBER B-6016

PROJECT NAME 7613 Lake Street

PROJECT LOCATION River Forest, IL

CLIENT River Forest Cleaners

PROJECT NUMBER 19-0338-102

PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

S.G

DT

- 8

/28

/20

14

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T\1

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8-1

02

.GP

J

Pioneer Engineering & Environmental Svcs

0

0

7

10

122

2

0

0

1.0

5.0

9.0

12.0

20.0

75

75

75

75

FILL(gray/brown gravel, broken asphalt, fine and coarsesand), very dense, moist, no visual, no odor

Black/brown silty clay, very stiff, moist, no visual, no odor

Brown/gray coarse to fine sand, dense, moist, no visual,no odor

Gray/brown coarse to fine sand, dense, moist to wet(from ~10-12'), no visual, no odor



(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

20

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

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RV

AL

(Feet belo

w s

urf

ace

)






PIO

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ER

SB

/MW

/TP

TE

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LA

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DT

- 7

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10

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0

0

4

3

102

0

0

0

1.0

5.0

8.0

10.0

20.0

75

75

60

90

FILL (brown/black gravel, broken asphalt, sand), verydense, moist, no visual, no odor

Black silty clay, very stiff, moist, no visual, no odor

Brown fine to coarse sand, dense, moist, no visual, noodor

Gray/brown coarse to fine sand, dense, wet, no visual, noodor



(0-2.5')

(2.5-5')

(5-7.5')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

20

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

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RV

AL

(Feet belo

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)






PIO

NE

ER

SB

/MW

/TP

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DT

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0

0

0

5

13

0

0

0

1.0

5.0

9.0

11.0

20.0

60

75

60

75


Brown/black silty clay, very stiff, moist, no visual, no odor

Brown coarse to fine sand, dense, moist, no visual, noodor

Gray coarse to fine sand, dense, moist, no visual, noodor



Flush Mount Cover

Cement Seal

Bentonite Chips

Bentonite Seal

10' 1" ID Sch 40PVC Riser

Quartz Sand

10' 1" ID Sch 40PVC Screen(0.01"slot)

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

20

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

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D

DE

PT

H IN

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AL

(Feet belo

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)






PIO

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ER

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/MW

/TP

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- 7

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0

0

7

18

40

0

0

0

1.0

5.0

12.0

20.0

75

60

50

100

FILL(blackish brown gravel, broken asphalt, fine sand),very dense, moist, no visual, no odor


Brown/gray coarse to fine sand, dense, moist to wet (at~9-12'), no visual, no odor



(7.5-10')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

20

GR

AP

HIC

LO

G (ppm)

500 1000 1500 2000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

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urf

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)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

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DT

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10

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3

6

150

157

1572

93

0

0

1.0

5.0

9.0

12.0

15.0

75

75

75

FILL(blackish brown gravel, broken asphalt, fine andcoarse sand), very dense, moist, no visual, no odor

Brown silty clay, very stiff, moist, no visual, no odor


Gray coarse to fine sand, dense, wet, no visual, no odor



(10-12.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

500 1000 1500 2000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

S.G

DT

- 8

/27

/20

13

:32

- R

:\B

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T\1

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J


0

0

2

112

1220

82

2.0

5.0

9.0

12.0

15.0

75

75

75

Black silty clay, very stiff, moist, no visual, no odor






(10-12.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

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MP

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DT

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1

3

11

11

117

4

2.0

7.0

9.0

11.0

15.0

75

75

75

FILL(gray/black gravel, broken asphalt, fine sand, siltyclay), dense, moist, no visual, no odor

FILL(brown/black sand, gravel), dense, moist, no visual,no odor





(10-12.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

S.G

DT

- 8

/28

/20

14

:57

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0

1

27

30

35

0

1.0

5.0

7.5

75

75

FILL(black/brown gravel, broken asphalt, sand), verydense, moist, no visual, no odor


Brown coarse to fine sand, medium dense, moist, novisual, no odor


(0-2.5')

(2.5-5')

(5-7.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

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ST

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DT

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10

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T\1

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2

6

34

1.0

5.0

7.5

75

75

FILL(black/brown gravel, broken asphalt, sand), dense,moist, no visual, no odor




(0-2.5')

(2.5-5')

(5-7.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

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RV

AL

(Feet belo

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urf

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)






PIO

NE

ER

SB

/MW

/TP

TE

MP

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DT

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10

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4

6

196

1.0

4.0

7.0

50

50

FILL(brown/black gravel, broken asphalt, sand), dense,moist, no visual, no odor


Brown/black coarse to fine sand, dense, moist, no visual,no odor


(0-2.5')

(2.5-5')

(5-7.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

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DT

- 7

/29

/20

10

:56

- R

:\B

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VIR

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GIN

T\1

9-0

33

8-1

02

.GP

J


1

0

1

1.0

4.0

8.0

15.0

50

75

90

FILL (brown/black gravel, broken asphalt, sand), dense,moist, no visual, no odor

Brown silty clay, stiff, moist, no visual, no odor


Grey silty clay, very stiff, moist, no visual, no odor


Flush Mount Cover

Cement Seal

Bentonite Chips

Bentonite Seal


Quartz Sand


(0-3')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

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ION

EE

R G

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ST

D U

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DT

- 7

/29

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10

:56

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:\B

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ING

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GIN

T\1

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8-1

02

.GP

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0

0

0

0

0

0

1.0

4.0

8.0

15.0

50

75

75

FILL (brown/black gravel, broken asphalt, sand), dense,moist, no visual, no odor

Brown silty clay, stiff, moist, no visual, no odor


Grey silty clay, very stiff, moist, no visual, no odor


(0-3')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

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DT

- 7

/29

/20

10

:56

- R

:\B

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ING

LO

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EN

VIR

ON

ME

NT

AL

GIN

T\1

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33

8-1

02

.GP

J


0

0

0

0

0

0

1.0

5.0

9.0

11.0

15.0

50

75

75


Black/brown silty clay, sitff, moist, no visual, no odor



Gray silty clay, stiff, moist


(10-12.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

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- P

ION

EE

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ST

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DT

- 8

/28

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14

:54

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:\B

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GIN

T\1

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8-1

02

.GP

J


0

0

0

0

0

0

1.0

7.0

9.0

12.0

15.0

50

75

75


Black/brown silty clay, stiff, moist, no visual, no odor



Gray silty clay, stiff, moist, no visual, no odor


(10-12.5')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

100 200 300 400

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

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DT

- 8

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14

:17

- R

:\B

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ING

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EN

VIR

ON

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GIN

T\1

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33

8-1

02

.GP

J


0

0

0

0

0

0

1.0

5.0

11.0

15.0

50

50

75


Grayish brown/red silty clay, medium stiff, moist, novisual, no odor

Blackish brown/gray coarse to fine sand, loose, moist towet, no visual, no odor

Gray silty clay, soft to medium stiff, moist, no visual, noodor


(7.5-10')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION

LOGGED BY DJ Shaw CHECKED BY M. Wells-Paske



AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

1000 2000 3000 4000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

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(Feet belo

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)

PAGE 1 OF 1BORING NUMBER CB-101





PIO

NE

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- 8

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8-1

02

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J


0

0

0

0

12

2

2.0

5.0

11.0

11.5

15.0

75

75

50

FILL(blackish brown gravel, broken asphalt, fine andcoarse sand), very dense, moist, no visual, no odor

Brown/red silty clay, medium stiff, moist, no visual, noodor

Blackish brown/red coarse to fine sand, medium dense,moist, no visual, no odor

Gray silt with coarse to fine sand, silty clay and tracegravel, dense, wet, no visual, chemical odor

Gray silty clay, soft to medium stiff, moist, no visual,chemical odor


(7.5-10')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

1000 2000 3000 4000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

ION

EE

R G

INT

ST

D U

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DT

- 8

/28

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14

:19

- R

:\B

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ING

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EN

VIR

ON

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T\1

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33

8-1

02

.GP

J


0

3

6

8

320

202

0.5

5.0

11.0

13.0

15.0

50

75

50


Grayish/blackish brown/red silty clay, medium stiff, moist,no visual, no odor

Brown/gray coarse to fine sand, medium dense, moist,no visual, no odor

Gray silt with silty clay and trace gravel, dense, moist towet, no visual, no odor

Gray silty clay with trace gravel, medium stiff, moist, novisual, no odor


(7.5-10')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

1000 2000 3000 4000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

TE

RV

AL

(Feet belo

w s

urf

ace

)






PIO

NE

ER

SB

/MW

/TP

TE

MP

LA

TE

- P

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EE

R G

INT

ST

D U

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DT

- 8

/28

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14

:19

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:\B

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T\1

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0

0

0

13

96

2

2.0

6.0

11.0

13.0

15.0

50

50

50


Brown silty clay, medium stiff, moist (CL)

Brown/gray coarse to fine sand, medium dense, moist,no visual, no odor

Gray silt with silty clay and trace gravel, dense, moist towet, brown staining, strong chemical odor

Gray silty clay with trace gravel, medium stiff, moist,brown staining, strong chemical odor


(7.5-10')

(10-12.5')

(12.5-15')

NOTES

GROUND ELEVATION




AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 2.25



DE

PT

H(f

t)

0

5

10

15

GR

AP

HIC

LO

G (ppm)

2000 4000 6000 8000

PIDConcentration

RE

CO

VE

RY

%



WELL DIAGRAM

SA

MP

LE

AN

ALY

ZE

D

DE

PT

H IN

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AL

(Feet belo

w s

urf

ace

)






PIO

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SB

/MW

/TP

TE

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- 8

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T\1

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.GP

J


0

0

3

22

5000

5000

3.5

6.0

13.0

30.0

100

100

100

100

100

100

Black sand, gravel, rubble, cinders, moist, no visual, noodor

Brown silty clay, moist, no visual, no odor

Brown fine/medium sand with clay, moist to wet, novisual, no odor

Gray silty clay to clay, moist, no visual, no odor


Flush Mount CoverCement Seal

Bentonite Chips

Bentonite Seal


Quartz Sand


NOTES

GROUND ELEVATION

LOGGED BY CHECKED BY M. Wells-Paske



AT TIME OF DRILLING

AT END OF DRILLING

AFTER DRILLING

BOREHOLE DIAM. 4.25

SAMPLING METHOD Hollow-Stem Auger


DE

PT

H(f

t)

0

5

10

15

20

25

30

GR

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G (ppm)

100 200 300 400

PIDConcentration

RE

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%



WELL DIAGRAM

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(Feet belo

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PAGE 1 OF 1BORING NUMBER MW-104





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G. Anguiano

Subsurface samples are collected by employing various soil boring techniques based on site-specific conditions. Soil borings may be advanced using any of the following methodologies: 1) a Bosch™ manual hydraulic/percussive Macro-Core® barrel sampler; 2) a truck-mounted GeoProbe 5410 hydraulic/percussive direct push sampling unit utilizing dual-tube sampling techniques; 3) a track-mounted GeoProbe 7822DT hydraulic/percussive direct push sampling unit utilizing dual-tube sampling techniques; 4) a track-mounted GeoProbe 6620DT hydraulic/percussive direct push sampling unit utilizing dual-tube sampling techniques; 5) a limited access GeoProbe hand-cart with a Macro-Core® barrel sampler or dual-tube sampler; and/or 6) stainless steel hand augers. The specific methodologies employed are described in the report and listed on the soil boring log for each soil boring location (i.e., Bosch, GeoProbe 5410, GeoProbe 7822DT, GeoProbe 6620DT, GeoProbe Hand-Cart, or HA, respectively).

The soil sampling activities are conducted in accordance with American Society of Testing and Materials (ASTM) standards (ASTM:D 1586 or 6282). Soil samples are collected with a stainless steel hand auger, a dual-tube sampler, and/or a Macro-Core® sampler at 2, 3, 4 or 5-foot intervals depending on the specific method used. In the dual-tube barrel sampling technique, a stainless steel barrel having a length of 3, 4 or 5 feet is used as an outer casing, and a the inner string consists of a center rod fitted with a dedicated disposable DT22 liner. In the Macro-Core® barrel sampling technique, a stainless steel barrel with a length of 2 or 3 feet is fitted with a dedicated disposable PVC liner and is driven into the soil to collect a representative and undisturbed sample.

The soil borings are sampled across continuous intervals from ground surface to the desired sampling depth, unless otherwise noted. The desired sampling depth is predicated on the specific conditions to be assessed, but may be restricted due to site-specific conditions. The drilling is directed by a Pioneer Engineering & Environmental Services, LLC (Pioneer) Field Project Geologist/Engineer, who field screens auger cuttings and soil samples, prepares samples for laboratory analysis, logs geologic materials encountered during drilling, observes the drilling activities, and supervises sample collection.

After retrieval, soil samples obtained from each interval are immediately field screened for the presence of organic vapors along the exposed surface of the soil sample under ambient conditions. The samples are screened for volatile organic compounds (VOCs) and/or semivolatile organic compounds (SVOCs) using a MiniRAE™ 2000 handheld air monitor / photoionization detector (PID). This device is sensitive to a variety of petroleum/hazardous substances, including those typically targeted in subsurface investigations, and provide qualitative indications of the relative concentrations of organic contaminants trapped in the sample matrix.

After the sampling sleeve is opened and screened, and where elevated ambient screening results or other field indications of contamination are observed, an undisturbed portion of the sample from the portion of the interval displaying the highest indications of contamination is immediately selected for possible analysis. Where no elevated screening results are registered, the sample selected for analysis is chosen based on the nature of the REC being assessed, and the judgment of the Field Project Manager. The sample is immediately packed into laboratory provided glassware, or preserved in accordance with US EPA’s SW-846 Method 5035, if submitted for VOC analysis. In accordance with Method 5035, a measured portion of the sample collected in the field (subsample - small diameter core) is transferred directly from the sampling device(s) to pre-labeled, pre-weighed, air-tight, laboratory-provided glassware with appropriate preservative (either empty vials with stir bars or deionized water-for samples with estimated VOC concentrations less than 0.200 ppm; or methanol-for samples with estimated VOC concentrations greater than 0.200 ppm) immediately after sample collection.

After initial screening and sample preparation, the remaining soil from the sample interval is logged according to its predominant geological characteristics, in accordance with the Unified Soil Classification System (USCS). The sample is further examined for the presence of odors and/or visual evidence of contamination (hydrocarbon or other), and a headspace reading is obtained from a portion of the sample that is allowed to equilibrate to the ambient atmospheric temperature in a dedicated Zip-lock™ bag for approximately 15 minutes, depending upon various factors, using a PID to obtain a maximum field reading. The soil classifications and the results of the headspace screening are described in the report and listed on the soil boring logs.

SUBSURFACE SOIL SAMPLING PROTOCOL

Any soil samples chosen for possible analysis are packed in appropriate containers, properly labeled, designated for possible analysis, and placed in a cooler on ice for storage immediately after sample packing/preservation has been completed to preserve the integrity of the sample during field activities. Sample coolers are retained in the possession of Pioneer personnel at all times, and upon completion of the field activities, samples are delivered to the laboratory on the same day as sample collection, or delivered to Pioneer’s office. Samples delivered to Pioneer’s office are transferred directly from the coolers into a refrigerator dedicated to storing soil and groundwater samples. The samples are then contained within the refrigerator until they are relinquished to a NELAC-certified, independent laboratory under standard chain-of-custody procedures. Note that empty, stir bar vials or vials with deionized water are placed in the freezer section of the refrigerator if they will not be picked up by the laboratory within 48 hours of sample collection.

Samples are selected based on the scope of work, field observations (i.e. visual/odor observations, elevated PID readings, etc.), other site-specific conditions, and the judgment of the Pioneer Field Project Geologist/Engineer, and are submitted for possible analysis of the appropriate compounds targeted in the investigation.

Drill cuttings and liquids generated are left at the borehole. All boreholes are decommissioned in accordance with applicable Illinois Department of Public Health guidelines. When required, these spoils are contained in 55-gallon Type 17H drums.

Any deviations to or modifications of this standard protocol will be described on a site by site basis.

For a list of acronyms used on Pioneer’s boring logs, please refer to the information on the following page.

SUBSURFACE SOIL SAMPLING PROTOCOL (cont.)

List of Acronyms

BSG = below surface grade

BTEX = benzene, toluene, ethylbenzene and total xylenes

HA = hand augers

MTBE = methyl tertiary-butyl ether

PCBs = polychlorinated biphenyls

Pest = pesticides

PID = photoionization detector

PNAs = polynuclear aromatic hydrocarbons

PP = priority pollutants

PPM = parts per million

RCRA = Resource Conservation and Recovery Act

SG = soil gas

SPLP = Synthetic Precipitation Leaching Procedure

SVOCs = semi-volatile organic compounds

TAL = target analyte list

TCL = target compound list

TCLP = toxicity characteristic leaching procedure

TOC = total organic carbon (usage related to soil tests)

TOC = top of casing (usage related to well construction and/or groundwater levels)

TPH = total petroleum hydrocarbons

TRPH = total recoverable petroleum hydrocarbons

VOCs = volatile organic compounds

USCS = Unified Soil Classification System

SUBSURFACE SOIL SAMPLING PROTOCOL (cont.)

Groundwater monitoring wells are typically installed using hollow stem auger borings. When spatial constraints dictate, wells may be installed using manual hand-augering techniques, or other acceptable practices. Soil sampling conducted during well installation is performed according to Pioneer Engineering & Environmental Services, LLC (Pioneer's) Subsurface Soil Sampling Protocol. The activities are directed by a Pioneer Field Project Geologist/Engineer, who logs geologic materials encountered, field screens auger cuttings and soil samples, and supervises the drilling activities and well installations. All drilling equipment and tools are steam-cleaned prior to mobilization onto the site, between boreholes, and upon completion of the drilling program. In accordance with Pioneer's Site Safety Plan, a PID or FID is used to monitor ambient air concentrations during sampling activities, and personal protective equipment is utilized by site personnel as necessary.

Wells are constructed of 2-inch or 1-inch I.D. schedule 40 flush-joint PVC riser and screen. The well materials are steam-cleaned prior to installation. When the depth of the well allows, the annular space surrounding the screen is backfilled with silica sand filter pack to a height not less than 1 foot above the top of the well screen, and a minimum of 1 foot of bentonite is placed above the filter pack to provide a low permeability seal. The remaining annulus is sealed with a cement/bentonite grout to the ground surface. Well screens are positioned to monitor selected areas of the water column based on site specific contaminant conditions. The position of the screened interval relative to the water table is determined based on the presence of water/moisture in the soil samples retrieved during sampling, and the water levels observed during/after the drilling activities. When possible, the top of the screen is positioned at least 1 foot above the estimated water level to account for fluctuations in the water table. All wells are completed with flush-mounted protective casings and locking well caps or "stickup" locking protective casings (depending upon site traffic) and secured with concrete at the surface. The majority of the wells are installed near suspected source areas to evaluate contaminant conditions and determine the direction of groundwater flow.

After installation, each well is developed using a new disposable Teflon© or high-density polyethylene (HDPE) bailer, or a stainless steel submersible pump. Approximately 5 to 10 well volumes of water are purged from each well, until the well water is visually clear of suspended sediments or until further yield cannot be achieved. If a stainless steel pump is used during well development, it is decontaminated between wells using a tri-sodium phosphate (TSP) wash and triple water rinse. An elevation survey is also conducted to obtain well casing elevations for calculating groundwater elevations. An arbitrary site datum of 100.00 feet is used as a benchmark to initiate the survey, and well casing elevations are measured to the nearest 0.01 feet relative to the established benchmark using standard surveying techniques.

Water levels are allowed to recharge to static conditions prior to the collection of groundwater samples or elevation data, to ensure the collection of accurate and representative data. Water level measurements are recorded to the nearest 0.01 feet using a Sonic Interface Probe, and are compared with the respective casing elevations to calculate water level elevations and apparent groundwater flow directions. Measurable thicknesses of free product are also recorded during well gauging activities when present. Sample collection is accomplished following well development using a new disposable Teflon© or HDPE bailer for each well. If wells have been previously developed/sampled and are being re-sampled, they are purged of 3 to 5 well volumes of water from each well, or until further yield cannot be achieved, using techniques similar to those for well development. The groundwater samples are carefully decanted into appropriately-sized and properly-preserved laboratory provided sample containers, and labeled to identify the sample number/location, date, and sampling personnel. The samples are subsequently packed in a cooler on ice, and shipped overnight to an independent laboratory under standard chain of custody procedures for possible analysis of the appropriate COCs.

Quality Assurance/Quality Control (QA/QC) procedures for field sampling techniques are performed on a site-by-site basis per scope of work considerations and contract obligations. Any deviations to or modifications of this standard protocol will be described on a site-by-site basis.

GROUNDWATER MONITORING WELL INSTALLATION& SAMPLING PROTOCOL

SOIL GAS SAMPLING PROTOCOL

Active soil gas sampling is performed in general accordance with 35 IAC 742.227 and standard industry practices using the GeoProbe® and Post-Run Tubing (PRT) system. Prior to sampling, Pioneer visits the USGS website to verify that the site has not received more than 0.5-inch of rain within the last 48 hours. If the site has received more than 0.5-inch of rain within the 48 hours of the anticipated sample collection time, the sampling schedule is adjusted as necessary to ensure a sufficient amount of time has passed prior to soil gas sample collection.

The PRT system consists of probe rods fitted with a PRT Adapter with O-ring, a PRT expendable point holder with O-ring, and an expendable drive point. A jackhammer is used to drive the probe rods equipped with expendable drive points to the desired sampling depth (greater than 3 feet below surface grade, and above the water table, per IEPA guidelines). The rods are retracted approximately 4 to 6 inches and a thin rod is used to disengage the expendable drive point and allow exposure to the soil. An adequate length of 0.25-inch (inside diameter) Teflon® tubing is connected to the PRT Adapter and fed down through the probe rod. The Teflon® tubing is rotated until the PRT Adapter is threaded into the expendable point holder and the O-ring is firmly seated.

To create an air-tight environment around the soil gas probe, VOC-free modeling clay is used to seal around the top of the probe rod. Once sealed, field technicians wait 30 minutes to allow the subsurface conditions to equilibrate prior to sampling. A shroud system is set-up over the sealed hole and a helium gas canister line and 60-cc syringe tubing are connected to the respective ports on the shroud system. Lastly, a 1- or 6-L summa canister is connected to the T-manifold on the sampling train with the in-line pressure regulator/vacuum gauge.

After the soil gas probe has been sealed, the shroud is covered with plastic sheeting to create a “closed” environment. A vacuum check is performed on the sampling train by using an in-line pressure regulator/vacuum gauge to apply a vacuum to the system with a 60-cc syringe and monitoring the gauge to ensure the vacuum remains steady for approximately 30 seconds. Once the vacuum test passes, a Radiodetection MGD 2002 Multi-Gas Leak Locator is connected to the tubing port where the syringe was previously connected. The shroud is then filled with helium tracer gas (as approved by the IEPA). If no helium is detected in the sampling train, the leak test passed. If in the case helium is detected, all connections are checked and another helium leak test is completed. Once the system passes the helium leak test, the Radiodetection MGD 2002 Multi-Gas Leak Locator is disconnected and the 60-cc syringe is reconnected to the system. A minimum of three air volumes is purged from the sampling system and the sample vacuum is monitored during purging to ensure high vacuum pressures are avoided in order to maintain equilibrium in the soil. Prior to sample collection, the initial canister pressure is recorded. To begin sampling, the valve on the T-manifold is opened and the soil gas sample is collected through the sampling train directly into a laboratory-provided 1- or 6-L summa canister set at a flow rate of 200 ml/min. The final canister pressure is recorded at the completion of sampling activities. Once all sampling activities are complete and rods are removed, the borehole is backfilled with bentonite to surface grade.

Any deviations to or modifications of this standard protocol will be described on a site by site basis.

Precipitation Data at a Nearby Rain Gauge for the August 5 & 12, 2020 Soil Gas Sampling Events

Appendix C Slug Test Report (MW-104-30)

Wells

Project: Former River Forest Cleanera

Number: 19-0338-102

Client: River Forest Cleaners

Location: 7613-7615 Lake St., River Forest, IL

1

Name

MW-104-30

Penetration

Partially

R [m]

0.0254

L [m]

1.524

r [m]

0.0254

B [m]

0.054

b [m]

9.14

Slug Test Analysis Report


Number: 19-0338-102


Location: 7613-7615 Lake St., River Forest, ILSlug Test: Slug Test MW-104-30' Test Well: MW-104-30

Test Conducted by: DJ Shaw Test Date: 7/7/2020

Analysis Performed by: M. Wells-Paske Analysis Date: 7/9/2020MW-104-30'

Aquifer Thickness: 15.00 m

0 1000 2000 3000 4000 5000

Time [s]

1E-3

1E-2

1E-1

1E0

h/h

0

Calculation using Bouwer & Rice

Observation Well Hydraulic Conductivity

[m/s]

MW-104-30 5.32 ! 10-7

Location: 7613-7615 Lake St., River Forest, ILSlug Test: Slug Test MW-104-30' Test Well: MW-104-30

Test Conducted by: DJ Shaw Test Date: 7/7/2020

Water level at t=0 [m]: 0.16 Static Water Level [m]: 2.02 Water level change at t=0 [m]: -1.86

Slug Test - Water Level Data Page 1 of 3


Number: 19-0338-102


Time[s]

Water Level[m]

WL Change[m]

1 0 0.16 -1.861

2 0.232 0.175 -1.846

3 0.482 0.189 -1.832

4 0.732 0.203 -1.818

5 1.136 0.231 -1.79

6 1.26 0.239 -1.782

7 1.482 0.25 -1.771

8 1.732 0.263 -1.758

9 1.982 0.27 -1.751

10 2.4 0.288 -1.733

11 2.523 0.294 -1.727

12 2.732 0.301 -1.72

13 2.982 0.309 -1.712

14 3.232 0.316 -1.705

15 3.665 0.328 -1.693

16 3.788 0.328 -1.693

17 3.982 0.331 -1.69

18 4.341 0.341 -1.68

19 4.872 0.348 -1.673

20 5.121 0.349 -1.672

21 5.541 0.352 -1.669

22 6.085 0.357 -1.664

23 6.442 0.355 -1.666

24 7.313 0.349 -1.672

25 7.461 0.349 -1.672

26 8.061 0.344 -1.677

27 8.662 0.342 -1.679

28 9.261 0.34 -1.681

29 9.921 0.341 -1.68

30 10.641 0.342 -1.679

31 11.421 0.342 -1.679

32 12.201 0.342 -1.679

33 13.041 0.342 -1.679

34 13.942 0.342 -1.679

35 14.902 0.345 -1.676

36 15.861 0.344 -1.677

37 16.942 0.345 -1.676

38 18.082 0.345 -1.676

39 19.353 0.345 -1.676

40 20.542 0.346 -1.675

41 21.861 0.346 -1.675

42 23.301 0.349 -1.672

43 24.802 0.348 -1.673

44 26.361 0.349 -1.672

45 28.042 0.348 -1.673

46 29.841 0.35 -1.671

47 31.701 0.351 -1.67

48 33.741 0.352 -1.669

49 35.841 0.353 -1.668

50 38.061 0.355 -1.666

51 40.461 0.356 -1.665

52 42.981 0.358 -1.663



Number: 19-0338-102


Time[s]

Water Level[m]

WL Change[m]

53 45.621 0.359 -1.662

54 48.442 0.36 -1.661

55 51.443 0.362 -1.659

56 54.621 0.365 -1.656

57 57.981 0.365 -1.656

58 61.581 0.367 -1.654

59 65.181 0.368 -1.653

60 69.381 0.372 -1.649

61 73.581 0.373 -1.648

62 77.781 0.376 -1.645

63 82.581 0.378 -1.643

64 87.981 0.379 -1.642

65 92.781 0.381 -1.64

66 98.781 0.385 -1.636

67 104.781 0.387 -1.634

68 110.924 0.39 -1.631

69 117.381 0.394 -1.627

70 124.581 0.397 -1.624

71 132.381 0.402 -1.619

72 140.181 0.405 -1.616

73 148.581 0.407 -1.614

74 157.581 0.412 -1.609

75 167.181 0.418 -1.603

76 176.781 0.423 -1.598

77 187.581 0.427 -1.594

78 198.981 0.434 -1.587

79 210.981 0.44 -1.581

80 223.581 0.445 -1.576

81 236.781 0.453 -1.568

82 251.181 0.458 -1.563

83 266.181 0.465 -1.556

84 281.781 0.474 -1.547

85 298.581 0.484 -1.537

86 316.581 0.491 -1.53

87 335.181 0.50 -1.521

88 355.645 0.511 -1.51

89 376.581 0.52 -1.501

90 398.781 0.534 -1.487

91 422.781 0.546 -1.475

92 447.981 0.558 -1.463

93 474.381 0.57 -1.451

94 502.581 0.581 -1.44

95 532.581 0.597 -1.424

96 564.381 0.612 -1.409

97 597.981 0.629 -1.392

98 633.981 0.642 -1.379

99 669.981 0.658 -1.363

100 711.981 0.676 -1.345

101 753.981 0.694 -1.327

102 795.981 0.714 -1.307

103 843.981 0.734 -1.287

104 897.981 0.757 -1.264

105 945.981 0.779 -1.242

106 1005.981 0.815 -1.206

107 1065.981 0.858 -1.163

108 1125.981 0.899 -1.122

109 1185.981 0.94 -1.081



Number: 19-0338-102


Time[s]

Water Level[m]

WL Change[m]

110 1245.981 0.98 -1.041

111 1305.981 1.018 -1.003

112 1365.981 1.053 -0.968

113 1425.981 1.09 -0.931

114 1485.981 1.126 -0.895

115 1545.981 1.159 -0.862

116 1605.981 1.193 -0.828

117 1665.981 1.223 -0.798

118 1725.981 1.255 -0.766

119 1785.981 1.283 -0.738

120 1845.981 1.313 -0.708

121 1905.981 1.341 -0.68

122 1965.981 1.368 -0.653

123 2025.981 1.396 -0.625

124 2085.981 1.421 -0.60

125 2145.981 1.448 -0.573

126 2205.981 1.474 -0.547

127 2265.981 1.498 -0.523

128 2325.981 1.523 -0.498

129 2385.981 1.548 -0.473

130 2445.981 1.572 -0.449

131 2505.981 1.594 -0.427

132 2565.981 1.617 -0.404

133 2625.981 1.641 -0.38

134 2685.981 1.662 -0.359

135 2745.981 1.685 -0.336

136 2805.981 1.706 -0.315

137 2866.045 1.725 -0.296

138 2925.981 1.745 -0.276

139 2985.981 1.767 -0.254

140 3045.981 1.787 -0.234

141 3105.981 1.806 -0.215

142 3165.981 1.827 -0.194

143 3225.981 1.847 -0.174

144 3285.981 1.864 -0.157

145 3345.981 1.884 -0.137

146 3405.981 1.90 -0.121

147 3465.981 1.919 -0.102

148 3525.981 1.937 -0.084

149 3585.981 1.954 -0.067

150 3645.981 1.971 -0.05

151 3705.981 1.987 -0.034

152 3765.981 2.003 -0.018

153 3825.981 2.021 0.00

Appendix D Supplemental Laboratory Reports

July 07, 2020

Pioneer Engineering & Environmental Services LLCMegan Wells-Paske

Dear Megan Wells-Paske:

RE: 19-0338-102 7613-7615 W Lake St River Forest

Workorder: 2006K09

FAX: (773) 722-9201TEL: (773) 722-9200

2753 West 31st StreetChicago, IL 60608

SUBURBAN LABORATORIES, Inc.1950 S. Batavia Ave., Suite 150 Geneva, Illinois 60134Tel. (708) 544-3260 • Toll Free (800) 783-LABSFax (708) 544-8587www.suburbanlabs.com

Suburban Laboratories, Inc. received 16 sample(s) on 6/25/2020 for the analyses presented in the following report.

Keith Sinon

All data for the associated quality control (QC) met EPA, method, or internal laboratory specifications except where noted in the case narrative. If you are comparing these results to external QC specifications or compliance limits and have any questions, please contact us.

This final report of laboratory analysis consists of this cover letter, case narrative, analytical report, dates report, and any accompanying documentation including, but not limited to, chain of custody records, raw data, and letters of explanation or reliance. This report may not be reproduced, except in full, without the prior written approval of Suburban Laboratories, Inc.

If you have any questions regarding these test results, please call me at (708) 544-3260.

Sincerely,

Project Manager

[email protected] ext 212

Illinois Department of Public Health Accredited #17585 Illinois EPA #100225 Wisconsin FID#:399089350

Created: 7/7/2020 4:34:09 PM3DJH��RI��

Case NarrativeSuburban Laboratories, Inc.

1950 S. Batavia Ave., Suite 150, Geneva, IL 60134 (708) 544-3260

Project: 19-0338-102 7613-7615 W Lake St River ForestClient: Pioneer Engineering & Environmental Servi July 07, 2020Date:

WorkOrder: 2006K09PO #: 19-0338-102

Chain of Custody #: 127863QC Level:

Temperature of samples upon receipt at SLI: C

General Comments:- All results reported in wet weight unless otherwise indicated. (dry = Dry Weight)- Sample results relate only to the analytes of interest tested and to sample as received by the laboratory.- Environmental compliance sample results meet the requirements of 35 IAC Part 186 unless otherwise indicated.- Waste water analysis follows the rules set forth in 40 CFR part 136 except where otherwise noted.- Accreditation by the State of Illinois is not an endorsement or a guarantee of the validity of data generated.- For more information about the laboratories' scope of accreditation, please contact us at (708) 544-3260 or the Agency at (217) 782-6455.- All radiological results are reported to the 95% confidence level.

Abbreviations:- Reporting Limit: The concentration at which an analyte can be routinely detected on a day to day basis, and which also meets regulatory and client needs. - Quantitation Limit: The lowest concentration at which results can be accurately quantitated.- J: The analyte was positively identified above our Method Detection Limit and is considered detectable and usable; however, the associated numerical value is the approximate concentration of the analyte in the sample.- ATC: Automatic Temperature Correction. - TNTC: Too Numerous To Count- TIC: Tentatively Identified Compound (GCMS library search identification, concentration estimated to nearest internal standard).- SS (Surrogate Standard): Quality control compound added to the sample by the lab.

Method References:For a complete list of method references please contact us.- E: USEPA Reference methods- SW: USEPA, Test Methods for Evaluating Solid Waste (SW-846)- M: Standard Methods for the Examination of Water and Wastewater- USP: Latest version of United States Pharmacopeia

Workorder Specific Comments:

Volatiles:Sample 2006K09-002A and -005A: G=Stir-bar vials provided did not purge properly due to sample matrix. Sample was analyzed from the jar provided via method 5030.

Created: 7/7/2020 4:34:11 PM3DJH��RI��

Project Name: 19-0338-102 7613-7615 W Lake St River ForestClient ID: Pioneer Engineering & Environmental Services L

Suburban Laboratories, Inc.1950 S. Batavia Ave., Suite 150, Geneva, IL 60134 (708) 544-3260

Laboratory Results

Workorder: 2006K09Report Date: July 07, 2020

Client Sample ID: B6016 (10-12.5)Lab ID: 2006K09-001 Date Received: 06/25/2020 4:15 PM Collection Date: 06/25/2020 8:30 AM

Matrix: SOIL

Parameter Result Qual. Units Date AnalyzedDilutionFactor

ReportLimit Batch ID

VOLATILE ORGANIC COMPOUNDS Analyst: RWMMethod: EPA-8260B-Rev 2, Dec-96

Total 1,3-Dichloropropene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,1,1-Trichloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,1,2,2-Tetrachloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,1,2-Trichloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,1-Dichloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,1-Dichloroethene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,2-Dichloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.041,2-Dichloropropane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.042-Butanone 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<40.4 40.42-Hexanone 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<101 1014-Methyl-2-pentanone 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<101 101Acetone 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<101 101Benzene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<1.01 1.01Bromodichloromethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Bromoform 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Bromomethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Carbon disulfide 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Carbon tetrachloride 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Chlorobenzene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Chloroethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Chloroform 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Chloromethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04cis-1,2-Dichloroethene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04cis-1,3-Dichloropropene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Dibromochloromethane 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Ethylbenzene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04m,p-Xylene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<8.08 8.08Methyl tert-butyl ether 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Methylene chloride 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<20.2 20.2o-Xylene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Total Xylenes 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<8.08 8.08Styrene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Tetrachloroethene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521187 8.08Toluene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04trans-1,2-Dichloroethene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04trans-1,3-Dichloropropene 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Trichloroethene 07/01/2020 3:04 PMmg/Kg-dry 3767 R1215218.49 4.04

Created: 7/7/2020 4:34:13 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 3:04 PMmg/Kg-dry 3767 R121521<4.04 4.04Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 3:04 PM%Rec 3767 R12152199.8 80-130 SS: Dibromofluoromethane 07/01/2020 3:04 PM%Rec 3767 R12152187.8 76.1-120 SS: Toluene-d8 07/01/2020 3:04 PM%Rec 3767 R121521105 85-115

PERCENT MOISTURE Analyst: RSMethod: ASTM-D2216-Rev 2005

Percent Moisture 06/30/2020 12:01 PMwt% 1 R121409c6.8 1.0

Created: 7/7/2020 4:34:14 PM3DJH��RI��



Laboratory Results


Client Sample ID: B6016 (12.5-15)Lab ID: 2006K09-002 Date Received: 06/25/2020 4:15 PM Collection Date: 06/25/2020 8:35 AM

Matrix: SOIL



VOLATILE ORGANIC COMPOUNDS Analyst: CYMethod: EPA-8260B-Rev 2, Dec-96

Total 1,3-Dichloropropene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,1,1-Trichloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,1,2,2-Tetrachloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,1,2-Trichloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,1-Dichloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,1-Dichloroethene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,2-Dichloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005611,2-Dichloropropane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.005612-Butanone 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.0561 0.05612-Hexanone 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.140 0.1404-Methyl-2-pentanone 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.140 0.140Acetone 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.140 0.140Benzene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00140 0.00140Bromodichloromethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Bromoform 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Bromomethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Carbon disulfide 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G0.0108 0.00561Carbon tetrachloride 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Chlorobenzene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Chloroethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Chloroform 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Chloromethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561cis-1,2-Dichloroethene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561cis-1,3-Dichloropropene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Dibromochloromethane 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Ethylbenzene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561m,p-Xylene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.0112 0.0112Methyl tert-butyl ether 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Methylene chloride 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.0280 0.0280o-Xylene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Total Xylenes 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.0112 0.0112Styrene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Tetrachloroethene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G0.0523 0.0112Toluene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561trans-1,2-Dichloroethene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561trans-1,3-Dichloropropene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Trichloroethene 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561

Created: 7/7/2020 4:34:15 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 5:56 PMmg/Kg-dry 4.93 R121514G<0.00561 0.00561Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 5:56 PM%Rec 4.93 R121514G93.0 80-130 SS: Dibromofluoromethane 07/01/2020 5:56 PM%Rec 4.93 R121514G114 76.1-120 SS: Toluene-d8 07/01/2020 5:56 PM%Rec 4.93 R121514G96.5 85-115


Percent Moisture 06/30/2020 12:01 PMwt% 1 R121409c12 1.0

Created: 7/7/2020 4:34:15 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,1,1-Trichloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,1,2,2-Tetrachloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,1,2-Trichloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,1-Dichloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,1-Dichloroethene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,2-Dichloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007061,2-Dichloropropane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.0007062-Butanone 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.00706 0.007062-Hexanone 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.0176 0.01764-Methyl-2-pentanone 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.0176 0.0176Acetone 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.0176 0.0176Benzene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R1214570.000219 0.000176Bromodichloromethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Bromoform 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Bromomethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Carbon disulfide 06/30/2020 6:20 PMmg/Kg-dry 0.61 R1214570.000861 0.000706Carbon tetrachloride 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Chlorobenzene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Chloroethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Chloroform 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Chloromethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706cis-1,2-Dichloroethene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706cis-1,3-Dichloropropene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Dibromochloromethane 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Ethylbenzene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706m,p-Xylene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.00141 0.00141Methyl tert-butyl ether 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Methylene chloride 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.00353 0.00353o-Xylene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Total Xylenes 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.00141 0.00141Styrene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Tetrachloroethene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.00141 0.00141Toluene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706trans-1,2-Dichloroethene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706trans-1,3-Dichloropropene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Trichloroethene 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706

Created: 7/7/2020 4:34:16 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 06/30/2020 6:20 PMmg/Kg-dry 0.61 R121457<0.000706 0.000706Internal Quality Control Compounds SS: 4-Bromofluorobenzene 06/30/2020 6:20 PM%Rec 0.61 R12145794.0 80-130 SS: Dibromofluoromethane 06/30/2020 6:20 PM%Rec 0.61 R12145797.5 76.1-120 SS: Toluene-d8 06/30/2020 6:20 PM%Rec 0.61 R12145798.0 85-115



Created: 7/7/2020 4:34:17 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,1,1-Trichloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,1,2,2-Tetrachloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,1,2-Trichloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,1-Dichloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,1-Dichloroethene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,2-Dichloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6141,2-Dichloropropane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.6142-Butanone 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<6.14 6.142-Hexanone 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<15.3 15.34-Methyl-2-pentanone 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<15.3 15.3Acetone 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<15.3 15.3Benzene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.153 0.153Bromodichloromethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Bromoform 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Bromomethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Carbon disulfide 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Carbon tetrachloride 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Chlorobenzene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Chloroethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Chloroform 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Chloromethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614cis-1,2-Dichloroethene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614cis-1,3-Dichloropropene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Dibromochloromethane 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Ethylbenzene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614m,p-Xylene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<1.23 1.23Methyl tert-butyl ether 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Methylene chloride 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<3.07 3.07o-Xylene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Total Xylenes 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<1.23 1.23Styrene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Tetrachloroethene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R12152156.4 1.23Toluene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614trans-1,2-Dichloroethene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614trans-1,3-Dichloropropene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Trichloroethene 07/01/2020 1:15 PMmg/Kg-dry 536.5 R1215212.87 0.614

Created: 7/7/2020 4:34:17 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 1:15 PMmg/Kg-dry 536.5 R121521<0.614 0.614Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 1:15 PM%Rec 536.5 R12152199.1 80-130 SS: Dibromofluoromethane 07/01/2020 1:15 PM%Rec 536.5 R12152188.3 76.1-120 SS: Toluene-d8 07/01/2020 1:15 PM%Rec 536.5 R121521104 85-115



Created: 7/7/2020 4:34:18 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,1,1-Trichloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,1,2,2-Tetrachloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,1,2-Trichloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,1-Dichloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,1-Dichloroethene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,2-Dichloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03951,2-Dichloropropane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.03952-Butanone 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.395 0.3952-Hexanone 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.986 0.9864-Methyl-2-pentanone 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.986 0.986Acetone 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.986 0.986Benzene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.00986 0.00986Bromodichloromethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Bromoform 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Bromomethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Carbon disulfide 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Carbon tetrachloride 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Chlorobenzene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Chloroethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Chloroform 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Chloromethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395cis-1,2-Dichloroethene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395cis-1,3-Dichloropropene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Dibromochloromethane 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Ethylbenzene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395m,p-Xylene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0789 0.0789Methyl tert-butyl ether 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Methylene chloride 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.197 0.197o-Xylene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Total Xylenes 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0789 0.0789Styrene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Tetrachloroethene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R1216310.110 0.0789Toluene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395trans-1,2-Dichloroethene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395trans-1,3-Dichloropropene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Trichloroethene 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395

Created: 7/7/2020 4:34:19 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/06/2020 12:21 PMmg/Kg-dry 34.29 R121631<0.0395 0.0395Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/06/2020 12:21 PM%Rec 34.29 R12163187.9 80-130 SS: Dibromofluoromethane 07/06/2020 12:21 PM%Rec 34.29 R121631107 76.1-120 SS: Toluene-d8 07/06/2020 12:21 PM%Rec 34.29 R12163194.1 85-115



Created: 7/7/2020 4:34:19 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/7/2020 4:34:20 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 1:40 PMmg/Kg-dry 34.42 R121521<0.0398 0.0398Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 1:40 PM%Rec 34.42 R121521107 80-130 SS: Dibromofluoromethane 07/01/2020 1:40 PM%Rec 34.42 R12152182.8 76.1-120 SS: Toluene-d8 07/01/2020 1:40 PM%Rec 34.42 R121521103 85-115



Created: 7/7/2020 4:34:21 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,1,1-Trichloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,1,2,2-Tetrachloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,1,2-Trichloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,1-Dichloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,1-Dichloroethene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,2-Dichloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007701,2-Dichloropropane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.0007702-Butanone 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.00770 0.007702-Hexanone 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.0192 0.01924-Methyl-2-pentanone 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.0192 0.0192Acetone 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.0192 0.0192Benzene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000192 0.000192Bromodichloromethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Bromoform 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Bromomethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Carbon disulfide 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Carbon tetrachloride 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Chlorobenzene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Chloroethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Chloroform 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Chloromethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770cis-1,2-Dichloroethene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770cis-1,3-Dichloropropene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Dibromochloromethane 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Ethylbenzene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770m,p-Xylene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.00154 0.00154Methyl tert-butyl ether 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Methylene chloride 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.00385 0.00385o-Xylene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Total Xylenes 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.00154 0.00154Styrene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Tetrachloroethene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R1215140.0551 0.00154Toluene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R1215140.000777 0.000770trans-1,2-Dichloroethene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770trans-1,3-Dichloropropene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R121514<0.000770 0.000770Trichloroethene 07/01/2020 2:24 PMmg/Kg-dry 0.67 R1215140.00650 0.000770

Created: 7/7/2020 4:34:22 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:23 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,1,1-Trichloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,1,2,2-Tetrachloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,1,2-Trichloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,1-Dichloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,1-Dichloroethene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,2-Dichloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007861,2-Dichloropropane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.0007862-Butanone 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.00786 0.007862-Hexanone 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.0196 0.01964-Methyl-2-pentanone 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.0196 0.0196Acetone 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.0196 0.0196Benzene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000196 0.000196Bromodichloromethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Bromoform 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Bromomethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Carbon disulfide 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Carbon tetrachloride 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Chlorobenzene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Chloroethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Chloroform 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Chloromethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786cis-1,2-Dichloroethene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R1215800.000896 0.000786cis-1,3-Dichloropropene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Dibromochloromethane 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Ethylbenzene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786m,p-Xylene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.00157 0.00157Methyl tert-butyl ether 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Methylene chloride 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.00393 0.00393o-Xylene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Total Xylenes 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.00157 0.00157Styrene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Tetrachloroethene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R1215800.113 0.00157Toluene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R1215800.00107 0.000786trans-1,2-Dichloroethene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786trans-1,3-Dichloropropene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R121580<0.000786 0.000786Trichloroethene 07/02/2020 12:30 PMmg/Kg-dry 0.74 R1215800.00985 0.000786

Created: 7/7/2020 4:34:23 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:24 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,1,1-Trichloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,1,2,2-Tetrachloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,1,2-Trichloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,1-Dichloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,1-Dichloroethene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R1215210.397 0.3931,2-Dichloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3931,2-Dichloropropane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.3932-Butanone 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<3.93 3.932-Hexanone 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<9.82 9.824-Methyl-2-pentanone 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<9.82 9.82Acetone 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<9.82 9.82Benzene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R1215210.872 0.0982Bromodichloromethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Bromoform 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Bromomethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Carbon disulfide 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Carbon tetrachloride 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Chlorobenzene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Chloroethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Chloroform 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Chloromethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393cis-1,2-Dichloroethene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R12152137.8 0.393cis-1,3-Dichloropropene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Dibromochloromethane 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Ethylbenzene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393m,p-Xylene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.786 0.786Methyl tert-butyl ether 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Methylene chloride 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<1.96 1.96o-Xylene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Total Xylenes 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.786 0.786Styrene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Tetrachloroethene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R12152129.7 0.786Toluene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393trans-1,2-Dichloroethene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R1215210.719 0.393trans-1,3-Dichloropropene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R121521<0.393 0.393Trichloroethene 07/01/2020 2:39 PMmg/Kg-dry 342.1 R12152141.9 0.393

Created: 7/7/2020 4:34:25 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 2:39 PMmg/Kg-dry 342.1 R1215212.24 0.393Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 2:39 PM%Rec 342.1 R12152197.7 80-130 SS: Dibromofluoromethane 07/01/2020 2:39 PM%Rec 342.1 R12152187.7 76.1-120 SS: Toluene-d8 07/01/2020 2:39 PM%Rec 342.1 R121521105 85-115



Created: 7/7/2020 4:34:26 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,1,1-Trichloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,1,2,2-Tetrachloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,1,2-Trichloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,1-Dichloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,1-Dichloroethene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,2-Dichloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05171,2-Dichloropropane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.05172-Butanone 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.517 0.5172-Hexanone 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<1.29 1.294-Methyl-2-pentanone 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<1.29 1.29Acetone 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<1.29 1.29Benzene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0129 0.0129Bromodichloromethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Bromoform 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Bromomethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Carbon disulfide 07/06/2020 7:51 PMmg/Kg-dry 46.47 R1216310.0553 0.0517Carbon tetrachloride 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Chlorobenzene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Chloroethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Chloroform 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Chloromethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517cis-1,2-Dichloroethene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517cis-1,3-Dichloropropene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Dibromochloromethane 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Ethylbenzene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517m,p-Xylene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.103 0.103Methyl tert-butyl ether 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Methylene chloride 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.258 0.258o-Xylene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Total Xylenes 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.103 0.103Styrene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Tetrachloroethene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.103 0.103Toluene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517trans-1,2-Dichloroethene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517trans-1,3-Dichloropropene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517Trichloroethene 07/06/2020 7:51 PMmg/Kg-dry 46.47 R121631<0.0517 0.0517

Created: 7/7/2020 4:34:26 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:27 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,1,1-Trichloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,1,2,2-Tetrachloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,1,2-Trichloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,1-Dichloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,1-Dichloroethene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,2-Dichloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05011,2-Dichloropropane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.05012-Butanone 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.501 0.5012-Hexanone 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<1.25 1.254-Methyl-2-pentanone 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<1.25 1.25Acetone 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<1.25 1.25Benzene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R1215210.880 0.0125Bromodichloromethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Bromoform 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Bromomethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Carbon disulfide 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Carbon tetrachloride 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Chlorobenzene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Chloroethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Chloroform 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Chloromethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501cis-1,2-Dichloroethene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R1215216.24 0.0501cis-1,3-Dichloropropene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Dibromochloromethane 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Ethylbenzene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501m,p-Xylene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.100 0.100Methyl tert-butyl ether 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Methylene chloride 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.250 0.250o-Xylene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Total Xylenes 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.100 0.100Styrene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Tetrachloroethene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.100 0.100Toluene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501trans-1,2-Dichloroethene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R1215210.0521 0.0501trans-1,3-Dichloropropene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R121521<0.0501 0.0501Trichloroethene 07/01/2020 5:21 PMmg/Kg-dry 43.83 R1215210.0511 0.0501

Created: 7/7/2020 4:34:28 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/01/2020 5:21 PMmg/Kg-dry 43.83 R1215217.20 0.0501Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/01/2020 5:21 PM%Rec 43.83 R12152196.8 80-130 SS: Dibromofluoromethane 07/01/2020 5:21 PM%Rec 43.83 R12152182.0 76.1-120 SS: Toluene-d8 07/01/2020 5:21 PM%Rec 43.83 R121521102 85-115



Created: 7/7/2020 4:34:28 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,1,1-Trichloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,1,2,2-Tetrachloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,1,2-Trichloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,1-Dichloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,1-Dichloroethene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,2-Dichloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04251,2-Dichloropropane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.04252-Butanone 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.425 0.4252-Hexanone 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<1.06 1.064-Methyl-2-pentanone 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<1.06 1.06Acetone 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<1.06 1.06Benzene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0106 0.0106Bromodichloromethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Bromoform 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Bromomethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Carbon disulfide 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Carbon tetrachloride 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Chlorobenzene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Chloroethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Chloroform 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Chloromethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425cis-1,2-Dichloroethene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425cis-1,3-Dichloropropene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Dibromochloromethane 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Ethylbenzene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425m,p-Xylene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0850 0.0850Methyl tert-butyl ether 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Methylene chloride 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.212 0.212o-Xylene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Total Xylenes 07/02/2020 12:22 PMmg/Kg-dry 36.79 R1215840.0854 0.0850Styrene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Tetrachloroethene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0850 0.0850Toluene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425trans-1,2-Dichloroethene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425trans-1,3-Dichloropropene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425Trichloroethene 07/02/2020 12:22 PMmg/Kg-dry 36.79 R121584<0.0425 0.0425

Created: 7/7/2020 4:34:29 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:29 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,1,1-Trichloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,1,2,2-Tetrachloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,1,2-Trichloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,1-Dichloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,1-Dichloroethene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,2-Dichloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.561,2-Dichloropropane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.562-Butanone 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<45.6 45.62-Hexanone 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<114 1144-Methyl-2-pentanone 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<114 114Acetone 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<114 114Benzene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<1.14 1.14Bromodichloromethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Bromoform 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Bromomethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Carbon disulfide 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Carbon tetrachloride 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Chlorobenzene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Chloroethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Chloroform 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Chloromethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56cis-1,2-Dichloroethene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56cis-1,3-Dichloropropene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Dibromochloromethane 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Ethylbenzene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56m,p-Xylene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<9.12 9.12Methyl tert-butyl ether 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Methylene chloride 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<22.8 22.8o-Xylene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Total Xylenes 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<9.12 9.12Styrene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Tetrachloroethene 07/02/2020 8:22 PMmg/Kg-dry 8055 R1215841,330 18.2Toluene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56trans-1,2-Dichloroethene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56trans-1,3-Dichloropropene 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Trichloroethene 07/02/2020 3:49 PMmg/Kg-dry 4027 R1215848.16 4.56

Created: 7/7/2020 4:34:31 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/02/2020 3:49 PMmg/Kg-dry 4027 R121584<4.56 4.56Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 3:49 PM%Rec 4027 R121584101 80-130 SS: Dibromofluoromethane 07/02/2020 3:49 PM%Rec 4027 R12158485.4 76.1-120 SS: Toluene-d8 07/02/2020 3:49 PM%Rec 4027 R121584105 85-115



Created: 7/7/2020 4:34:32 PM3DJH��RI��



Laboratory Results


Client Sample ID: B6021 (10-12.5)Lab ID: 2006K09-014 Date Received: 06/25/2020 4:15 PM Collection Date: 06/25/2020 12:31 PM

Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,1,1-Trichloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,1,2,2-Tetrachloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,1,2-Trichloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,1-Dichloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,1-Dichloroethene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,2-Dichloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.591,2-Dichloropropane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.592-Butanone 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<35.9 35.92-Hexanone 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<89.9 89.94-Methyl-2-pentanone 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<89.9 89.9Acetone 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<89.9 89.9Benzene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<0.899 0.899Bromodichloromethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Bromoform 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Bromomethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Carbon disulfide 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Carbon tetrachloride 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Chlorobenzene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Chloroethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Chloroform 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Chloromethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59cis-1,2-Dichloroethene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59cis-1,3-Dichloropropene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Dibromochloromethane 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Ethylbenzene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59m,p-Xylene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<7.19 7.19Methyl tert-butyl ether 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Methylene chloride 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<18.0 18.0o-Xylene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Total Xylenes 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<7.19 7.19Styrene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Tetrachloroethene 07/02/2020 6:43 PMmg/Kg-dry 6475 R1215841,080 14.4Toluene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59trans-1,2-Dichloroethene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59trans-1,3-Dichloropropene 07/02/2020 12:47 PMmg/Kg-dry 3237 R121584<3.59 3.59Trichloroethene 07/02/2020 12:47 PMmg/Kg-dry 3237 R12158410.3 3.59

Created: 7/7/2020 4:34:32 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:33 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,1,1-Trichloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,1,2,2-Tetrachloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,1,2-Trichloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,1-Dichloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,1-Dichloroethene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,2-Dichloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.221,2-Dichloropropane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.222-Butanone 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<42.2 42.22-Hexanone 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<106 1064-Methyl-2-pentanone 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<106 106Acetone 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<106 106Benzene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<1.06 1.06Bromodichloromethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Bromoform 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Bromomethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Carbon disulfide 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Carbon tetrachloride 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Chlorobenzene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Chloroethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Chloroform 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Chloromethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22cis-1,2-Dichloroethene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22cis-1,3-Dichloropropene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Dibromochloromethane 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Ethylbenzene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22m,p-Xylene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<8.45 8.45Methyl tert-butyl ether 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Methylene chloride 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<21.1 21.1o-Xylene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Total Xylenes 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<8.45 8.45Styrene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Tetrachloroethene 07/02/2020 6:18 PMmg/Kg-dry 3776 R121584115 8.45Toluene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22trans-1,2-Dichloroethene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22trans-1,3-Dichloropropene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22Trichloroethene 07/02/2020 1:12 PMmg/Kg-dry 3776 R121584<4.22 4.22

Created: 7/7/2020 4:34:33 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:34 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/7/2020 4:34:35 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/7/2020 4:34:35 PM3DJH��RI��

Sample ID Collection Date Prep Date

PREP DATES REPORT

Lab Order: 2006K09Client: Pioneer Environmental Services LLCProject: 19-0338-102 7613-7615 W Lake S

Prep Test Name TCLP Date


Suburban Laboratories, Inc.

July 07, 2020Report Date:

Batch ID

2006K09-001A 6/25/2020 8:30:00 AM CLOSED SYSTEM P&T VOC Prep

7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984


7/1/202066984

2006K09-014A 6/25/2020 12:31:00 PM CLOSED SYSTEM P&T VOC Prep

7/1/202066984


7/1/202066984


7/1/202066984

Created: 7/7/2020 4:34:35 PM3DJH��RI��

7/7/2020

Qualifier Definitions2006K09

Date:

WO#:


Qualifiers:*/x Value exceeds Maximum Contaminant LevelB Analyte detected in the associated Method BlankC Value is below Minimum Concentration Limitc Analyte not in SLI scope of accreditationE Estimated, detected above quantitation rangeG Refer to case narrative page for specific commentsH Holding times for preparation or analysis exceededJ Analyte detected below quantitation limit (QL)N Tentatively identified compoundsND Not Detected at the Reporting LimitP PresentQ Accreditation is not available from WisconsinR RPD outside accepted recovery limitsS Spike Recovery outside accepted recovery limitsT Analyte detected in sample trip blankV EPA requires field analysis/filtration. Lab analysis would be considered past hold time.

Created: 7/7/2020 4:34:35 PM3DJH��RI��

3DJH��RI��

July 13, 2020



RE: 19-0338-102 7613-7615 W Lake St River Forest

Workorder: 2006L03

FAX: (773) 722-9201TEL: (773) 722-9200




Keith Sinon




Sincerely,

Project Manager



Created: 7/13/2020 3:11:51 PM3DJH��RI��



Project: 19-0338-102 7613-7615 W Lake St River ForestClient: Pioneer Engineering & Environmental Servi July 13, 2020Date:

WorkOrder: 2006L03PO #: 19-0338-102


Temperature of samples upon receipt at SLI: 4 C





8260_S:Sample 2006L03-016A: G= The sample exhibited internal standard suppression due to sample matrix. Affected analytes were reported from dilutions, resulting in elevated reporting limits.

8260_S:Samples 2006L03-014A, -015A, and -016A: G=Stir-bar vials provided did not purge properly due to sample matrix. Samples were analyzed from the jar provided via method 5030.

Created: 7/13/2020 3:11:53 PM3DJH��RI��



Laboratory Results

Workorder: 2006L03Report Date: July 13, 2020

Client Sample ID: B6024 (0-2.5)Lab ID: 2006L03-001 Date Received: 06/26/2020 4:05 PM Collection Date: 06/26/2020 8:03 AM

Matrix: SOIL





Created: 7/13/2020 3:11:55 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/02/2020 1:30 PMmg/Kg-dry 0.66 R121580<0.000819 0.000819Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 1:30 PM%Rec 0.66 R121580103 80-130 SS: Dibromofluoromethane 07/02/2020 1:30 PM%Rec 0.66 R121580113 76.1-120 SS: Toluene-d8 07/02/2020 1:30 PM%Rec 0.66 R121580102 85-115



Created: 7/13/2020 3:11:55 PM3DJH��RI��



Laboratory Results


Client Sample ID: B6024 (2.5-5)Lab ID: 2006L03-002 Date Received: 06/26/2020 4:05 PM Collection Date: 06/26/2020 8:06 AM

Matrix: SOIL





Created: 7/13/2020 3:11:56 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:11:57 PM3DJH��RI��



Laboratory Results



Matrix: SOIL



VOLATILES, TCLP LEACHED Analyst: RWMMethod: EPA-1311/8260B-Rev 2, Dec-96

1,1-Dichloroethene 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.1001,2-Dichloroethane 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.1002-Butanone 07/09/2020 1:29 PMmg/L 100 67126<0.500 0.500Benzene 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Carbon tetrachloride 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Chlorobenzene 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Chloroform 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Tetrachloroethene 07/09/2020 1:29 PMmg/L 100 671260.155 0.100Trichloroethene 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Vinyl chloride 07/09/2020 1:29 PMmg/L 100 67126<0.100 0.100Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 1:29 PM%Rec 100 67126102 70-130 SS: Dibromofluoromethane 07/09/2020 1:29 PM%Rec 100 6712688.9 70-130 SS: Toluene-d8 07/09/2020 1:29 PM%Rec 100 67126106 70-130


Total 1,3-Dichloropropene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,1,1-Trichloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,1,2,2-Tetrachloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,1,2-Trichloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,1-Dichloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,1-Dichloroethene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,2-Dichloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4421,2-Dichloropropane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.4422-Butanone 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<4.42 4.422-Hexanone 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<11.0 11.04-Methyl-2-pentanone 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<11.0 11.0Acetone 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<11.0 11.0Benzene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.110 0.110Bromodichloromethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Bromoform 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Bromomethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Carbon disulfide 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Carbon tetrachloride 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Chlorobenzene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Chloroethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442

Created: 7/13/2020 3:11:58 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Chloroform 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Chloromethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442cis-1,2-Dichloroethene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442cis-1,3-Dichloropropene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Dibromochloromethane 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Ethylbenzene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442m,p-Xylene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.883 0.883Methyl tert-butyl ether 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Methylene chloride 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<2.21 2.21o-Xylene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Total Xylenes 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.883 0.883Styrene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Tetrachloroethene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R12158433.7 0.883Toluene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442trans-1,2-Dichloroethene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442trans-1,3-Dichloropropene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Trichloroethene 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Vinyl chloride 07/02/2020 5:04 PMmg/Kg-dry 411.8 R121584<0.442 0.442Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 5:04 PM%Rec 411.8 R12158498.4 80-130 SS: Dibromofluoromethane 07/02/2020 5:04 PM%Rec 411.8 R12158483.7 76.1-120 SS: Toluene-d8 07/02/2020 5:04 PM%Rec 411.8 R121584104 85-115



Created: 7/13/2020 3:11:58 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:11:59 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





PERCENT MOISTURE Analyst: EMMethod: ASTM-D2216-Rev 2005


Created: 7/13/2020 3:12:00 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:12:01 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:01 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




1,1-Dichloroethene 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.1001,2-Dichloroethane 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.1002-Butanone 07/09/2020 1:54 PMmg/L 100 67126<0.500 0.500Benzene 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Carbon tetrachloride 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Chlorobenzene 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Chloroform 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Tetrachloroethene 07/09/2020 1:54 PMmg/L 100 671260.577 0.100Trichloroethene 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Vinyl chloride 07/09/2020 1:54 PMmg/L 100 67126<0.100 0.100Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 1:54 PM%Rec 100 67126102 70-130 SS: Dibromofluoromethane 07/09/2020 1:54 PM%Rec 100 6712689.2 70-130 SS: Toluene-d8 07/09/2020 1:54 PM%Rec 100 67126106 70-130



Created: 7/13/2020 3:12:02 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Chloroform 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Chloromethane 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401cis-1,2-Dichloroethene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R1215841.16 0.401cis-1,3-Dichloropropene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Dibromochloromethane 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Ethylbenzene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401m,p-Xylene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.801 0.801Methyl tert-butyl ether 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Methylene chloride 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<2.00 2.00o-Xylene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Total Xylenes 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.801 0.801Styrene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Tetrachloroethene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R12158438.0 0.801Toluene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401trans-1,2-Dichloroethene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401trans-1,3-Dichloropropene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Trichloroethene 07/02/2020 2:51 PMmg/Kg-dry 367.8 R1215841.74 0.401Vinyl chloride 07/02/2020 2:51 PMmg/Kg-dry 367.8 R121584<0.401 0.401Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 2:51 PM%Rec 367.8 R12158498.7 80-130 SS: Dibromofluoromethane 07/02/2020 2:51 PM%Rec 367.8 R12158485.5 76.1-120 SS: Toluene-d8 07/02/2020 2:51 PM%Rec 367.8 R121584104 85-115



Created: 7/13/2020 3:12:03 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,1,1-Trichloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,1,2,2-Tetrachloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,1,2-Trichloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,1-Dichloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,1-Dichloroethene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,2-Dichloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009041,2-Dichloropropane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.0009042-Butanone 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.00904 0.009042-Hexanone 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.0226 0.02264-Methyl-2-pentanone 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.0226 0.0226Acetone 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.0226 0.0226Benzene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.000226 0.000226Bromodichloromethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Bromoform 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Bromomethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Carbon disulfide 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Carbon tetrachloride 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Chlorobenzene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Chloroethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Chloroform 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Chloromethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904cis-1,2-Dichloroethene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.00526 0.000904cis-1,3-Dichloropropene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Dibromochloromethane 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Ethylbenzene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.000958 0.000904m,p-Xylene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.00212 0.00181Methyl tert-butyl ether 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Methylene chloride 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.00452 0.00452o-Xylene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.000949 0.000904Total Xylenes 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.00306 0.00181Styrene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Tetrachloroethene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.0752 0.00181Toluene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.00155 0.000904trans-1,2-Dichloroethene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904trans-1,3-Dichloropropene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R121631<0.000904 0.000904Trichloroethene 07/06/2020 1:21 PMmg/Kg-dry 0.72 R1216310.0313 0.000904

Created: 7/13/2020 3:12:04 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:05 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,1,1-Trichloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,1,2,2-Tetrachloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,1,2-Trichloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,1-Dichloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,1-Dichloroethene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,2-Dichloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007941,2-Dichloropropane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.0007942-Butanone 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.00794 0.007942-Hexanone 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.0198 0.01984-Methyl-2-pentanone 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.0198 0.0198Acetone 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.0198 0.0198Benzene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000198 0.000198Bromodichloromethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Bromoform 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Bromomethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Carbon disulfide 07/02/2020 3:30 PMmg/Kg-dry 0.64 R1215800.00125 0.000794Carbon tetrachloride 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Chlorobenzene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Chloroethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Chloroform 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Chloromethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794cis-1,2-Dichloroethene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R1215800.00183 0.000794cis-1,3-Dichloropropene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Dibromochloromethane 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Ethylbenzene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794m,p-Xylene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.00159 0.00159Methyl tert-butyl ether 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Methylene chloride 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.00397 0.00397o-Xylene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Total Xylenes 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.00159 0.00159Styrene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Tetrachloroethene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R1215800.0317 0.00159Toluene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794trans-1,2-Dichloroethene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794trans-1,3-Dichloropropene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Trichloroethene 07/02/2020 3:30 PMmg/Kg-dry 0.64 R1215800.00556 0.000794

Created: 7/13/2020 3:12:06 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/02/2020 3:30 PMmg/Kg-dry 0.64 R121580<0.000794 0.000794Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 3:30 PM%Rec 0.64 R121580105 80-130 SS: Dibromofluoromethane 07/02/2020 3:30 PM%Rec 0.64 R121580105 76.1-120 SS: Toluene-d8 07/02/2020 3:30 PM%Rec 0.64 R121580100 85-115



Created: 7/13/2020 3:12:06 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




1,1-Dichloroethene 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.1001,2-Dichloroethane 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.1002-Butanone 07/09/2020 2:19 PMmg/L 100 67126<0.500 0.500Benzene 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Carbon tetrachloride 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Chlorobenzene 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Chloroform 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Tetrachloroethene 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Trichloroethene 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Vinyl chloride 07/09/2020 2:19 PMmg/L 100 67126<0.100 0.100Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 2:19 PM%Rec 100 67126102 70-130 SS: Dibromofluoromethane 07/09/2020 2:19 PM%Rec 100 6712688.8 70-130 SS: Toluene-d8 07/09/2020 2:19 PM%Rec 100 67126106 70-130



Created: 7/13/2020 3:12:07 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Chloroform 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Chloromethane 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460cis-1,2-Dichloroethene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460cis-1,3-Dichloropropene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Dibromochloromethane 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Ethylbenzene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460m,p-Xylene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0921 0.0921Methyl tert-butyl ether 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Methylene chloride 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.230 0.230o-Xylene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Total Xylenes 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0921 0.0921Styrene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Tetrachloroethene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R1215841.90 0.0921Toluene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460trans-1,2-Dichloroethene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460trans-1,3-Dichloropropene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Trichloroethene 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Vinyl chloride 07/02/2020 3:16 PMmg/Kg-dry 42.08 R121584<0.0460 0.0460Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/02/2020 3:16 PM%Rec 42.08 R121584108 80-130 SS: Dibromofluoromethane 07/02/2020 3:16 PM%Rec 42.08 R12158479.3 76.1-120 SS: Toluene-d8 07/02/2020 3:16 PM%Rec 42.08 R121584103 85-115



Created: 7/13/2020 3:12:08 PM3DJH��RI��



Laboratory Results


Client Sample ID: B6027 (0-3)Lab ID: 2006L03-010 Date Received: 06/26/2020 4:05 PM Collection Date: 06/26/2020 9:17 AM

Matrix: SOIL





Created: 7/13/2020 3:12:09 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:09 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:12:10 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:11 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:12:11 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:12 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:12:13 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:14 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,1,1-Trichloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,1,2,2-Tetrachloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,1,2-Trichloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,1-Dichloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,1-Dichloroethene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,2-Dichloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005271,2-Dichloropropane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.005272-Butanone 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.0527 0.05272-Hexanone 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.132 0.1324-Methyl-2-pentanone 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.132 0.132Acetone 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.132 0.132Benzene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00132 0.00132Bromodichloromethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Bromoform 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Bromomethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Carbon disulfide 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G0.00696 0.00527Carbon tetrachloride 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Chlorobenzene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Chloroethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Chloroform 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Chloromethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527cis-1,2-Dichloroethene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527cis-1,3-Dichloropropene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Dibromochloromethane 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Ethylbenzene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527m,p-Xylene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.0105 0.0105Methyl tert-butyl ether 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Methylene chloride 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.0264 0.0264o-Xylene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Total Xylenes 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.0105 0.0105Styrene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Tetrachloroethene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.0105 0.0105Toluene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527trans-1,2-Dichloroethene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527trans-1,3-Dichloropropene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527Trichloroethene 07/09/2020 4:45 PMmg/Kg-dry 4.68 R121849G<0.00527 0.00527

Created: 7/13/2020 3:12:14 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:15 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,1,1-Trichloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,1,2,2-Tetrachloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,1,2-Trichloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,1-Dichloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,1-Dichloroethene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,2-Dichloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.002131,2-Dichloropropane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G0.00356 0.002132-Butanone 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.0213 0.02132-Hexanone 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.0533 0.05334-Methyl-2-pentanone 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.0533 0.0533Acetone 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.0533 0.0533Benzene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.000533 0.000533Bromodichloromethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Bromoform 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Bromomethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Carbon disulfide 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G0.00561 0.00213Carbon tetrachloride 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Chlorobenzene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Chloroethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Chloroform 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Chloromethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213cis-1,2-Dichloroethene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213cis-1,3-Dichloropropene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Dibromochloromethane 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Ethylbenzene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213m,p-Xylene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00427 0.00427Methyl tert-butyl ether 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Methylene chloride 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.0107 0.0107o-Xylene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Total Xylenes 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00427 0.00427Styrene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Tetrachloroethene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00427 0.00427Toluene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213trans-1,2-Dichloroethene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213trans-1,3-Dichloropropene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213Trichloroethene 07/09/2020 3:45 PMmg/Kg-dry 1.96 R121849G<0.00213 0.00213

Created: 7/13/2020 3:12:16 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:17 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,1,1-Trichloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,1,2,2-Tetrachloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,1,2-Trichloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,1-Dichloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,1-Dichloroethene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,2-Dichloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004971,2-Dichloropropane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.004972-Butanone 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.0497 0.04972-Hexanone 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.124 0.1244-Methyl-2-pentanone 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.124 0.124Acetone 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.124 0.124Benzene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00124 0.00124Bromodichloromethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Bromoform 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Bromomethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Carbon disulfide 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.0123 0.00497Carbon tetrachloride 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Chlorobenzene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Chloroethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Chloroform 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.00502 0.00497Chloromethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497cis-1,2-Dichloroethene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.0585 0.00497cis-1,3-Dichloropropene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Dibromochloromethane 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Ethylbenzene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497m,p-Xylene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00995 0.00995Methyl tert-butyl ether 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Methylene chloride 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.0249 0.0249o-Xylene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Total Xylenes 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00995 0.00995Styrene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Tetrachloroethene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.297 0.00995Toluene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497trans-1,2-Dichloroethene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.00910 0.00497trans-1,3-Dichloropropene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Trichloroethene 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G0.00766 0.00497

Created: 7/13/2020 3:12:17 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/09/2020 5:46 PMmg/Kg-dry 4.53 R121849G<0.00497 0.00497Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 5:46 PM%Rec 4.53 R121849SG77.1 80-130 SS: Dibromofluoromethane 07/09/2020 5:46 PM%Rec 4.53 R121849G108 76.1-120 SS: Toluene-d8 07/09/2020 5:46 PM%Rec 4.53 R121849G88.8 85-115



Created: 7/13/2020 3:12:18 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 7/13/2020 3:12:19 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 7/13/2020 3:12:20 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,1,1-Trichloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,1,2,2-Tetrachloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,1,2-Trichloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,1-Dichloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,1-Dichloroethene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,2-Dichloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009771,2-Dichloropropane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.0009772-Butanone 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.00977 0.009772-Hexanone 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.0244 0.02444-Methyl-2-pentanone 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.0244 0.0244Acetone 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.0244 0.0244Benzene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000244 0.000244Bromodichloromethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Bromoform 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Bromomethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Carbon disulfide 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Carbon tetrachloride 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Chlorobenzene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Chloroethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Chloroform 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Chloromethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977cis-1,2-Dichloroethene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R1217470.000996 0.000977cis-1,3-Dichloropropene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Dibromochloromethane 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Ethylbenzene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977m,p-Xylene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.00195 0.00195Methyl tert-butyl ether 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Methylene chloride 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.00488 0.00488o-Xylene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Total Xylenes 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.00195 0.00195Styrene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Tetrachloroethene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R1217470.0839 0.00195Toluene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R1217470.00120 0.000977trans-1,2-Dichloroethene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977trans-1,3-Dichloropropene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Trichloroethene 07/08/2020 6:44 PMmg/Kg-dry 0.8 R1217470.00134 0.000977

Created: 7/13/2020 3:12:20 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 07/08/2020 6:44 PMmg/Kg-dry 0.8 R121747<0.000977 0.000977Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/08/2020 6:44 PM%Rec 0.8 R121747S78.4 80-130 SS: Dibromofluoromethane 07/08/2020 6:44 PM%Rec 0.8 R121747109 76.1-120 SS: Toluene-d8 07/08/2020 6:44 PM%Rec 0.8 R12174793.9 85-115



Created: 7/13/2020 3:12:20 PM3DJH��RI��


PREP DATES REPORT

Lab Order: 2006L03Client: Pioneer Environmental Services LLCProject: 19-0338-102 7613-7615 W Lake S




July 13, 2020Report Date:

Batch ID

2006L03-001A 6/26/2020 8:03:00 AM CLOSED SYSTEM P&T VOC Prep

7/6/202067047


7/6/202067047


7/6/202067047

2006L03-003C TCLP SAMPLE PREP ZHE (VOCS)

7/8/202067126


7/6/202067047


7/6/202067047


7/6/202067047


7/8/202067126


7/6/202067047


7/6/202067047


7/6/202067047


7/8/202067126


7/6/202067047


7/6/202067047


7/6/202067047


7/9/202067146


7/9/202067146


7/9/202067146


7/9/202067146


7/9/202067146


7/9/202067146

Created: 7/13/2020 3:12:21 PM3DJH��RI��

7/13/2020

Qualifier Definitions2006L03

Date:

WO#:



Created: 7/13/2020 3:12:21 PM3DJH��RI��

3DJH��RI��

July 13, 2020



RE: 19-0338-102 7613-7615 Lake St. River Forest

Workorder: 2007579

FAX: (773) 722-9201TEL: (773) 722-9200




Keith Sinon




Sincerely,

Project Manager



Created: 7/13/2020 1:53:06 PM3DJH��RI��



Project: 19-0338-102 7613-7615 Lake St. River ForestClient: Pioneer Engineering & Environmental Servi July 13, 2020Date:

WorkOrder: 2007579PO #: 19-0338-102







8260_W:Sample 2007579-001A: S=The MS and the MSD percent recoveries for the following analytes were outside laboratory control limits (70% - 130%):

1,1-Dichloroethene; 59.3%, 53.2%Benzene; 64.7%, 57.6%Trichloroethene; 59.2%, 52.5%Toluene; 63.4%, 56.4%

Created: 7/13/2020 1:53:08 PM3DJH��RI��

Project: 19-0338-102 7613-7615 Lake St. River ForestClient: Pioneer Engineering & Environmental Servi July 13, 2020Date:

WorkOrder: 2007579PO #: 19-0338-102



Chlorobenzene; 54.7%, 48.5%

Created: 7/13/2020 1:53:08 PM3DJH��RI��

Project Name: 19-0338-102 7613-7615 Lake St. River ForestClient ID: Pioneer Engineering & Environmental Services L


Laboratory Results

Workorder: 2007579Report Date: July 13, 2020

Client Sample ID: MW-104-30Lab ID: 2007579-001 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 10:22 AM

Matrix: GROUNDWATER



VOLATILE ORGANIC COMPOUNDS Analyst: RWMMethod: EPA-SW8260B-Rev 2, Dec-96

Total 1,3-Dichloropropene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,1,1-Trichloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,1,2,2-Tetrachloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,1,2-Trichloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,1-Dichloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,1-Dichloroethene 07/09/2020 3:09 PMmg/L 1 R121813S<0.00100 0.001001,2-Dibromo-3-chloropropane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,2-Dibromoethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,2-Dichlorobenzene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,2-Dichloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,2-Dichloropropane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001001,4-Dichlorobenzene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.001002-Butanone 07/09/2020 3:09 PMmg/L 1 R121813<0.0100 0.01002-Hexanone 07/09/2020 3:09 PMmg/L 1 R121813<0.0250 0.02504-Methyl-2-pentanone 07/09/2020 3:09 PMmg/L 1 R121813<0.0250 0.0250Acetone 07/09/2020 3:09 PMmg/L 1 R121813<0.0250 0.0250Benzene 07/09/2020 3:09 PMmg/L 1 R121813S<0.00100 0.00100Bromodichloromethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Bromoform 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Bromomethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Carbon disulfide 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Carbon tetrachloride 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Chlorobenzene 07/09/2020 3:09 PMmg/L 1 R121813S<0.00100 0.00100Chloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Chloroform 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Chloromethane 07/09/2020 3:09 PMmg/L 1 R1218130.00300 0.00100cis-1,2-Dichloroethene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100cis-1,3-Dichloropropene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Dibromochloromethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Dichlorodifluoromethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Ethylbenzene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Hexachloroethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Isopropylbenzene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100m,p-Xylene 07/09/2020 3:09 PMmg/L 1 R121813<0.00200 0.00200Methyl tert-butyl ether 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Methylene chloride 07/09/2020 3:09 PMmg/L 1 R121813<0.00500 0.00500Naphthalene 07/09/2020 3:09 PMmg/L 1 R121813<0.00200 0.00200

Created: 7/13/2020 1:53:09 PM3DJH��RI��



Laboratory Results


Client Sample ID: MW-104-30Lab ID: 2007579-001 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 10:22 AM

Matrix: GROUNDWATER




o-Xylene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Total Xylenes 07/09/2020 3:09 PMmg/L 1 R121813<0.00200 0.00200Styrene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Tetrachloroethene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Toluene 07/09/2020 3:09 PMmg/L 1 R121813S<0.00100 0.00100trans-1,2-Dichloroethene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100trans-1,3-Dichloropropene 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Trichloroethene 07/09/2020 3:09 PMmg/L 1 R121813S<0.00100 0.00100Trichlorofluoromethane 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Vinyl acetate 07/09/2020 3:09 PMmg/L 1 R121813<0.0250 0.0250Vinyl chloride 07/09/2020 3:09 PMmg/L 1 R121813<0.00100 0.00100Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 3:09 PM%Rec 1 R121813101 80-130 SS: Dibromofluoromethane 07/09/2020 3:09 PM%Rec 1 R12181389.7 76.1-120 SS: Toluene-d8 07/09/2020 3:09 PM%Rec 1 R121813106 85-115

VOCS, EXTENDED ANALYTE LIST Analyst: RWMMethod: EPA-8260B-Rev 2, Dec-96

1,4-Dioxane 07/09/2020 3:09 PMmg/L 1 R121813<0.100 0.100n-Butanol 07/09/2020 3:09 PMmg/L 1 R121813c<0.100 0.100

Created: 7/13/2020 1:53:09 PM3DJH��RI��



Laboratory Results


Client Sample ID: MW-6027Lab ID: 2007579-002 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 10:50 AM

Matrix: GROUNDWATER




Total 1,3-Dichloropropene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,1,1-Trichloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,1,2,2-Tetrachloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,1,2-Trichloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,1-Dichloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,1-Dichloroethene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,2-Dibromo-3-chloropropane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,2-Dibromoethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,2-Dichlorobenzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,2-Dichloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,2-Dichloropropane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001001,4-Dichlorobenzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.001002-Butanone 07/09/2020 3:41 PMmg/L 1 R121813<0.0100 0.01002-Hexanone 07/09/2020 3:41 PMmg/L 1 R121813<0.0250 0.02504-Methyl-2-pentanone 07/09/2020 3:41 PMmg/L 1 R121813<0.0250 0.0250Acetone 07/09/2020 3:41 PMmg/L 1 R121813<0.0250 0.0250Benzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Bromodichloromethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Bromoform 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Bromomethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Carbon disulfide 07/09/2020 3:41 PMmg/L 1 R1218130.00126 0.00100Carbon tetrachloride 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Chlorobenzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Chloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Chloroform 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Chloromethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100cis-1,2-Dichloroethene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100cis-1,3-Dichloropropene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Dibromochloromethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Dichlorodifluoromethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Ethylbenzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Hexachloroethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Isopropylbenzene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100m,p-Xylene 07/09/2020 3:41 PMmg/L 1 R121813<0.00200 0.00200Methyl tert-butyl ether 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Methylene chloride 07/09/2020 3:41 PMmg/L 1 R121813<0.00500 0.00500Naphthalene 07/09/2020 3:41 PMmg/L 1 R121813<0.00200 0.00200

Created: 7/13/2020 1:53:09 PM3DJH��RI��



Laboratory Results


Client Sample ID: MW-6027Lab ID: 2007579-002 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 10:50 AM

Matrix: GROUNDWATER




o-Xylene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Total Xylenes 07/09/2020 3:41 PMmg/L 1 R121813<0.00200 0.00200Styrene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Tetrachloroethene 07/09/2020 3:41 PMmg/L 1 R1218130.00692 0.00100Toluene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100trans-1,2-Dichloroethene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100trans-1,3-Dichloropropene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Trichloroethene 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Trichlorofluoromethane 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Vinyl acetate 07/09/2020 3:41 PMmg/L 1 R121813<0.0250 0.0250Vinyl chloride 07/09/2020 3:41 PMmg/L 1 R121813<0.00100 0.00100Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 3:41 PM%Rec 1 R121813102 80-130 SS: Dibromofluoromethane 07/09/2020 3:41 PM%Rec 1 R12181389.3 76.1-120 SS: Toluene-d8 07/09/2020 3:41 PM%Rec 1 R121813107 85-115



Created: 7/13/2020 1:53:09 PM3DJH��RI��



Laboratory Results


Client Sample ID: MW-6019Lab ID: 2007579-003 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 12:53 PM

Matrix: GROUNDWATER




Total 1,3-Dichloropropene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,1,1-Trichloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,1,2,2-Tetrachloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,1,2-Trichloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,1-Dichloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,1-Dichloroethene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,2-Dibromo-3-chloropropane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,2-Dibromoethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,2-Dichlorobenzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,2-Dichloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,2-Dichloropropane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05001,4-Dichlorobenzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.05002-Butanone 07/09/2020 7:26 PMmg/L 50 R121813<0.500 0.5002-Hexanone 07/09/2020 7:26 PMmg/L 50 R121813<1.25 1.254-Methyl-2-pentanone 07/09/2020 7:26 PMmg/L 50 R121813<1.25 1.25Acetone 07/09/2020 7:26 PMmg/L 50 R121813<1.25 1.25Benzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Bromodichloromethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Bromoform 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Bromomethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Carbon disulfide 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Carbon tetrachloride 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Chlorobenzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Chloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Chloroform 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Chloromethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500cis-1,2-Dichloroethene 07/09/2020 7:26 PMmg/L 50 R1218131.94 0.0500cis-1,3-Dichloropropene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Dibromochloromethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Dichlorodifluoromethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Ethylbenzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Hexachloroethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Isopropylbenzene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500m,p-Xylene 07/09/2020 7:26 PMmg/L 50 R121813<0.100 0.100Methyl tert-butyl ether 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Methylene chloride 07/09/2020 7:26 PMmg/L 50 R121813<0.250 0.250Naphthalene 07/09/2020 7:26 PMmg/L 50 R121813<0.100 0.100

Created: 7/13/2020 1:53:10 PM3DJH��RI��



Laboratory Results


Client Sample ID: MW-6019Lab ID: 2007579-003 Date Received: 07/08/2020 12:53 PM Collection Date: 07/07/2020 12:53 PM

Matrix: GROUNDWATER




o-Xylene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Total Xylenes 07/09/2020 7:26 PMmg/L 50 R121813<0.100 0.100Styrene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Tetrachloroethene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Toluene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500trans-1,2-Dichloroethene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500trans-1,3-Dichloropropene 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Trichloroethene 07/09/2020 7:26 PMmg/L 50 R1218130.321 0.0500Trichlorofluoromethane 07/09/2020 7:26 PMmg/L 50 R121813<0.0500 0.0500Vinyl acetate 07/09/2020 7:26 PMmg/L 50 R121813<1.25 1.25Vinyl chloride 07/09/2020 7:26 PMmg/L 50 R1218130.418 0.0500Internal Quality Control Compounds SS: 4-Bromofluorobenzene 07/09/2020 7:26 PM%Rec 50 R121813102 80-130 SS: Dibromofluoromethane 07/09/2020 7:26 PM%Rec 50 R12181388.8 76.1-120 SS: Toluene-d8 07/09/2020 7:26 PM%Rec 50 R121813106 85-115



Created: 7/13/2020 1:53:10 PM3DJH��RI��

7/13/2020

Qualifier Definitions2007579

Date:

WO#:



Created: 7/13/2020 1:53:10 PM3DJH��RI��

3DJH��RI��

August 20, 2020



RE: 19-0338-102 7613 Lake St River Forest

Workorder: 2008A94

FAX: (773) 722-9201TEL: (773) 722-9200




Keith Sinon




Sincerely,

Project Manager



Created: 8/20/2020 4:30:00 PM3DJH��RI��



Project: 19-0338-102 7613 Lake St River ForestClient: Pioneer Engineering & Environmental Servi August 20, 2020Date:

WorkOrder: 2008A94PO #: 19-0338-102







Volatiles:Samples 2008A94-003A and -004A: G=Samples were analyzed from the jar provided via method 5030 for Acetone and Tetrachloroethene.

Volatiles:Sample 2008A94-009A: G= The sample exhibited internal standard suppression due to sample matrix. Affected analytes were reported from dilutions, resulting in elevated reporting limits. Sample was analyzed from the jar provided via method 5030.

Created: 8/20/2020 4:30:02 PM3DJH��RI��

Project: 19-0338-102 7613 Lake St River ForestClient: Pioneer Engineering & Environmental Servi August 20, 2020Date:

WorkOrder: 2008A94PO #: 19-0338-102



Created: 8/20/2020 4:30:02 PM3DJH��RI��

Project Name: 19-0338-102 7613 Lake St River ForestClient ID: Pioneer Engineering & Environmental Services L


Laboratory Results

Workorder: 2008A94Report Date: August 20, 2020

Client Sample ID: CB101 (7.5-10)Lab ID: 2008A94-001 Date Received: 08/13/2020 11:47 AM Collection Date: 08/12/2020 2:00 PM

Matrix: SOIL





Created: 8/20/2020 4:30:03 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 08/14/2020 6:11 PMmg/Kg-dry 0.74 R123240<0.000785 0.000785Internal Quality Control Compounds SS: 4-Bromofluorobenzene 08/14/2020 6:11 PM%Rec 0.74 R123240S65.8 80-130 SS: Dibromofluoromethane 08/14/2020 6:11 PM%Rec 0.74 R12324096.7 76.1-120 SS: Toluene-d8 08/14/2020 6:11 PM%Rec 0.74 R12324090.6 85-115

PERCENT MOISTURE Analyst: STPMethod: ASTM-D2216-Rev 2005


Created: 8/20/2020 4:30:03 PM3DJH��RI��



Laboratory Results


Client Sample ID: CB101 (10-12.5)Lab ID: 2008A94-002 Date Received: 08/13/2020 11:47 AM Collection Date: 08/12/2020 2:08 PM

Matrix: SOIL




Total 1,3-Dichloropropene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,1,1-Trichloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,1,2,2-Tetrachloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,1,2-Trichloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,1-Dichloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,1-Dichloroethene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,2-Dichloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03921,2-Dichloropropane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.03922-Butanone 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.392 0.3922-Hexanone 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.981 0.9814-Methyl-2-pentanone 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.981 0.981Acetone 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.981 0.981Benzene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.00981 0.00981Bromodichloromethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Bromoform 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Bromomethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Carbon disulfide 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Carbon tetrachloride 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Chlorobenzene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Chloroethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Chloroform 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Chloromethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392cis-1,2-Dichloroethene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R1233090.127 0.0392cis-1,3-Dichloropropene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Dibromochloromethane 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Ethylbenzene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392m,p-Xylene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0785 0.0785Methyl tert-butyl ether 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Methylene chloride 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.196 0.196o-Xylene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Total Xylenes 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0785 0.0785Styrene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Tetrachloroethene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R1233092.43 0.0785Toluene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392trans-1,2-Dichloroethene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392trans-1,3-Dichloropropene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R123309<0.0392 0.0392Trichloroethene 08/17/2020 9:52 PMmg/Kg-dry 33.9 R1233090.257 0.0392

Created: 8/20/2020 4:30:04 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:04 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,1,1-Trichloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,1,2,2-Tetrachloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,1,2-Trichloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,1-Dichloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,1-Dichloroethene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,2-Dichloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007491,2-Dichloropropane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.0007492-Butanone 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.00749 0.007492-Hexanone 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.0187 0.01874-Methyl-2-pentanone 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.0187 0.0187Acetone 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.0187 0.0187Benzene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000187 0.000187Bromodichloromethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Bromoform 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Bromomethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Carbon disulfide 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Carbon tetrachloride 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Chlorobenzene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Chloroethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Chloroform 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Chloromethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749cis-1,2-Dichloroethene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749cis-1,3-Dichloropropene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Dibromochloromethane 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Ethylbenzene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749m,p-Xylene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.00150 0.00150Methyl tert-butyl ether 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Methylene chloride 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.00375 0.00375o-Xylene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Total Xylenes 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.00150 0.00150Styrene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Tetrachloroethene 08/17/2020 6:00 PMmg/Kg-dry 1.93 R123296G0.00594 0.00445Toluene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749trans-1,2-Dichloroethene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749trans-1,3-Dichloropropene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Trichloroethene 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749

Created: 8/20/2020 4:30:05 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 08/14/2020 6:41 PMmg/Kg-dry 0.65 R123240<0.000749 0.000749Internal Quality Control Compounds SS: 4-Bromofluorobenzene 08/14/2020 6:41 PM%Rec 0.65 R123240S77.3 80-130 SS: Dibromofluoromethane 08/14/2020 6:41 PM%Rec 0.65 R12324090.0 76.1-120 SS: Toluene-d8 08/14/2020 6:41 PM%Rec 0.65 R12324093.5 85-115



Created: 8/20/2020 4:30:05 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,1,1-Trichloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,1,2,2-Tetrachloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,1,2-Trichloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,1-Dichloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,1-Dichloroethene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,2-Dichloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008571,2-Dichloropropane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.0008572-Butanone 08/14/2020 7:11 PMmg/Kg-dry 0.76 R1232400.0565 0.008572-Hexanone 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.0214 0.02144-Methyl-2-pentanone 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.0214 0.0214Acetone 08/17/2020 6:29 PMmg/Kg-dry 9.53 R123296G0.887 0.269Benzene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R1232400.000317 0.000214Bromodichloromethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Bromoform 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Bromomethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Carbon disulfide 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Carbon tetrachloride 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Chlorobenzene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Chloroethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Chloroform 08/14/2020 7:11 PMmg/Kg-dry 0.76 R1232400.00104 0.000857Chloromethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857cis-1,2-Dichloroethene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857cis-1,3-Dichloropropene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Dibromochloromethane 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Ethylbenzene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857m,p-Xylene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.00171 0.00171Methyl tert-butyl ether 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Methylene chloride 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.00428 0.00428o-Xylene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Total Xylenes 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.00171 0.00171Styrene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Tetrachloroethene 08/17/2020 6:29 PMmg/Kg-dry 9.53 R123296G0.128 0.0215Toluene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857trans-1,2-Dichloroethene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857trans-1,3-Dichloropropene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R123240<0.000857 0.000857Trichloroethene 08/14/2020 7:11 PMmg/Kg-dry 0.76 R1232400.000874 0.000857

Created: 8/20/2020 4:30:06 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:06 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 8/20/2020 4:30:06 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 08/17/2020 11:06 PMmg/Kg-dry 317.3 R123309<0.359 0.359Internal Quality Control Compounds SS: 4-Bromofluorobenzene 08/17/2020 11:06 PM%Rec 317.3 R12330997.5 80-130 SS: Dibromofluoromethane 08/17/2020 11:06 PM%Rec 317.3 R12330991.0 76.1-120 SS: Toluene-d8 08/17/2020 11:06 PM%Rec 317.3 R123309103 85-115



Created: 8/20/2020 4:30:07 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 8/20/2020 4:30:07 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:08 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 8/20/2020 4:30:08 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:09 PM3DJH��RI��



Laboratory Results



Matrix: SOIL





Created: 8/20/2020 4:30:09 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 08/18/2020 2:51 PMmg/Kg-dry 40.48 R1233470.317 0.0466Internal Quality Control Compounds SS: 4-Bromofluorobenzene 08/18/2020 2:51 PM%Rec 40.48 R123347106 80-130 SS: Dibromofluoromethane 08/18/2020 2:51 PM%Rec 40.48 R12334783.2 76.1-120 SS: Toluene-d8 08/18/2020 2:51 PM%Rec 40.48 R123347101 85-115



Created: 8/20/2020 4:30:10 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,1,1-Trichloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,1,2,2-Tetrachloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,1,2-Trichloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,1-Dichloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,1-Dichloroethene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,2-Dichloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002211,2-Dichloropropane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.002212-Butanone 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.0221 0.02212-Hexanone 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.0552 0.05524-Methyl-2-pentanone 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.0552 0.0552Acetone 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.0552 0.0552Benzene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.000552 0.000552Bromodichloromethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Bromoform 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Bromomethane 08/19/2020 2:20 PMmg/Kg-dry 1.96 R123400G0.00352 0.00223Carbon disulfide 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G0.0111 0.00221Carbon tetrachloride 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Chlorobenzene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Chloroethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Chloroform 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Chloromethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221cis-1,2-Dichloroethene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G0.00788 0.00221cis-1,3-Dichloropropene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Dibromochloromethane 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Ethylbenzene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221m,p-Xylene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00442 0.00442Methyl tert-butyl ether 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Methylene chloride 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.0110 0.0110o-Xylene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Total Xylenes 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00442 0.00442Styrene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Tetrachloroethene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G0.156 0.00442Toluene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221trans-1,2-Dichloroethene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221trans-1,3-Dichloropropene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G<0.00221 0.00221Trichloroethene 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G0.0144 0.00221

Created: 8/20/2020 4:30:10 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Vinyl chloride 08/18/2020 4:00 PMmg/Kg-dry 1.94 R123339G0.00978 0.00221Internal Quality Control Compounds SS: 4-Bromofluorobenzene 08/18/2020 4:00 PM%Rec 1.94 R123339SG66.4 80-130 SS: Dibromofluoromethane 08/18/2020 4:00 PM%Rec 1.94 R123339G106 76.1-120 SS: Toluene-d8 08/18/2020 4:00 PM%Rec 1.94 R123339SG83.1 85-115



Created: 8/20/2020 4:30:11 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,1,1-Trichloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,1,2,2-Tetrachloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,1,2-Trichloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,1-Dichloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,1-Dichloroethene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,2-Dichloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04391,2-Dichloropropane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.04392-Butanone 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.439 0.4392-Hexanone 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<1.10 1.104-Methyl-2-pentanone 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<1.10 1.10Acetone 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<1.10 1.10Benzene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0110 0.0110Bromodichloromethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Bromoform 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Bromomethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Carbon disulfide 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Carbon tetrachloride 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Chlorobenzene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Chloroethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Chloroform 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Chloromethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439cis-1,2-Dichloroethene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439cis-1,3-Dichloropropene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Dibromochloromethane 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Ethylbenzene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439m,p-Xylene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R1233470.160 0.0878Methyl tert-butyl ether 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Methylene chloride 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.219 0.219o-Xylene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Total Xylenes 08/18/2020 3:16 PMmg/Kg-dry 40.07 R1233470.160 0.0878Styrene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Tetrachloroethene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R1233471.32 0.0878Toluene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439trans-1,2-Dichloroethene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439trans-1,3-Dichloropropene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R123347<0.0439 0.0439Trichloroethene 08/18/2020 3:16 PMmg/Kg-dry 40.07 R1233470.0474 0.0439

Created: 8/20/2020 4:30:11 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:11 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,1,1-Trichloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,1,2,2-Tetrachloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,1,2-Trichloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,1-Dichloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,1-Dichloroethene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,2-Dichloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.51,2-Dichloropropane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.52-Butanone 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<365 3652-Hexanone 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<912 9124-Methyl-2-pentanone 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<912 912Acetone 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<912 912Benzene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<9.12 9.12Bromodichloromethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Bromoform 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Bromomethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Carbon disulfide 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Carbon tetrachloride 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Chlorobenzene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Chloroethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Chloroform 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Chloromethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5cis-1,2-Dichloroethene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5cis-1,3-Dichloropropene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Dibromochloromethane 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Ethylbenzene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5m,p-Xylene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<72.9 72.9Methyl tert-butyl ether 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Methylene chloride 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<182 182o-Xylene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Total Xylenes 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<72.9 72.9Styrene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Tetrachloroethene 08/18/2020 9:28 PMmg/Kg-dry 32675 R1233472,850 72.9Toluene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5trans-1,2-Dichloroethene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5trans-1,3-Dichloropropene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5Trichloroethene 08/18/2020 9:28 PMmg/Kg-dry 32675 R123347<36.5 36.5

Created: 8/20/2020 4:30:12 PM3DJH��RI��



Laboratory Results



Matrix: SOIL







Created: 8/20/2020 4:30:12 PM3DJH��RI��



Laboratory Results



Matrix: SOIL




Total 1,3-Dichloropropene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,1,1-Trichloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,1,2,2-Tetrachloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,1,2-Trichloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,1-Dichloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,1-Dichloroethene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,2-Dichloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.001,2-Dichloropropane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.002-Butanone 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<40.0 40.02-Hexanone 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<100 1004-Methyl-2-pentanone 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<100 100Acetone 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<100 100Benzene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<1.00 1.00Bromodichloromethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Bromoform 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Bromomethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Carbon disulfide 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Carbon tetrachloride 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Chlorobenzene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Chloroethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Chloroform 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Chloromethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00cis-1,2-Dichloroethene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00cis-1,3-Dichloropropene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Dibromochloromethane 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Ethylbenzene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00m,p-Xylene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<8.01 8.01Methyl tert-butyl ether 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Methylene chloride 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<20.0 20.0o-Xylene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Total Xylenes 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<8.01 8.01Styrene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Tetrachloroethene 08/18/2020 9:03 PMmg/Kg-dry 3544 R12334789.9 8.01Toluene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00trans-1,2-Dichloroethene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00trans-1,3-Dichloropropene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00Trichloroethene 08/18/2020 9:03 PMmg/Kg-dry 3544 R123347<4.00 4.00

Created: 8/20/2020 4:30:13 PM3DJH��RI��



Laboratory Results



Matrix: SOIL






Percent Moisture 08/18/2020 11:15 AMwt% 1 R123306c12 1.0

Created: 8/20/2020 4:30:13 PM3DJH��RI��


PREP DATES REPORT

Lab Order: 2008A94Client: Pioneer Environmental Services LLCProject: 19-0338-102 7613 Lake St River F




August 20, 2020Report Date:

Batch ID

2008A94-001A 8/12/2020 2:00:00 PM CLOSED SYSTEM P&T VOC Prep

8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906


8/14/202067906

Created: 8/20/2020 4:30:13 PM3DJH��RI��

8/20/2020

Qualifier Definitions2008A94

Date:

WO#:



Created: 8/20/2020 4:30:14 PM3DJH��RI��

3DJH��RI��

October 16, 2020



RE: 19-0338-102 7613 Lake St River Forest

Workorder: 2010649

FAX: (773) 722-9201TEL: (773) 722-9200




Keith Sinon




Sincerely,

Project Manager



Created: 10/16/2020 2:52:21 PM3DJH��RI��



Project: 19-0338-102 7613 Lake St River ForestClient: Pioneer Engineering & Environmental Servi October 16, 2020Date:

WorkOrder: 2010649PO #: 19-0338-102

Chain of Custody #:QC Level:






Created: 10/16/2020 2:52:24 PM3DJH��RI��



Laboratory Results

Workorder: 2010649Report Date: October 16, 2020

Client Sample ID: CB-104-2 (10-12.5)Lab ID: 2010649-001 Date Received: 10/09/2020 3:05 PM Collection Date: 10/09/2020 9:30 AM

Matrix: SOIL



VOLATILE ORGANIC COMPOUNDS Analyst: SPMethod: EPA-8260B-Rev 2, Dec-96

Total 1,3-Dichloropropene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,1,1-Trichloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,1,2,2-Tetrachloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,1,2-Trichloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,1-Dichloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,1-Dichloroethene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,2-Dichloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.451,2-Dichloropropane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.452-Butanone 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<44.5 44.52-Hexanone 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<111 1114-Methyl-2-pentanone 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<111 111Acetone 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<111 111Benzene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<1.11 1.11Bromodichloromethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Bromoform 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Bromomethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Carbon disulfide 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Carbon tetrachloride 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Chlorobenzene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Chloroethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Chloroform 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Chloromethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45cis-1,2-Dichloroethene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586117 4.45cis-1,3-Dichloropropene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Dibromochloromethane 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Ethylbenzene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45m,p-Xylene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<8.90 8.90Methyl tert-butyl ether 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Methylene chloride 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<22.2 22.2o-Xylene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Total Xylenes 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<8.90 8.90Styrene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Tetrachloroethene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586722 8.90Toluene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45trans-1,2-Dichloroethene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45trans-1,3-Dichloropropene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Trichloroethene 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586226 4.45

Created: 10/16/2020 2:52:24 PM3DJH��RI��



Laboratory Results


Client Sample ID: CB-104-2 (10-12.5)Lab ID: 2010649-001 Date Received: 10/09/2020 3:05 PM Collection Date: 10/09/2020 9:30 AM

Matrix: SOIL




Vinyl chloride 10/15/2020 4:37 PMmg/Kg-dry 3952 R125586<4.45 4.45Internal Quality Control Compounds SS: 4-Bromofluorobenzene 10/15/2020 4:37 PM%Rec 3952 R12558694.1 80-130 SS: Dibromofluoromethane 10/15/2020 4:37 PM%Rec 3952 R12558684.8 76.1-120 SS: Toluene-d8 10/15/2020 4:37 PM%Rec 3952 R12558694.4 85-115



Created: 10/16/2020 2:52:25 PM3DJH��RI��



Laboratory Results


Client Sample ID: CB-104-2 (12.5-15)Lab ID: 2010649-002 Date Received: 10/09/2020 3:05 PM Collection Date: 10/09/2020 9:35 AM

Matrix: SOIL





Created: 10/16/2020 2:52:25 PM3DJH��RI��



Laboratory Results


Client Sample ID: CB-104-2 (12.5-15)Lab ID: 2010649-002 Date Received: 10/09/2020 3:05 PM Collection Date: 10/09/2020 9:35 AM

Matrix: SOIL







Created: 10/16/2020 2:52:25 PM3DJH��RI��


PREP DATES REPORT

Lab Order: 2010649Client: Pioneer Environmental Services LLCProject: 19-0338-102 7613 Lake St River F




October 16, 2020Report Date:

Batch ID

2010649-001A 10/9/2020 9:30:00 AM CLOSED SYSTEM P&T VOC Prep

10/9/202069082

2010649-002A 10/9/2020 9:35:00 AM CLOSED SYSTEM P&T VOC Prep

10/9/202069082

Created: 10/16/2020 2:52:25 PM3DJH��RI��

10/16/2020

Qualifier Definitions2010649

Date:

WO#:



Created: 10/16/2020 2:52:26 PM3DJH��RI��

3DJH��RI��

#=CL#

August 14, 2020

LIMS USE: FR - MEGANLIMS OBJECT ID: 10527892

10527892Project:Pace Project No.:

RE:

Megan Wells-PaskePioneer Environmental Services2753 West 31st StreetChicago, IL 60608

19-0338-102 7613 Lake St, Rive


Enclosed are the analytical results for sample(s) received by the laboratory on August 10, 2020. The results relate only tothe samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and thelaboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.

The test results provided in this final report were generated by each of the following laboratories within the Pace Network:• Pace Analytical Services - Minneapolis

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Ashley [email protected]

Project Manager(612)607-1700

Enclosures

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, LLC.

Pace Analytical Services, LLC1700 Elm Street - Suite 200

Minneapolis, MN 55414(612)607-1700

Page 1 of 20

#=CP#

CERTIFICATIONS

Pace Project No.:Project:

1052789219-0338-102 7613 Lake St, Rive

Pace Analytical Services - Minneapolis MNA2LA Certification #: 2926.01Alabama Certification #: 40770Alaska Contaminated Sites Certification #: 17-009Alaska DW Certification #: MN00064Arizona Certification #: AZ0014Arkansas DW Certification #: MN00064Arkansas WW Certification #: 88-0680California Certification #: 2929CNMI Saipan Certification #: MP0003Colorado Certification #: MN00064Connecticut Certification #: PH-0256EPA Region 8+Wyoming DW Certification #: via MN 027-053-137Florida Certification #: E87605Georgia Certification #: 959Guam EPA Certification #: MN00064Hawaii Certification #: MN00064Idaho Certification #: MN00064Illinois Certification #: 200011Indiana Certification #: C-MN-01Iowa Certification #: 368Kansas Certification #: E-10167Kentucky DW Certification #: 90062Kentucky WW Certification #: 90062Louisiana DEQ Certification #: 03086Louisiana DW Certification #: MN00064Maine Certification #: MN00064Maryland Certification #: 322Massachusetts DWP Certification #: via MN 027-053-137Michigan Certification #: 9909Minnesota Certification #: 027-053-137Minnesota Dept of Ag Certifcation #: via MN 027-053-137

Minnesota Petrofund Certification #: 1240Mississippi Certification #: MN00064Missouri Certification #: 10100Montana Certification #: CERT0092Nebraska Certification #: NE-OS-18-06Nevada Certification #: MN00064New Hampshire Certification #: 2081New Jersey Certification #: MN002New York Certification #: 11647North Carolina DW Certification #: 27700North Carolina WW Certification #: 530North Dakota Certification #: R-036Ohio DW Certification #: 41244Ohio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Primary Certification #: MN300001Oregon Secondary Certification #: MN200001Pennsylvania Certification #: 68-00563Puerto Rico Certification #: MN00064South Carolina Certification #:74003001Tennessee Certification #: TN02818Texas Certification #: T104704192Utah Certification #: MN00064Vermont Certification #: VT-027053137Virginia Certification #: 460163Washington Certification #: C486West Virginia DEP Certification #: 382West Virginia DW Certification #: 9952 CWisconsin Certification #: 999407970Wyoming UST Certification #: via A2LA 2926.01




Minneapolis, MN 55414(612)607-1700

Page 2 of 20

#=SS#

SAMPLE SUMMARY


1052789219-0338-102 7613 Lake St, Rive

Lab ID Sample ID Matrix Date Collected Date Received

10527892001 SG-1 Air 08/05/20 07:41 08/10/20 14:40

10527892002 SG-2 Air 08/05/20 09:24 08/10/20 14:40

10527892003 SG-3 Air 08/05/20 10:55 08/10/20 14:40

10527892004 SG-4 Air 08/05/20 12:47 08/10/20 14:40

10527892005 SG-5 Air 08/05/20 14:20 08/10/20 14:40




Minneapolis, MN 55414(612)607-1700

Page 3 of 20

#=SA#

SAMPLE ANALYTE COUNT


1052789219-0338-102 7613 Lake St, Rive

Lab ID Sample ID MethodAnalytesReportedAnalysts

10527892001 SG-1 TO-15 42MG2

10527892002 SG-2 TO-15 42MG2

10527892003 SG-3 TO-15 42MG2

10527892004 SG-4 TO-15 42MG2

10527892005 SG-5 TO-15 42MG2

PASI-M = Pace Analytical Services - Minneapolis




Minneapolis, MN 55414(612)607-1700

Page 4 of 20

#=AR#

ANALYTICAL RESULTS


1052789219-0338-102 7613 Lake St, Rive

Sample: SG-1 Lab ID: 10527892001 Collected: 08/05/20 07:41 Received: 08/10/20 14:40 Matrix: Air

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Analytical Method: TO-15Pace Analytical Services - Minneapolis

TO15 MSV AIR

Acetone 133 ug/m3 08/12/20 20:46 67-64-110.5 1.74Benzene 5.8 ug/m3 08/12/20 20:46 71-43-20.57 1.74Bromodichloromethane ND ug/m3 08/12/20 20:46 75-27-42.4 1.74Bromoform ND ug/m3 08/12/20 20:46 75-25-29.1 1.74Bromomethane ND ug/m3 08/12/20 20:46 74-83-91.4 1.742-Butanone (MEK) 59.3 ug/m3 08/12/20 20:46 78-93-35.2 1.74tert-Butyl Alcohol 15.7 ug/m3 08/12/20 20:46 75-65-05.4 1.74Carbon disulfide 8.5 ug/m3 08/12/20 20:46 75-15-01.1 1.74Carbon tetrachloride ND ug/m3 08/12/20 20:46 56-23-52.2 1.74Chlorobenzene ND ug/m3 08/12/20 20:46 108-90-71.6 1.74Chloroform ND ug/m3 08/12/20 20:46 67-66-30.86 1.74Dibromochloromethane ND ug/m3 08/12/20 20:46 124-48-13.0 1.741,2-Dibromoethane (EDB) ND ug/m3 08/12/20 20:46 106-93-41.4 1.741,2-Dichlorobenzene ND ug/m3 08/12/20 20:46 95-50-12.1 1.741,4-Dichlorobenzene ND ug/m3 08/12/20 20:46 106-46-75.3 1.74Dichlorodifluoromethane 2.3 ug/m3 08/12/20 20:46 75-71-81.8 1.741,1-Dichloroethane ND ug/m3 08/12/20 20:46 75-34-31.4 1.741,2-Dichloroethane ND ug/m3 08/12/20 20:46 107-06-20.72 1.741,1-Dichloroethene ND ug/m3 08/12/20 20:46 75-35-41.4 1.74cis-1,2-Dichloroethene 25.2 ug/m3 08/12/20 20:46 156-59-21.4 1.74trans-1,2-Dichloroethene 3.6 ug/m3 08/12/20 20:46 156-60-51.4 1.741,2-Dichloropropane ND ug/m3 08/12/20 20:46 78-87-51.6 1.74cis-1,3-Dichloropropene ND ug/m3 08/12/20 20:46 10061-01-51.6 1.74trans-1,3-Dichloropropene ND ug/m3 08/12/20 20:46 10061-02-61.6 1.741,4-Dioxane (p-Dioxane) ND ug/m3 08/12/20 20:46 123-91-16.4 1.74Ethylbenzene 76.4 ug/m3 08/12/20 20:46 100-41-41.5 1.74Isopropylbenzene (Cumene) ND ug/m3 08/12/20 20:46 98-82-84.4 1.74Methylene Chloride 14.3 ug/m3 08/12/20 20:46 75-09-26.1 1.74Methyl-tert-butyl ether ND ug/m3 08/12/20 20:46 1634-04-46.4 1.74Naphthalene 6.0 ug/m3 08/12/20 20:46 91-20-34.6 1.74Styrene 6.0 ug/m3 08/12/20 20:46 100-42-51.5 1.74Tetrachloroethene 237 ug/m3 08/12/20 20:46 127-18-41.2 1.74Toluene 87.2 ug/m3 08/12/20 20:46 108-88-31.3 1.741,2,4-Trichlorobenzene ND ug/m3 08/12/20 20:46 120-82-113.1 1.741,1,1-Trichloroethane ND ug/m3 08/12/20 20:46 71-55-61.9 1.741,1,2-Trichloroethane ND ug/m3 08/12/20 20:46 79-00-50.97 1.74Trichloroethene 38.1 ug/m3 08/12/20 20:46 79-01-60.95 1.74Trichlorofluoromethane ND ug/m3 08/12/20 20:46 75-69-42.0 1.74Vinyl acetate ND ug/m3 08/12/20 20:46 108-05-41.2 1.74Vinyl chloride ND ug/m3 08/12/20 20:46 75-01-40.45 1.74m&p-Xylene 54.5 ug/m3 08/12/20 20:46 179601-23-13.1 1.74o-Xylene 20.2 ug/m3 08/12/20 20:46 95-47-61.5 1.74


without the written consent of Pace Analytical Services, LLC.Date: 08/14/2020 10:58 AM


Minneapolis, MN 55414(612)607-1700

Page 5 of 20

#=AR#

ANALYTICAL RESULTS


1052789219-0338-102 7613 Lake St, Rive




TO15 MSV AIR

Acetone 179 ug/m3 08/12/20 22:12 67-64-177.3 12.8Benzene 9.9 ug/m3 08/12/20 22:12 71-43-24.2 12.8Bromodichloromethane ND ug/m3 08/12/20 22:12 75-27-417.4 12.8Bromoform ND ug/m3 08/12/20 22:12 75-25-267.2 12.8Bromomethane ND ug/m3 08/12/20 22:12 74-83-910.1 12.82-Butanone (MEK) ND ug/m3 08/12/20 22:12 78-93-338.4 12.8tert-Butyl Alcohol 57.5 ug/m3 08/12/20 22:12 75-65-039.4 12.8Carbon disulfide ND ug/m3 08/12/20 22:12 75-15-08.1 12.8Carbon tetrachloride ND ug/m3 08/12/20 22:12 56-23-516.4 12.8Chlorobenzene ND ug/m3 08/12/20 22:12 108-90-712.0 12.8Chloroform ND ug/m3 08/12/20 22:12 67-66-36.3 12.8Dibromochloromethane ND ug/m3 08/12/20 22:12 124-48-122.1 12.81,2-Dibromoethane (EDB) ND ug/m3 08/12/20 22:12 106-93-410 12.81,2-Dichlorobenzene ND ug/m3 08/12/20 22:12 95-50-115.6 12.81,4-Dichlorobenzene ND ug/m3 08/12/20 22:12 106-46-739.2 12.8Dichlorodifluoromethane ND ug/m3 08/12/20 22:12 75-71-812.9 12.81,1-Dichloroethane ND ug/m3 08/12/20 22:12 75-34-310.5 12.81,2-Dichloroethane ND ug/m3 08/12/20 22:12 107-06-25.3 12.81,1-Dichloroethene ND ug/m3 08/12/20 22:12 75-35-410.3 12.8cis-1,2-Dichloroethene ND ug/m3 08/12/20 22:12 156-59-210.3 12.8trans-1,2-Dichloroethene ND ug/m3 08/12/20 22:12 156-60-510.3 12.81,2-Dichloropropane ND ug/m3 08/12/20 22:12 78-87-512.0 12.8cis-1,3-Dichloropropene ND ug/m3 08/12/20 22:12 10061-01-511.8 12.8trans-1,3-Dichloropropene ND ug/m3 08/12/20 22:12 10061-02-611.8 12.81,4-Dioxane (p-Dioxane) ND ug/m3 08/12/20 22:12 123-91-146.8 12.8Ethylbenzene 22.3 ug/m3 08/12/20 22:12 100-41-411.3 12.8Isopropylbenzene (Cumene) ND ug/m3 08/12/20 22:12 98-82-832.0 12.8Methylene Chloride 118 ug/m3 08/12/20 22:12 75-09-245.2 12.8Methyl-tert-butyl ether ND ug/m3 08/12/20 22:12 1634-04-446.8 12.8Naphthalene ND ug/m3 08/12/20 22:12 91-20-334.0 12.8Styrene ND ug/m3 08/12/20 22:12 100-42-511.1 12.8Tetrachloroethene 13.2 ug/m3 08/12/20 22:12 127-18-4 C88.8 12.8Toluene 83.0 ug/m3 08/12/20 22:12 108-88-39.8 12.81,2,4-Trichlorobenzene ND ug/m3 08/12/20 22:12 120-82-196.5 12.81,1,1-Trichloroethane ND ug/m3 08/12/20 22:12 71-55-614.2 12.81,1,2-Trichloroethane ND ug/m3 08/12/20 22:12 79-00-57.1 12.8Trichloroethene ND ug/m3 08/12/20 22:12 79-01-67.0 12.8Trichlorofluoromethane ND ug/m3 08/12/20 22:12 75-69-414.6 12.8Vinyl acetate ND ug/m3 08/12/20 22:12 108-05-49.2 12.8Vinyl chloride 50.0 ug/m3 08/12/20 22:12 75-01-43.3 12.8m&p-Xylene ND ug/m3 08/12/20 22:12 179601-23-122.7 12.8o-Xylene ND ug/m3 08/12/20 22:12 95-47-611.3 12.8




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#=AR#

ANALYTICAL RESULTS


1052789219-0338-102 7613 Lake St, Rive




TO15 MSV AIR

Acetone 145 ug/m3 08/12/20 21:15 67-64-111.1 1.83Benzene 6.4 ug/m3 08/12/20 21:15 71-43-20.59 1.83Bromodichloromethane ND ug/m3 08/12/20 21:15 75-27-42.5 1.83Bromoform ND ug/m3 08/12/20 21:15 75-25-29.6 1.83Bromomethane ND ug/m3 08/12/20 21:15 74-83-91.4 1.832-Butanone (MEK) 50.5 ug/m3 08/12/20 21:15 78-93-35.5 1.83tert-Butyl Alcohol 8.6 ug/m3 08/12/20 21:15 75-65-05.6 1.83Carbon disulfide 2.3 ug/m3 08/12/20 21:15 75-15-01.2 1.83Carbon tetrachloride ND ug/m3 08/12/20 21:15 56-23-52.3 1.83Chlorobenzene ND ug/m3 08/12/20 21:15 108-90-71.7 1.83Chloroform ND ug/m3 08/12/20 21:15 67-66-30.91 1.83Dibromochloromethane ND ug/m3 08/12/20 21:15 124-48-13.2 1.831,2-Dibromoethane (EDB) ND ug/m3 08/12/20 21:15 106-93-41.4 1.831,2-Dichlorobenzene ND ug/m3 08/12/20 21:15 95-50-12.2 1.831,4-Dichlorobenzene ND ug/m3 08/12/20 21:15 106-46-75.6 1.83Dichlorodifluoromethane 2.5 ug/m3 08/12/20 21:15 75-71-81.8 1.831,1-Dichloroethane ND ug/m3 08/12/20 21:15 75-34-31.5 1.831,2-Dichloroethane ND ug/m3 08/12/20 21:15 107-06-20.75 1.831,1-Dichloroethene ND ug/m3 08/12/20 21:15 75-35-41.5 1.83cis-1,2-Dichloroethene 479 ug/m3 08/13/20 09:42 156-59-214.7 18.3trans-1,2-Dichloroethene 52.0 ug/m3 08/12/20 21:15 156-60-51.5 1.831,2-Dichloropropane ND ug/m3 08/12/20 21:15 78-87-51.7 1.83cis-1,3-Dichloropropene ND ug/m3 08/12/20 21:15 10061-01-51.7 1.83trans-1,3-Dichloropropene ND ug/m3 08/12/20 21:15 10061-02-61.7 1.831,4-Dioxane (p-Dioxane) ND ug/m3 08/12/20 21:15 123-91-16.7 1.83Ethylbenzene 86.9 ug/m3 08/12/20 21:15 100-41-41.6 1.83Isopropylbenzene (Cumene) ND ug/m3 08/12/20 21:15 98-82-84.6 1.83Methylene Chloride 22.5 ug/m3 08/12/20 21:15 75-09-26.5 1.83Methyl-tert-butyl ether ND ug/m3 08/12/20 21:15 1634-04-46.7 1.83Naphthalene ND ug/m3 08/12/20 21:15 91-20-34.9 1.83Styrene 7.7 ug/m3 08/12/20 21:15 100-42-51.6 1.83Tetrachloroethene 194 ug/m3 08/12/20 21:15 127-18-41.3 1.83Toluene 105 ug/m3 08/12/20 21:15 108-88-31.4 1.831,2,4-Trichlorobenzene ND ug/m3 08/12/20 21:15 120-82-113.8 1.831,1,1-Trichloroethane ND ug/m3 08/12/20 21:15 71-55-62.0 1.831,1,2-Trichloroethane ND ug/m3 08/12/20 21:15 79-00-51.0 1.83Trichloroethene 24.9 ug/m3 08/12/20 21:15 79-01-61.0 1.83Trichlorofluoromethane ND ug/m3 08/12/20 21:15 75-69-42.1 1.83Vinyl acetate ND ug/m3 08/12/20 21:15 108-05-41.3 1.83Vinyl chloride 20.5 ug/m3 08/12/20 21:15 75-01-40.48 1.83m&p-Xylene 65.7 ug/m3 08/12/20 21:15 179601-23-13.2 1.83o-Xylene 25.2 ug/m3 08/12/20 21:15 95-47-61.6 1.83




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#=AR#

ANALYTICAL RESULTS


1052789219-0338-102 7613 Lake St, Rive




TO15 MSV AIR

Acetone 126 ug/m3 08/12/20 21:44 67-64-110.1 1.68Benzene 5.8 ug/m3 08/12/20 21:44 71-43-20.55 1.68Bromodichloromethane ND ug/m3 08/12/20 21:44 75-27-42.3 1.68Bromoform ND ug/m3 08/12/20 21:44 75-25-28.8 1.68Bromomethane ND ug/m3 08/12/20 21:44 74-83-91.3 1.682-Butanone (MEK) 51.6 ug/m3 08/12/20 21:44 78-93-35.0 1.68tert-Butyl Alcohol 15.2 ug/m3 08/12/20 21:44 75-65-05.2 1.68Carbon disulfide 1.7 ug/m3 08/12/20 21:44 75-15-01.1 1.68Carbon tetrachloride ND ug/m3 08/12/20 21:44 56-23-52.2 1.68Chlorobenzene ND ug/m3 08/12/20 21:44 108-90-71.6 1.68Chloroform 1.5 ug/m3 08/12/20 21:44 67-66-30.83 1.68Dibromochloromethane ND ug/m3 08/12/20 21:44 124-48-12.9 1.681,2-Dibromoethane (EDB) ND ug/m3 08/12/20 21:44 106-93-41.3 1.681,2-Dichlorobenzene ND ug/m3 08/12/20 21:44 95-50-12.0 1.681,4-Dichlorobenzene ND ug/m3 08/12/20 21:44 106-46-75.1 1.68Dichlorodifluoromethane 2.5 ug/m3 08/12/20 21:44 75-71-81.7 1.681,1-Dichloroethane ND ug/m3 08/12/20 21:44 75-34-31.4 1.681,2-Dichloroethane ND ug/m3 08/12/20 21:44 107-06-20.69 1.681,1-Dichloroethene ND ug/m3 08/12/20 21:44 75-35-41.4 1.68cis-1,2-Dichloroethene 45.6 ug/m3 08/12/20 21:44 156-59-21.4 1.68trans-1,2-Dichloroethene 4.6 ug/m3 08/12/20 21:44 156-60-51.4 1.681,2-Dichloropropane ND ug/m3 08/12/20 21:44 78-87-51.6 1.68cis-1,3-Dichloropropene ND ug/m3 08/12/20 21:44 10061-01-51.6 1.68trans-1,3-Dichloropropene ND ug/m3 08/12/20 21:44 10061-02-61.6 1.681,4-Dioxane (p-Dioxane) ND ug/m3 08/12/20 21:44 123-91-16.1 1.68Ethylbenzene 106 ug/m3 08/12/20 21:44 100-41-41.5 1.68Isopropylbenzene (Cumene) ND ug/m3 08/12/20 21:44 98-82-84.2 1.68Methylene Chloride 9.8 ug/m3 08/12/20 21:44 75-09-25.9 1.68Methyl-tert-butyl ether ND ug/m3 08/12/20 21:44 1634-04-46.1 1.68Naphthalene ND ug/m3 08/12/20 21:44 91-20-34.5 1.68Styrene 7.5 ug/m3 08/12/20 21:44 100-42-51.5 1.68Tetrachloroethene 2240 ug/m3 08/13/20 10:08 127-18-434.7 50.4Toluene 163 ug/m3 08/12/20 21:44 108-88-31.3 1.681,2,4-Trichlorobenzene ND ug/m3 08/12/20 21:44 120-82-112.7 1.681,1,1-Trichloroethane ND ug/m3 08/12/20 21:44 71-55-61.9 1.681,1,2-Trichloroethane ND ug/m3 08/12/20 21:44 79-00-50.93 1.68Trichloroethene 27.1 ug/m3 08/12/20 21:44 79-01-60.92 1.68Trichlorofluoromethane ND ug/m3 08/12/20 21:44 75-69-41.9 1.68Vinyl acetate ND ug/m3 08/12/20 21:44 108-05-41.2 1.68Vinyl chloride 2.3 ug/m3 08/12/20 21:44 75-01-40.44 1.68m&p-Xylene 73.8 ug/m3 08/12/20 21:44 179601-23-13.0 1.68o-Xylene 28.0 ug/m3 08/12/20 21:44 95-47-61.5 1.68




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#=AR#

ANALYTICAL RESULTS


1052789219-0338-102 7613 Lake St, Rive




TO15 MSV AIR

Acetone 102 ug/m3 08/12/20 20:17 67-64-19.8 1.63Benzene 8.2 ug/m3 08/12/20 20:17 71-43-20.53 1.63Bromodichloromethane ND ug/m3 08/12/20 20:17 75-27-42.2 1.63Bromoform ND ug/m3 08/12/20 20:17 75-25-28.6 1.63Bromomethane ND ug/m3 08/12/20 20:17 74-83-91.3 1.632-Butanone (MEK) 42.0 ug/m3 08/12/20 20:17 78-93-34.9 1.63tert-Butyl Alcohol 16.4 ug/m3 08/12/20 20:17 75-65-05.0 1.63Carbon disulfide 2.1 ug/m3 08/12/20 20:17 75-15-01.0 1.63Carbon tetrachloride ND ug/m3 08/12/20 20:17 56-23-52.1 1.63Chlorobenzene ND ug/m3 08/12/20 20:17 108-90-71.5 1.63Chloroform ND ug/m3 08/12/20 20:17 67-66-30.81 1.63Dibromochloromethane ND ug/m3 08/12/20 20:17 124-48-12.8 1.631,2-Dibromoethane (EDB) ND ug/m3 08/12/20 20:17 106-93-41.3 1.631,2-Dichlorobenzene ND ug/m3 08/12/20 20:17 95-50-12.0 1.631,4-Dichlorobenzene ND ug/m3 08/12/20 20:17 106-46-75.0 1.63Dichlorodifluoromethane 2.4 ug/m3 08/12/20 20:17 75-71-81.6 1.631,1-Dichloroethane ND ug/m3 08/12/20 20:17 75-34-31.3 1.631,2-Dichloroethane ND ug/m3 08/12/20 20:17 107-06-20.67 1.631,1-Dichloroethene ND ug/m3 08/12/20 20:17 75-35-41.3 1.63cis-1,2-Dichloroethene 19.2 ug/m3 08/12/20 20:17 156-59-21.3 1.63trans-1,2-Dichloroethene 1.8 ug/m3 08/12/20 20:17 156-60-51.3 1.631,2-Dichloropropane ND ug/m3 08/12/20 20:17 78-87-51.5 1.63cis-1,3-Dichloropropene ND ug/m3 08/12/20 20:17 10061-01-51.5 1.63trans-1,3-Dichloropropene ND ug/m3 08/12/20 20:17 10061-02-61.5 1.631,4-Dioxane (p-Dioxane) ND ug/m3 08/12/20 20:17 123-91-16.0 1.63Ethylbenzene 99.7 ug/m3 08/12/20 20:17 100-41-41.4 1.63Isopropylbenzene (Cumene) ND ug/m3 08/12/20 20:17 98-82-84.1 1.63Methylene Chloride 10.3 ug/m3 08/12/20 20:17 75-09-25.8 1.63Methyl-tert-butyl ether ND ug/m3 08/12/20 20:17 1634-04-46.0 1.63Naphthalene ND ug/m3 08/12/20 20:17 91-20-34.3 1.63Styrene 7.4 ug/m3 08/12/20 20:17 100-42-51.4 1.63Tetrachloroethene 93.2 ug/m3 08/12/20 20:17 127-18-41.1 1.63Toluene 126 ug/m3 08/12/20 20:17 108-88-31.2 1.631,2,4-Trichlorobenzene ND ug/m3 08/12/20 20:17 120-82-112.3 1.631,1,1-Trichloroethane ND ug/m3 08/12/20 20:17 71-55-61.8 1.631,1,2-Trichloroethane ND ug/m3 08/12/20 20:17 79-00-50.90 1.63Trichloroethene 7.9 ug/m3 08/12/20 20:17 79-01-60.89 1.63Trichlorofluoromethane ND ug/m3 08/12/20 20:17 75-69-41.9 1.63Vinyl acetate ND ug/m3 08/12/20 20:17 108-05-41.2 1.63Vinyl chloride 0.95 ug/m3 08/12/20 20:17 75-01-40.42 1.63m&p-Xylene 69.2 ug/m3 08/12/20 20:17 179601-23-12.9 1.63o-Xylene 25.5 ug/m3 08/12/20 20:17 95-47-61.4 1.63




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#=QC#

QUALITY CONTROL DATA


1052789219-0338-102 7613 Lake St, Rive

Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

692155TO-15

TO-15TO15 MSV AIR Low Level

Laboratory: Pace Analytical Services - MinneapolisAssociated Lab Samples: 10527892001, 10527892003, 10527892004, 10527892005

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 3700189Associated Lab Samples: 10527892001, 10527892003, 10527892004, 10527892005

Matrix: Air

Analyzed

1,1,1-Trichloroethane ug/m3 ND 0.56 08/12/20 08:581,1,2-Trichloroethane ug/m3 ND 0.28 08/12/20 08:581,1-Dichloroethane ug/m3 ND 0.41 08/12/20 08:581,1-Dichloroethene ug/m3 ND 0.40 08/12/20 08:581,2,4-Trichlorobenzene ug/m3 ND 3.8 08/12/20 08:581,2-Dibromoethane (EDB) ug/m3 ND 0.39 08/12/20 08:581,2-Dichlorobenzene ug/m3 ND 0.61 08/12/20 08:581,2-Dichloroethane ug/m3 ND 0.21 08/12/20 08:581,2-Dichloropropane ug/m3 ND 0.47 08/12/20 08:581,4-Dichlorobenzene ug/m3 ND 1.5 08/12/20 08:581,4-Dioxane (p-Dioxane) ug/m3 ND 1.8 08/12/20 08:582-Butanone (MEK) ug/m3 ND 1.5 08/12/20 08:58Acetone ug/m3 ND 3.0 08/12/20 08:58Benzene ug/m3 ND 0.16 08/12/20 08:58Bromodichloromethane ug/m3 ND 0.68 08/12/20 08:58Bromoform ug/m3 ND 2.6 08/12/20 08:58Bromomethane ug/m3 ND 0.39 08/12/20 08:58Carbon disulfide ug/m3 ND 0.32 08/12/20 08:58Carbon tetrachloride ug/m3 ND 0.64 08/12/20 08:58Chlorobenzene ug/m3 ND 0.47 08/12/20 08:58Chloroform ug/m3 ND 0.25 08/12/20 08:58cis-1,2-Dichloroethene ug/m3 ND 0.40 08/12/20 08:58cis-1,3-Dichloropropene ug/m3 ND 0.46 08/12/20 08:58Dibromochloromethane ug/m3 ND 0.86 08/12/20 08:58Dichlorodifluoromethane ug/m3 ND 0.50 08/12/20 08:58Ethylbenzene ug/m3 ND 0.44 08/12/20 08:58Isopropylbenzene (Cumene) ug/m3 ND 1.2 08/12/20 08:58m&p-Xylene ug/m3 ND 0.88 08/12/20 08:58Methyl-tert-butyl ether ug/m3 ND 1.8 08/12/20 08:58Methylene Chloride ug/m3 ND 1.8 08/12/20 08:58Naphthalene ug/m3 ND 1.3 08/12/20 08:58o-Xylene ug/m3 ND 0.44 08/12/20 08:58Styrene ug/m3 ND 0.43 08/12/20 08:58tert-Butyl Alcohol ug/m3 ND 1.5 08/12/20 08:58Tetrachloroethene ug/m3 ND 0.34 08/12/20 08:58Toluene ug/m3 ND 0.38 08/12/20 08:58trans-1,2-Dichloroethene ug/m3 ND 0.40 08/12/20 08:58trans-1,3-Dichloropropene ug/m3 ND 0.46 08/12/20 08:58Trichloroethene ug/m3 ND 0.27 08/12/20 08:58Trichlorofluoromethane ug/m3 ND 0.57 08/12/20 08:58




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METHOD BLANK: 3700189Associated Lab Samples: 10527892001, 10527892003, 10527892004, 10527892005

Matrix: Air

Analyzed

Vinyl acetate ug/m3 ND 0.36 08/12/20 08:58Vinyl chloride ug/m3 ND 0.13 08/12/20 08:58

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

3700190LABORATORY CONTROL SAMPLE:LCSSpike

1,1,1-Trichloroethane ug/m3 53.757 94 70-1301,1,2-Trichloroethane ug/m3 53.557.3 93 70-1331,1-Dichloroethane ug/m3 39.242.7 92 70-1301,1-Dichloroethene ug/m3 39.441.4 95 69-1371,2,4-Trichlorobenzene ug/m3 114156 73 70-1301,2-Dibromoethane (EDB) ug/m3 73.080.3 91 70-1381,2-Dichlorobenzene ug/m3 52.463.1 83 70-1361,2-Dichloroethane ug/m3 38.742.4 91 70-1301,2-Dichloropropane ug/m3 45.148.6 93 70-1321,4-Dichlorobenzene ug/m3 54.763.4 86 70-1451,4-Dioxane (p-Dioxane) ug/m3 79.995.9 83 70-1412-Butanone (MEK) ug/m3 30.431.4 97 61-130Acetone ug/m3 106126 84 59-137Benzene ug/m3 30.833.5 92 70-133Bromodichloromethane ug/m3 66.871.5 93 70-130Bromoform ug/m3 119110 108 60-140Bromomethane ug/m3 40.141.3 97 70-131Carbon disulfide ug/m3 32.233.3 96 70-130Carbon tetrachloride ug/m3 63.866.2 96 70-133Chlorobenzene ug/m3 40.248.3 83 70-131Chloroform ug/m3 47.751.1 93 70-130cis-1,2-Dichloroethene ug/m3 41.241.6 99 70-132cis-1,3-Dichloropropene ug/m3 47.647.7 100 70-138Dibromochloromethane ug/m3 87.190.7 96 70-139Dichlorodifluoromethane ug/m3 48.251.6 93 70-130Ethylbenzene ug/m3 43.245.6 95 70-142Isopropylbenzene (Cumene) ug/m3 51.552 99 70-135m&p-Xylene ug/m3 87.791.2 96 70-141Methyl-tert-butyl ether ug/m3 37.238.4 97 70-131Methylene Chloride ug/m3 153182 84 69-130Naphthalene ug/m3 40.557.7 70 63-130o-Xylene ug/m3 41.945.5 92 70-135Styrene ug/m3 45.244.9 101 70-143tert-Butyl Alcohol ug/m3 27.132.2 84 62-130Tetrachloroethene ug/m3 63.771 90 70-136Toluene ug/m3 37.439.5 95 70-136trans-1,2-Dichloroethene ug/m3 40.942.2 97 70-132trans-1,3-Dichloropropene ug/m3 48.847.7 102 70-139




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Parameter UnitsLCS



Trichloroethene ug/m3 52.556.3 93 70-132Trichlorofluoromethane ug/m3 56.359.7 94 65-136Vinyl acetate ug/m3 33.134.5 96 66-140Vinyl chloride ug/m3 26.426.7 99 68-141

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

105278930023701378SAMPLE DUPLICATE:

1,1,1-Trichloroethane ug/m3 ND 25<0.251,1,2-Trichloroethane ug/m3 ND 25<0.411,1-Dichloroethane ug/m3 ND 25<0.231,1-Dichloroethene ug/m3 ND 25<0.261,2,4-Trichlorobenzene ug/m3 ND 25<6.11,2-Dibromoethane (EDB) ug/m3 ND 25<0.591,2-Dichlorobenzene ug/m3 ND 25<0.691,2-Dichloroethane ug/m3 ND 25<0.331,2-Dichloropropane ug/m3 ND 25<0.311,4-Dichlorobenzene ug/m3 ND 25<1.51,4-Dioxane (p-Dioxane) ug/m3 ND 25<2.62-Butanone (MEK) ug/m3 4.7J 254.5JAcetone ug/m3 6.4J 256.5JBenzene ug/m3 ND 25<0.24Bromodichloromethane ug/m3 ND 25<0.48Bromoform ug/m3 ND 25<2.6Bromomethane ug/m3 ND 25<0.33Carbon disulfide ug/m3 ND 25<0.36Carbon tetrachloride ug/m3 .37J 250.31JChlorobenzene ug/m3 ND 25<0.28Chloroform ug/m3 ND 25<0.35cis-1,2-Dichloroethene ug/m3 ND 25<0.29cis-1,3-Dichloropropene ug/m3 ND 25<0.40Dibromochloromethane ug/m3 ND 25<0.54Dichlorodifluoromethane ug/m3 2.3 3 252.4Ethylbenzene ug/m3 1.5J 251.6JIsopropylbenzene (Cumene) ug/m3 ND 25<0.44m&p-Xylene ug/m3 4.5 0 254.5Methyl-tert-butyl ether ug/m3 ND 25<0.25Methylene Chloride ug/m3 3.3J 253.4JNaphthalene ug/m3 ND 25<2.3o-Xylene ug/m3 2.6 4 252.8Styrene ug/m3 ND 25<0.68tert-Butyl Alcohol ug/m3 ND 250.65JTetrachloroethene ug/m3 ND 25<0.52Toluene ug/m3 1.7 4 251.7trans-1,2-Dichloroethene ug/m3 ND 25<0.31




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Parameter UnitsDup



trans-1,3-Dichloropropene ug/m3 ND 25<0.52Trichloroethene ug/m3 ND 25<0.32Trichlorofluoromethane ug/m3 1.1J 251.1JVinyl acetate ug/m3 ND 25<0.32Vinyl chloride ug/m3 ND 25<0.18




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1052789219-0338-102 7613 Lake St, Rive




692486TO-15


Laboratory: Pace Analytical Services - MinneapolisAssociated Lab Samples: 10527892002



METHOD BLANK: 3701686Associated Lab Samples: 10527892002

Matrix: Air

Analyzed





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Matrix: Air

Analyzed


Parameter UnitsLCS



1,1,1-Trichloroethane ug/m3 53.757 94 70-1301,1,2-Trichloroethane ug/m3 53.557.3 93 70-1331,1-Dichloroethane ug/m3 39.242.7 92 70-1301,1-Dichloroethene ug/m3 39.441.4 95 69-1371,2,4-Trichlorobenzene ug/m3 114156 73 70-1301,2-Dibromoethane (EDB) ug/m3 73.080.3 91 70-1381,2-Dichlorobenzene ug/m3 52.463.1 83 70-1361,2-Dichloroethane ug/m3 38.742.4 91 70-1301,2-Dichloropropane ug/m3 45.148.6 93 70-1321,4-Dichlorobenzene ug/m3 54.763.4 86 70-1451,4-Dioxane (p-Dioxane) ug/m3 79.995.9 83 70-1412-Butanone (MEK) ug/m3 30.431.4 97 61-130Acetone ug/m3 106126 84 59-137Benzene ug/m3 30.833.5 92 70-133Bromodichloromethane ug/m3 66.871.5 93 70-130Bromoform ug/m3 119110 108 60-140Bromomethane ug/m3 40.141.3 97 70-131Carbon disulfide ug/m3 32.233.3 96 70-130Carbon tetrachloride ug/m3 63.866.2 96 70-133Chlorobenzene ug/m3 40.248.3 83 70-131Chloroform ug/m3 47.751.1 93 70-130cis-1,2-Dichloroethene ug/m3 41.241.6 99 70-132cis-1,3-Dichloropropene ug/m3 47.647.7 100 70-138Dibromochloromethane ug/m3 87.190.7 96 70-139Dichlorodifluoromethane ug/m3 48.251.6 93 70-130Ethylbenzene ug/m3 43.245.6 95 70-142Isopropylbenzene (Cumene) ug/m3 51.552 99 70-135m&p-Xylene ug/m3 87.791.2 96 70-141Methyl-tert-butyl ether ug/m3 37.238.4 97 70-131Methylene Chloride ug/m3 153182 84 69-130Naphthalene ug/m3 40.557.7 70 63-130o-Xylene ug/m3 41.945.5 92 70-135Styrene ug/m3 45.244.9 101 70-143tert-Butyl Alcohol ug/m3 27.132.2 84 62-130Tetrachloroethene ug/m3 63.771 90 70-136Toluene ug/m3 37.439.5 95 70-136trans-1,2-Dichloroethene ug/m3 40.942.2 97 70-132trans-1,3-Dichloropropene ug/m3 48.847.7 102 70-139




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Parameter UnitsLCS







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#=QL#

QUALIFIERS


1052789219-0338-102 7613 Lake St, Rive

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.ND - Not Detected at or above adjusted reporting limit.TNTC - Too Numerous To CountJ - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PQL - Practical Quantitation Limit.RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision andbias for a specific analyte in a specific matrix.S - Surrogate1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte isa combined concentration.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.

ANALYTE QUALIFIERS

Result may be biased high due to carryover from previously analyzed sample.C8




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#=CR#

QUALITY CONTROL DATA CROSS REFERENCE TABLE


1052789219-0338-102 7613 Lake St, Rive

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10527892001 692155SG-1 TO-15

10527892002 692486SG-2 TO-15

10527892003 692155SG-3 TO-1510527892004 692155SG-4 TO-1510527892005 692155SG-5 TO-15




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08/11/2020 Page 20 of 20

#=CL#

August 24, 2020

LIMS USE: FR - MEGANLIMS OBJECT ID: 10528884

10528884Project:Pace Project No.:

RE:

Megan Wells-PaskePioneer Environmental Services2753 West 31st StreetChicago, IL 60608

19-0338-102 7613 Lake St., Riv


Enclosed are the analytical results for sample(s) received by the laboratory on August 18, 2020. The results relate only tothe samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and thelaboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.

The test results provided in this final report were generated by each of the following laboratories within the Pace Network:• Pace Analytical Services - Minneapolis

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Ashley [email protected]

Project Manager(612)607-1700

Enclosures




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#=CP#

CERTIFICATIONS


1052888419-0338-102 7613 Lake St., Riv

Pace Analytical Services - Minneapolis MNA2LA Certification #: 2926.01Alabama Certification #: 40770Alaska Contaminated Sites Certification #: 17-009Alaska DW Certification #: MN00064Arizona Certification #: AZ0014Arkansas DW Certification #: MN00064Arkansas WW Certification #: 88-0680California Certification #: 2929CNMI Saipan Certification #: MP0003Colorado Certification #: MN00064Connecticut Certification #: PH-0256EPA Region 8+Wyoming DW Certification #: via MN 027-053-137Florida Certification #: E87605Georgia Certification #: 959Guam EPA Certification #: MN00064Hawaii Certification #: MN00064Idaho Certification #: MN00064Illinois Certification #: 200011Indiana Certification #: C-MN-01Iowa Certification #: 368Kansas Certification #: E-10167Kentucky DW Certification #: 90062Kentucky WW Certification #: 90062Louisiana DEQ Certification #: 03086Louisiana DW Certification #: MN00064Maine Certification #: MN00064Maryland Certification #: 322Massachusetts DWP Certification #: via MN 027-053-137Michigan Certification #: 9909Minnesota Certification #: 027-053-137Minnesota Dept of Ag Certifcation #: via MN 027-053-137

Minnesota Petrofund Certification #: 1240Mississippi Certification #: MN00064Missouri Certification #: 10100Montana Certification #: CERT0092Nebraska Certification #: NE-OS-18-06Nevada Certification #: MN00064New Hampshire Certification #: 2081New Jersey Certification #: MN002New York Certification #: 11647North Carolina DW Certification #: 27700North Carolina WW Certification #: 530North Dakota Certification #: R-036Ohio DW Certification #: 41244Ohio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Primary Certification #: MN300001Oregon Secondary Certification #: MN200001Pennsylvania Certification #: 68-00563Puerto Rico Certification #: MN00064South Carolina Certification #:74003001Tennessee Certification #: TN02818Texas Certification #: T104704192Utah Certification #: MN00064Vermont Certification #: VT-027053137Virginia Certification #: 460163Washington Certification #: C486West Virginia DEP Certification #: 382West Virginia DW Certification #: 9952 CWisconsin Certification #: 999407970Wyoming UST Certification #: via A2LA 2926.01




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#=SS#

SAMPLE SUMMARY


1052888419-0338-102 7613 Lake St., Riv

Lab ID Sample ID Matrix Date Collected Date Received

10528884001 SG-6 Air 08/12/20 17:01 08/18/20 10:15




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#=SA#

SAMPLE ANALYTE COUNT


1052888419-0338-102 7613 Lake St., Riv

Lab ID Sample ID MethodAnalytesReportedAnalysts

10528884001 SG-6 TO-15 42CH1

PASI-M = Pace Analytical Services - Minneapolis




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ANALYTICAL RESULTS


1052888419-0338-102 7613 Lake St., Riv




TO15 MSV AIR

Acetone ND ug/m3 08/22/20 03:02 67-64-12520 417.6Benzene ND ug/m3 08/22/20 03:02 71-43-2136 417.6Bromodichloromethane ND ug/m3 08/22/20 03:02 75-27-4568 417.6Bromoform ND ug/m3 08/22/20 03:02 75-25-22190 417.6Bromomethane ND ug/m3 08/22/20 03:02 74-83-9329 417.62-Butanone (MEK) ND ug/m3 08/22/20 03:02 78-93-31250 417.6tert-Butyl Alcohol ND ug/m3 08/22/20 03:02 75-65-01290 417.6Carbon disulfide ND ug/m3 08/22/20 03:02 75-15-0264 417.6Carbon tetrachloride ND ug/m3 08/22/20 03:02 56-23-5535 417.6Chlorobenzene ND ug/m3 08/22/20 03:02 108-90-7391 417.6Chloroform ND ug/m3 08/22/20 03:02 67-66-3207 417.6Dibromochloromethane ND ug/m3 08/22/20 03:02 124-48-1722 417.61,2-Dibromoethane (EDB) ND ug/m3 08/22/20 03:02 106-93-4326 417.61,2-Dichlorobenzene ND ug/m3 08/22/20 03:02 95-50-1509 417.61,4-Dichlorobenzene ND ug/m3 08/22/20 03:02 106-46-71280 417.6Dichlorodifluoromethane ND ug/m3 08/22/20 03:02 75-71-8422 417.61,1-Dichloroethane ND ug/m3 08/22/20 03:02 75-34-3344 417.61,2-Dichloroethane ND ug/m3 08/22/20 03:02 107-06-2172 417.61,1-Dichloroethene ND ug/m3 08/22/20 03:02 75-35-4337 417.6cis-1,2-Dichloroethene ND ug/m3 08/22/20 03:02 156-59-2337 417.6trans-1,2-Dichloroethene ND ug/m3 08/22/20 03:02 156-60-5337 417.61,2-Dichloropropane ND ug/m3 08/22/20 03:02 78-87-5392 417.6cis-1,3-Dichloropropene ND ug/m3 08/22/20 03:02 10061-01-5385 417.6trans-1,3-Dichloropropene ND ug/m3 08/22/20 03:02 10061-02-6385 417.61,4-Dioxane (p-Dioxane) ND ug/m3 08/22/20 03:02 123-91-11530 417.6Ethylbenzene ND ug/m3 08/22/20 03:02 100-41-4369 417.6Isopropylbenzene (Cumene) ND ug/m3 08/22/20 03:02 98-82-81040 417.6Methylene Chloride ND ug/m3 08/22/20 03:02 75-09-21470 417.6Methyl-tert-butyl ether ND ug/m3 08/22/20 03:02 1634-04-41530 417.6Naphthalene ND ug/m3 08/22/20 03:02 91-20-31110 417.6Styrene ND ug/m3 08/22/20 03:02 100-42-5362 417.6Tetrachloroethene 68100 ug/m3 08/22/20 03:02 127-18-4288 417.6Toluene ND ug/m3 08/22/20 03:02 108-88-3320 417.61,2,4-Trichlorobenzene ND ug/m3 08/22/20 03:02 120-82-13150 417.61,1,1-Trichloroethane ND ug/m3 08/22/20 03:02 71-55-6464 417.61,1,2-Trichloroethane ND ug/m3 08/22/20 03:02 79-00-5232 417.6Trichloroethene 3710 ug/m3 08/22/20 03:02 79-01-6228 417.6Trichlorofluoromethane ND ug/m3 08/22/20 03:02 75-69-4476 417.6Vinyl acetate ND ug/m3 08/22/20 03:02 108-05-4299 417.6Vinyl chloride ND ug/m3 08/22/20 03:02 75-01-4109 417.6m&p-Xylene ND ug/m3 08/22/20 03:02 179601-23-1739 417.6o-Xylene ND ug/m3 08/22/20 03:02 95-47-6369 417.6


without the written consent of Pace Analytical Services, LLC.Date: 08/24/2020 01:42 PM


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694221TO-15


Laboratory: Pace Analytical Services - MinneapolisAssociated Lab Samples: 10528884001




Matrix: Air

Analyzed





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Matrix: Air

Analyzed


Parameter UnitsLCS



1,1,1-Trichloroethane ug/m3 62.257 109 70-1301,1,2-Trichloroethane ug/m3 60.357.3 105 70-1331,1-Dichloroethane ug/m3 47.542.7 111 70-1301,1-Dichloroethene ug/m3 43.241.4 104 69-1371,2,4-Trichlorobenzene ug/m3 173156 111 70-1301,2-Dibromoethane (EDB) ug/m3 80.880.3 101 70-1381,2-Dichlorobenzene ug/m3 59.263.1 94 70-1361,2-Dichloroethane ug/m3 45.642.4 108 70-1301,2-Dichloropropane ug/m3 54.048.6 111 70-1321,4-Dichlorobenzene ug/m3 64.563.4 102 70-1451,4-Dioxane (p-Dioxane) ug/m3 10295.9 106 70-1412-Butanone (MEK) ug/m3 37.231.4 118 61-130Acetone ug/m3 127126 101 59-137Benzene ug/m3 36.133.5 108 70-133Bromodichloromethane ug/m3 78.171.5 109 70-130Bromoform ug/m3 105110 96 60-140Bromomethane ug/m3 42.741.3 103 70-131Carbon disulfide ug/m3 37.033.3 111 70-130Carbon tetrachloride ug/m3 74.366.2 112 70-133Chlorobenzene ug/m3 47.148.3 97 70-131Chloroform ug/m3 55.451.1 108 70-130cis-1,2-Dichloroethene ug/m3 45.241.6 109 70-132cis-1,3-Dichloropropene ug/m3 54.447.7 114 70-138Dibromochloromethane ug/m3 91.090.7 100 70-139Dichlorodifluoromethane ug/m3 55.751.6 108 70-130Ethylbenzene ug/m3 48.245.6 106 70-142Isopropylbenzene (Cumene) ug/m3 55.452 107 70-135m&p-Xylene ug/m3 95.991.2 105 70-141Methyl-tert-butyl ether ug/m3 44.938.4 117 70-131Methylene Chloride ug/m3 208182 114 69-130Naphthalene ug/m3 54.457.7 94 63-130o-Xylene ug/m3 46.145.5 101 70-135Styrene ug/m3 49.644.9 111 70-143tert-Butyl Alcohol ug/m3 33.532.2 104 62-130Tetrachloroethene ug/m3 70.771 100 70-136Toluene ug/m3 43.939.5 111 70-136trans-1,2-Dichloroethene ug/m3 45.142.2 107 70-132trans-1,3-Dichloropropene ug/m3 54.447.7 114 70-139




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Parameter UnitsLCS




Parameter UnitsDup



1,1,1-Trichloroethane ug/m3 ND 25<0.271,1,2-Trichloroethane ug/m3 ND 25<0.451,1-Dichloroethane ug/m3 ND 25<0.251,1-Dichloroethene ug/m3 ND 25<0.291,2,4-Trichlorobenzene ug/m3 ND 25<6.71,2-Dibromoethane (EDB) ug/m3 ND 25<0.651,2-Dichlorobenzene ug/m3 ND 25<0.761,2-Dichloroethane ug/m3 ND 25<0.361,2-Dichloropropane ug/m3 ND 25<0.341,4-Dichlorobenzene ug/m3 ND 25<1.71,4-Dioxane (p-Dioxane) ug/m3 ND 25<2.82-Butanone (MEK) ug/m3 11.9 3 2512.2Acetone ug/m3 34.2 8 2531.5Benzene ug/m3 .52J 250.54JBromodichloromethane ug/m3 ND 25<0.53Bromoform ug/m3 ND 25<2.8Bromomethane ug/m3 ND 25<0.36Carbon disulfide ug/m3 ND 25<0.39Carbon tetrachloride ug/m3 .34J 250.35JChlorobenzene ug/m3 ND 25<0.31Chloroform ug/m3 .48J 250.52Jcis-1,2-Dichloroethene ug/m3 ND 25<0.32cis-1,3-Dichloropropene ug/m3 ND 25<0.44Dibromochloromethane ug/m3 ND 25<0.59Dichlorodifluoromethane ug/m3 2.5 2 252.5Ethylbenzene ug/m3 1J 251.0JIsopropylbenzene (Cumene) ug/m3 ND 25<0.48m&p-Xylene ug/m3 ND 25<0.86Methyl-tert-butyl ether ug/m3 ND 25<0.28Methylene Chloride ug/m3 ND 25<2.0Naphthalene ug/m3 ND 25<2.5o-Xylene ug/m3 ND 25<0.39Styrene ug/m3 9.0 3 259.3tert-Butyl Alcohol ug/m3 1J 251.0JTetrachloroethene ug/m3 ND 25<0.57Toluene ug/m3 1.6 0 251.6trans-1,2-Dichloroethene ug/m3 ND 25<0.34




Minneapolis, MN 55414(612)607-1700

Page 8 of 14

#=QC#



1052888419-0338-102 7613 Lake St., Riv


Parameter UnitsDup



trans-1,3-Dichloropropene ug/m3 ND 25<0.57Trichloroethene ug/m3 ND 25<0.35Trichlorofluoromethane ug/m3 1.4J 251.3JVinyl acetate ug/m3 ND 25<0.36Vinyl chloride ug/m3 ND 25<0.20

Parameter UnitsDup



1,1,1-Trichloroethane ug/m3 6.3 2 256.41,1,2-Trichloroethane ug/m3 ND 25<0.331,1-Dichloroethane ug/m3 ND 25<0.181,1-Dichloroethene ug/m3 ND 25<0.211,2,4-Trichlorobenzene ug/m3 ND 25<4.81,2-Dibromoethane (EDB) ug/m3 ND 25<0.471,2-Dichlorobenzene ug/m3 ND 25<0.551,2-Dichloroethane ug/m3 ND 25<0.261,2-Dichloropropane ug/m3 ND 25<0.251,4-Dichlorobenzene ug/m3 ND 25<1.21,4-Dioxane (p-Dioxane) ug/m3 ND 25<2.02-Butanone (MEK) ug/m3 18.6 1 2518.7Acetone ug/m3 65.4 6 2569.2Benzene ug/m3 3.0 0 253.0Bromodichloromethane ug/m3 ND 25<0.39Bromoform ug/m3 ND 25<2.1Bromomethane ug/m3 .33J 250.33JCarbon disulfide ug/m3 1.3 0 251.3Carbon tetrachloride ug/m3 ND 25<0.21Chlorobenzene ug/m3 ND 25<0.22Chloroform ug/m3 .42J 250.41Jcis-1,2-Dichloroethene ug/m3 1.8 0 251.8cis-1,3-Dichloropropene ug/m3 ND 25<0.32Dibromochloromethane ug/m3 ND 25<0.43Dichlorodifluoromethane ug/m3 2.1 1 252.1Ethylbenzene ug/m3 4.0 0 254.0Isopropylbenzene (Cumene) ug/m3 ND 25<0.35m&p-Xylene ug/m3 16.1 1 2515.9Methyl-tert-butyl ether ug/m3 ND 25<0.20Methylene Chloride ug/m3 2.4J 252.5JNaphthalene ug/m3 7.9 5 257.6o-Xylene ug/m3 5.3 0 255.3Styrene ug/m3 1.2J 251.2Jtert-Butyl Alcohol ug/m3 8.7 1 258.8Tetrachloroethene ug/m3 4.7 2 254.8Toluene ug/m3 10 1 2510.0




Minneapolis, MN 55414(612)607-1700

Page 9 of 14

#=QC#



1052888419-0338-102 7613 Lake St., Riv


Parameter UnitsDup



trans-1,2-Dichloroethene ug/m3 ND 25<0.25trans-1,3-Dichloropropene ug/m3 ND 25<0.42Trichloroethene ug/m3 74.1 1 2574.6Trichlorofluoromethane ug/m3 1.1J 251.2JVinyl acetate ug/m3 ND 25<0.26Vinyl chloride ug/m3 ND 25<0.15




Minneapolis, MN 55414(612)607-1700

Page 10 of 14

#=QL#

QUALIFIERS


1052888419-0338-102 7613 Lake St., Riv

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.ND - Not Detected at or above adjusted reporting limit.TNTC - Too Numerous To CountJ - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PQL - Practical Quantitation Limit.RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision andbias for a specific analyte in a specific matrix.S - Surrogate1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte isa combined concentration.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.




Minneapolis, MN 55414(612)607-1700

Page 11 of 14

#=CR#

QUALITY CONTROL DATA CROSS REFERENCE TABLE


1052888419-0338-102 7613 Lake St., Riv

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10528884001 694221SG-6 TO-15




Minneapolis, MN 55414(612)607-1700

Page 12 of 14

08/18/2020 Page 14 of 14

Appendix E Tier 2 Remediation Objective & Fate/Transport Modeling Spreadsheets

Soil Layer Input for Groundwater Contamination

Soil LayerLi (Thickness of soil layer i)

- cm

W (Moisture Content) -

g water/g soil

ρb,i (Dry Soil Bulk Density) -

g/cm3

ρs,i (Soil Particle Density)

g/cm3

ΘW,i (Water-Filled Porosity of soil layer i) -

cm3/cm3

ΘT,i (Total Porosity of

soil layer i) - cm3/cm3

Θa,i (Air-Filled Porosity of


J&E11 - Dieff (Effective diffusion coefficient for soil

layer i) - cm2/sLi / Dieff

L1 142.4 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 2.464E+04L2 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L3 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L4 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00Lcap 37.5 NA NA NA 0.39 0.43 0.043 1.566E-05 2.395E+06Lcrack 10 NA NA NA 0.15 0.43 0.28 5.616E-03 NALT = 179.9 *Does not include Lcrack

Calculated Effective Diffusion Coefficients Residential GW Res Soil GasJ&E9 - DTeff (Total effective diffusion coefficient for vapor transport in porous media for multiple layers) - cm2/s, Conditional on Σni=1Li = LT 7.435E-05 5.778E-03J&E15 - Deffcrack (Effective diffusion coefficient through the cracks) - cm2/s 5.616E-03 5.616E-03Default ValuesAB (surface area of enclosed space at or below grade) cm2 Residential = 1X106, Ind/Com = 4.0x106 1.000E+06 1.000E+06Qbldg (Building ventilation rate) - cm3/s Slab on Grade: Residential = 35,900, Ind/Com = 315,000, or Site-Specific in Tier 3 35,900 35,900Lcrack (Slab Thickness) - 10 cm 10 10LB (Length of Building) - cm Residential = 1000, Ind/Com = 2000, or Site-Specific in Tier 3 1,000 1,000WB (Width of Building) - cm Residential = 1000, Ind/Com = 2000, or Site-Specific in Tier 3 1,000 1,000w (Floor-Wall seam gap) - 0.1 cm 0.1 0.1THQ (Target Hazard Quotient) - unitless 1 1 1ATnc (Averaging Time for non-carcinogens) - years Res. = 30, Ind/Com = 25 30 30ED (Exposure Duration) - years Residential = 30, Ind/Com = 25 30 30EF (Exposure Frequency) - days/year Residential = 350, Ind/Com = 250 350 350Chemical Specific ValuesRfC (Reference Concentration) - ug/m3 4.000E-02 4.000E-02Di (Diffusivity in air) - cm2/s 7.200E-02 7.200E-02Dw (Diffusivity in water) - cm2/s 8.200E-06 8.200E-06H’TS (Henry’s Constant at 13°C) - unitless 4.000E-01 4.000E-01J&E Calculated ValuesJ&E14 - Acrack (Area of total cracks) - cm2 400.0 400.0J&E7 - α (Attenuation factor - diffusion only) - Qsoil = 0 - unitless 4.054E-06 6.223E-06J&E7 - α (Attenuation factor - diffusion and advection) - Qsoil = 83.33 - unitless 1.146E-05 7.601E-04J&E2 - ROindoor-air (Indoor air remediation objective-Non-Carcinogenic) - mg/m3 4.171E-02 4.171E-02J&E4 Tier 2 SGRO (J&E4) - diffusion only - mg/m3 10289.421 6,703.05J&E6 Tier 2 GRO (J&E6) - diffusion only - mg/L 25.724 16.758J&E4 Tier 2 SGRO (J&E4) - diffusion and advection - mg/m3 3,641.248 54.876J&E6 Tier 2 GRO (J&E6) - diffusion and advection - mg/L 9.103 0.137

=Field Measurement =Calculated Value =Default Value =Chemical Specific

Soil Layer Input for Soil Gas Contamination


- cm


g water/g soil


g/cm3

ρs,i (Soil Particle Density) g/cm3


cm3/cm3







L1 142.4 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 2.464E+04L2 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L3 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L4 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00Lcrack 10 NA NA NA 0.15 0.43 0.28 5.616E-03 NALT = 142.4 *Does not include cap fringe and Lcrack

Calculated Tier 2 Values Spreadsheet Calculated Value - Non-Carcinogen

Non-Carcinogenic Value Adjusted for Potential

Cumulative EffectsTetrachloroethylene

SGRO - diffusion and advection - mg/m3 54.9 11.0GRO - diffusion and advection - mg/L 9.10 1.82

Contaminant of Concern: Tetrachloroethylene Building Construction: Slab on Grade

Spreadsheet 1 Tier 2 Soil Gas and Groundwater Remediation Objectives - Indoor Inhalation Exposure Route - Non-Carcinogenic Former River Forest Cleaners7601-7621 Lake Street, River Forest, IL

Soil Layer Input for Groundwater Contamination


- cm


g water/g soil


g/cm3



cm3/cm3







L1 142.4 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 2.464E+04L2 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L3 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L4 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00Lcap 37.5 NA NA NA 0.39 0.43 0.043 1.566E-05 2.395E+06Lcrack 10 NA NA NA 0.15 0.43 0.28 5.616E-03 NALT = 179.9 *Does not include Lcrack

Calculated Effective Diffusion Coefficients Residential GW Res Soil GasJ&E9 - DTeff (Total effective diffusion coefficient for vapor transport in porous media for multiple layers) - cm2/s, Conditional on Σni=1Li = LT 7.435E-05 5.778E-03J&E15 - Deffcrack (Effective diffusion coefficient through the cracks) - cm2/s 5.616E-03 5.616E-03Default ValuesAB (surface area of enclosed space at or below grade) cm2 Residential = 1X106, Ind/Com = 4.0x106 1.000E+06 1.000E+06Qbldg (Building ventilation rate) - cm3/s Slab on Grade: Residential = 35,900, Ind/Com = 315,000, or Site-Specific in Tier 3 35,900 35,900Lcrack (Slab Thickness) - 10 cm 10 10LB (Length of Building) - cm Residential = 1000, Ind/Com = 2000, or Site-Specific in Tier 3 1,000 1,000WB (Width of Building) - cm Residential = 1000, Ind/Com = 2000, or Site-Specific in Tier 3 1,000 1,000w (Floor-Wall seam gap) - 0.1 cm 0.1 0.1TR (Target risk or the increased chance of developing cancer over a lifetime due to exposure to a chemical) - unitless Residental = 10-6, Ind/Com = 10-6 1.000E-06 1.000E-06ATc (Averaging Time for carcinogens) - 70 years 70 70ED (Exposure Duration) - years Residential = 30, Ind/Com = 25 30 30EF (Exposure Frequency) - days/year Residential = 350, Ind/Com = 250 350 350Chemical Specific ValuesURF (Unit Risk Factor) - (ug/m3)-1 2.600E-07 2.600E-07Di (Diffusivity in air) - cm2/s 7.200E-02 7.200E-02Dw (Diffusivity in water) - cm2/s 8.200E-06 8.200E-06H’TS (Henry’s Constant at 13°C) - unitless 4.000E-01 4.000E-01J&E Calculated ValuesJ&E14 - Acrack (Area of total cracks) - cm2 400.0 400.0J&E7 - α (Attenuation factor - diffusion only) - Qsoil = 0 - unitless 4.054E-06 6.223E-06J&E7 - α (Attenuation factor - diffusion and advection) - Qsoil = 83.33 - unitless 1.146E-05 7.601E-04J&E1 - ROindoor-air (Indoor air remediation objective-Carcinogenic) - mg/m3 9.359E-03 9.359E-03J&E4 Tier 2 SGRO (J&E4) - diffusion only - mg/m3 2.309E+03 1.504E+03J&E6 Tier 2 GRO (J&E6) - diffusion only - mg/L 5.771E+00 3.760E+00J&E4 Tier 2 SGRO (J&E4) - diffusion and advection - mg/m3 8.169E+02 1.231E+01J&E6 Tier 2 GRO (J&E6) - diffusion and advection - mg/L 2.042E+00 3.078E-02

=Field Measurement =Calculated Value =Default Value =Chemical Specific

Soil Layer Input for Soil Gas Contamination


- cm


g water/g soil


g/cm3



cm3/cm3







L1 142.4 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 2.464E+04L2 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L3 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00L4 0 0.1 1.5 2.65 0.15 0.43 0.28 5.778E-03 0.000E+00Lcrack 10 NA NA NA 0.15 0.43 0.28 5.616E-03 NALT = 142.4 *Does not include cap fringe and Lcrack

Calculated Tier 2 Values Spreadsheet Calculated Value - CarcinogenTetrachloroethylene

SGRO - diffusion and advection - mg/m3 12.3GRO - diffusion and advection - mg/L 2.04

Contaminant of Concern: Tetrachloroethylene Building Construction: Slab on Grade

Spreadsheet 2 Tier 2 Soil Gas and Groundwater Remediation Objectives - Indoor Inhalation Exposure Route - Carcinogenic Former River Forest Cleaners7601-7621 Lake Street, River Forest, IL

Contam

inant of Concern:

1,1,2,2-PCA

1,1,2-TCA

1,1-DC

A1,2-D

CA

1,2-DC

P2-

butanone2-

hexanone2-

hexanoneAcetone

Benzene

Brom

omethane

Chloroform

cis-1,2-D

CE

Dibrom

ochlorom

ethaneM

ethylene C

hloridePC

Etrans-1,2-

DC

ETC

EVinyl

Chloride

Field Measured or Site-Specific Param

eters:

Csoil (Detected Soil C

oncentration) - mg/kg

(max. DL)

(B4100)Site Specific

4.454.45

4.454.45

4.4544.5

1113.8

1112

4.454.45

1174.45

22.2940

4.45226

7.20

foc (Organic C

arbon Content) - g/g

Surface Soil = 0.006, Subsurface Soil = 0.002, orSite Specific

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.00810.0081

0.0081cm

/s:5.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

K (Hydraulic C

onductivity) - m/yr

Site Specific16.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

16.7816.78

i (Hydraulic G

radient) - m/m

Site Specific0.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

ft:175

175175

175175

175175

175175

175175

175175

175175

175175

175175

L (Source Length Parallel to Groundw

ater Flow) - m

Site Specific53.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

53.3453.34

Chem

ical-Specific Parameters:

H' (H

enry's Law C

onstant) - unitlessC

hemical Specific (TAC

O Appendix C

, Table E)1.50E-02

3.73E-022.30E-01

4.00E-021.10E-01

2.30E-033.80E-03

3.80E-031.60E-03

2.30E-012.56E-01

1.50E-011.70E-01

3.20E-029.02E-02

7.38E-013.90E-01

4.10E-011.11E+00

Koc (Organic C

arbon Partition Coef) - cm

3/g or L/kgC

hemical Specific (TAC

O Appendix C

, Table E or Table I)9.50E+01

5.01E+013.20E+01

2.00E+015.00E+01

2.00E+001.50E+01

1.50E+017.80E-01

5.00E+011.00E+01

5.00E+014.00E+01

6.92E+011.30E+01

6.31E+025.00E+01

1.00E+021.58E+01

Default Param

eters:

Θw

(Water Filled Porosity) - Lw

ater/LsoilC

alculated (SSL Equation S20) or Surface Soil (top 1 m

eter) = 0.15, Subsurface Soil (below 1 m

eter) = 0.30,G

ravel = 0.20, Sand = 0.18, Silt = 0.16, or Clay = 0.17

0.300.30

0.300.30

0.300.30

0.300.30

0.300.30

0.300.30

0.300.30

0.300.30

0.300.30

0.30

Θa (Air Filled Porosity) - Lpore/Lsoil

Calculated (SSL Equation S21) or Surface Soil (top 1

meter) = 0.28, Subsurface Soil (below

1 meter) = 0.13,

Gravel = 0.05, Sand = 0.14, Silt = 0.24, or C

lay = 0.190.13

0.130.13

0.130.13

0.130.13

0.130.13

0.130.13

0.130.13

0.130.13

0.130.13

0.130.13

ρb (Dry Soil Bulk Density) - kg/L or g/cm3

1.5 or Gravel = 2.0, Sand = 1.8, Silt = 1.6, C

lay = 1.7 orSite Specific

1.51.5

1.51.5

1.51.5

1.51.5

1.51.5

1.51.5

1.51.5

1.51.5

1.51.5

1.5

d (Mixing Zone Depth) - m

Calculated (Equation S25) or 2 m

(TACO

Appx C, Table B)

22

22

22

22

22

22

22

22

22

2

I (Infiltration Rate) - m/yr

0.3 (TACO

Appendix C, Table B)

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.3SSL Equations

DF (Dilution Factor) - unitlessS22 DF = 20 (default) or 1 + [(K*i*d)/(I*L)]

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.0020.00

20.00

Soil-Water Partition C

oefficient (Kd) - cm

3/gS19 K

d =Koc *foc

0.76950.40581

0.25920.162

0.4050.0162

0.12150.1215

0.0063180.405

0.0810.405

0.3240.56052

0.10535.1111

0.4050.81

0.12798

S17 Csoil =C

w *(Kd +(Θ

w +Θa *H

')/ρb ) - solved for C

w (C

w = Target Soil Leachate Concentration)

4.5847.307

9.28812.176

7.241205.638

344.90311.808

537.6433.200

14.6777.201

217.1765.830

70.900174.882

6.966216.158

16.974

Predicted Groundw

ater Concentration Associated

with M

aximum

Detected Soil C

oncentration - mg/L

S18 Cw = DF*G

Wobj - solved for G

Wobj

0.2290.365

0.4640.609

0.36210.282

17.2450.590

26.8820.160

0.7340.360

10.8590.291

3.5458.744

0.34810.808

0.849Tier 1 G

RO (m

g/L): Class I G

roundwater

0.000430.005

0.70.005

0.0054.2

0.0350.035

6.30.005

0.00980.0002

0.070.14

0.0050.005

0.10.005

0.002Tier 1 G

RO (m

g/L): Class II G

roundwater

0.000430.05

3.50.025

0.0254.2

0.0350.035

6.30.025

0.0490.001

0.20.14

0.050.025

0.50.025

0.01

Spreadsheet 3 SSL Equations to D

etermine Predicted C

ontaminant M

igration from Soil to G

roundwater

Former River Forest Cleaners - 7601-7621 Lake Street, River Forest, IL

Contam

inant of Concern:

1,1,2,2-PCA

1,1,2-TCA

1,1-DC

A1,2-D

CA

1,2-DC

P2-butanone

2-h

exa

none

2-h

exa

none

2-hexanoneAcetone

Benzene


eters:D

ata source:Spreadsheet 3

Spreadsheet 3Spreadsheet 3


Spreadsheet 3S

pre

ad

sheet 3

Sp

read

sheet 3

MW

-6019Spreadsheet 3

Spreadsheet 3Conc. at the Source -- C

(source) - mg/L:

0.230.37

0.460.61

0.3610.28

17.2

50.5

91.25

26.880.16

Dist. along centerline of gw

plume (ft)

in direction of gw flow

(X) - cm:

11.5191.04

17.2459.34

226.051.00

3,0

49

532.8

5353.85

1.0074.74

3512,775

5251,809

6,89030

92,9

34

16,2

41

10,78530

2,278Source w

idth perpendicular to gw flow

direction in horiz. plane (Sw

) - cm:

234234

234234

234234

234

234

44234

2347,132

7,1327,132

7,1327,132

7,1327,1

32

7,1

32

1,3417,132

7,132cm

/s:5.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.3

2E

-05

5.3

2E

-05

5.32E-055.32E-05

5.32E-05Hydraulic Conductivity (K) - cm

/day:4.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.6

0E

+00

4.6

0E

+00

4.60E+004.60E+00

4.60E+00

Hydraulic Gradient (i) - cm

/cm:

0.049420.04942

0.049420.04942

0.049420.04942

0.0

4942

0.0

4942

0.049420.04942

0.04942C

hemical-Specific Param

eters:

First Order Degradation Constant (λ) - day-1:

Chemical Specific (35 IAC 742, App. C, Table E)

Evaluate under Tier 31.54E-02

9.50E-041.90E-03

1.90E-032.70E-04

4.95E-020.0

0E

+00

0.0

0E

+00

0.00E+004.95E-02

9.00E-04D

efault Parameters:

Source width perpendicular to gw

flow direction in vertical plane

(Sd) - cm:

200200

200200

200200

200

200

200200

200

η (Total Soil Porosity) - Lpore/Lsoil0.43, or G

ravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated

0.430.43

0.430.43

0.430.43

0.4

30.4

30.43

0.430.43

RB

CA C

alculations:Longitudinal Dispersivity (α

x ) - cmR

-16 αx =0.10*X :

35.08277.49

52.55180.87

689.003.05

9293.3

51624.1

31078.53

3.05227.81

Transverse Dispersivity (αy ) - cm

R-17 α

y =αx /3 :

11.6992.50

17.5260.29

229.671.02

3097.7

8541.3

8359.51

1.0275.94

Vertical Dispersivity (αz ) - cm

R-18 α

z =αx /20 :

1.7513.87

2.639.04

34.450.15

464.6

781.2

153.93

0.1511.39

Error Functions:Β

1 = Sw /(4*SQ

RT(αy *X))

27.843.52

18.595.40

1.42320.42

0.1

10.6

00.17

320.424.29

From App. C, Table G

enter corresp. error function value -- erf(Β

1 ):1.000000

1.0000001.000000

1.0000000.954994

1.0000000.1

18146

0.6

04901

0.1902871.000000

1.000000

Β2 = S

d /(2*SQRT(α

z *X))4.03

0.512.69

0.780.21

46.400.0

20.0

90.13

46.400.62



2 ):1.000000

0.5289350.999859

0.7311770.228395

1.0000000.0

17170

0.0

98006

0.1471141.000000

0.620021

Specific Discharge (U) - cm/day

R-19 U=K*i/Θ

T :0.528

0.5280.528

0.5280.528

0.5280.5

28

0.5

28

0.5280.528

0.528Interm

ediate Solutions for R-26:

a = X/2*αx =

55

55

55

55

55

5

b = SQRT (1+(4*λ*α

x /U) = 2.256

1.7311.325

1.8981.552

1.4641.0

00

1.0

00

1.0001.464

1.598

c = (1-b)*a = -6.281

-3.655-1.626

-4.490-2.760

-2.3180.0

00

0.0

00

0.000-2.318

-2.988

d = EXP(c) = 0.002

0.0260.197

0.0110.063

0.0981.0

00

1.0

00

1.0000.098

0.050C

(x) = d*erf(Β2)*erf(Β1)*C(source) =

0.000428750.00499959

0.091369030.00499715

0.004999201.01197778

0.0

3498240

0.0

3499985

0.034992212.64582401

0.00499842

R-26 Concentration at distance(X) from

the source -- C(x) - m

g/L:0.00043

0.0050.091

0.0050.005

1.00.0

35

0.0

35

0.0352.6

0.005Tier 1 G

RO Class I G

roundwater (m

g/L):0.00043

0.0050.7

0.0050.005

4.20.0

35

0.0

35

0.0356.3

0.005Tier 1 G

RO Class II G

roundwater (m

g/L):0.00043

0.053.5

0.0250.025

4.20.0

35

0.0

35

0.0356.3

0.025

Spreadsheet 4 R

BC

A Equations to Determ

ine the Predicted Extent of Contam

inant Migration in G

roundwater


Page of

12

Contam

inant of Concern:

Brom

omethane

Chloroform

cis-1,2-DC

ED

ibromochloro

methane

Methylene

Chloride

PC

EPC

Etrans-1,2-D

CE

TCE

Vin

yl Chlo

ride

Vinyl Chloride


eters:D

ata source:Spreadsheet 3



Sp

read

sheet 3

MW

1000 (2010)Spreadsheet 3

Spreadsheet 3S

pre

ad

sheet 3

TT-MW

-100Conc. at the Source -- C

(source) - mg/L:

0.730.36

10.860.29

3.548.7

424.00

0.3510.81

0.8

50.948

Dist. along centerline of gw

plume (ft)

in direction of gw flow

(X) - cm:

5.90362.15

299.503.55

15.71181.0

5215.35

66.85354.80

379.0

0388.25

18011,038

9,129108

4795,5

18

6,5642,038

10,81411,5

52

11,834Source w


direction in horiz. plane (Sw

) - cm:

234234

234234

234234

234234

234234

2347,132

7,1327,132

7,1327,132

7,1

32

7,1327,132

7,1327,1

32

7,132cm

/s:5.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.3

2E

-05

5.32E-055.32E-05

5.32E-055.3

2E

-05

5.32E-05Hydraulic Conductivity (K) - cm

/day:4.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.6

0E

+00

4.60E+004.60E+00

4.60E+004.6

0E

+00

4.60E+00

Hydraulic Gradient (i) - cm

/cm:

0.049420.04942

0.049420.04942

0.049420.0

4942

0.049420.04942

0.049420.0

4942

0.04942C

hemical-Specific Param

eters:

First Order Degradation Constant (λ) - day-1:

Chemical Specific (35 IAC 742, App. C, Table E)

1.82E-023.90E-04

2.40E-043.85E-03

1.20E-029.6

0E

-04

9.60E-042.40E-04

4.20E-042.4

0E

-04

2.40E-04D

efault Parameters:



(Sd) - cm:

200200

200200

200200

200200

200200

200


ravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or Calculated

0.430.43

0.430.43

0.430.4

30.43

0.430.43

0.4

30.43

RB

CA C

alculations:Longitudinal Dispersivity (α

x ) - cmR

-16 αx =0.10*X :

17.981103.83

912.8810.82

47.88551.8

4656.39

203.761081.43

1155.1

91183.39


R-17 α

y =αx /3 :

5.99367.94

304.293.61

15.96183.9

5218.80

67.92360.48

385.0

6394.46

Vertical Dispersivity (αz ) - cm

R-18 α

z =αx /20 :

0.9055.19

45.640.54

2.3927.5

932.82

10.1954.07

57.7

659.17

Error Functions:Β

1 = Sw /(4*SQ

RT(αy *X))

54.310.88

1.0790.26

20.401.7

71.49

4.790.90

0.8

50.83



1 ):1.000000

0.7891560.869717

1.0000001.000000

0.9

87680

0.9646391.000000

0.7984570.7

68154

0.756843

Β2 = S

d /(2*SQRT(α

z *X))7.86

0.130.15

13.072.95

0.2

60.22

0.690.13

0.1

20.12



2 ):1.000000

0.1437790.173418

1.0000000.999971

0.2

82965

0.2394040.673680

0.1467240.1

37452

0.134209

Specific Discharge (U) - cm/day

R-19 U=K*i/Θ

T :0.528

0.5280.528

0.5280.528

0.5

28

0.5280.528

0.5280.5

28

0.528Interm

ediate Solutions for R-26:

a = X/2*αx =

55

55

55

55

55

5

b = SQRT (1+(4*λ*α

x /U) = 1.865

2.0641.631

1.1472.313

2.2

39

2.4021.171

2.1071.7

60

1.775

c = (1-b)*a = -4.325

-5.319-3.153

-0.735-6.566

-6.1

93

-7.012-0.853

-5.535-3

.802

-3.875

d = EXP(c) = 0.013

0.0050.043

0.4800.001

0.0

02

0.0010.426

0.0040.0

22

0.021

C(x) = d*erf(Β2)*erf(Β1)*C

(source) = 0.00971187

0.000199990.06996609

0.139830080.00498945

0.0

0499450

0.004995320.09999770

0.004998500.0

0199991

0.00199887

R-26 Concentration at distance(X) from

the source -- C(x) - m

g/L:0.0097

0.00020.07

0.140.005

0.0

05

0.0050.1

0.0050.0

02

0.002Tier 1 G

RO Class I G

roundwater (m

g/L):0.0098

0.00020.07

0.140.005

0.0

05

0.0050.1

0.0050.0

02

0.002Tier 1 G

RO Class II G

roundwater (m

g/L):0.049

0.0010.2

0.140.05

0.0

25

0.0250.5

0.0250.0

10.01

Spreadsheet 4 R

BC


ine the Predicted Extent of Contam

inant Migration in G

roundwater


Page of

22

Contam

inant of Concern and D

istribution:1,1,2,2-PC

A1,1,2-TC

A1,1-D

CA

1,2-DC

A1,2-D

CP

2-butanone2-hexanone

2-hexanone2-hexanone

AcetoneB

enzeneField M

easured or Site-Specific Parameters:

Data source:Spreadsheet 3




Spreadsheet 3M

W-6019


Conc. at the Source -- C

(source) - mg/L:

0.229190.36533

0.464380.60881

0.3620610.28192

17.245170.59038

1.2500026.88215

0.16002D

ist. (ft) from source point to nearest surface w

ater body along centerline of gw

plume in direction of gw

flow (X) - cm

:3,575

3,5753,575

3,5753,575

3,5753,575

3,5753,575

3,5753,575

108,966108,966

108,966108,966

108,966108,966

108,966108,966

108,966108,966

108,966Source w


direction (ft) in horiz. plane (Sw

) - cm:

234234

234234

234234

234234

44234

2347,132

7,1327,132

7,1327,132

7,1327,132

7,1321,341

7,1327,132

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-05H

ydraulic Conductivity (K) - cm

/day:4.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

Hydraulic G

radient (i) - cm/cm

:0.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

Chem


First Order Degradation C

onstant (λ) - day-1:C

hemical Specific (35 IAC

742, App. C, Table E)

1.54E-029.50E-04

1.90E-031.90E-03

2.70E-044.95E-02

0.00E+000.00E+00

0.00E+004.95E-02

9.00E-04D

efault Parameters:



(Sd) - cm:

200200

200200

200200

200200

200200

200


ravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or

Calculated

0.430.43

0.430.43

0.430.43

0.430.43

0.430.43

0.43R

BC

A Calculations:

Longitudinal Dispersivity (αx ) - cm

R-16 α

x =0.10*X :10896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60


R-17 α

y =αx /3 :

3632.203632.20

3632.203632.20

3632.203632.20

3632.203632.20

3632.203632.20

3632.20Vertical Dispersivity (α

z ) - cmR

-18 αz =α

x /20 : 544.83

544.83544.83

544.83544.83

544.83544.83

544.83544.83

544.83544.83

Error Functions:Β

1 = Sw /(4*SQ

RT(αy *X))

0.090.09

0.090.09

0.090.09

0.090.09

0.020.09

0.09

From App. C

, Table G enter corresp. error function value -- erf(Β

1 ):0.100863

0.1008630.100863

0.1008630.100863

0.1008630.100863

0.1008630.019015

0.1008630.100863

Β2 = S

d /(2*SQRT(α

z *X))0.01

0.010.01

0.010.01

0.010.01

0.010.01

0.010.01

From App. C


2 ):0.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

Specific Discharge (U) - cm

/dayR

-19 U=K*i/Θ

T :0.528

0.5280.528

0.5280.528

0.5280.528

0.5280.528

0.5280.528

Intermediate Solutions for R

-26:a = X/2*α

x = 5

55

55

55

55

55

b = SQRT (1+(4*λ*α

x /U) =

35.6608.910

12.56012.560

4.82563.915

1.0001.000

1.00063.915

8.675c = (1-b)*a =

-173.298-39.548

-57.802-57.802

-19.123-314.574

0.0000.000

0.000-314.574

-38.375d = EXP(c) =

0.0000.000

0.0000.000

0.0000.000

1.0001.000

1.0000.000

0.000C


0.000000000.00000000

0.000000000.00000000

0.000000000.00000000

0.025471600.00087200

0.000348060.00000000

0.00000000

R-26 C

oncentration at distance(X) from the source -- C

(x) - mg/L:

0.00000.000

0.0000.0000

0.000000.000

0.0250.001

0.0000.000

0.00000W

ater Quality Standards (35 IAC

302) or IEPA’s Derived Water

Quality C

riteria- Chronic Aquatic Toxicity or H

uman H

ealth (mg/L):

0.00320.012

20.023

0.005726

0.950.95

0.95120

0.31

Spreadsheet 5 R

BC


ine Predicted Concentrations in G

roundwater at N

earest Surface Water B

ody Form

er River Forest Cleaners - 7601-7621 Lake Street, River Forest, IL

Page of

12

Contam

inant of Concern and D

istribution:B

romom

ethaneC

hloroformcis-1,2-D

CE

Dibrom

ochlorom

ethaneM

ethylene C

hloridePC

EPC

Etrans-1,2-D

CE

TCE

Vinyl Chloride

Vinyl Chloride


eters:Data source:




MW

1000 (2010)Spreadsheet 3


TT-MW

-100C

onc. at the Source -- C(source) - m

g/L:0.73387

0.3600310.85880

0.291503.54500

8.7440924.00000

0.3483110.80788

0.848700.94800

Dist. (ft) from

source point to nearest surface water body along

centerline of gw plum

e in direction of gw flow

(X) - cm:

3,5753,575

3,5753,575

3,5753,575

3,5753,575

3,5753,575

3,575108,966

108,966108,966

108,966108,966

108,966108,966

108,966108,966

108,966108,966


flow direction (ft)

in horiz. plane (Sw) - cm

:234

234234

234234

234234

234234

234234

7,1327,132

7,1327,132

7,1327,132

7,1327,132

7,1327,132

7,1325.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

5.32E-055.32E-05

Hydraulic C

onductivity (K) - cm/day:

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+004.60E+00

4.60E+00

Hydraulic G

radient (i) - cm/cm

:0.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

0.049420.04942

Chem


First Order Degradation C

onstant (λ) - day-1:C

hemical Specific (35 IAC

742, App. C, Table E)

1.82E-023.90E-04

2.40E-043.85E-03

1.20E-029.60E-04

9.60E-042.40E-04

4.20E-042.40E-04

2.40E-04D

efault Parameters:



(Sd) - cm:

200200

200200

200200

200200

200200

200


ravel = 0.25, Sand = 0.32, Silt = 0.40, Clay = 0.36, or

Calculated

0.430.43

0.430.43

0.430.43

0.430.43

0.430.43

0.43R

BC

A Calculations:

Longitudinal Dispersivity (αx ) - cm

R-16 α

x =0.10*X :10896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60

10896.6010896.60


R-17 α

y =αx /3 :

3632.203632.20

3632.203632.20

3632.203632.20

3632.203632.20

3632.203632.20

3632.20Vertical Dispersivity (α

z ) - cmR

-18 αz =α

x /20 : 544.83

544.83544.83

544.83544.83

544.83544.83

544.83544.83

544.83544.83

Error Functions:Β

1 = Sw /(4*SQ

RT(αy *X))

0.090.09

0.090.09

0.090.09

0.090.09

0.090.09

0.09

From App. C


1 ):0.100863

0.1008630.100863

0.1008630.100863

0.1008630.100863

0.1008630.100863

0.1008630.100863

Β2 = S

d /(2*SQRT(α

z *X))0.01

0.010.01

0.010.01

0.010.01

0.010.01

0.010.01

From App. C


2 ):0.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

0.0146440.014644

Specific Discharge (U) - cm

/dayR

-19 U=K*i/Θ

T :0.528

0.5280.528

0.5280.528

0.5280.528

0.5280.528

0.5280.528

Intermediate Solutions for R

-26:a = X/2*α

x = 5

55

55

55

55

55

b = SQRT (1+(4*λ*α

x /U) =

38.7645.760

4.56117.851

31.4828.956

8.9564.561

5.9714.561

4.561c = (1-b)*a =

-188.819-23.800

-17.804-84.254

-152.408-39.779

-39.779-17.804

-24.855-17.804

-17.804d = EXP(c) =

0.0000.000

0.0000.000

0.0000.000

0.0000.000

0.0000.000

0.000C


0.000000000.00000000

0.000000000.00000000

0.000000000.00000000

0.000000000.00000000

0.000000000.00000000

0.00000000

R-26 C

oncentration at distance(X) from the source -- C

(x) - mg/L:

0.00000.000

0.0000.0000

0.000000.000

0.0000.000

0.0000.00000

0.000W

ater Quality Standards (35 IAC

302) or IEPA’s Derived Water

Quality C

riteria- Chronic Aquatic Toxicity or H

uman H

ealth (mg/L):

(0.0098)0.13

1.10.0098

0.330.15

0.1534

0.0250.0015

0.0015

Spreadsheet 5 R

BC


ine Predicted Concentrations in G

roundwater at N

earest Surface Water B

ody Form

er River Forest Cleaners - 7601-7621 Lake Street, River Forest, IL

Page of

22

Appendix F Local Ordinance and Draft Notification Letter

DRAFT Notification Letter

February 5, 2021 BY CERTIFIED MAIL - RETURN RECEIPT REQUESTED

Village of River ForestVillage Administrator400 Park AvenueRiver Forest, IL 60305

RE: Use of Village Ordinance (2814) 7613 Lake Street, River Forest, IL

THIS LETTER IS FOR INFORMATIONAL PURPOSES AND REQUIRES NO ACTION ON YOUR PART.

Environmental response actions have been performed at the property located at 7613 Lake Street in River Forest, Illinois. The response actions were performed voluntarily to address the impacts associated with historical dry cleaning operations, and included enrolling the site into the Site Remediation Program, which is administered by the Illinois Environmental Protection Agency (Illinois EPA), conducting subsurface assessments and in-situ remediation, and submitting data and reports to the Illinois EPA for review and evaluation. These actions were performed to justify that site conditions warrant formal closure pursuant to Title 35 of the Illinois Administrative Code Part 740.

Under Illinois regulations, a local ordinance that effectively prohibits the installation and use of potable water supply wells may be used as an institutional control to allow contamination above the groundwater ingestion remediation objectives to remain in the groundwater (35 Illinois Administrative Code 742.1015). (An institutional control is a legal mechanism for imposing a restriction on land use. Groundwater is water beneath the ground stored in the pores of soil and rock; some communities and homeowners pump this water out of wells to supply potable water. Potable means fit for human consumption including drinking, bathing, preparing food, washing dishes, and so forth.) The Village of River Forest has an ordinance that strictly prohibits the human and domestic consumption of the groundwater beneath village property. The ordinance is identified as Ordinance No. 2814, and may be found in Title 5, Chapter 11 of the River Forest Village Code. The Illinois EPA has determined that the ordinance adopted by the Village of River Forest meets the regulatory requirements for use as an institutional control. The Illinois EPA has granted approval to use the groundwater ordinance as an institutional control for this project.

Portions of the Lake Street, Lathrop Avenue and Ashland Avenue public rights-of-way are included in the affected area. This means that the Village of River Forest cannot install or use a private, potable water well on portions of these properties. Based on the remediation objectives established in reliance on this ordinance, groundwater beneath the right-of-ways may not be suitable for human or domestic consumption. Illinois regulations require that the Village of River Forest be notified of these facts. Furthermore, in accordance with the requirements of 35 IAC 742.1015(e), parties seeking approval of a local ordinance as an institutional control shall provide the local municipality with the following:

• a copy of the ordinance restricting groundwater use (742.1015(b)(1)); Attached.

• a scaled map delineating the areal extent of groundwater contamination (measured or modeled) above the applicable remediation objectives (742.1015(b)(2)); See the attached Figure 10 from a document titled Focused Site Investigation Report/Remediation Objectives Report/Remedial Action Plan Addendum, and dated February 5, 2020, which was approved by the Illinois EPA on __________________.

DRAFT Notification Letter• scaled map delineating the boundaries of all properties under which groundwater is located which

exceeds the applicable groundwater remediation objectives (742.1015(b)(3)); See the attached Figure 10.

• information identifying the current owner(s) of each property identified in subsection (b)(3) of this Section (742.1015(b)(4)); and Fate and transport modeling calculations indicate that residual impacts may migrate beyond the boundaries of the Remediation Site. The owners of the Remediation Site and potentially-affected off-site properties are outlined below.


Lake Street, Lathrop Avenue, Ashland Avenue public alleyway Not applicable

Village of River Forest 400 Park Avenue River Forest, IL 60305

518 Ashland Avenue 15-12-110-040Jon B. Ver Halen Trust 518 Ashland Avenue River Forest, IL 60305

514 Ashland Avenue 15-12-110-041Stephen Glinke & Ellen Hamilton 514 Ashland Avenue River Forest, IL 60305

510 Ashland Avenue 15-12-110-042Arvind Rajagopal & Sara Jandeska 510 Ashland Avenue River Forest, IL 60305

506 Ashland Avenue 15-12-110-043Laurie Epstein Lawton 2016 Declaration of Trust 506 Ashland Avenue River Forest, IL 60305

500 Ashland Avenue 15-12-110-044Daniel Conidi 500 Ashland Avenue River Forest, IL 60305

501 & 533 Ashland Avenue 15-12-111-041 15-12-111-045

St. Luke Parish 519 Ashland Avenue River Forest, IL 60305

530 Lathrop Avenue & 515 Ashland Avenue 15-12-111-044


501 Ashland Avenue 15-12-111-045St. Luke Church 528 Lathrop Avenue River Forest, IL 60305

528 Lathrop Avenue & 7600 Lake Street

15-12-111-046 15-12-111-047 15-12-111-048 15-12-111-049


7623-7629 Lake Street 15-12-117-001 (15-12-116-019)

Chicago Title Land Trust Company (Trust Agreement dated October 10, 2007 and known as Trust No. 8002349535) ℅ David King & Associates, Inc. 1011 Lake Street, No. 313 Oak Park, IL 60305

423 Ashland Avenue 15-12-117-003Lake Lathrop Partners LLC 1525 W. Homer, Suite 400 Chicago, IL 60642

419 Ashland Avenue 15-12-117-004Life Insurance Benefits, LLC 604 N. Franklin Avenue River Forest, IL 60305

407-411 Ashland Avenue 15-12-117-016

Chatterton Condominium of River Forest Board of Owners ℅ Monroe Property Management Co. P.O. Box 6721 River Forest, IL 60305

523 Lathrop Avenue 15-12-212-008Steven Wierdak, Ann Hinrichs 523 Lathrop Avenue River Forest, IL 60305

519 Lathrop Avenue 15-12-212-009Robert and Patricia Nugent 519 Lathrop Avenue River Forest, IL 60305


• a copy of the proposed submission of the information to the current owners identified in

subsection (b)(4) (742.1015(b)(5)). Copies of the notification letters are attached.

To learn more about this project, please contact either Lake Lathrop Partners LLC, 1525 W. Homer Street, Suite 400, Chicago, IL 60642 (773/278-4237) or the Illinois EPA, Bureau of Land project manager, Jennifer Seul, 1021 North Grand Avenue East, P.O. Box 19276, Springfield, IL 62794-9276 (217/785-9399). You may also obtain a copy of the complete Illinois EPA file on this site. To do so, you may visit the Illinois EPA Document Explorer website at http://external.epa.illinois.gov/DocumentExplorer or submit a written request with signature to the Freedom of Information Act (FOIA) Officer, Illinois EPA, Bureau of Land, 1021 North Grand Avenue East, P.O. Box 19276, Springfield, Illinois 62794-9276. When requesting a copy of the file, please reference the file heading shown below:

0312615005 / Cook County River Forest / River Forest CleanersSite Remediation Program / Technical Reports

Sincerely, Lake Lathrop Partners LLC

Attachments: Copy of Village ordinance Figure 10 - Predicted Extent of Migration Copies of notification letters to owners of potentially-impacted properties

cc: Illinois EPA, Bureau of Land/Remedial Project Management Section

515 Lathrop Avenue 15-12-212-010Maureen O’Brien 515 Lathrop Avenue River Forest, IL 60305

511 Lathrop Avenue 15-12-212-011Justin and Marie Distefano 511 Lathrop Avenue River Forest, IL 60305

507 Lathrop Avenue 15-12-212-012Melissa and Carl Bergetz 507 Lathrop Avenue River Forest, IL 60305

735 Jackson Avenue 15-12-212-013River Forest Park District 401 Thatcher Avenue River Forest, IL 60305

510 Jackson Avenue 15-12-212-019Erik and Kendra Chiprich 510 Jackson Avenue River Forest, IL 60305

504 Jackson Avenue 15-12-212-020Mary Grayson 504 Jackson Avenue River Forest, IL 60305

7579 Lake Street 15-12-219-001Craig Tomera 7579 Lake Street River Forest, IL 60305

7577 Lake Street 15-12-219-002

State Bank of Countryside as Trustee Under Trust Agreement Dated December 15, 1995 and Known as Trust No. 95-1642 6734 Joliet Road Countryside, IL 60525

7575 Lake Street 15-12-219-037 (-1001 through -1019)

Centennial House Condominium Board of Owners 7575 Lake Street, #2A River Forest, IL 60305

7525 Lake Street 15-12-219-038

ASP Realty, LLC ℅ Albertson’s LLC 250 Parkcenter Blvd. Boise, ID 83706



February 5, 2021 BY CERTIFIED MAIL - RETURN RECEIPT REQUESTED Jon B. Ver Halen Trust 518 Ashland Avenue River Forest, IL 60305

To Whom It May Concern: THIS LETTER IS FOR INFORMATIONAL PURPOSES AND REQUIRES NO ACTION ON YOUR PART. Environmental response actions have been performed at the property located at 7613 Lake Street in River Forest, Illinois. The response actions were performed voluntarily to address the impacts associated with historical dry cleaning operations, and included enrolling the site into the Site Remediation Program, which is administered by the Illinois Environmental Protection Agency (Illinois EPA), conducting subsurface assessments and in-situ remediation, and submitting data and reports to the Illinois EPA for review and evaluation. These actions were performed to justify that site conditions warrant formal closure pursuant to Title 35 of the Illinois Administrative Code Part 740.

Under Illinois regulations, a local ordinance that effectively prohibits the installation and use of potable water supply wells may be used as an institutional control to allow contamination above the groundwater ingestion remediation objectives to remain in the groundwater (35 Illinois Administrative Code 742.1015). (An institutional control is a legal mechanism for imposing a restriction on land use. Groundwater is water beneath the ground stored in the pores of soil and rock; some communities and homeowners pump this water out of wells to supply potable water. Potable means fit for human consumption including drinking, bathing, preparing food, washing dishes, and so forth.) The Village of River Forest has an ordinance that strictly prohibits the human and domestic consumption of the groundwater beneath village property. The Illinois EPA has determined that the ordinance adopted by the Village of River Forest meets the regulatory requirements for use as an institutional control. The Illinois EPA has granted approval to use the groundwater ordinance as an institutional control for this project.

Your property located at 518 Ashland Avenue (PIN 15-12-110-040) is included in the area affected by the ordinance. This means that you cannot install or use a private, potable water well on this property. Based on the remediation objectives established in reliance on this ordinance, groundwater beneath this property may not be suitable for human or domestic consumption. Illinois regulations require that you be notified of these facts. The ordinance is identified as Ordinance No. 2814, and may be found at Title 5, Chapter 11 of the River Forest Village Code. If you wish to obtain a copy of the ordinance, please contact the Village of River Forest, Village Administrator, 400 Park Avenue, River Forest, IL 60305. To learn more about this project, please contact either Lake Lathrop Partners LLC, 1525 W. Homer Street, Suite 400, Chicago, IL 60642 (773/278-4237) or the Illinois EPA, Bureau of Land project manager, Jennifer Seul, 1021 North Grand Avenue East, P.O. Box 19276, Springfield, IL 62794-9276 (217/785-9399). You may also obtain a copy of the complete Illinois EPA file on this site. To do so, you may visit the Illinois EPA Document Explorer website at http://external.epa.illinois.gov/DocumentExplorer or submit a written request with signature to the Freedom of Information Act (FOIA) Officer, Illinois EPA, Bureau of Land, 1021 North Grand Avenue East, P.O. Box 19276, Springfield, Illinois 62794-9276. When requesting a copy of the file, please reference the file heading shown below:

0312615005 / Cook County River Forest / River Forest Cleaners Site Remediation Program / Technical Reports

Sincerely, Lake Lathrop Partners, LLC

cc: Illinois EPA, Bureau of Land/Remedial Project Management Section

2753 West 31st Street | Chicago, IL 60608 | phone: 773.722.9200 | fax: 773.722.9201 | pioneerees.com

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