30th March, 2011. - Environmental Protection Agency

| PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 | 6027 3/6/2011 11:06

Guidance to completing the PRTR workbook

Version 1.1.11

REFERENCE YEAR 2010

1. FACILITY IDENTIFICATION

Parent Company Name Sigma-Aldrich Ireland Limited

Facility Name Sigma-Aldrich Ireland Limited

PRTR Identification Number P0089

Licence Number P0089-04

Waste or IPPC Classes of Activity

No. class_name

5.16 The use of a chemical or biological process for the production of basic pharmaceutical products.

11.1 ############################################################################################################################################

Address 1 Vale Road

Address 2 Arklow

Address 3 County Wicklow

Address 4

Country Ireland

Coordinates of Location -6.11535 54.1424

River Basin District IEEA

NACE Code 2120

Main Economic Activity Manufacture of pharmaceutical preparations

AER Returns Contact Name Dora Forde

AER Returns Contact Email Address [email protected]

AER Returns Contact Position Environmental Health and SafetyManager

AER Returns Contact Telephone Number 0402-20300

AER Returns Contact Mobile Phone Number

AER Returns Contact Fax Number 0402-31147

Production Volume 56.0

Production Volume Units tonnes

Number of Installations 1

Number of Operating Hours in Year 6750

Number of Employees 63

User Feedback/Comments

Web Address http://www.sigmaaldrich.com/SAFC/Pharma/

2. PRTR CLASS ACTIVITIES

Activity Number Activity Name

4(e) Installations using a chemical or biological process for the production on an industrial scale of basic pharmaceutical products

50.1 General

3. SOLVENTS REGULATIONS (S.I. No. 543 of 2002)

Is it applicable? No

Have you been granted an exemption ? No

If applicable which activity class applies (as per

Schedule 2 of the regulations) ?

Is the reduction scheme compliance route being

used ? The total fugitive losses were calculated to be less than 1% of the total solvent input for 2009, which is significantly lower than the solvent regulations limit of 15%

AER Returns Workbook

http://www.epa.ie/downloads/advice/aerprtr/completinguploadingtheprtrworkbook/

4.1 RELEASES TO AIR Link to previous years emissions data | PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 | 3/6/2011 11:06

8 13 21 21 29 31 6 6 6 6 6 6 31

SECTION A : SECTOR SPECIFIC PRTR POLLUTANTS

Please enter all quantities in this section in KGs

QUANTITY

A1-7

No. Annex II Name M/C/E Method Code Designation or Description Emission Point 1 T (Total) KG/Year A (Accidental) KG/Year F (Fugitive) KG/Year

0.0 0.0 0.0 0.0

03 Carbon dioxide (CO2) M ISO 12039:2001 103.6 103.6 0.0 0.0

08 Nitrogen oxides (NOx/NO2) M ISO 10849:1996 2823.7 2823.7 0.0 0.0

07 Non-methane volatile organic compounds (NMVOC) M EN 13649:2001 55.129 55.129 0.0 0.0

47 PCDD + PCDF (dioxins + furans)(as Teq) M ALT

MCERT approved

contractor using in house

method MMOO5 based on

BS EN 1948 0.000139 0.000139 0.0 0.0

11 Sulphur oxides (SOx/SO2) M ALT Infrared analyser 47.15 47.15 0.0 0.0

* Select a row by double-clicking on the Pollutant Name (Column B) then click the delete button

SECTION B : REMAINING PRTR POLLUTANTS


QUANTITY


0.0 0.0 0.0 0.0


SECTION C : REMAINING POLLUTANT EMISSIONS (As required in your Licence)


QUANTITY

Pollutant No. Name M/C/E Method Code Designation or Description Emission Point 1 T (Total) KG/Year A (Accidental) KG/Year F (Fugitive) KG/Year

0.0 0.0 0.0 0.0

210 Dust M ALT

external laboratory

analysis Gravimat with ISO

9096 and BS:EN 13284

:2002 for flow temperature

and total particulate matter 1.146 0.0 0.0 0.0

337 Pharmaceutical actives M ALT

external laboratory

analysis Gravimat with ISO

9096 and BS:EN 13284

:2002 for flow temperature

and total particulate matter 1.146 0.0 0.0 0.0


Additional Data Requested from Landfill operators

Landfill: Sigma-Aldrich Ireland LimitedPlease enter summary data on the

quantities of methane flared and / or

utilised

additional_pollutant_no T (Total) kg/Year M/C/E Method Code

Designation or

Description

Facility Total Capacity

m3 per hour

Total estimated methane generation (as per

site model) 0.0 N/A

Methane flared 0.0 0.0 (Total Flaring Capacity)

Methane utilised in engine/s 0.0 0.0 (Total Utilising Capacity)

Net methane emission (as reported in Section

A above) 0.0 N/A

POLLUTANT METHOD

Method Used

For the purposes of the National Inventory on Greenhouse Gases, landfill operators are requested to provide summary data on landfill gas (Methane)

flared or utilised on their facilities to accompany the figures for total methane generated. Operators should only report their Net methane (CH4) emission

to the environment under T(total) KG/yr for Section A: Sector specific PRTR pollutants above. Please complete the table below:

Method Used

Method Used

RELEASES TO AIR

POLLUTANT METHOD

Method Used

POLLUTANT

RELEASES TO AIR

RELEASES TO AIR

METHOD

4.2 RELEASES TO WATERS Link to previous years emissions data | PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 | 3/6/2011 11:06

8 15 23 23 31 41 6 6 6 6 6 6 40

SECTION A : SECTOR SPECIFIC PRTR POLLUTANTS Data on ambient monitoring of storm/surface water or groundwater, conducted as part of your licence requirements, should NOT be submitted under AER / PRTR Reporting as this only concerns Releases from your facility


QUANTITY

W1


0.0 0.0 0.0 0.0

79 Chlorides (as Cl) M

EN ISO

15682:2001 77088.0 77088.0 0.0 0.0

76 Total organic carbon (TOC) (as total C or COD/3) M EN 1484:1997 As COD /3 8465.0 8465.0 0.0 0.0

71 Phenols (as total C) M

ISO 18857-

1:2005 0.0 0.0 0.0 0.0

73 Toluene M ALT 0.0 0.0 0.0 0.0

12 Total nitrogen M EN 12260:2003 2008.0 2008.0 0.0 0.0

13 Total phosphorus M

EN ISO 15681-

1 to 2:2004 45.0 45.0 0.0 0.0

78 Xylenes M ALT 0.0 0.0 0.0 0.0


SECTION B : REMAINING PRTR POLLUTANTS


QUANTITY


0.0 0.0 0.0 0.0


SECTION C : REMAINING POLLUTANT EMISSIONS (as required in your Licence)


QUANTITY

W1


0.0 0.0 0.0 0.0

238 Ammonia (as N) M OTH 635.0 635.0 0.0 0.0

303 BOD M OTH 3800.0 3800.0 0.0 0.0

306 COD M OTH 25396.0 25396.0 0.0 0.0

320 Magnesium M ALT 0.0 0.0 0.0 0.0

327 Nitrate (as N) M OTH 14.0 14.0 0.0 0.0

332 Ortho-phosphate (as PO4) M OTH 45.33 45.33 0.0 0.0

240 Suspended Solids M OTH 9791.0 9791.0 0.0 0.0

363 Total Dissolved Solids M ALT 214690.0 214690.0 0.0 0.0

351 Total Organic Carbon (as C) M EN 1484:1997 On line meter 9742.0 9742.0 0.0 0.0

0.0 0.0 0.0 0.0


RELEASES TO WATERS

RELEASES TO WATERS

Method Used

POLLUTANT

Method Used

POLLUTANT

POLLUTANT

RELEASES TO WATERS

Method Used

4.3 RELEASES TO WASTEWATER OR SEWER Link to previous years emissions data | PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 |3/6/2011 11:06

8 8 16 16 6 6 6 6

SECTION A : PRTR POLLUTANTS


QUANTITY


0.0 0.0 0.0 0.0


SECTION B : REMAINING POLLUTANT EMISSIONS (as required in your Licence)


QUANTITY


0.0 0.0 0.0 0.0


OFFSITE TRANSFER OF POLLUTANTS DESTINED FOR WASTE-WATER TREATMENT OR SEWER

OFFSITE TRANSFER OF POLLUTANTS DESTINED FOR WASTE-WATER TREATMENT OR SEWER

Method Used

Method Used

POLLUTANT METHOD

POLLUTANT METHOD

4.4 RELEASES TO LAND Link to previous years emissions data | PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 | 3/6/2011 11:06

8 8 16 16 6 6 6 6

SECTION A : PRTR POLLUTANTS


QUANTITY

No. Annex II Name M/C/E Method Code Designation or Description Emission Point 1 T (Total) KG/Year A (Accidental) KG/Year

0.0 0.0 0.0


SECTION B : REMAINING POLLUTANT EMISSIONS (as required in your Licence)


QUANTITY

Pollutant No. Name M/C/E Method Code Designation or Description Emission Point 1 T (Total) KG/Year A (Accidental) KG/Year

0.0 0.0 0.0


POLLUTANT METHOD

Method Used

RELEASES TO LAND

RELEASES TO LAND

POLLUTANT METHOD

Method Used

5. ONSITE TREATMENT & OFFSITE TRANSFERS OF WASTE | PRTR# : P0089 | Facility Name : Sigma-Aldrich Ireland Limited | Filename : P0089_2010.xls | Return Year : 2010 | 3/6/2011 11:06

5 31 Please enter all quantities on this sheet in Tonnes 21

Quantity

(Tonnes per

Year)

Haz Waste : Name and

Licence/Permit No of Next

Destination Facility Non

Haz Waste: Name and

Licence/Permit No of

Recover/Disposer

Haz Waste : Address of Next

Destination Facility

Non Haz Waste: Address of

Recover/Disposer

Name and License / Permit No. and

Address of Final Recoverer /

Disposer (HAZARDOUS WASTE

ONLY)

Actual Address of Final Destination

i.e. Final Recovery / Disposal Site

(HAZARDOUS WASTE ONLY)

Transfer Destination

European Waste

Code Hazardous Quantity T/Year Description of Waste

Waste

Treatment

Operation M/C/E Method Used

Location of

Treatment Name and Licence / Permit No. of Recoverer / Disposer / Broker Address of Recoverer / Disposer / Broker Name and Address of Final Destination i.e. Final Recovery / Disposal Site (HAZARDOUS WASTE ONLY) Licence / Permit No. of Final Destination i.e. Final Recovery / Disposal Site (HAZARDOUS WASTE ONLY)

Within the Country 20 01 21 Yes 0.507

fluorescent tubes and other mercury-

containing waste R4 M Weighed Offsite in Ireland

Irish Lamp Recycling,COR-

KE-08-0004-01

Jim CuddyIrish Lamp

Recycling Co. Ltd.

Woodstock Industrial Estate

,.,Kilkenny Road ,Athy,Co

Kildare

Irish Lamp Recycling,COR-

KE-08-0004-01,Jim

CuddyIrish Lamp Recycling

Co. Ltd.



Kildare

Jim CuddyIrish Lamp

Recycling Co. Ltd.



Kildare

To Other Countries 07 05 13 Yes 15.826

solid wastes containing dangerous

substances D10 M Weighed Abroad

AVR Safeway Corrin

Fermoy . Co. Cork,W0050-

02

406-309 Sava

Sonderfallvervbrennungsanl

age,.,Osterweute 1 ,25541

Brunsbuttel ,Germany

Sava,08HR003009,

Sonderabfall

Verbrennungsanlagen

GmbH ,1,Osterweute 1

25541 Brunsbuttel

,.,Germany

Sonderabfall

Verbrennungsanlagen


25541 Brunsbuttel

,.,Germany

To Other Countries 07 05 12 No 0.0

sludges from on-site effluent treatment

other than those mentioned in 07 05 11 M Weighed Abroad

Shanks Vlaanderen nv

Divisie Roeselare

Regenbeekstraat 7C B-

8800 Roeselare BE

Belgium,88-1/11.905

Shanks Vlaanderen nv

Divisie Roeselare

Regenbeekstraat 7C B-

8800 Roeselare BE

Belgium,.,.,.,Belgium


packaging containing residues of or

contaminated by dangerous substances D10 M Weighed Abroad

AVR Safeway Corrin


02

406-309 Sava




Sava,08HR003009,

Sonderabfall

Verbrennungsanlagen


25541 Brunsbuttel

,.,Germany

Sonderabfall

Verbrennungsanlagen


25541 Brunsbuttel

,.,Germany

To Other Countries 07 05 01 Yes 85.18 aqueous washing liquids and mother liquors D10 M Weighed Abroad

AVR Safeway Corrin


02

406-309 Sava




Sava,08HR003009,

Sonderabfall

Verbrennungsanlagen


25541 Brunsbuttel

,.,Germany

Sonderabfall

Verbrennungsanlagen


25541 Brunsbuttel

,.,Germany

Within the Country 15 01 02 No 1.28 plastic packaging R4 M Weighed Offsite in Ireland

Rilta Environmental

ltd,W0192-3

Block 402 grants

drive,Greenogue business

park,Rathcoole,Co.

Dublin,Ireland


other organic solvents, washing liquids and

mother liquors R2 M Weighed Abroad

Redmondis Medison

GmbH,120397172

Niederlassung

,Braunschweig

Grotrian,Steinweig Str 3

D38112,DED38112

Braunschweig,Netherlands

Redmondis Medison

GmbH,120397172,Niederlas

sung ,Braunschweig


D38112,DED38112


Niederlassung

,Braunschweig


D38112,DED38112




mother liquors R2 M Weighed Offsite in Ireland Soltec Ireland Ltd,WO115-1

Zone A Business

Park,.,Mullingar,Co

Westmeath,Ireland

Soltec Ireland Ltd,W0115-

1,Zone A Business

Park,Mullingar,Co

Westmeath,.,Ireland

Zone A Business

Park,Mullingar,Co

Westmeath,.,Ireland



mother liquors R1 M Weighed Abroad

Solrec SRM Ltd,LAN

/494011/CB

Middleton Road

,Morecambe,Lancashire

,LA33JW,United Kingdom

Solrec SRM Ltd,LAN

/494011/CB,Middleton Road

,Morecambe

,Lancashire,LA3 3JW,United

Kingdom

Middleton Road ,Morecambe

,Lancashire,LA3 3JW,United

Kingdom

Method Used

Within the Country 20 03 04 No 76.94 septic tank sludge R3 M Weighed Offsite in Ireland

Horizon Environmnetal

Ltd,WCP/ww/117/03A

Collinstown business

Park,Old airport

Road,Cloghran,Co.

Dublin,Ireland

Within the Country 20 01 40 No 117.3 metals R4 M Weighed Onsite in Ireland

Leon Recycling Ltd,WFP-

WW-09-0006-02

Croghan Indistrial

estate,Emoclew

road,Arklow,Co.

Wicklow,Ireland

Within the Country 20 01 40 No 23.386 metals R4 M Weighed Offsite in Ireland

Rilta Environmental

ltd,W0192-3

Block 402 grants


park,Rathcoole,Co.

Dublin,Ireland

Within the Country 15 01 04 No 172.128 metallic packaging R4 M Weighed Offsite in Ireland Soltec Ireland Ltd,WO115-1

Zone A Business

Park,.,Mullingar,Co

Westmeath,Ireland

Within the Country 15 01 04 No 12.0 metallic packaging R4 M Weighed Offsite in Ireland

A1 Metal recycling Tommy

WardsAcragar Mountmellick

Co. Laois,WCP/WW/44/03A

ATFWMP007D

Acragar Mountmellick Co.

Laois,1,Mountmellick,Co

Laois,Ireland

Within the Country 20 03 07 No 5.28 bulky waste D1 M Weighed Offsite in Ireland

Greenstar Recycling Ltd,W-

0053-2

Fassaroe,Bray,Co.

Wicklow,.,Ireland

Within the Country 20 03 07 No 0.45 bulky waste D1 M Weighed Offsite in Ireland

Advanced Environmental

Solutions (Ireland)

Limited,WCP-04-08-601-

0004-01/ W0229-01/ W0201-

03/ W0104-01

Cappincur Tullamore

County

Offaly,.,Tullamore,Co.

Offaly,Ireland

Within the Country 15 01 06 No 1.98 mixed packaging R5 M Weighed Offsite in Ireland


Solutions (Ireland)


0004-01/ W0229-01/ W0201-

03/ W0104-01

Cappincur Tullamore

County


Offaly,Ireland



0053-2

Fassaroe,Bray,Co.

Wicklow,.,Ireland

Within the Country 15 01 01 No 2.1 paper and cardboard packaging R5 M Weighed Offsite in Ireland


0053-2

Fassaroe,Bray,Co.

Wicklow,.,Ireland



Solutions (Ireland)


0004-01/ W0229-01/ W0201-

03/ W0104-01

Cappincur Tullamore

County


Offaly,Ireland



0053-2

Fassaroe,Bray,Co.

Wicklow,.,Ireland

Within the Country 19 12 07 No 7.2 wood other than that mentioned in 19 12 06 R3 M Weighed Offsite in Ireland

Leon Recycling Ltd,WFP-

WW-09-0006-02

Croghan Indistrial

estate,Emoclew

road,Arklow,Co.

Wicklow,Ireland


soil and stones containing dangerous

substances R12 M Weighed Offsite in Ireland

Rilta Environmental

ltd,W0192-3

Block 402 grants


park,Rathcoole,Co.

Dublin,Ireland

* Select a row by double-clicking the Description of Waste then click the delete button

Link to previous years waste data

Link to previous years waste summary data & percentage change

Sigma-Aldrich Global CitizenshipEnvironmental Protection, Health and Safety PolicySigma-Aldrich is meeting society’s needs for products and services with progressively less negative impact on the world where we live and work.

Environmental SustainabilityOur initiatives promote greater environmental responsibility and support energy conservation, natural resource conservation, material reuse, reduction, and recycling, and the application of green chemistry into still more of our processing operations worldwide. We look forward to evaluating opportunities to partner with our customers in these important areas, and we encourage our suppliers to continually improve their supply operations in support of a healthier and cleaner environment.

Sigma-Aldrich maintains the following simple and clear goals for our operations:

• Meet and exceed where possible, applicable governmental environmental protection, health and safety requirements. • Design and operate facilities in a manner that reduces or eliminates risk to the environment, human health and safety. • Consistently evaluate the reduction, reuse, and recycling of materials across our business wherever possible. • Maintain and continually improve environmental, health and safety performance to protect and promote the health and safety of our employees and visitors. • Minimize the amount of spent material generated that is released to the air, water or land. • Assure emergency preparedness by employing risk reduction and loss prevention to avoid explosion and accidental chemical releases. • Support the underlying principles of the U.N. Global Compact for Sustainability.

To make these a reality, we use the following key EHS functional activities: • Operational responsibility and accountability for EHS performance. • EHS program training and record keeping to help assure employee understanding and compliance. • Process improvements that are protective of the environment. • EHS metrics that reveal past performance to help identify a successful path forward.

Who We AreSigma-Aldrich plays a critical role in advancing life science and high technology research and manufacturing globally. Our products and kits are used in scientific and genomic research, biotechnology, and pharmaceutical development and the diagnosis of disease, and as key component in pharmaceutical and other high technology manufacturing.

As we continue to partner with our employees, customers, and shareholders to support life-changing organizations in our local communities, we truly believe that together we can make a difference.

Steven G. WaltonVice President EHS, Quality and Compliance

Sigma Aldrich Ireland Limited\49342242 Sigma GW Mon & Response to EPA\CKRP0001/EO/EO

[Click here and insert Photo (if required)]

Sigma Aldrich Ireland Ltd.

Groundwater Monitoring and Response to EPA

25 November 2010 Draft

Issue No 1 49342242 / CKRP0001

Sigma Aldrich Ireland Ltd.Groundwater Monitoring and Response to EPA

Sigma Aldrich Ireland Limited\49342242 Sigma GW Mon & Response to EPA\CKRP0001/EO/EO 25 November 2010

DraftCKRP0001

Project Title: Sigma Aldrich Ireland Ltd.

Report Title: Groundwater Monitoring and Response to EPA

Project No: 49342242

Report Ref: CKRP0001

Status: Draft

Client Contact Name: Dora Forde/Chris Hughes

Client Company Name: Sigma Aldrich Ireland Ltd.

Issued By: URS Ireland Acorn Business Campus Mahon Industrial Park Blackrock Cork Ireland Tel: +353 (0) 21 453 61 36/37 Fax: +353 (0) 21 435 06 66 (shared) Fax: +353 2 1452 0484

Document Production / Approval Record

Issue No: 1

Name Signature Date Position

Prepared by

Edel O'Hannelly Senior Hydrogeologist

Checked by

Kevin Forde Technical Director

Approved by

Kevin Forde Technical Director

Document Revision Record

Issue No Date Details of Revisions

1 25 November 2010 Original issue



Page iDraft

CKRP0001

CONTENTS

Section Page No

1. INTRODUCTION.............................................................................................................. 1

1.1 Background ...................................................................................................................... 11.2 Aims and Objectives ........................................................................................................ 21.3 Scope of works................................................................................................................. 2

2. FIELD METHOD .............................................................................................................. 3

2.1 Water Level Dip Round .................................................................................................... 32.2 Well Purging ..................................................................................................................... 42.3 Measurement of Water Quality Parameters..................................................................... 42.4 Collection of Water Samples............................................................................................ 5

3. RESULTS......................................................................................................................... 7

3.1 Field Results..................................................................................................................... 73.2 Laboratory Results ........................................................................................................... 9

4. DISCUSSION................................................................................................................. 13

4.1 General Monitoring Requests ........................................................................................ 134.2 Specific Monitoring Requests......................................................................................... 14

5. CONCLUSIONS AND RECOMMENDATIONS ............................................................. 17

6. LIMITATIONS ................................................................................................................ 18

7. COPYRIGHT.................................................................................................................. 18

FIGURES

TABLES

APPENDIX A - HISTORICAL TRENDS

APPENDIX B - LABORATORY DOCUMENTS



Page 1Draft

CKRP0001

1. INTRODUCTION

URS Ireland Ltd. (URS) are pleased to present this report detailing groundwater monitoring at the Sigma Aldrich Ireland Ltd. (SAIL) site in Arklow, Co. Wicklow. The project work has been completed in accordance with URS proposal reference 3085543, dated 01 September 2010, and authorised by Ms. D. Forde, Health, Safety and Environmental Manager of the SAIL site, under purchase order number 019943.

1.1 Background

On 19 August 2010, SAIL received correspondence from the Environmental Protection Agency (EPA) (letter reference P0089-04 \rf02bc.docx) requesting additional information following their review of several SAIL reports.

The EPA’s general requests with regard to groundwater monitoring at the site were:

• Well depths are to be measured and reported for each monitoring round and compared against installed depths.

• Depth to groundwater measurements should be recorded at all monitoring well locations and used to draw a groundwater contour map for each monitoring round. The groundwater contour map is to be included in monitoring reports.

• Details of sampling methodology, including well purging, sample storage, preservation and shipment to the laboratory should be recorded and reported.

• Field measurements of pH, temperature, electrical conductivity, redox potential and dissolved oxygen to be recorded using a flow-through cell and calibrated water quality meter. Details of measurements should be provided in monitoring reports.

Specific EPA requests with regard to assessment of groundwater quality at the site were:

• One-off monitoring of groundwater from wells BH15S/D and BH18S/D for chlorinated solvent concentrations to assist with an assessment of whether chlorinated solvents detected at BH2 are localised or more extensive.

• Identification of the source of solvents detected in surface water.

• An assessment of whether wells BH9 and BH10 are located down-gradient of BH8 or if wells BH12 and BH13 would be more suitable down-gradient monitoring points.

• An estimate of time for the degradation of key solvents below relevant thresholds.

• An assessment of the potential for groundwater contamination from identified breaches in the on-site drainage system.



Page 2Draft

CKRP0001

1.2 Aims and Objectives

The aims of groundwater monitoring completed were to address the concerns raised by the EPA, as summarised above, and complete the site’s second biannual groundwater monitoring round for 2010 as required under the terms of the site’s Integrated Pollution Prevention and Control (IPPC) licence, licence number P0089-004, Schedule C6.

1.3 Scope of works

To address the above aims the following scope of works was completed:

• Completion of a groundwater monitoring round;

• Data assessment and reporting.

Details of field method are provided in Section 2 with a summary of field and laboratory results in Section 3. Discussion of results and items raised by the EPA in their letter of 19 August 2010 is presented in Section 4. Historical results are presented in Appendix A with laboratory documentation in Appendix B.



Page 3Draft

CKRP0001

2. FIELD METHOD

All site works were conducted in accordance with a project specific health and safety plan. URS operates a comprehensive health and safety management system that has been accredited to OHSAS 18001:2007. As part of this system we have procedures to ensure the health and safety of our employees and others who may be affected by our operations. All field staff on this project were supplied with appropriate personal protective equipment and received extensive safety training which includes the provision of training in accordance with the OSHA ‘Hazardous Waste Operations and Emergency Response Standard’ (HAZWOPER) as per OSHA Standard 1910.

The SAIL site has an extensive groundwater monitoring network that consists of the following wells:

• BH1 and BH2, which predate 2000. It is understood that well BH2 has in the past been pumped for water supply purposes on site.

• BH3 to BH8, which were installed in 2000.

• BH9 and BH10, which were installed in 2003.

• BH11 to BH18S/D, which were installed in 2006. It is understood that drilling location BH17 was not installed as a permanent monitoring well.

A site layout plan with monitoring well locations is presented in Figure 1.

A range of different field tasks were completed:

• Water level dip round of all accessible wells;

• Purging of wells selected for groundwater monitoring;

• Measurement of water quality parameters from selected wells and surface water samples;

• Collection of groundwater and surface water samples.

Details of the different field tasks completed are provided in the following sections.

2.1 Water Level Dip Round

An interface probe, which is capable of distinguishing between water and non-aqueous liquids, was used to measure the depth to groundwater in each accessible monitoring well. The interface probe was lowered to the base of each well to measure the total depth.

Depth to groundwater measurements, combined with top of well casing elevations, were used to calculate the groundwater elevation at each well. Calculated groundwater elevations were later used to allow a groundwater contour map for the site to be drawn and the direction of groundwater flow across the site to be determined.



Page 4Draft

CKRP0001

Total depth measurements were compared against installed depths (where known) to check for siltation at the base of wells.

The combination of depth to groundwater and total well depth measurements allowed the volume of groundwater in wells to be calculated.

2.2 Well Purging

In accordance with the site’s IPPC licence, wells BH1 to BH10 and BH14 are required to be sampled biannually. In addition, the EPA requested that four additional wells (BH15S/D and BH18S/D) be sampled on a one-off basis to assess the extent of chlorinated solvent impact identified at BH2.

These fifteen wells were sampled according to strict URS groundwater sampling protocol (based on USEPA and BSI methods). Wells were purged of between three and five well volumes before samples were collected. Wells BH1 and BH2 are equipped with electric pumps which were used to purge the wells. All other wells sampled were purged with dedicated inertial-lift sampling equipment. Wells BH3 to BH10 and BH14 were already equipped with this equipment and new sampling equipment was installed into wells BH15S/D and BH18S/D.

During purging, URS field staff wore single use disposable latex/nitrile gloves to reduce the risk of cross-contamination between wells.

2.3 Measurement of Water Quality Parameters

Field measurements of unstable water quality parameters were recorded using a calibrated water quality meter. Measurements were taken during purging and stable readings recorded of:

• pH;

• Temperature;

• Electrical conductivity;

• Redox potential; and

• Dissolved oxygen.

Where possible, readings were taken from a flow-through cell attached to inertial-lift tubing. Use of a flow-through cell is preferable for obtaining reliable readings of dissolved oxygen and redox potential as it prevents air becoming entrained in the sample during measurement which can give rise to erroneous readings. As wells BH1 and BH2 were purged using electric pumps, it was not possible to use a flow-through cell, water quality measurements for these two wells were taken from an over-flowing bucket.

Where possible, water quality measurements at surface water monitoring points were taken directly from flowing water. However, at surface water sampling location SW1, the



Page 5Draft

CKRP0001

water in the drainage ditch was stagnant and water quality readings were taken from a beaker of standing water.

2.4 Collection of Water Samples

During sampling URS field staff wore single use disposable latex/nitrile gloves to reduce the risk of cross-contamination between sampling events. Samples were collected directly into laboratory supplied sample containers. Where necessary, samples were filtered on receipt by the laboratory. Samples for microbiological determination were collected into sterile containers and shipped to the laboratory on the day of collection due to their short holding time.

Samples were labelled in the field and details entered onto a chain of custody form. On site and during transit the samples were stored in chilled cool boxes. Chain of custody documentation accompanied the samples during transit to the laboratory. Copies of laboratory documentation are presented in Appendix B.

To maintain consistency with results of previous monitoring rounds, samples were analysed by Bord na Mona, Co. Kildare.

Samples from wells BH1-BH10 and BH14 were scheduled for analysis of the following suite of parameters:

• Volatile organic compounds (VOCs);

• Water soluble solvents (including acetone);

• Total petroleum hydrocarbons (diesel and petrol range organics, mineral oil and BTEX compounds);

• Polycyclic aromatic hydrocarbons (PAHs);

• Selected metals;

• Major ions;

• Chemical oxygen demand (COD);

• Total alkalinity;

• Total coliforms and E. coli.

Samples from wells BH15S/D and BH18S/D were scheduled for analysis of a reduced suite of parameters:

• Volatile organic compounds;

• Redox indicators (dissolved iron and manganese, nitrate and sulphate).

Grab samples of surface water were collected as per previous biannual monitoring rounds. Two samples were collected from the surface water drainage ditch (SW1 and



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SW2, up-stream and down-stream, respectively) and two were collected from the Avoca River (SW3 and SW4, up-stream and down-stream, respectively). Surface water samples were scheduled for analysis of the same suite of parameters as monitoring wells BH1-BH10 and BH14.



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3. RESULTS

Field results are presented in Tables 1 to 3, with a sample inventory in Table 4 and laboratory results in Tables 5 to 11.

3.1 Field Results

It was not possible to take field measurements for wells BH12 and BH13 as they could not be located. These two wells were installed in a heavily overgrown area between the site and the Avoca River to the east. A walkover survey of the area on 29 September 2010 was conducted, but the wells could not be located.

3.1.1 Well Depths

A summary of well elevations and depths is presented in Table 1. Details of drilled depths, installation depths and screened intervals are also provided where the information is available (geological and well installation logs are not available for wells BH1 and BH2).

As can be seen in Table 1, many wells were installed at shallower depths than the total drilled depth of the borehole. Also, for several wells, a sump was placed below the screen section that allows groundwater in-flow. A sump allows for collection of dense non-aqueous phase liquids if present. For example, well BH6 was drilled to 5.5 m below ground level (bgl), but the total depth of the well installed was shallower at 5.25 m bgl. The screen section is from 2.0 m bgl to 5.0 m bgl, so that there is a 0.25 m sump in the base of the well.

Measurements of well depths on 29 September 2010 indicate that several wells have silted up over time. Taking well BH6 as an example again, the total depth measured in September 2010 was 3.33 m bgl, giving approximately 1.92 m of silt in the base of the well. The silt has filled up the sump and a portion of the screen section. The presence of silt in the base of a monitoring well does not prevent it from continuing as a monitoring point.

3.1.2 Groundwater Elevations

Depth to groundwater measurements from 29 September 2010 and calculated groundwater elevations are presented in Table 2. When wells BH11 to BH18S/D were installed in 2006 ground elevations at many wells were surveyed relative to an arbitrary site datum. However, wells BH9, BH10, BH12 and BH13 were not surveyed in 2006. Therefore, it was not possible to calculate groundwater elevations for wells BH9 and BH10 on 29 September 2010.

Groundwater elevations for 29 September 2010 are presented in Figure 2 for shallow monitoring wells. Contours indicate that groundwater flow across the site is to the east toward the Avoca River. Based on this groundwater flow direction it appears that wells BH12 and BH13 are located directly down-gradient of well BH8. However, as wells BH12



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and BH13 could not be located during the site visit it was not possible to confirm groundwater elevations at these wells.

3.1.3 Purge Volumes

Well and purge volumes are also provided in Table 2. No wells purged dry during sampling indicating that the aquifer is reasonably productive in the vicinity of each well.

A minimum of three well volumes was purged from each well prior to sampling.

3.1.4 Water Quality Parameters

Stable readings of water quality parameters were recorded and are presented in Table 3.

Groundwater pH was close to neutral, generally ranging from 6.02 to 7.75. A lower pH was recorded for groundwater from well BH6, 4.78, which is particularly low and below the normal range for Irish groundwater of 6.0 to 9.0. Surface water pH readings fell within a narrower range of 6.05 to 6.71, which is slightly below neutral but within the normal range.

Electrical conductivity readings for groundwater and surface water samples were within

the same range, from 221 μS/cm to 668 μS/cm. These readings indicate a low dissolved solid content.

Groundwater temperature was above the normal temperature range for Irish groundwater which is between 10 oC and 12 oC. Groundwater temperature readings were between 12.1 oC and 17.8 oC. The higher temperature readings tended to be recorded for shallower wells where buffering of ambient temperature variations is less than at depth. Surface water temperature readings were between 11.2 oC and 13.8 oC.

Dissolved oxygen readings in groundwater ranged between 0.41 mg/L and 5.94 mg/L. At the observed temperatures fully aerated groundwater would be expected to have dissolved oxygen readings close to 10.00 mg/L. These lower values indicate that groundwater is low in dissolved oxygen. Surface water samples had a greater range in dissolved oxygen readings from 2.74 mg/L to 9.63 mg/L.

Redox potential readings in groundwater were also low, ranging from -84 mV to 120 mV. Readings below 100 mV indicate reducing conditions which would be expected given the dissolved oxygen values. Similarly, redox potential readings of the surface water samples were higher, ranging from 98 mV to 147 mV, consistent with the higher dissolved oxygen readings.

3.1.5 Field Observations

No floating or sinking non-aqueous phase layer was detected in any of the monitoring wells dipped. No hydrocarbon sheen was noted on any of the water samples. Most water samples appeared clear and colourless.

A slight solvent odour was noted for groundwater from three wells only (BH7, BH8 and BH14). A hydrogen sulphide odour was noted at wells BH14 and BH15S, which is



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consistent with reducing groundwater conditions as indicated by low dissolved oxygen (<3.00 mg/L) and low to negative redox potential readings at these two wells.

3.2 Laboratory Results

An inventory of samples collected and analyses scheduled is presented in Table 4. Laboratory results are presented in Tables 5 to 11.

Assessment of analytical data was completed by comparing laboratory results with the following published guidelines:

• Dutch Intervention Values (DIVs);

• EPA Draft Interim Guideline Values (IGVs); and

• Groundwater Threshold Values, Statutory Instrument No. 9, 2010 (GTVs).

The DIVs represent levels above which there may be a risk to human receptors and above which more detailed site-specific risk assessment may be required. They have no regulatory basis in Ireland and are used as an indicator of significant concentrations of groundwater contaminants. Where DIVs are not defined but the Dutch standards list an indicative level for serious contamination, this has been used instead.

The draft IGVs represent negligible groundwater contamination and were developed using a number of existing water quality guidelines in use in Ireland, including existing national environmental quality standards, proposed common indicators for the new groundwater directive, drinking water standards and Geological Survey of Ireland trigger values.

GTVs were published in January 2010. Exceedence of a threshold value triggers further investigation to confirm whether the criteria for poor groundwater chemical status are being met.

None of the above three sets of guidelines apply to results for surface water samples. Analytical results for surface water samples have been screened against the Environmental Quality Standards (EQSs) for Inland Surface Waters, from Statutory Instrument No. 272, 2009. These standards have been primarily adopted from European Union Directives, relating to the aquatic environment.

3.2.1 Volatile Organic Compounds

Results for VOCs, including water soluble solvents, are presented in Table 5. Historic results for selected VOCs are presented in Appendix A.

No water soluble solvents were detected above reporting limits (500 μg/L) in any of the water samples.

No VOCs were detected above reporting limits (10 μg/L) in groundwater samples from wells BH1 to BH4, BH9, BH10, BH15S/D and BH18S/D or the four surface water samples.



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Traces of chlorobenzene at, or marginally above, the reporting limit were detected in groundwater from wells BH5 and BH14, while traces of m&p-xylene at, or marginally above, the reporting limit were detected in groundwater from wells BH6 and BH8.

Although at trace levels, these detections exceed their respective draft IGVs (1 μg/L for

chlorobenzene and 10 μg/L for m,p-xylene).

A higher concentration of chlorobenzene was detected in groundwater from well BH7,

35 μg/L. Chlorobenzene is consistently detected in groundwater from BH7 and for the

last four monitoring rounds concentrations have ranged between 18 μg/L and 42 μg/L. Historical monitoring data are presented in Appendix A with concentration trends graphed for selected wells and compounds, see Figure A7 for concentration trends in well BH7.

o-Xylene was detected in groundwater from BH8 at a concentration of 45 μg/L. Total xylene is consistently detected in groundwater from BH8. Concentrations fluctuate from

one round to the next, although they are declining from a peak of 10,800 μg/L in October

2006. The September 2010 total xylene concentration of 55 μg/L is the lowest recorded for well BH8 since November 2003, see Appendix A Figure A8.2.

3.2.2 Total Hydrocarbons

Total hydrocarbon results are presented in Table 6.

No hydrocarbons were detected above reporting limits in four groundwater samples (BH1, BH3, BH9 and BH10) and three surface water samples (SW1, SW3 and SW4).

Concentrations of diesel range organics ranged from 191 μg/L (BH4) to 2,190 μg/L (BH8). However, mineral oil was below detection in all water samples indicating that the organics detected are not related to fuel hydrocarbons.

Compared to earlier rounds for which diesel range hydrocarbon results are available (from May 2009), hydrocarbon concentrations have declined significantly in groundwater from wells BH3 and BH7. In May 2009, diesel range hydrocarbons were detected in

groundwater from BH3 at a concentration of 10,700 μg/L, but have been below reporting limits for the past two monitoring rounds, see Appendix A. In groundwater from BH7,

concentrations have declined from 12,100 μg/L in May 2009 to 1,374 μg/L in September 2010.

However, for wells BH5 and BH8 diesel hydrocarbon concentrations have been

increasing. In BH5 concentrations have increased from 194 μg/L in May 2009 to

2,085 μg/L in September 2010 and in BH8 concentrations have increased from 324 μg/L

to 2,190 μg/L over the same period.

Gasoline organics ranged from 135 μg/L (BH14) to 1,840 μg/L (BH7). In wells BH4, BH7 and BH14 the gasoline detections appear to be predominantly due to the presence of methyl tert butyl ether (MTBE). Groundwater from wells BH4 and BH7 were also sampled in May 2010 and MTBE concentrations in both wells have declined compared to the previous round. MTBE does not appear to have been included in the Bord na Mona



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analytical suite prior to May 2010, therefore it is difficult to determine long term concentration trends.

MTBE detections exceed the draft IGV of 30 μg/L. This low threshold is set largely in consideration for its organoleptic properties (odour and taste), rather than any toxic effects to environmental or human health receptors.

For BH8, the gasoline range detections appeared to be predominantly due to total

xylenes. However, the xylene concentration of 1,130 μg/L is considerably more than that

reported by the VOC scan, 55 μg/L.

3.2.3 Polycyclic Aromatic Hydrocarbons

PAH results are presented in Table 7.

The majority of PAH results were either below reporting limits or at trace levels. Relevant guideline thresholds were marginally exceeded in groundwater from wells BH5, BH7 and BH14 only.

In groundwater from BH5, benzo(a)pyrene was detected at 0.0785 μg/L, compared to its

DIV of 0.05 μg/L and draft IGV of 0.01 μg/L. Indeno(123cd)pyrene exceeded its DIV and

draft IGV of 0.05 μg/L in groundwater from well BH7, while benzo(a)anthracene exceeded

its DIV of 0.5 μg/L in groundwater from well BH14.

3.2.4 Metals

Selected metal results are presented in Table 8.

Particularly elevated metal results were reported for groundwater from well BH5, with concentrations of calcium, iron and manganese reported well outside normal concentration ranges. In particular, the very elevated iron and manganese results are inconsistent with the moderately reducing groundwater conditions (redox potential of 39 mV and dissolved oxygen of 3.42 mg/L).

The contract laboratory were requested to re-analyse the sample and got results within 20% of the original, therefore, the laboratory stands by the original results. However, as can be seen in Appendix A, the results are well above those reported previously for well BH5 and above those reported for other samples during this round. Therefore, results for well BH5 are not considered representative.

For all other water samples results were generally within normal concentration ranges.

Reported concentrations of calcium, magnesium and sodium were below relevant guideline values.

Iron and manganese concentrations in groundwater samples were generally above their respective draft IGV thresholds. This is consistent with field observations of widespread reducing groundwater conditions, which allow iron and manganese to enter into solution.



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3.2.5 Major Ions

Major ion results are presented in Table 9 with historic results in Appendix A.

Results are within previously reported concentration ranges. Ammonia and chloride concentrations in groundwater exceed their respective draft IGV thresholds, consistent with results of previous monitoring rounds. Ammonia concentrations in surface water samples also exceed the EQS and indicate poor quality background surface water conditions in the area (largely related to historical mining activity in the Avoca River catchment).

Nitrate concentrations in groundwater are all less than 0.65 mg/L as N, which is low for groundwater in a rural setting but is consistent with the widespread reducing groundwater conditions evident from field measurements. Similarly, the presence of elevated ammonia concentrations is also consistent with the presence of widespread reducing groundwater conditions.

Total alkalinity and COD results for both groundwater and surface water were within previously reported concentration ranges.

3.2.6 Microbiological Results

Microbiological results are presented in Table 11.

E. coli. were generally below reporting limits in groundwater samples, with total coliform colony counts ranging from below reporting limits up to 240 cfu/100 mL. E. coli. indicate sewage contamination whereas total coliform colony counts need not necessarily indicate sewage contamination but are associated with normal microbial fauna in the subsurface.

In surface water samples total coliforms and E. coli. were detected in all samples.

Results in both surface and groundwater were within previous reported ranges.

3.2.7 Redox Indicators

In accordance with the EPA’s request one-off samples from wells BH15S/D and BH18S/D were sampled for redox indicators and results are presented in Table 11.

Results indicate that groundwater conditions in wells BH15S/D and BH18S/D are reducing, as dissolved iron and manganese are detected and nitrate concentrations are either low (all <0.3 mg/L as N) or below reporting limits.



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4. DISCUSSION

Results of monitoring conducted in September 2010 are discussed in light of issues raised by the EPA in the latter of 19 August 2010.

4.1 General Monitoring Requests

The EPA’s general requests (in italics below) with regard to groundwater monitoring at the site were:

• Well depths to be measured and reported for each monitoring round and compared against installed depths.

− The total depths of all accessible monitoring wells were measured and are presented in Table 2 and discussed in section 3.1.1. Several wells appear to have silted-up to a greater or lesser extent since their installation. Where present, the siltation does not currently prevent wells from being sampled.

• Depth to groundwater measurements should be recorded at all monitoring well locations and used to draw a groundwater contour map for each monitoring round. The groundwater contour map is to be included in monitoring reports.

− Depth to groundwater measurements were recorded for all accessible monitoring wells. Measurements and corresponding elevations, where these can be calculated, are presented in Table 2 and discussed in section 3.1.2. A groundwater contour is presented as Figure 2 and indicates that the direction of groundwater flow across the site is to the east toward the Avoca River.

• Details of sampling methodology, including well purging, sample storage, preservation and shipment to the laboratory should be recorded and reported.

− Details of sampling methods are provided in section 2 with laboratory documentation in Appendix B.

• Field measurements of pH, temperature, electrical conductivity, redox potential and dissolved oxygen to be recorded using a flow-through cell and calibrated water quality meter. Details of measurements should be provided in monitoring reports.

− Field measurements were recorded using a calibrated water quality meter and a flow-through cell where possible. Field measurements are presented in Table 3 and discussed in section 3.1.4.



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4.2 Specific Monitoring Requests

Specific EPA requests with regard to assessment of groundwater quality at the site are discussed in detail below.

4.2.1 Halomethanes in BH2

The EPA requested one-off monitoring of groundwater from wells BH15S/D and BH18S/D for chlorinated solvent concentrations to assist with an assessment of whether chlorinated solvents detected at BH2 are localised or more extensive.

Historical VOC results for groundwater from BH2 are presented in Appendix A and are dominated by halomethanes (chloroform, bromodichloromethane and

dibromochloromethane). Concentrations peaked in October 2006 (up to 226 μg/L total

halomethanes) and in September 2009 concentrations were between 20 and 40 μg/L.

All VOCs were below reporting limits in groundwater from BH2 during 2010. Analysis of samples from BH15S/D and BH18S/D in September 2010 confirm that no VOCs are detected above reporting limits from these four wells.

The EPA also requested that an assessment be undertaken of whether groundwater conditions at well BH2 are conducive to reductive dechlorination. Field measurements of dissolved oxygen from well BH2, BH15S/D and BH18S/D are lower than would be expected for fully aerated groundwater (generally <5 mg/L) and redox potential readings were low (<120 mV). In addition, dissolved iron and manganese are detected in groundwater from all five wells. All of these factors indicate reducing groundwater conditions that would be conducive to reductive dechloriantion. However, given the absence of chloromethanes, or any other VOCs, in groundwater from BH2 or the nearby wells in 2010 the redox state of groundwater is no longer relevant.

4.2.2 Source(s) of Solvents in Surface Water

No VOCs were detected in surface water samples during 2010, therefore, data do not indicate that there are current on-site sources of solvent contamination to surface water.

4.2.3 Groundwater Flow Direction from BH8

The EPA requested an assessment of whether wells BH9 and BH10 are located down-gradient of BH8 or if wells BH12 and BH13 would be more suitable down-gradient monitoring points.

Depth to groundwater measurements were recorded for all accessible wells on site. It was not possible to locate wells BH12 and BH13 due to growth of heavy scrub vegetation in these off-site locations since 2006 and, while it was possible to access wells BH9 and BH10, these wells have not been levelled relative to the site datum. However, it is clear that the direction of groundwater flow across the operational site area is to the east toward the Avoca River. This indicates that wells BH12 and BH13 would be more directly down-gradient of BH8 than wells BH9 and BH10, if they can be located and made accessible.



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4.2.4 Concentration Trends

The EPA requested that an estimate of time for the degradation of key solvents below relevant thresholds be undertaken.

Concentration trends for key VOCs are tabulated and presented graphically in Appendix A. For the majority of wells, no VOCs were detected in 2010 and those detections which were reported by the laboratory are discussed below.

Chlorobenzene was detected in groundwater from well BH5. Chlorobenzene was regularly detected in groundwater from BH5 between 2001 and 2006 but was below reporting limits for that last seven monitoring rounds until September 2010. The

September 2010 detection of 12 μg/L is marginally above the reporting limit of 10 μg/L and is not considered significant. Chlorobenzene was not detected in September 2010 in wells BH1 and BH8 located across gradient from BH5, to the northwest and southeast, respectively.

p&m-Xylene was detected in groundwater from well BH6 in September 2010 at a

concentration of 11 μg/L, which is marginally above the reporting limit of 10 μg/L. p&m-Xylene had not been detected above reporting limits for the previous five monitoring rounds. Again, the trace detection in September 2010 is not considered significant. p&m-Xylene was not detected in September 2010 in wells BH1, BH5 and BH11 located in close proximity to BH6.

Chlorobenzene was also detected in groundwater from well BH7 in September 2010. Chlorobenzene is frequently detected in groundwater from BH7 and, as illustrated in Appendix A Figure A7, the concentration trend is not increasing but has remained

relatively stable over the past four monitoring rounds between 15 μg/L and 45 μg/L. Chlorobenzene was not detected in September 2010 in wells BH4 and BH8 located downgradient (northeast) from BH7.

p&m-Xylene and o-xylene continue to be detected in groundwater from well BH8.

Concentrations have declined from a combined peak of 10,800 μg/L in October 2006 to

55 μg/L in September 2010. No xylenes were detected in September 2010 in wells BH4 and BH5 located across gradient from BH8, to the southeast and northwest, respectively. An assessment of the rate of xylene concentration decline against time in BH8 is presented in Appendix A Figure A12. Based on the rate of concentration decline observed to date it is estimated that the total xylene concentration in well BH8 will decline

to the draft IGV of 10 μg/L in approximately three years.

Chlorobenzene was detected in groundwater from well BH14 at the reporting limit of

10 μg/L. This trace detection is not considered significant. Chlorobenzene was not detected in September 2010 in well BH4 located downgradient (northeast) from BH14.



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4.2.5 Breaches in On-Site Drainage System

A CCTV drainage survey was undertaken in July 2009. Several minor defects were noted in the survey and URS understand from Sigma Aldrich that all have since been repaired. The locations of the defects, as listed below, are illustrated in Figure 3.

a) On the storm water line from SMH23 to SMH8 a displaced joint was noted at 6.6 m from SMH23. Monitoring well BH3 is located immediately down-gradient of this defect and no adverse impact on groundwater quality from BH3 is apparent

b) From SMH10.1 to SMH19 a step in the storm water line was noted at 24 m from SMH10.1. It is unclear from the report if this step is due to how the line was constructed or if it is due to displacement. Monitoring wells BH2 and BH15S/D are located near to this step in the drainage line. No adverse impact on groundwater quality from these wells is apparent.

c) At 0.6 m from SMH6 to SMH8 the survey of the storm water line was abandoned due to a break in the line. This break is immediately up-gradient of monitoring well BH7, no adverse impact on groundwater quality from BH7 is apparent.

d) At 13.3 m along the storm water line from SMH6 to SMH3 a displaced joint was noted. This is very close to defect c) above, and again no adverse impact is apparent from well BH7.

e) At 3.2 m, 5.2 m, 24.3 m and 24.7 m along the process water line from PMH3 to PMH1 defects were noted. Well BH8 is located down-gradient and VOC concentrations have been following a declining trend in this well.

f) From PMH4 to PMH3, surface damage wear was noted in the process water line at 9.6 m from PMH4. This is up-gradient of wells BH7 and BH8.

g) Several points of deformation were noted along the storm water line from SMH7 to SMH4. This is again up-gradient of monitoring wells BH7 and BH8.

h) At 2.0 m along the foul water line from FMH4.1 to FMH4 infiltration into the line was noted. This is located up-gradient of monitoring wells BH7 and BH8. Total and faecal coliforms are generally below reporting limits in groundwater from BH8 and total coliforms are occasionally detected in groundwater from BH7. Therefore, the potential for leakage from this point in the foul water system does not appear to have adversely impacted groundwater quality.

No other defects were noted in the drainage line survey.



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5. CONCLUSIONS AND RECOMMENDATIONS

The general and specific requests of the EPA with regard to groundwater monitoring of the site have been addressed in the September 2010 monitoring round.

No VOCs were detected in surface water samples or in the majority of groundwater samples. Where detected in groundwater, VOC concentrations are either at trace levels or continue a declining trend.

Field measurements of water quality parameters, metals and major ion results indicate that groundwater across the site is generally reducing.

Where detected, hydrocarbon results indicate declining trends in those wells with the highest concentrations and relatively low level increases in others.

Detections of MTBE have declined compared to May 2010 results, however it is not possible to determine longer term trends due to the lack of earlier analytical data. It is recommended that MTBE be included as part of the hydrocarbon suite in future monitoring.



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6. LIMITATIONS

URS Ireland Limited (URS) has prepared this Report for the sole use of Sigma Aldrich Ireland Ltd. in accordance with the Agreement under which our services were performed. No other warranty, expressed or implied, is made as to the professional advice included in this Report or any other services provided by us. This Report may not be relied upon by any other party without the prior and express written agreement of URS. Unless otherwise stated in this Report, the assessments made assume that the sites and facilities will continue to be used for their current purpose without significant change. The conclusions and recommendations contained in this Report are based upon information provided by others and upon the assumption that all relevant information has been provided by those parties from whom it has been requested. Information obtained from third parties has not been independently verified by URS, unless otherwise stated in the Report.

Where field investigations have been carried out, these have been restricted to a level of detail required to achieve the stated objectives of the services. The results of any measurements taken may vary spatially or with time and further confirmatory measurements should be made after any significant delay in using this Report.

7. COPYRIGHT

© This Report is the copyright of URS Ireland Limited. Any unauthorised reproduction or usage by any person other than the addressee is strictly prohibited.



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9

7.1

4

7.8

07

.87

7.7

0

6.4

9 7.8

2

7.9

7

6.8

9

INFE

RR

ED

GR

OU

ND

WA

TER

FLO

W D

IRE

CTI

ON

GR

OU

ND

WA

TER

CO

NTO

UR

RE

LATI

VE

WA

TER

LE

VE

L (m

AS

D -

met

res

AB

OV

E A

RB

ITA

RY

SIT

E D

ATU

M)

6.8

9

BH 1

4 BH 1

7

BH 1

2

BH 1

3



DraftCKRP0001

Tables

Tab

le 1

- W

ell I

nst

alla

tio

n D

etai

lsR

ou

nd

2 2

010,

Sig

ma

Ald

rich

, Ark

low

ER

M D

epth

to

G

rou

nd

wat

er

2006

*

ER

M

Gro

un

dw

ater

E

leva

tio

n

2006

*

Cal

cula

ted

G

rou

nd

E

leva

tio

n

Hei

gh

t D

iffe

ren

ce**

To

p o

f S

tan

dp

ipe

Ele

vati

on

Dri

lled

D

epth

Inst

alle

d

Dep

th

To

tal D

epth

Sep

tem

ber

20

10

Th

ickn

ess

of

Silt

in B

ase

of

Wel

l

m b

glm

A E

RM

SD

mA

ER

M S

Dm

mA

ER

M S

Dm

bgl

m b

glm

bgl

mA

ER

M S

Dm

bgl

mB

H1

4.80

4.23

89.

038

-0.2

028.

836

~~

~~

Bed

rock

***

~10

0~

BH

2~

~~

0.08

98.

364

~~

~~

Bed

rock

***

>75

~B

H3

1.55

8.25

29.

802

-0.0

349.

768

10.5

7.00

1.75

to 4

.25

8.05

2 to

5.5

52G

rave

l7.

254

~B

H4

1.28

6.31

57.

595

0.05

77.

652

11.0

7.00

1.75

to 4

.05.

845

to 3

.595

Mad

e gr

ound

and

cla

y7.

233

~B

H5

1.45

7.15

98.

609

-0.0

428.

567

14.5

4.25

1.75

to 3

.75

6.85

9 to

4.8

59G

rave

l4.

142

0.10

8B

H6

1.20

7.66

68.

866

-0.0

358.

831

5.5

5.25

2.0

to 5

.06.

866

to 3

.866

Gra

vel a

nd c

lay

3.33

31.

917

BH

70.

708.

052

8.75

2-0

.114

8.63

85.

55.

001.

9 to

4.9

6.85

2 to

3.8

52C

lay

4.84

40.

156

BH

81.

226.

568

7.78

80.

139

7.92

75.

55.

001.

5 to

4.5

6.28

8 to

3.2

88C

lay

and

grav

el5.

121

~B

H9

2.63

~~

0.22

0~

10.0

8.50

5.5

to 8

.5~

Gra

vel

8.36

00.

140

BH

103.

82~

~0.

130

~14

.314

.25

10.5

to 1

4.25

~G

rave

l11

.588

2.66

2B

H11

1.57

8.13

49.

704

-0.0

549.

650

5.4

4.85

1.0

to 4

.85

8.70

4 to

4.8

54S

and

4.81

40.

036

BH

121.

85~

~~

~8.

27.

001.

0 to

7.0

~C

lay

and

grav

el~

~B

H13

1.09

~~

~~

10.0

4.50

1.0

to 4

.5~

Cla

y, s

and

and

grav

el~

~B

H14

0.62

8.18

58.

805

-0.0

508.

755

10.0

3.93

1.0

to 3

.93

7.80

5 to

4.8

75M

ade

grou

nd a

nd s

and

3.98

5~

BH

15S

1.03

7.24

88.

278

-0.0

308.

248

10.0

4.43

1.0

to 4

.43

7.27

8 to

3.8

48G

rave

l and

cla

y4.

480

~B

H15

D9.

68-1

.402

8.27

8-0

.085

8.19

310

.09.

936.

0 to

9.9

32.

278

to -

1.65

2C

lay

9.90

00.

030

BH

161.

517.

932

9.44

2-0

.052

9.39

010

.04.

481.

0 to

4.4

88.

442

to 4

.962

Cla

y, s

and

and

grav

el4.

334

0.14

6B

H18

S0.

806.

811

7.61

10.

030

7.64

111

.14.

500.

75 to

3.6

56.

861

to 3

.961

Gra

vel

3.63

50.

865

BH

18D

5.12

2.72

17.

841

0.07

07.

911

11.1

11.1

07.

0 to

11.

10.

841

to -

3.25

9C

lay

and

grav

el10

.900

0.20

0

m b

gl -

met

res

belo

w g

roun

d le

vel

mA

ER

M S

D -

met

res

abov

e E

RM

site

dat

um~

- n

ot r

ecor

ded

* -

as m

easu

red

in A

pril

2006

** -

heig

ht d

iffer

ence

bet

wee

n to

p of

sta

ndpi

pe a

nd g

roun

d le

vel a

s m

easu

red

in S

epte

mbe

r 20

10**

* -

bore

hole

logs

are

not

ava

ilabl

e, h

owev

er, g

iven

the

dept

h of

the

wel

ls it

is c

onsi

dere

d lik

ely

that

they

are

scr

eene

d w

ithin

bed

rock

Mo

nit

ori

ng

W

ell

Scr

een

Inte

rval

Scr

een

ed U

nit

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 2

- G

rou

nd

wat

er E

leva

tio

ns

and

Pu

rge

Vo

lum

esR

ou

nd

2 2

010,

Sig

ma

Ald

rich

, Ark

low

Dep

th t

o

Gro

un

dw

ater

20

10

Gro

un

dw

ater

E

leva

tio

n

2010

Wel

l D

iam

eter

To

tal D

epth

Wel

l V

olu

me

Pu

rged

V

olu

me

m b

glm

A E

RM

SD

mA

ER

M S

Dm

mA

ER

M S

Dm

bts

mA

ER

M S

Dm

mm

bts

LL

BH

14.

804.

238

9.03

8-0

.202

8.83

63.

470

5.36

615

2**

*13

9742

00B

H2

~~

~0.

089

8.36

43.

146

5.21

825

4**

*38

9613

020

BH

31.

558.

252

9.80

2-0

.034

9.76

81.

794

7.97

450

7.22

010

.740

BH

41.

286.

315

7.59

50.

057

7.65

20.

850

6.80

250

7.29

012

.740

BH

51.

457.

159

8.60

9-0

.042

8.56

71.

355

7.21

250

4.10

05.

3918

BH

61.

207.

666

8.86

6-0

.035

8.83

11.

240

7.59

150

3.29

84.

0415

BH

70.

708.

052

8.75

2-0

.114

8.63

80.

823

7.81

550

4.73

07.

6727

BH

81.

226.

568

7.78

80.

139

7.92

71.

435

6.49

250

5.26

07.

5126

BH

92.

63~

~0.

220

~3.

250

~50

8.58

010

.530

BH

103.

82~

~0.

130

~4.

005

~50

11.7

1815

.250

BH

111.

578.

134

9.70

4-0

.054

9.65

01.

955

7.69

550

4.76

05.

51na

BH

121.

85~

~~

~~

~~

~~

naB

H13

1.09

~~

~~

~~

~~

~na

BH

140.

628.

185

8.80

5-0

.050

8.75

50.

959

7.79

650

3.93

55.

8520

BH

15S

1.03

7.24

88.

278

-0.0

308.

248

1.10

57.

143

504.

450

6.57

20B

H15

D9.

68-1

.402

8.27

8-0

.085

8.19

31.

856

6.33

750

9.81

515

.650

BH

161.

517.

932

9.44

2-0

.052

9.39

01.

520

7.87

050

4.28

25.

43na

BH

18S

0.80

6.81

17.

611

0.03

07.

641

0.75

46.

887

503.

665

5.72

20B

H18

D5.

122.

721

7.84

10.

070

7.91

15.

425

2.48

650

10.9

7010

.935

m b

gl -

met

res

belo

w g

roun

d le

vel

mA

ER

M S

D -

met

res

abov

e E

RM

site

dat

umm

bts

-m

etre

s be

low

top

of s

tand

pipe

~ -

not

rec

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d*

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mea

sure

d in

Apr

il 20

06**

- h

eigh

t diff

eren

ce b

etw

een

top

of s

tand

pipe

and

gro

und

leve

l as

mea

sure

d in

Sep

tem

ber

2010

***

- to

tal d

epth

und

erst

ood

to b

e 80

m, o

r m

ore

na -

not

app

licab

le

29 S

epte

mb

er 2

010

Mo

nit

ori

ng

W

ell

ER

MD

epth

to

G

rou

nd

wat

er

2006

*

ER

M

Gro

un

dw

ater

E

leva

tio

n 2

006*

Cal

cula

ted

G

rou

nd

E

leva

tio

n

Hei

gh

t D

iffe

ren

ce**

To

p o

f S

tan

dp

ipe

Ele

vati

on

UR

S Ir

elan

d L

tdJ:

\Cor

k-Jo

bs\S

igm

a A

ldric

h Ir

elan

d Li

mite

d\49

3422

42 S

igm

a G

W M

on &

Res

pons

e to

EP

A\T

echn

ical

\Rep

ort A

ttach

men

ts\R

ound

2 2

010

Tab

les.

xls

Tab

le 3

- F

ield

Wat

er O

bse

rvat

ion

s an

d Q

ual

ity

Mea

sure

men

ts -

29

and

30

Sep

tem

ber

201

0R

ou

nd

2 2

010,

Sig

ma

Ald

rich

, Ark

low

Dis

solv

ed

Oxy

gen

Red

ox

Po

ten

tial

Ele

ctri

cal

Co

nd

uct

ivit

yT

emp

erat

ure

mg/

Lm

Vμ

S/c

mo C

BH

1*G

roun

dwat

er0.

416.

7531

442

14.1

Cle

ar w

ater

, no

evi

denc

e of

con

tam

inat

ion.

BH

2*G

roun

dwat

er0.

896.

3010

933

213

.0C

lear

wat

er,

no e

vide

nce

of c

onta

min

atio

n.B

H3

Gro

undw

ater

2.50

7.00

3054

517

.8C

lear

wat

er,

no e

vide

nce

of c

onta

min

atio

n.B

H4

Gro

undw

ater

4.83

7.11

1158

914

.6V

ery

clea

r w

ater

, no

evi

denc

e of

con

tam

inat

ion.

BH

5G

roun

dwat

er3.

426.

0239

462

15.6

Clo

udy,

gre

y w

ater

, no

evid

ence

of c

onta

mia

ntio

n.B

H6

Gro

undw

ater

3.82

4.78

-62

422

15.0

Cle

ar w

ater

, no

evi

denc

e of

con

tam

inat

ion.

BH

7G

roun

dwat

er4.

777.

02-8

464

515

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lear

wat

er, s

light

sol

vent

odo

ur.

BH

8G

roun

dwat

er4.

426.

78-4

151

214

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ery

clea

r w

ater

, sl

ight

sol

vent

odo

ur.

BH

9G

roun

dwat

er2.

166.

3110

349

412

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lear

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

BH

10G

roun

dwat

er3.

207.

2280

491

12.2

Cle

ar w

ater

, no

evid

ence

of c

onta

min

atio

n.B

H11

nana

nana

nana

Wel

l not

sam

pled

. B

H12

nana

nana

nana

Wel

l not

sam

pled

. B

H13

nana

nana

nana

Wel

l not

sam

pled

. B

H14

Gro

undw

ater

2.40

7.34

-44

668

15.0

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ater

with

a h

ydro

gen

sulp

hide

/slig

ht s

olve

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dour

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H15

SG

roun

dwat

er2.

407.

053

515

15.1

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udy,

bro

wn

wat

er, h

ydro

gen

sulp

hide

odo

ur.

BH

15D

Gro

undw

ater

4.51

7.75

752

213

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loud

y, b

row

n w

ater

, no

evid

ence

of c

onta

min

atio

n.B

H16

nana

nana

nana

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l not

sam

pled

. B

H18

SG

roun

dwat

er5.

947.

0010

022

116

.1C

lear

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

BH

18D

Gro

undw

ater

2.60

7.00

120

336

14.1

Clo

udy,

bro

wn

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

SW

1**

Sur

face

wat

er4.

306.

7113

924

911

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ark,

turb

id w

ater

, no

evid

ence

of c

onta

min

atio

n.S

W2*

**S

urfa

ce w

ater

8.55

6.64

9855

713

.8C

lear

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

SW

3***

Sur

face

wat

er9.

636.

3314

738

811

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lear

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

SW

4***

Sur

face

wat

er2.

746.

0513

448

011

.2C

lear

wat

er, n

o ev

iden

ce o

f con

tam

inat

ion.

mg/

L -

mill

igra

ms

per

litre

mV

- m

illiv

olts

μS

/cm

- m

icro

Sie

men

s pe

r ce

ntim

etre

o C -

deg

rees

Cel

sius

na -

not

app

licab

le*

- fie

ld m

easu

rem

ents

take

n fr

om m

eter

in o

verf

low

ing

buck

et**

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eld

mea

sure

men

ts ta

ken

from

sta

ndin

g w

ater

in a

bea

ker

***

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ld m

easu

rem

ents

take

n di

rect

ly fr

om fl

owin

g w

ater

in c

hann

elA

ll ot

her

field

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sure

men

ts ta

ken

from

a fl

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gh c

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Sam

plin

g

Po

int

Ob

serv

atio

ns

pH

Sam

ple

Typ

e

UR

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igm

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on &

Res

pons

e to

EP

A\T

echn

ical

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ort A

ttach

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ts\R

ound

2 2

010

Tab

les.

xls

Tab

le 4

- S

amp

le In

ven

tory

, 29

& 3

0 S

epte

mb

er 2

010

Ro

un

d 2

201

0, S

igm

a A

ldri

ch, A

rklo

w

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

11B

H14

BH

15S

BH

15D

BH

16B

H18

SB

H18

DS

W1

SW

2S

W3

SW

429

-Sep

-10

30-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Vo

lati

le O

rgan

ic

Co

mp

ou

nd

sy

yy

yy

yy

yy

y~

yy

y~

yy

yy

yy

Wat

er S

olu

ble

V

ola

tile

sy

yy

yy

yy

yy

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yy

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yy

yy

yy

To

tal P

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ns

yy

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yy

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yy

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yy

y

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lycy

clic

A

rom

atic

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ydro

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on

sy

yy

yy

yy

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y~

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~~

~~

yy

yy

Met

als

yy

yy

yy

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y*y*

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y*y

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ajo

r Io

ns

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yy

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yy

y

Mic

rob

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gic

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ou

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yy

yy

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y~

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indi

cate

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mpl

e ta

ken

for

that

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lytic

al s

uite

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in

dica

tes

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ampl

es ta

ken

for

that

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lytic

al s

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indi

cate

s re

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d an

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ical

sui

te fo

r re

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indi

cato

r pa

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r th

e su

m o

f trih

alom

etha

nes

***

DIV

is fo

r th

e su

m o

f all

dich

loro

benz

enes

3 D

raft

IGV

is fo

r th

e su

m o

f tric

hlor

oben

zene

s--

-- in

dica

tes

no g

uide

line

valu

e de

fined

****

DIV

is fo

r th

e su

m o

f all

tric

hlor

oben

ezen

es4

Tw

o D

raft

IGV

s ar

e gi

ven

for

tric

hlor

oeth

ene

****

* D

IV is

for

the

sum

of a

ll xy

lene

s5

Dra

ft IG

V is

for

the

sum

of x

ylen

es

Su

rfac

e W

ater

Sam

ple

Gro

un

dw

ater

Sam

ple

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er (

Max

imum

Allo

wab

le C

once

ntra

tion)

, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

EQ

S(μ μμμ

g/L

)V

ola

tile

Org

anic

C

om

po

un

ds

GT

V(μ μμμ

g/L

)D

IV(μ μμμ

g/L

)IG

V(μ μμμ

g/L

)

UR

S Ir

elan

d L

tdJ:

\Cor

k-Jo

bs\S

igm

a A

ldric

h Ir

elan

d Li

mite

d\49

3422

42 S

igm

a G

W M

on &

Res

pons

e to

EP

A\T

echn

ical

\Rep

ort A

ttach

men

ts\R

ound

2 2

010

Tab

les.

xls

Tab

le 6

- T

ota

l Hyd

roca

rbo

n R

esu

lts

(μ μμμg

/L)

Ro

un

d 2

201

0, S

igm

a A

ldri

ch, A

rklo

w

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

14S

W1

SW

2S

W3

SW

429

-Sep

-10

30-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Die

sel R

ange

Org

anic

s--

----

----

--<

1026

3<

1019

120

8596

013

7421

90<

10<

1011

17<

1031

1<

10<

10M

iner

al O

il--

--60

0--

--<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10T

otal

Gas

olin

e R

ange

O

rgan

ics

(C5-

C12

)--

----

----

--<

50<

50<

5054

421

511

8018

4013

40<

50<

5013

5<

50<

50<

50<

50

Ben

zene

0.75

301

50<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7<

7T

olue

ne--

--10

0010

----

<4

<4

<4

<4

<4

<4

<4

4<

4<

4<

4<

4<

4<

4<

4E

thyl

Ben

zene

----

150

10--

--<

5<

5<

5<

5<

5<

5<

527

<5

<5

<5

<5

<5

<5

<5

Tot

al X

ylen

es--

--70

10--

--<

10<

10<

10<

10<

10<

10<

1011

30<

10<

10<

10<

10<

10<

10<

10M

TB

E--

--92

00*

30--

--<

3<

3<

335

2<

3<

314

3017

09

<3

114

<3

<3

<3

<3

No

tes:

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erG

TV

- G

roun

dwat

er T

hres

hold

Val

ue, S

tatu

tory

Inst

rum

men

t No.

9, 2

010

Indi

cate

s re

sult

abov

e D

IVB

old

Indi

cate

s re

sult

abov

e IG

VIta

lics

- in

dica

tes

resu

lt ab

ove

GT

V*

Indi

cativ

e le

vel f

or s

erio

us c

onta

min

atio

n--

-- in

dica

tes

no g

uide

line

valu

e de

fined

Indi

cate

s re

sult

abov

e E

QS

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er (

Max

imum

Allo

wab

le C

once

ntra

tion)

, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

10

EQ

S(μ μμμ

g/L

)

Gro

un

dw

ater

Sam

ple

Su

rfac

e W

ater

Sam

ple

To

tal P

etro

leu

m

Hyd

roca

rbo

ns

GT

V(μ μμμ

g/L

)D

IV(μ μμμ

g/L

)IG

V(μ μμμ

g/L

)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 7

- P

oly

cycl

ic A

rom

atic

Hyd

roca

rbo

n R

esu

lts

(μ μμμg

/L)

Ro

un

d 2

201

0, S

igm

a A

ldri

ch, A

rklo

w

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

14S

W1

SW

2S

W3

SW

429

-Sep

-10

30-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Nap

htha

lene

----

701

----

<0.

10.

241

<0.

10.

235

<0.

1<

0.1

<0.

1<

0.1

<0.

1<

0.1

<0.

1<

0.1

<0.

1<

0.1

<0.

1A

cena

phth

ylen

e--

----

----

----

--<

0.01

1<

0.01

1<

0.01

1<

0.01

10.

0282

0.01

13<

0.01

1<

0.01

1<

0.01

1<

0.01

1<

0.01

1<

0.01

1<

0.01

1<

0.01

1<

0.01

1A

cena

phth

ene

----

----

----

----

<0.

015

<0.

015

<0.

015

0.01

530.

0400

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

Flu

oren

e--

----

----

----

--<

0.01

4<

0.01

4<

0.01

40.

0162

0.04

55<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4<

0.01

4P

hena

nthr

ene

----

5--

----

--0.

0244

<0.

022

<0.

022

0.02

400.

1910

0.05

710.

0436

<0.

022

<0.

022

0.02

52<

0.02

2<

0.02

20.

0399

<0.

022

<0.

022

Ant

hrac

ene

----

510

000

0.4

<0.

015

<0.

015

<0.

015

<0.

015

0.20

100.

0845

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

Flu

oran

then

e--

--1

11

<0.

014

<0.

014

<0.

014

<0.

014

0.08

470.

0152

0.01

54<

0.01

4<

0.01

4<

0.01

40.

0632

0.02

11<

0.01

4<

0.01

4<

0.01

4P

yren

e--

----

----

----

--<

0.01

5<

0.01

5<

0.01

5<

0.01

50.

1660

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

<0.

015

0.06

20<

0.01

5<

0.01

5<

0.01

5B

enzo

(a)a

nthr

acen

e--

--0.

5--

----

--<

0.01

7<

0.01

7<

0.01

7<

0.01

70.

0210

<0.

017

0.05

43<

0.01

7<

0.01

7<

0.01

72.

30.

0219

<0.

017

<0.

017

<0.

017

Chr

ysen

e--

--0.

2--

----

--<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

3<

0.01

30.

0288

<0.

013

<0.

013

<0.

013

Ben

zo(b

)flo

uran

then

e--

----

--0.

5--

--<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3<

0.02

3B

enzo

(k)f

lour

anth

ene

----

0.05

0.05

----

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

<0.

027

Ben

zo(a

)pyr

ene

----

0.05

0.01

0.1

<0.

009

<0.

009

<0.

009

<0.

009

0.07

85<

0.00

9<

0.00

9<

0.00

9<

0.00

9<

0.00

9<

0.00

90.

0132

<0.

009

<0.

009

<0.

009

Inde

no(1

23cd

)pyr

ene

----

0.05

0.05

----

<0.

014

<0.

014

<0.

014

<0.

014

0.03

78<

0.01

40.

0553

<0.

014

<0.

014

<0.

014

<0.

014

<0.

014

<0.

014

<0.

014

<0.

014

Dib

enzo

(ah)

antr

acen

e--

----

----

----

--<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6<

0.01

6B

enzo

(ghi

)per

ylen

e--

--0.

050.

05--

--<

0.01

6<

0.01

6<

0.01

6<

0.01

60.

0427

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

<0.

016

Tot

al F

our

PA

Hs

0.07

5 *

----

0.1

*--

---

--

-0.

0805

-0.

0553

--

--

--

--

Tot

al 1

6 P

AH

s--

----

----

----

--<

0.1

0.24

8<

0.1

0.29

00.

936

0.16

50.

166

<0.

1<

0.1

<0.

12.

370.

150

<0.

1<

0.1

<0.

1

No

tes:

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erG

TV

- G

roun

dwat

er T

hres

hold

Val

ue, S

tatu

tory

Inst

rum

men

t No.

9, 2

010

Indi

cate

s re

sult

abov

e D

IVB

old

Indi

cate

s re

sult

abov

e IG

VIta

lics

- in

dica

tes

resu

lt ab

ove

GT

V*

GT

V is

for

the

sum

of P

AH

com

poun

ds s

peci

fied

in Ir

ish

and

EU

Drin

king

Wat

er L

imit:

(be

nzo(

b)flu

oran

then

e, b

enzo

(k)f

luor

anth

ene,

ben

zo(g

hi)p

eryl

ene

& in

deno

(1,2

,3-c

d)py

rene

----

indi

cate

s no

gui

delin

e va

lue

defin

edIn

dica

tes

resu

lt ab

ove

EQ

S

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er (

Max

imum

Allo

wab

le C

once

ntra

tion)

, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

EQ

S(μ μμμ

g/L

)

Gro

un

dw

ater

Sam

ple

Su

rfac

e W

ater

Sam

ple

Po

lycy

clic

Aro

mat

ic

Hyd

roca

rbo

ns

GT

V(μ μμμ

g/L

)D

IV(μ μμμ

g/L

)IG

V(μ μμμ

g/L

)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 8

- M

etal

Res

ults

(m

g/L

)R

oun

d 2

201

0, S

igm

a A

ldri

ch, A

rklo

w

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

14S

W1

SW

2S

W3

SW

429

-Sep

-10

30-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Cal

cium

----

----

200

----

3540

5637

685

3234

4135

6443

8834

4.9

4.6

Iron

----

----

0.2

----

7.4

1.5

0.10

9.1

143

7.5

9.8

6.7

0.50

<0.

11.

47.

11.

00.

200.

20P

otas

sium

----

----

5--

--3.

21.

80.

703.

86.

23.

69.

42.

21.

31.

22.

97.

32.

60.

70.

8M

agne

sium

----

----

50--

--8.

818

139.

332

1316

1314

1416

1211

2.0

2.0

Man

gane

se--

----

--0.

05--

--6.

71.

19.

09.

163

4.1

1.9

2.4

0.92

0.78

3.2

270.

5261

68S

odiu

m15

0--

--15

0--

--29

1926

6424

2568

3750

4181

2859

5.3

5.9

No

tes:

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erG

TV

- G

roun

dwat

er T

hres

hold

Val

ue, S

tatu

tory

Inst

rum

men

t No.

9, 2

010

Bo

ld In

dica

tes

resu

lt ab

ove

IGV

Italic

s -

indi

cate

s re

sult

abov

e G

TV

----

indi

cate

s no

gui

delin

e va

lue

defin

ed

EQ

S(m

g/L

)

Gro

und

wat

er S

amp

leS

urfa

ce W

ater

Sam

ple

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er (

Max

imum

Allo

wab

le C

once

ntra

tion)

, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

Met

als

GT

V(m

g/L

)D

IV(m

g/L

)IG

V(m

g/L

)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 9

- M

ajo

r Io

n a

nd

Ch

emic

al O

xyg

en D

eman

d R

esu

lts

(mg

/L)

Ro

un

d 2

201

0, S

igm

a A

ldri

ch, A

rklo

w

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

14S

W1

SW

2S

W3

SW

429

-Sep

-10

30-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Am

mon

ia a

s N

0.06

5 -

0.17

5 *

----

0.11

7 1

0.06

50.

050.

070.

100.

340.

840.

540.

900.

560.

920.

091.

340.

280.

170.

140.

17

Chl

orid

e24

- 1

87.5

----

30--

--44

3580

9657

6979

4173

6711

438

100

8.0

9.2

Flu

orid

e--

----

--1

0.5

<0.

10.

180.

130.

13<

0.1

<0.

10.

180.

16<

0.1

0.10

0.20

<0.

10.

12<

0.1

<0.

1P

hosp

hate

as

P0.

035

**--

--0.

03 2

0.03

5 A

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16N

itrat

e as

N8.

471

***

----

5.65

3--

--<

0.05

<0.

05<

0.05

<0.

050.

050.

63<

0.05

0.05

<0.

050.

20<

0.05

0.10

1.9

1.0

1.0

Nitr

ite a

s N

0.11

4 **

**--

--0.

03 4

----

<0.

02<

0.02

<0.

02<

0.02

<0.

02<

0.02

<0.

02<

0.02

<0.

02<

0.02

<0.

02<

0.02

<0.

02<

0.02

<0.

02S

ulph

ate

187.

5--

--20

0--

--17

8.9

31<

0.5

2633

2.0

1326

2218

2125

1011

Tot

al A

lkal

inity

----

----

nac

----

136

162

164

189

149

103

220

195

147

211

207

154

97<

50<

50C

hem

ical

Oxy

gen

Dem

and

----

----

----

----

2113

1634

2521

5325

2017

3329

2125

24

No

tes:

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erG

TV

- G

roun

dwat

er T

hres

hold

Val

ue, S

tatu

tory

Inst

rum

men

t No.

9, 2

010

Bo

ld In

dica

tes

resu

lt ab

ove

IGV

Italic

s -

indi

cate

s re

sult

abov

e G

TV

nac

- no

abn

orm

al c

hang

e--

-- in

dica

tes

no g

uide

line

valu

e de

fined

1 -

IGV

giv

en a

s 0.

15 m

g/L

as N

H4,

equ

ival

ent t

o 0.

117

mg/

L as

NA

- m

olyb

date

rea

ctiv

e ph

osph

orou

s

* G

TV

giv

en a

s am

mon

ium

(N

H4)

as

N2

- IG

V g

iven

as

orth

opho

spha

teIn

dica

tes

resu

lt ab

ove

EQ

S

** G

TV

giv

en a

s 0.

035

mg/

L m

olyb

date

rea

ctiv

e ph

osph

orou

s3

- IG

V g

iven

as

25 m

g/L

nitr

ate

as N

O3,

equ

ival

ent t

o 5.

65 a

s N

***

GT

V g

iven

as

37.5

mg/

L ni

trat

e as

NO

3, e

quiv

alen

t to

8.47

1 m

g/L

as N

4 -

IGV

giv

en a

s 0.

1 m

g/L

nitr

ite a

s N

O2,

equ

ival

ent o

t 0.0

3 m

g/L

as N

****

GT

V g

iven

as

0.37

5 m

g/L

nitr

ite a

s N

O2,

equ

ival

ent t

o 0.

114

mg/

L as

N

EQ

S(m

g/L

)

Gro

un

dw

ater

Sam

ple

Su

rfac

e W

ater

Sam

ple

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

Mea

n va

lues

for

river

wat

er b

ody

of G

ood

Sta

tus

Maj

or

Ion

s an

d

Ch

emic

al O

xyg

en

Dem

and

GT

V(m

g/L

)D

IV(m

g/L

)IG

V(m

g/L

)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 1

0 -

Mic

rob

iolo

gic

al R

esu

lts

(cfu

/100

mL

)R

ou

nd

2 2

010,

Sig

ma

Ald

rich

, Ark

low

BH

1B

H2

BH

3B

H4

BH

5B

H6

BH

7B

H8

BH

9B

H10

BH

14S

W1

SW

2S

W3

SW

430

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

30-S

ep-1

030

-Sep

-10

Tot

al C

olifo

rms

----

----

0--

--0

110

00

240

10

05

120

011

0014

0015

031

0E

. Col

i.--

----

--0*

----

00

00

00

00

10

014

083

9377

No

tes:

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erG

TV

- G

roun

dwat

er T

hres

hold

Val

ue, S

tatu

tory

Inst

rum

men

t No.

9, 2

010

Bo

ld In

dica

tes

resu

lt ab

ove

IGV

----

indi

cate

s no

gui

delin

e va

lue

defin

ed*

give

n as

faec

al c

olifo

rms

EQ

S(c

fu/1

00 m

L)

Gro

un

dw

ater

Sam

ple

Su

rfac

e W

ater

Sam

ple

EQ

S -

Env

ironm

enta

l Qua

lity

Sta

ndar

d fo

r F

resh

wat

er (

Max

imum

Allo

wab

le C

once

ntra

tion)

, S

tatu

tory

Inst

rum

men

t No.

272

, 200

9.

Mic

rob

iolo

gic

al

Co

lon

y C

ou

nts

GT

V(c

fu/1

00 m

L)

DIV

(cfu

/100

mL

)IG

V(c

fu/1

00 m

L)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s

Tab

le 1

1 -

Red

ox

Ind

icat

ors

(m

g/L

)R

ou

nd

2 2

010,

Sig

ma

Ald

rich

, Ark

low

BH

15S

BH

15D

BH

18S

BH

18D

29-S

ep-1

029

-Sep

-10

29-S

ep-1

029

-Sep

-10

Iron

----

----

0.2

----

151.

90.

602.

9M

anga

nese

----

----

0.05

----

2.9

0.86

0.49

0.79

Nitr

ate

as N

8.47

1 *

----

5.65

***

----

<0.

05<

0.05

0.29

0.09

Nitr

ite a

s N

0.11

4 **

----

0.03

****

----

<0.

03<

0.03

<0.

03<

0.03

Sul

phat

e18

7.5

----

200

----

4133

3922

No

tes:

GT

V -

Gro

undw

ater

Thr

esho

ld V

alue

, Sta

tuto

ry In

stru

mm

ent N

o. 9

, 201

0Ita

lics

- in

dica

tes

resu

lt ab

ove

GT

V--

-- in

dica

tes

no g

uide

line

valu

e de

fined

* G

TV

giv

en a

s 37

.5 m

g/L

nitr

ate

as N

O3,

equ

ival

ent t

o 8.

471

mg/

L as

N

** G

TV

giv

en a

s 0.

375

mg/

L ni

trite

as

NO

2, e

quiv

alen

t to

0.11

4 m

g/L

as N

DIV

- D

utch

Inte

rven

tion

Val

ueIG

V -

EP

A d

raft

Inte

rim G

uide

line

Val

ue fo

r th

e pr

otec

tion

of g

roun

dwat

erB

old

Indi

cate

s re

sult

abov

e IG

V**

* IG

V g

iven

as

25 m

g/L

nitr

ate

as N

O3

EQ

S(m

g/L

)

Gro

un

dw

ater

Sam

ple

Met

als

GT

V(m

g/L

)D

IV(m

g/L

)IG

V(m

g/L

)

UR

S Ir

elan

d L

td.

J:\C

ork-

Jobs

\Sig

ma

Ald

rich

Irel

and

Lim

ited\

4934

2242

Sig

ma

GW

Mon

& R

espo

nse

to E

PA

\Tec

hnic

al\R

epor

t Atta

chm

ents

\Rou

nd 2

201

0 T

able

s.xl

s



DraftCKRP0001

Appendix A - Historical Trends

Ap

pen

dix

A:

Sel

ecte

d G

rou

nd

wat

er a

nd

Su

rfac

e W

ater

An

alyt

ical

Res

ult

sS

igm

a A

ldri

ch, A

rklo

w

Ap

r-01

Oct

-01

Ap

r-02

Oct

-02

May

-03

No

v-03

Ap

r-04

No

v-04

Ap

r-05

No

v-05

Ap

r-06

Oct

-06

May

-07

Oct

-07

May

-08

Oct

-08

May

-09

Sep

-09

May

-10

Sep

-10

Ben

zene

1<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10B

rom

odic

hlor

omet

hane

nc<

10<

10<

10<

10<

10<

10<

10<

10<

1030

<10

<10

Chl

orob

enze

ne1

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

Chl

orof

orm

12<

10<

10<

10<

10<

10<

10<

10<

10<

1040

<10

<10

1,2-

Dic

hlor

oeth

ane

332

2224

17<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10D

ibro

moc

hlor

omet

hane

nc<

10<

10<

10<

10<

10<

10<

10<

10<

1028

<10

<10

Eth

ylbe

nzen

e10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

Sty

rene

300

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

1,1,

1,2-

Tet

rach

loro

etha

n enc

<10

<10

<10

<10

<10

<10

Tol

uene

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10p/

m-

Xyl

ene

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

<10

o-X

ylen

e<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10<

10

Die

sel R

ange

Org

anic

s34

<10

<10

<10

Min

eral

Oil

<10

<10

<10

<10

Gas

olin

e R

ange

Org

anic

s<

10<

42<

50<

50M

TB

E30

<3

<3

Cal

cium

20

040

3232

3029

3739

4730

3526

3736

1034

599

4635

Iron

0.

21.

300.

700.

104.

40<

0.1

1.80

0.30

1.00

<1

<1

0.05

0.08

<0.

1<

0.1

2.00

7.40

Pot

assi

um5

3.6

3.7

3.4

2.8

3.2

3.2

2.5

3.7

2.5

4.6

3.0

3.0

3.0

1.3

4.0

3.8

0.9

5.5

3.2

Mag

nesi

um50

1413

1213

912

814

812

88

104

915

611

9M

anga

nese

0.05

119.

210

1011

8.8

7.7

6.2

5.7

6.3

0.02

4.3

8.2

<0.

002

5.43

6.73

Sod

ium

15

024

2021

1718

2126

2317

2012

1921

2219

4512

3129

Dis

solv

ed O

xyge

nm

g/L

nac

1.14

1.76

1.34

1.80

0.41

pH>

=6.

5 <

=9.

57.

006.

907.

207.

806.

606.

606.

706.

807.

407.

207.

308.

007.

207.

007.

507.

507.

407.

106.

75

Red

ox P

oten

tial

mV

nc12

031

Con

duct

ivity

μS

/cm

1000

438

454

435

396

349

405

400

415

413

419

385

467

399

402

378

551

205

503

442

Tem

pera

ture

o C25

12.4

13.5

13.8

14.0

5T

otal

Dis

solv

ed S

olid

s10

0020

7T

otal

Org

anic

Car

bon

nac

84T

otal

Sus

pend

ed S

olid

snc

30A

mm

onia

as

N *

0.12

1.80

1.80

1.90

0.50

2.00

1.24

1.05

1.38

1.32

1.26

1.03

0.97

1.02

0.86

0.90

2.04

<0.

020.

730.

05C

hlor

ide

3033

2028

2730

2021

2039

2521

3424

3721

8820

5944

Flu

orid

e1

0.20

0.10

<0.

10.

10<

0.1

0.10

<0.

10.

10<

0.1

<0.

10.

100.

12<

0.10

<0.

100.

120.

140.

19<

0.1

<0.

1P

hosp

hate

as

Pnc

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

160.

160.

50<

0.16

<0.

16<

0.16

<0.

16<

0.16

<0.

16N

itrat

e as

N *

*5.

60.

20<

0.04

<0.

04<

0.04

<0.

04<

0.04

<0.

04<

0.04

<0.

05<

0.05

<0.

050.

05<

0.20

<0.

05<

0.05

0.05

5.65

<0.

05<

0.05

Nitr

ite a

s N

***

0.03

<0.

03<

0.03

<0.

02<

0.02

0.03

<0.

10<

0.03

<0.

03<

0.02

<0.

02<

0.03

<0.

02S

ulph

ate

200

21.2

018

.20

36.8

04.

7032

.30

49.9

030

.70

19.7

020

.50

3.20

3.50

5.31

1.12

16.2

12.

329.

4723

.08

11.6

917

.20

Tot

al A

lkal

inity

nac

150

130

164

112

155

140

163

129

151

134

<50

135

136

Che

mic

al O

xyge

n D

eman

dnc

1917

<10

<10

22<

10<

10<

1019

<10

<10

<10

<10

10<

10<

10<

10<

1021

Tot

al C

olifo

rms

0<

118

5<

1<

1<

1<

1<

14

130

<

1<

1<

1<

1<

1<

1<

13

<1

Fae

cal C

olifo

rms

0<

1<

1<

1<

1<

1<

1<

1<

1<

1<

13

<1

<1

<1

<1

<1

<1

1<

1

nd: n

ot d

etec

ted

nc:

no c

rter

ion

defin

edna

c: n

o ab

norm

al c

hang

eμ

g/L:

mic

rogr

am p

er li

tre

mg/

L: m

illig

ram

per

litr

eμ

S/c

m:

mic

roS

iem

ens

per

litre

o C: d

egre

es C

elsi

usm

V:

mill

iVol

tscf

u: c

olon

y fo

rmin

g un

itsA

bla

nk c

ell i

ndic

ates

no

data

ava

ilabl

e.

μg/

L10

** T

he IG

V g

iven

for

nitr

ate

is 2

5 m

g/L,

this

eq

uate

s to

5.6

mg/

L as

nitr

ogen

.

* T

he IG

V g

iven

for

am

mon

ia is

0.1

5 m

g/L

as a

mm

oniu

m, t

his

equa

tes

to 0

.12

mg/

L as

ni

trog

en.

Dra

ft IG

VU

nit

Par

amet

er

μg/

L

Mic

rob

iolo

gic

al P

aram

eter

scf

u/10

0 m

L

10

mg/

L

Hyd

roca

rbo

ns

***

The

IGV

giv

en f

or n

itrite

is 0

.1 m

g/L,

this

eq

uate

s to

0.0

3 m

g/L

as n

itrog

en.

mg/

L

Oth

er P

aram

eter

s

Vo

lati

le O

rgan

ic C

om

po

un

ds

BH

1

Met

als

UR

S Ir

elan

d L

tdJ:

\Cor

k-Jo

bs\S

igm

a A

ldric

h Ir

elan

d Li

mite

d\49

3422

42 S

igm

a G

W M

on &

Res

pons

e to

EP

A\T

echn

ical

\Rep

ort A

ttach

men

ts\A

ppen

dix

A.x

ls

Ap

pen

dix

A:

Sel

ecte

d G

rou

nd

wat

er a

nd

Su

rfac

e W

ater

An

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L))/

0.00

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1 da

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3.2

yea

rs

Ref

eren

ce:

US

EP

A (

2002

), C

alcu

latio

n an

d U

se o

f Firs

t-O

rder

Rat

e C

onst

ants

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Mon

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d N

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al A

ttenu

atio

n S

tudi

es.

ww

w.e

pa.g

ov



DraftCKRP0001

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Sigma-Aldrich Ireland Limited

Closure, Restoration and Aftercare Management Plan

31 March 2011

Final

Issue No. 49340759/ DURP0002

Sigma-Aldrich Ireland Limited Closure, Restoration and Aftercare Management Plan

Project Title: Sigma-Aldrich Ireland Limited

Report Title: Closure, Restoration and Aftercare Management Plan

Project No: 49340759

Report Ref:

Status: Final

Client Contact Name: Dora Forde

Client Company Name: Sigma-Aldrich Ireland Limited

Issued By: URS Ireland Ltd

Document Production / Approval Record

Issue No: 3 Name Signature Date Position

Prepared by Eimear O’Reilly

11 March 2011

Environmental Scientist

Checked & Approved by

Peter Hassett

11 March 2011

Department Head, Transaction and Compliance Ireland

Document Revision Record

Issue No Date Details of Revisions

1 11 March 2011 Draft Issue

2 31 March 2011 Final Issue

3


DURP0002 Closure, Restoration and Aftercare Management Plan Report Rev. 1

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CONTENTS

Section Page No

LIMITATIONS................................................................................................................................ 3

COPYRIGHT ................................................................................................................................. 3

1. INTRODUCTION.............................................................................................................. 1

1.1. Requirement for a Closure, Restoration and Aftercare Management Plan ..................... 1

1.2. Basis for the CRAMP ....................................................................................................... 2

1.3. Site Close-Down Scenario: Comments and Assumptions............................................... 2

1.4. CRAMP Report Structure................................................................................................. 3

2. OVERVIEW OF SIGMA-ALDRICH IRELAND LIMITED SITE........................................ 5

2.1. Site Location..................................................................................................................... 5

2.2. Site History ....................................................................................................................... 6

2.3. Site Description ................................................................................................................ 7

3. SCREENING OPERATIONAL RISK ASSESSMENT................................................... 10

3.1. General........................................................................................................................... 10

3.2. Complexity...................................................................................................................... 10

3.3. Environmental Sensitivity ............................................................................................... 11

2.4 Compliance Record........................................................................................................ 13

3.5 Risk Category ............................................................................................................. 14

4. SCOPE OF CRAMP....................................................................................................... 15

4.1. General........................................................................................................................... 15

4.2. Key CRAMP Considerations .......................................................................................... 15

4.3. Exclusions from the CRAMP.......................................................................................... 16

5. CRITERIA FOR SUCCESSFUL DECOMMISSIONING................................................ 17

6. MANAGEMENT OF THE CRAMP................................................................................. 18

7. PROGRAM TO ACHIEVE STATED CRITERIA............................................................ 19

7.1. Closure Plan................................................................................................................... 19

8. RESTORATION AND AFTERCARE MANAGEMENT PLAN – MANAGEMENT OF POTENTIAL LONG TERM RESIDUAL SOIL AND GROUNDWATER CONTAMINATION......................................................................................................... 34

9. FINAL VALIDATION...................................................................................................... 38

9.1. EPA Notification ............................................................................................................. 38

9.2. Final Validation Audit ..................................................................................................... 38



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CONTENTS

Section Page No

10. TEST PROGRAM .......................................................................................................... 39

11. SUMMARY OF COSTS ASSOCIATED WITH THE CRAMP........................................ 40

12. FINANCIAL PROVISIONS ............................................................................................ 41

12.1. Current Financial Provisions .......................................................................................... 41

APPENDIX A - PARENT COMPANY GUARANTEE



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LIMITATIONS

URS Ireland Limited (URS) has prepared this Report for the sole use of Sigma-Aldrich

Ireland Limited in accordance with the Agreement under which our services were

performed. No other warranty, expressed or implied, is made as to the professional

advice included in this Report or any other services provided by us. This Report may not

be relied upon by any other party without the prior and express written agreement of

URS. Unless otherwise stated in this Report, the assessments made assume that the

sites and facilities will continue to be used for their current purpose without significant

change. The conclusions and recommendations contained in this Report are based upon

information provided by others and upon the assumption that all relevant information has

been provided by those parties from whom it has been requested. Information obtained

from third parties has not been independently verified by URS, unless otherwise stated in

the Report.

Where assessments of works or costs required to reduce or mitigate any environmental

liability identified in this Report are made, such assessments are based upon the

information available at the time and are subject to further investigations or information

which may become available. Costs may therefore vary outside the ranges quoted. No

allowance has been made for changes in prices or exchange rates or changes in any

other conditions which may result in price fluctuations in the future. Where assessments

of works or costs necessary to achieve compliance have been made these are based

upon measures which, in URS’s experience, could normally be negotiated with the

relevant authorities under present legislation and enforcement practice, assuming a pro-

active and reasonable approach by site management.

COPYRIGHT

© This Report is the copyright of URS Ireland Limited. Any unauthorised reproduction or

usage by any person other than the addressee is strictly prohibited.



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1. INTRODUCTION

1.1. Requirement for a Closure, Restoration and Aftercare Management

Plan

Sigma-Aldrich Ireland Limited formerly known as SAFC Arklow Limited and Honeywell

Iropharm plc, was granted an IPPC Licence (Reg. No. P0089-04) by the Environmental

Protection Agency (the EPA or the Agency) on the 29th of July 2009 for:

- the use of a chemical or biological process for the production of basic pharmaceutical

products; and,

- the recovery or disposal of waste in a facility, within the meaning of the Act of 1996,

which facility is connected or associated with another activity specified in this Schedule in

respect of which a licence or revised licence under Part IV is in force or in respect of

which a licence under the said Part is or will be required.

Condition 10 of the IPPC license requires the preparation and submittal to the EPA of a Closure, Restoration and Aftercare Management Plan (CRAMP). The specific requirements are as follows;

10.2 Closure, Restoration and Aftercare Management Plan:

10.2.1 The licensee shall maintain, to the satisfaction of the Agency, a fully detailed and

costed plan for the decommissioning or closure of the site or part thereof.

10.2.2 The plan shall be reviewed annually and proposed amendments thereto notified to

the Agency for agreement as part of the AER. No amendments may be implemented

without the agreement of the Agency.

10.3 The Residuals Management Plan shall include as a minimum, the following:

10.3.1 A scope statement for the plan.

10.3.2 The criteria, which define the successful decommissioning of the activity or part

thereof, which ensures minimum impact on the environment.

10.3.3 A programme to achieve the stated criteria.

10.3.4 Where relevant, a test programme to demonstrate the successful implementation

of the decommissioning plan.

10.3.5 Details of the costings for the plan and the financial provisions to underwrite those

costs.

10.4 A final validation report to include a certificate of completion for the residuals

management plan, for all or part of the site as necessary, shall be submitted to the

Agency within three months of execution of the plan. The licensee shall carry out such

tests, investigations or submit certification, as requested by the Agency, to confirm that

there is no continuing risk to the environment.



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The EPA Guidance Document entitled “Guidance on Environmental Liability Risk

Assessment, Residuals Management Plans and Financial Provisions” (hereafter referred

to the EPA CRAMP Guidance Document 2006) was used in the preparation of this

Closure, Restoration and Aftercare Management Plan.

This report describes the Sigma-Aldrich Ireland Limited site-specific CRAMP in response

to the EPA request.

1.2. Basis for the CRAMP

The basis of this CRAMP is as follows:

• A review of the activities carried out at the site, including process and services;

• Identification of existing and potential hazards, including evaluation of materials

and wastes generated;

• Consideration of historic environmental incidents and remediation works

undertaken;

• Identification of all items of plant and other materials that may be

decommissioned, rendered safe or removed from the site for disposal or recovery

in the event of closure; and,

• Identification of locations where cleaning, decontamination or remediation works

may be required in the event of decommissioning to prevent environmental

pollution.

1.3. Site Close-Down Scenario: Comments and Assumptions

In order to develop a fully costed CRAMP for the Sigma-Aldrich Ireland Limited site, a

number of assumptions have been made with regard to the mode and management of a

hypothetical site shut down:

1. The company operates a strict environmental policy. Therefore, any shutdown of

the site will be a well-planned and well resourced event. This implies that the

shut-down date will be known well in advance and that both production schedules

and raw materials purchasing have been planned with the shut-down already

factored in. It also implies that Sigma-Aldrich Ireland Limited will have the

resources in terms of both financial inputs and manpower to implement the

CRAMP through completion – with no requirement for external financing.

Furthermore, site utilities required for decontamination and decommissioning

procedures are considered to be readily available on-site for utilisation during

implementation of the CRAMP.

2. Completion of the plan will result in a decommissioned and decontaminated site

suitable for future industrial use and suitable for surrender of the site’s IPPC

licence. All buildings and site services, will be assumed to remain in place

following vacation of the site by Sigma-Aldrich Ireland Limited. The CRAMP

includes costs for buildings to be cleaned and decontaminated, emptied of all

materials, non-fixed equipment, and furniture, however, inside walls, false



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ceilings, fixed process equipment, duct work, HVAC system, and wiring will

remain in place. The CRAMP includes costs for cleaning, decontaminating and

decommissioning of emissions abatement systems, (such as WWTP, thermal

oxidiser,), and utilities (boilers, chillers, water treatment systems), but it assumes

that these systems will remain on the site. Potential resale value of emissions

abatement systems and utilities systems is not considered in this CRAMP.

3. All parts of the site are closed as part of one comprehensive CRAMP. No direct

reference to partial closure is made in the CRAMP. The CRAMP and associated

costs have been developed for a number of discrete program stages arranged in

a logical sequence to facilitate complete site closure. The actual steps to be

carried out and their associated costs for any partial shut downs may be derived

from the CRAMP by simply reviewing that part of the CRAMP which covers that

specific activity or land-parcel.

4. The CRAMP will be reviewed and updated as necessary, on an annual basis as

part of the AER. The annual review of the CRAMP will take any changes in site

status into consideration and incorporate planned activities.

1.4. CRAMP Report Structure

The structure of the CRAMP is outlined as follows:

Section 2 provides an evaluation and overview of the main site and surrounding history

and describes items such as buildings, activities and issues on the existing sites, which

are covered in the plan.

Section 3 describes the initial screening and operational risk assessment carried out for

the Sigma-Aldrich Ireland Limited facility.

Section 4 outlines the scope of the CRAMP, the type of closure envisaged and any

exclusions in the CRAMP.

Section 5 describes the proposed criteria to be used to demonstrate successful

decommissioning and decontamination.

Section 6 outlines management responsibilities for the implementation of the plan.

Sections 7-8 describes the CRAMP in a Project Management style with discrete stages

and associated tasks. Two programs are considered:

1. Closure Plan (CP) - the decommissioning and decontamination of all above and

below ground structures – including management of residues arising at the main

site.

2. Restoration and Aftercare Management Plan (RAMP) – the management of

any potential long-term residual soil and ground water contamination at the main

site and at the off site landfill.

Section 9 provides for the final validation following completion of the CRAMP.



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Section 10 makes reference to whether a test programme will be required at the site.

Section 11 provides a summary of the costs associated with the CRAMP.

Section 12 sets out the financial provisions made by the site to underwrite the anticipated

costs of the CRAMP.



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2. OVERVIEW OF SIGMA-ALDRICH IRELAND LIMITED SITE

2.1. Site Location

The facility is located on the Vale Road (R747), Arklow Town, Co Wicklow, approximately

80 kilometres south of Dublin and within 2 kilometres west-northwest of Arklow Town. A

general site location map is presented in Figure 1, detailing the relative location of the

site. The site occupies an area of approximately 6.4 hectares.

The site is located on the south-western flank of the Vale of Avoca with a gentle slope

down (in a north-easterly direction) towards the centre of the valley. A relatively steep

topographic rise can be observed to the west/southwest of the site beyond Vale Road

(see gradients on Figure 1). The Avoca River is approximately 150 m from the eastern

boundary of the site. To the south/southeast, open ground and light woodland lies

between the site and the northern suburbs of Arklow.

Surrounding land use is a mix of rural and industrial, as follows:

West:

The site is situated on Vale Road. This road runs approximately north-west to south-east

immediately south-west of the site.

Directly across the road there is a small commercial garden centre and a mix of woodland

and agricultural land. The land rises to the west of the site and the Ballyduff Stream runs

from south to north within 1 km west of the site, before turning to the north east and

joining the Avoca River about 500m upstream of the site.

North:

To the north of the site is the new N11 Arklow Bypass (see Figure 1). Beyond this is the

Avoca River and, on the northern bank of the river, the IFI fertiliser manufacturing plant

which is no longer in operation.

East:

The eastern site boundary is directly adjacent to a main railway line, which is slightly

elevated on an embankment. The Firewater Retention Pond is located to the east of the

Railway Line. There are also a number of fields on the floodplain of the Avoca River. The

Avoca River is approximately 150 m from the eastern boundary of the site.

South:

Open ground and light woodland lies between the site and the northern suburbs of

Arklow, which lie approximately 1 km from the site boundary.

The nearest residential property to the site lies approximately 200 metres from the site

boundary, along the Vale Road.



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2.2. Site History

The site was purchased in 1982 from Coillte (Irish Forestry Body) and was reportedly a

greenfield site prior to development in 1983. The site was developed as a

pharmaceuticals production plant in 1983 by the Schüler family. Planning permission for

the original facility was granted in 1983 and operations began in 1984. The original

facility consisted of P1 production building, the administration building and the laboratory.

A number of extensions to the facility have been completed since 1982. These are listed

below:

Original Manufacturing facilities 1982

Pilot research and workshop 1983

Tank farms security store and water intake/outlet 1983

Industrial warehouse 1986

Office and store 1986

Extension to factory 1986

Extension to production facilities 1987

New office and staff facilities 1987

Electrical substation 1989

Extension to warehouse 1989

Warehouse for raw material storage 1994

Maintenance workshop 1994

Extension of office building 1994

Construction of Powder Handling Building 1999

Wastewater Treatment Plant Commissioning 2000

Thermal Oxidiser Commissioning 2002

In July 1997 the Company was successfully acquired by Allied Signal, a company based

in Morristown, New Jersey. In 1999 Allied Signal merged with Honeywell. Allied Signal

subsequently acquired the name of Honeywell Iropharm Plc. In May 2006 the Company

was successfully acquired by Sigma-Aldrich, and now trades as Sigma-Aldrich Ireland

Limited.



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2.3. Site Description

2.3.1 General

The site manufactures customer specific active pharmaceutical ingredients (APl’s), both

established and new drug and generic APl’s that fall into both the customer specific and

open market categories. The plant produces approximately 30 different products and

these are a combination of generic and advanced active drug substances and advanced

drug intermediates.

The plant operates on a three-shift system for five days, with a day shift operated on

Saturday. The site closes for statutory holidays (Christmas Holiday shutdown) and has a

one-week shutdown during the summer.

Site output is around 90% generic drug manufacture and 10% intermediate. Products are

manufactured to order with approximately four-day batch processing time. There are

approximately 70 people are employed at the site.

2.3.2 Site Description

The main operational areas are described below;

1. Administration building: This is located in the northwest corner of the facility. This

houses the general office and administration area and the cafeteria. This building is

supplied with heating by a stand alone domestic size boiler. There is a 2m3 diesel

fuel storage tank located on the north western side of this facility which supplies fuel

to the boiler.

2. Raw materials warehouse: This is located on the northern side of the facility. It is of

concrete block construction with steel clad walls and roof, and a concrete floor. Raw

materials and some intermediates (non flammable) are stored in this area.

3. Finished goods warehouse: This is located immediately to the south of the raw

materials warehouse, and is of similar construction. This houses finished goods prior

to dispatch from the site.

4. Drum storage platform: This is located on the eastern boundary of the site and has a

concrete base. This is spilt into three areas. The first area is used to store drums of

solvent material, the second is used to store intermediate products and the third is

used to store aqueous wastes produced on-site and awaiting disposal.

5. Production Building 2 (P2) and Pilot plant: This is located in the centre of the site.

This is used for the production of active pharmaceutical ingredients (APIs).

6. Production Building 1 (P1) and boiler room: This is located immediately to the south

east of P2. General manufacturing processes take place in the area for the

production of intermediates. The boiler room is located immediately south of the P1

Area. There are two boilers which utilise natural gas for the generation of steam.



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7. Production Building 3 (P3) Production area: This is located immediately to the

southeast of P1 production area. This was historically used as a storage area for

solvent awaiting recovery or disposal. It is now used for the manufacture of APIs. P3

houses the Simulated Moving Bed Chromatography (SMB) Plant which is used for

separation of chiral drugs. The SMB is linked to its own tank farm and an evaporator

and condenser for recycling of SMB solvents.

8. Powder Handling Building: The powder handling building was constructed in 1999

and is located to the north east of P3. Intermediate products from P1, P2 and P3 are

processed further in this building.

9. Waste Water Treatment Plant and Thermal Oxidiser: These are located in the south

eastern corner of the facility.

10. Tank Farm 1 and 3: These are located on the south western boundary of the facility

in a concrete bunded area. These house the above ground storage tanks for the

storage of raw materials and materials awaiting removal off site for recovery and/or

disposal. They also house the main above ground diesel storage tank (fuel supply

for the main site boilers).

11. Tank Farm 2 and 4: Tank farm 4 is located immediately north-east of P3 in a

concrete bunded area and is used for the storage of solvents used in the SMB

Process located in the P3 building. Tank Farm 2 is located at the southern corner of

the Powder Handling Building in a concrete bunded area.

12. Laboratory Building: This is located on the western boundary of the facility between

the administration buildings and the tank farm area. This is supplied with heat from

its own dedicated boiler. There were two above ground diesel storage tanks

immediately to the west of the laboratory in a concrete bund used for boiler fuel

supply. The laboratory is split into quality assurance and research and development

laboratories.

13. Laboratory store: This is located immediately to the south of the laboratory and north

of the tank farm area. This is the storage area for all hazardous materials used in the

laboratory and is internally bunded.

14. The Maintenance workshop: This is located towards the south western corner of the

facility. A waste oil storage area is also located at the workshop. There are also two

self bunded diesel tanks located on the eastern side of the workshop. These tanks

were supported on blocks. One of the tanks supplies fuel to the heating boiler in the

workshop area, while the other is used for refuelling of site vehicles. A recycling area

was located beside the workshop area.

15. The firewater supply tank: This is located immediately south of Tank Farm 3 in the

south west corner of the site. The transformer room is located immediately south of

this area. The Emergency Generator container (self contained unit) is located

immediately south of the Transformer Room. The diesel tank which supplied fuel for



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the emergency generator is located in a bunded area immediately east of the

emergency generator container.

2.3.3 Process Description

The site is involved in batch manufacture of bulk pharmaceuticals and advanced

intermediates. Around 30 products are made. The basic chemistry is based around

Grignard reactions and a typical synthesis consists of an initial condensation reaction

followed by a series of crystallisation purification steps.

If the final crystalline material is an intermediate then this is drummed and sold-as-is. If

the material is a final product then it passes through the drier-unit and is milled, ground or

sieved and packaged.

A pilot plant operation located adjacent to P2 is involved in a similar work on a smaller

scale for product development and also has one reactor for a process involving methyl

chloride.

The SMB Plant is located in the P3 building and is used for separation of chiral drugs.

The SMB is linked to its own tank farm and an evaporator for condensing and recycling of

SMB solvents. This equipment was updated in 2004.

A two-story laboratory is located in the northwest corner of the site. Production activities

are reliant on the laboratory carrying out in-process analysis of product and also for

finished product quality control.



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3. SCREENING OPERATIONAL RISK ASSESSMENT

3.1. General

As a starting point in the process, a relatively simple risk assessment decision matrix can

be used to classify sites according to Low, Medium and High risk and thereby select the

specific ELRA and Financial Provision (FP) requirements that will be needed. The risk

assessment decision matrix outlined in the EPA CRAMP Guidance Document 2006 was

used.

The risk assigned to the facility depends on the complexity of operations at the site, the

environmental sensitivity of the receiving environment and the compliance record

(compliance history) of the facility.

• Complexity – the extent and magnitude of potential hazards present due to

the operation of the facility (e.g. a function of the nature of the activity, the

volumes of hazardous materials stored on site etc.). A Complexity Band (G1

least complex to G5 most complex) for each class of activity has been

assigned and included in a Look-Up Table (Appendix B of the EPA CRAMP

Guidance Document 2006).

• Environmental Sensitivity – the sensitivity of the receiving environment in

the vicinity of the facility, with more sensitive locations given a higher score

(e.g. the presence of aquifers below the site, groundwater vulnerability, the

proximity to surface water bodies and their status, the proximity to sensitive

human receptors, etc). The Environmental Sensitivity is calculated on a site-

specific basis using a sub-matrix (Table 3.1).

• Compliance Record – the compliance history of the facility.

Each aspect is multiplied to give the Total Score for the facility, and this can be used to

place the facility into an appropriate Risk Category as follows:

• Risk Category 1 = Score < 5

• Risk Category 2 = Score 5 - 23

• Risk Category 3 = Score = > 23.

Once this has been completed, the licensee proceeds through the relevant steps of ELRA

and FP that are considered appropriate for the Risk Category.

3.2. Complexity

Significant work has been done by the Environment Agency (England and Wales) in the

development of the Environmental Protection Operator and Pollution Risk Appraisal (EP

OPRA) methodology for classifying activities, and a similar but shortened version of this

methodology has been developed for this process. Where available, Complexity Bands

have been derived, from similar classification in the EP OPRA Complexity Score. A look



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up table for Irish activities has been included in Appendix B of the EPA’s CRAMP

Guidance Document 2006.

The Complexity Band assigned to the activity is used to determine the value used in the

Operational Risk Assessments as follows:

G1 = 1, G2 = 2, G3 = 3, G4 = 4 and G5 = 5

On 29 July 2009, Sigma-Aldrich Ireland Limited was granted an IPPC Licence

Registration No. P0089-04.

The relevant complexity band for Sigma-Aldrich Ireland Limited according to Appendix B -

IPPC and Waste Activities Complexity Look-Up Tables within the EPA CRAMP Guidance

Document 2006 is detailed in Table 3.1 below.

Table 3.1 - IPPC Activities and Complexity Bands

IPPC Category

Activity Relevant Shell Complexity Band

5.16 The use of a chemical or biological

process for the production of basic

pharmaceutical products.

Annual production

<2000 te = G3

Waste Management Act 1996

11.1 The recovery or disposal of waste in a

facility, within the meaning of the Act of

1996, which facility is connected or

associated with another activity specified

in this Schedule in respect of which a

licence under Part IV is in force or in

respect of which a licence under the said

Part is or will be required.

G5 (incineration of

waste – refer to Note

after this table)

Note: - Although licensed to do so, Sigma-Aldrich Ireland Limited does not currently

utilise solvent as a fuel source at the site. In the event of the site moving towards burning

solvents a complexity score G3 is assigned to current operations. Any change to the

concluded Complexity status will be accounted for in any subsequent updates of this

CRAMP.

3.3. Environmental Sensitivity

A sub-matrix for environmental sensitivity is outlined in Table 3.2 at the end of this

section. This considers 6 key potential environmental receptors (as outlined below) and

assigns individual scores that are added together to arrive at a total environmental

attribute score.

The scoring system used is outlined in EPA CRAMP Guidance Document 2006. The total

environmental attribute score is used to look up the environmental sensitivity



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classification in Table 3.3. The environmental sensitivity sub matrix has been developed

based on professional judgment and with reference to the system designed in the EP

OPRA Scheme by the UK Environment Agency. The environmental sensitivity

classification is used in the operational risk assessment to calculate the total score.

The following sections outline the key potential environmental receptors that are

considered to arrive at a total environmental attribute score.

The key receptors include:

• Human Beings;

• Groundwater;

• Surface Water;

• Air Quality;

• Protected Ecological Sites;

• Sensitive Agricultural Receptors.

Table 3.2 Environmental Sensitivity Sub-Matrix

Environmental Attribute Environmental Attribute Score

Notes 1,2

Human Occupation

<50m

50m-250m

250m–1,000m

>1km

5

3

1

0

Groundwater Protection

Regionally Important Aquifer

Locally Important Aquifer Note 3

Poor Aquifer

Vulnerability Rating – Extreme Note 3

Vulnerability Rating – High

Vulnerability Rating – Moderate

Vulnerability Rating – Low

2

1

0

3

2

1

0

Sensitivity of Receiving Water

Class A

Class B

Class C

Class D

Designated Coastal & Estuarine Waters

Potentially Eutrophic Coastal & Estuarine Waters

3

2

1

0

2

1

Air Quality & Topography

Complex Terrain

Intermediate Terrain

2

1



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Simple Terrain 0

Protected Ecological Sites

Within or directly bordering protected site

<1km to protected site

>1km to protected site

2

1

0

Sensitive Agricultural Receptors

<50m from site boundary

50m-150m from site boundary

>150m from site boundary

2

1

0 Note 1 – The environmental attribute which is relevant to the Sigma-Aldrich Ireland Limited facility is underlined and bold. Note 2 – The scoring system used is taken from the EPA ELRA Guidance Document 2006. Note 3 – As the Geological Survey of Ireland, Groundwater Web-mapping site – www.gsi.ie

Table 3.3 Environmental Sensitivity Classification

Total Environmental Attribute Score Environmental Sensitivity Classification

Low <7 1

Moderate 7-12 2

High >12 3

Based on the above Environmental Sensitivity Sub-Matrix, the total environmental

attribute score for Sigma-Aldrich Ireland Limited is 8 which indicates that the

Environmental sensitivity Classification for the site and surrounds is 2.

2.4 Compliance Record

The compliance record score is derived from the compliance history of the facility and

whether the activities carried on resulted in contamination or pollution.

For newly licensed facilities and those operating without non-compliance of emission

limits, then these are classified as Compliant/New Facility and have a score of 1.

Licensed facilities with administrative non-compliances only are classified as

Administrative Non-Compliant and have a score of 2.

Licensed facilities with minor non-compliances (< 5 non-compliances in 12 month period)

are classified as being Minor Non-Compliant and have a score of 3. Facilities with minor

soil and groundwater contamination (i.e. those with concentrations above background but

not posing risk to the environment) are also considered in the class.

Licensed facilities with major non-compliance history (≥ 5 non-compliances in 12 month

period) and/or those with significant soil and groundwater contamination (i.e. requiring

remediation and/or long-term monitoring requirements) are classified as Major Non-

Compliant/Significant Ground Contamination and have a score of 4.



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Those facilities with repeated non-compliances (>10 Total) during a 12-month period are

classified as Repeat Non-Compliance and have a score of 5.

As part of the preparation of this CRAMP, documentation relating to IPPC licence

compliance and prosecutions was examined. This documentation review demonstrated

that Sigma-Aldrich Ireland Limited have a good record of compliance with the conditions

outlined in the IPPC Licence. In the last two years there has been only minor non-

compliance with IPPC Licence emission limit values to air and surface water.

Although there is a good history of compliance at the site with regard to the IPPC

Licence, a pollution record score of 3 is judged appropriate for the site as there is known

groundwater contamination (see section 7.2).

3.5 Risk Category

The proceeding subsection of this section has determined the:

Complexity Score (G3) = 3

Environmental Sensitivity Score = 2

Compliance Record Score = 3

The product of these scores is used to calculate a total score, which is then used to

assign the site-specific risk category (Table 3.3).

The product of the above scores is 18, which according to table 3.3 below indicates that

Risk Category 2 is applicable to the Sigma-Aldrich Ireland Limited Site.

Table 3.3 – Risk Category

Risk Category Total Score

Category 1 <5

Category 2 5-23

Category 3 >23

The Sigma-Aldrich Ireland Limited site is classified in Risk Category 2 which infers the

overall risk of the facility is medium.

The guidance provided in the EPA CRAMP Guidance Document 2006 for such facilities

was used when carrying out the remainder of this assessment.



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4. SCOPE OF CRAMP

4.1. General

The proposed CRAMP addresses both short/medium-term (Closure Plan) actions and a

longer-term programme (Restoration and Aftercare Management Plan). Together, these

form the Closure, Restoration and Aftercare Management Plan (CRAMP) for the Site.

The Closure Plan (refer to Section 7.1) will involve decommissioning and

decontamination of all process related structures currently used for production activities.

This will involve decommissioning and decontamination of:

• Production building;

• All other buildings: administration, labs, environmental control, cafeteria;

• Warehouse, Drum Store, Tank Farms, Waste storage;

• Utilities: boilers, chillers, compressors, electricity substation, back-up generators,

cooling towers; and

• All abatement equipment and solvent recovery.

The CRAMP (refer to Section 7.2) will address any medium to long-term issues

(Restoration and Aftercare Management Plan) associated with residual soil and

groundwater contamination, if such issues are identified, that may have resulted from the

Sigma-Aldrich Ireland Limited history of activities across the lands owned by the

company. A programme of post closure intrusive investigation is outlined in Section 7.2

should a post closure plan be needed at the time of closure.

4.2. Key CRAMP Considerations

The principal considerations in the CRAMP for Sigma-Aldrich Ireland Limited are

identified as follows:

• Safe removal and disposal from the site of all Active Pharmaceutical Ingredients

(APIs) and materials which may be contaminated with API;

• Safe removal and disposal from the site of hazardous waste such as un-used raw

materials, fuels, solvents, other chemicals, etc;

• Cleaning of bulk storage tanks;

• Cleaning of process transfer lines;

• Bunds, sumps and drainage line cleaning;

• Decommissioning of thermal oxidizer;



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• Decommissioning of WWTP;

• Safe removal and disposal from the site of non-hazardous waste; and

• Decommissioning of site utilities.

Site operations generate hazardous and non-hazardous waste. The types of waste

generated are outlined in section 7 of this report.

Any waste arising during decommissioning will be managed in accordance with Condition

8 of IPPC Licence Reg. No. P0089-04.

4.3. Exclusions from the CRAMP

Required annual reviews of this CRAMP will include for any variations on the layout that

may occur. The following items are excluded from the scope of this CRAMP:

a) Costs for building demolition and process equipment removal. Successful

decommissioning is determined as being completed when all building, wastes or

any other materials that could result in environmental pollution are removed from

the site and recycled, recovered or disposed in accordance with all regulations in

force at that time. The costs of removing all above and below ground structures

have not been included.

b) Certain site areas will continue to operate or remain operational after site

decommissioning. These include facilities such as the fire protection system, diesel

supply to the back-up generator for the fire protection system.

The only exception is where buildings and/or structures have to be removed to either

assess residual soil and groundwater (S&GW) contamination or for the implementation of

the S&GW remediation program – see Section 7.2.



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5. CRITERIA FOR SUCCESSFUL DECOMMISSIONING

The criteria for successful decommissioning to ensure minimum impact on the

environment with respect to residuals management are as follows:

1. The decontamination of all process equipment.

2. Documented and fully costed reports to ensure that all raw materials and finished

product have been dispatched from the site.

3. Documented and fully costed reports on the disposal of hazardous waste

including full certification required under law (Trans-frontier Shipment of

Hazardous Waste Regulations, 1998, Waste Management Act, 1996 and any

amendments to waste legislation, and the company’s IPPC Licence).

4. Documented and fully costed reports on the disposal of non hazardous wastes

including all certification required under the Waste Management Act and IPPC

licence.

5. Documentation relating to the proper management, and if necessary removal, of

asbestos containing materials.

6. Documentation relating to the proper management, and if necessary removal, of

PCBs/PCTs.

7. Removal of radioactive sources (if present) and disposal by contractors licensed

by the Radiological Protection Institute of Ireland.

8. Remediation of site soil and groundwater to pre-determined, risk based, remedial

goals, agreed with the EPA and verified by a program of groundwater monitoring

post corrective action.

9. A final validation report including a certificate of completion for the CRAMP for all

or part of the site as necessary, which will be submitted to the Agency within

three months of execution of the plan.

Note that, with respect to the above criteria, the costs and time to complete

decommissioning should not exceed that estimated in the most up-to-date revision of the

CRAMP in place at the time of decommissioning.



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6. MANAGEMENT OF THE CRAMP

The overall responsibility and management of the CRAMP will be undertaken by

designated members of site management, other relevant company personnel etc.

Responsibilities of this technical team will be formally defined. Prior to commencement of

the CRAMP, this team will be established.

The selection of personnel to form this team will adequately address the important

aspects of the CRAMP including financial management, environmental management etc.

All decontamination procedures, decommissioning operations and residuals

management, as required under this CRAMP will be authorised by the team.

In addition, the team will nominate a company co-ordinator to conduct all necessary

communications with relevant authorities and ensure the appropriate information transfer.



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7. PROGRAM TO ACHIEVE STATED CRITERIA

7.1. Closure Plan

7.1.1. General

The Closure Plan involves the decommissioning and decontamination of all above and

below ground structures – including management of residues arising.

The structure of the Closure Plan included in this CRAMP is based on a logical sequence

of events (project milestones) that would occur in the event of a shutdown. The end point

would be the removal of all residual materials from the site that could pose a threat to the

environment. All remaining structures/buildings would be in a steady-state and safe

condition.

In-ground sumps, drains and transfer lines, are dealt with in the Closure Plan only in

relation to decontamination of internal surface areas i.e. emptying and flush/rinse etc.

Issues associated with removal of structures and the assessment of soil/ groundwater

contamination is dealt with in the Restoration and Aftercare Management Plan.

The Closure Plan is constructed in a Project Management style format with a number of

stages, each with a set of specific tasks that involve the management of residual waste.

The individual stages are in a logical sequence however; some overlap in terms of time-

lines is expected.

The individual stages are:

Stage 1: Production decommissioning, including transfer of residuals to on-site

storage;

Stage 2: Removal of excess raw materials and final product from site;

Stage 3: Removal of production related hazardous/non-hazardous wastes from site;

Stage 4: Contract cleaning of tanks, bunds, sumps and interceptors;

Stage 5: Removal of non-process related materials and non-hazardous wastes;

Stage 6: Decommissioning of non-essential site services;

Stage 7: Decommissioning of emissions to air abatement systems;

Stage 8: Decommissioning of the Waste Water Treatment Plant;

Stage 9: Removal of residual hazardous materials (Non process related);

Stage 10: Decommissioning of remaining site services; and

Stage 11: Documentation and certification of decommissioning and decontamination.

Each stage is considered under the following headings:

• Tasks to complete Stage;

• Cost to complete;



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• Time to complete; and,

• Plant Status at completion of Stage.

7.1.2. Stage 1: Production Decommissioning

This stage will be applied to the Production Buildings. Tasks likely:

• Task 1: Cancellation of incoming materials;

• Task 2: Transfer all raw materials and finished product to appropriate storage on

site;

• Task 3: Cleaning and Decontamination of process equipment.

All equipment shall be emptied of all materials. The materials from vessels, reactors,

distillation units, centrifuges, receivers, shall be cleaned in accordance with best practice

cleaning procedures in operation at the time.

• Task 4: Decommission Plant and Equipment (Production).

Plant and equipment will be decommissioned in an orderly fashion and in accordance

with the manufacturer’s recommendations. As plant equipment is available, it will be

packed and sent to a similar site of Sigma Aldrich as soon as is practicable, or sold as

second hand goods. Hazardous wastes including solid waste and waste oils shall be

disposed of by an authorised waste contractor.

Most liquid streams (e.g., during decontamination) are likely to be discharged as process

effluent directly to the process effluent drainage network, transferred to the on-site

wastewater treatment plant (WWTP) and the treated effluent discharged to the Avoca

River under the terms of the IPPC Licence.

Process wastewater containing hazardous materials and which may not be suitable for

treatment in the WWTP may be produced during specific cleaning operations. This

contaminated wastewater will be collected in accordance with current site procedures,

and stored in suitable containers on-site prior to disposal off site by approved waste

contractors.

Plant Status at Completion of Stage 1

Following successful completion of Stage 1, it is anticipated that all site production

buildings will be adequately decontaminated and in a “safe to work” and environmentally

secure state. This means that all API, solvent and other residues are removed, process

equipment clean and, where possible, sold as second-hand equipment or removed to

other Sigma Aldrich facilities.

Time to Complete

It is estimated that Stage 1 will be dominated by decommissioning and decontamination,

estimated to take 110 weeks to complete in full.



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Budget Cost Estimate

As described in Section 1.2 it is assumed that the shutdown is a well-planned and

resourced event. It is anticipated that an external contractor consultancy firm will be

retained on site to oversee the decommissioning and decontamination of process plant

and equipment. The estimated sum of €200,000 is provided for this work.

Other costs associated with Stage 1 including the removal of the hazardous liquid wastes

residuals expected to arise during Stage 1 are estimated included in Table 7.1. in Stage 3

– Removal of Production Related Hazardous/Non-Hazardous Wastes.

7.1.3. Stage 2: Removal of Excess Raw Materials and Final Product

Stage 2 - Task 1: Dispatch of intermediates and finished product from final

production to customers.

The drums of finished product and intermediaries are very valuable, therefore it can be

assumed that all of it will be either sold to customers or dispatched to another Strategic

Business Unit of Sigma-Aldrich for further processing.

a) Intermediates produced during manufacture will be further processed into finished

goods and sent to the respective customers. Alternatively, the material will be sent

to a similar Strategic Business Unit of Sigma Aldrich for further processing.

Based on information provided by the site, approximately 12 Tonnes (80 drums) of non

halogenated materials, 12 Tonnes (80 drums) of halogenated materials and 1 Tonne of

solids are estimated to be present on the site. This is based on the assumption that 5% of

the intermediate inventory would not be processed and would have to be shipped off site.

The quantities are estimated based on a random inventory.

Time to Complete: It is estimated to take 2 weeks to remove intermediates from the site.

Budget Cost Estimate: The following costs have been estimated for:

� Non halogenated materials – 12 Tonnes (80 drums) - €4,600

� Halogenated materials – 12 Tonnes (80 drums) - €5,100

� Solids – 1 Tonne - €1,300

Total costs for this task of stage 2 are estimated at €11,000.

b) Finished materials will be sent to respective customers or if unsold, will be sent to a

similar site of Sigma Aldrich for storage until sold (additional stored finished

material in new warehouse).

It is estimated that 2 Tonnes of solid product and 1 Tonne of liquid product will be sent to

customers per week.



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Time to Complete and Budget Cost Estimate:

The cost of shipping to customers cannot be determined. As a contract manufacturer,

Sigma Aldrich Ireland Limited supply a large number of customers worldwide and the cost

of shipping final product will vary depending on the destination.

Stage 2 - Task 2: Shipping of Excess raw material off site

From information supplied by the site, the following will be undertaken:

c) All raw materials shall be returned to the respective suppliers (Additional material

from new warehouse).

It is estimated that approximately 600 drums (8 drum loads) of raw materials will be

present on the site upon completion of Stage 1. It is assumed that only 7 bulk storage

tanks will contain virgin solvent and this will be used on the site as the plant will be

phased out over a certain period of time.

Time to Complete: Raw materials should be removed from the site over a 6 week period.

Budget Cost Estimate: Each drum load consists of 80 drums and the estimated cost of a

shipment is €4,000 as an average between halogenated and non halogenated

compounds. The total estimated cost for the removal of raw materials from the site is

€41,000.


The Warehouses, Drum Storage Areas and Tank Farms will be clear of raw materials.

Budget Cost Estimate for Stage 2

The total estimated cost associated with Stage 2 is €52,000.

7.1.4. Stage 3: Removal of Production Related Hazardous/Non-Hazardous

Wastes

At this point, all substances that can be considered waste, either hazardous or non-

hazardous, will have been placed in designated areas. The waste may include raw

materials (detailed in Stage 2) that cannot be returned to suppliers or sold on to

interested third parties.

In the case of hazardous waste disposal, all requirements of the current IPPC Licence will

be considered, especially in relation to hazardous waste that is not scheduled on the

IPPC Licence. Therefore, this waste will require the prior written approval of the EPA

before the waste can be removed from the site.



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Stage 3 will include the following tasks:

• Administrative organisation of shipments.

• Removal of the waste in accordance with appropriate National and EU Legislation.

• Administrative organisation of relevant paper work. All waste shipments during this

period will be documented according to EPA Guidelines. This will facilitate the

requirement to have stated criteria for proper decommissioning (see Section 5.0).

Tables 7.1 and 7.2 summarise the expected quantities of hazardous waste and non-

hazardous waste respectively that are expected to be shipped from the site during

decommissioning. The waste disposal figures employed for this exercise were

determined in consultation with the waste data for 2009. The tonnage of waste in each

case is based on the assumption that all tanks used for holding waste either solvent or

aqueous will be full at the time of shutdown.

The cost is based on a flat rate of €1000 per Tonne of solid waste and €1000 per Tonne

for waste solvent in drums. The cost associated with non-hazardous waste is based on a

rate of €150 per Tonne. The final cost of transport and disposal of waste is likely to be

less because the lower prices for recovery and recycling of some waste streams are not

taken into account in this report.

Time to Complete

It is expected that this stage will take 3 months.

Cost Estimate

The predicted costs associated with this stage are summarised in Tables 7.1 and 7.2.

Plant Status at the end of Stage 3

All production related hazardous and non-hazardous wastes removed from:

a) Waste storage areas;

b) Drum storage; and

c) Tank Farms.



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Table 7.1. Production Related Hazardous Waste Inventory.

Waste Type Note 1 Amount (tonnes) Note 1 Estimated Cost (€)

Aqueous waste 3.9 3,900

Mixed solvent 73 73,000

Thermal Oxidiser Waste 20 20,000

Contaminated packaging material, containers,

PPE, carbon and absorbents. 1.9

1,900

Laboratory chemicals 0.5 500

WEEE 4 600

Waste not otherwise specified:Note 2 10 10,000

TOTAL € 109,900

Note 1 – This information is based on the production of hazardous waste on the site during 2009. Quantities are

determined by utilising one month hazardous waste data.

Note 2 - Whilst every attempt to identify sources of hazardous material, it is expected that certain materials will only

become apparent upon actually closure of the facility and therefore a contingency of 10 tonnes of miscellaneous

hazardous material has been included.

Table 7.2. Production Related Non Hazardous Waste Inventory



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Waste Type Amount (tonnes) Note

2

Estimated Cost (€)

Dewatered WWTP sludge 1.2 180

Sludge from FWRP 3.3 495

Sludge from WWTP (not dewatered) 2.27 340

Sludge from Septic Tank 6.4 960

Scrap Metal 4.3 645

Plastic Drums 0.3 45

Office paper 0.2 30

General waste 0.5 75

Food waste 0.1 15

Paper/cardboard/packaging 2.6 390

Wood (timber and pallets) 2.27 340

Construction and demolition waste 0.2 30

Waste not otherwise specified (incl:)Note 2 50 7,500

TOTAL € 11,045

Note 1 – This information is based on the production of non-hazardous waste on the site during 2009. Quantities are

determined by utilising one month non-hazardous waste data.

Note 2 - Whilst every attempt to identify sources of non-hazardous material, it is expected that certain materials will

only become apparent upon actually closure of the facility and therefore a contingency of 50 tonnes of miscellaneous

non-hazardous material has been included. This may include office paper, furniture, and various equipment.



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7.1.5. Stage 4: Contract cleaning of tanks, bunds, sumps;

Cleaning of tanks

There are 63 bulk storage tanks varying from 1m3-25m

3 in capacity. All bulk storage tanks

containing virgin and waste solvent shall be emptied and the solvents returned to the

supplier. Alternatively, these solvents will be sent for recovery to an authorised recovery

facility. All storage tanks containing waste aqueous phases and mother liquors shall be

drummed up in accordance with current environmental practice for the disposal of such

materials off site to an authorised waste contractor.

The vacuum pump water tank and septic tank shall be decommissioned in accordance

with good engineering practices. The three underground storage tanks shall be emptied,

cleaned and filled with an inert substance. This should ensure the protection of surface

and groundwater.

Once all storage tanks are emptied they shall be washed down and decontaminated. It is

proposed that all lines will be purged with nitrogen before dismantling and almost all

tanks can be removed without dismantling. Wash water from the cleaning process shall

go to the waste water treatment plant (WWTP) for treatment, while ensuring that the

current emission limit values for the effluent parameters are not exceeded.

Cleaning of bunds, sumps, interceptors and drainage

There are bunds, sumps and a significant process drainage network on the site

associated with material storage areas, production, utilities and abatement equipment.

It is expected that most of the rinses from bulk storage, sumps, bunds and process

drainage washing may be suitable for diversion as process effluent to the on-site WWTP.

Bunds will be checked to ensure their integrity and any necessary repairs will be carried

out to ensure the protection of surface and groundwater.


All bulk storage, bunds, sumps and drains on-site cleaned and decontaminated by

specialist cleaning contractors and any residuals treated in the on-site incinerator, WWTP

or disposed of by the waste contractors.

Time to Complete

It will take approximately 6 weeks to complete cleaning of solvent storage tanks, bunds,

sumps and process drainage network. An estimated timeframe of 3 weeks is assigned to

complete cleaning and decommissioning of the vacuum pump water tank and septic tank

on site.


An estimated sum of €158,000 for the cleaning of solvent storage tanks, bunds, sumps

and process drainage network, has been assigned.



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In addition, the cost associated with the cleaning and decommissioning of the vacuum

pump water tank, septic tank and underground storage tanks is €2,000.

The total estimated cost associated with Stage 4 is €160,000.

7.1.6. Stage 5: Removal of non-process related materials and wastes

There are several small storage areas on the site with various utility chemicals including

the laboratory chemical store and two “chemstore” units located to the southeast of the

finished goods warehouse. These materials must be either returned to the suppliers or

disposed as hazardous waste by a waste contractor. Costs for disposal of majority these

materials are accounted for in 7.1.3.

In addition, there will be other non-hazardous residual materials such as:

• Plastics and packaging;

• Mechanical parts;

• Protective clothing; and

• Miscellaneous.

It can be assumed that each major area of the site will have a skip allocated for the above

non-hazardous waste; therefore approximately 10 skips will be allocated. At the time of

writing this report one of the site’s current waste contractors quoted approximately €300

per skip, requiring a total of €3,000 for disposal of non-hazardous, non-process related

waste.

Both hazardous and non-hazardous non-process materials will be removed and disposed

in accordance with the site’s IPPC licence requirements.

Stage 5 - Time to Complete

It is expected that this stage will take 2 weeks.

Stage 5 - Budget Cost Estimate

The approximate cost for removal of non-process related materials and wastes is €3,000.

7.1.7. Stage 6: Decommissioning of non-essential site services

This stage of decommissioning will apply to the following site utilities:

a) Chillers

b) Boilers

c) Cooling towers

d) Water treatment system



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e) Emergency generator

f) Maintenance Workshop

g) Laboratories (Quality Laboratory and Research & Development Laboratory in the

Laboratory Building and the WWTP Laboratory)

h) Administration and control rooms

Most of the site services on the Sigma-Aldrich Ireland Limited site are serviced by the

staff. There is a very limited use of external contractors.

Chillers

There are six chiller systems located throughout the site. It is assumed that

decommissioning will be carried out by Sigma-Aldrich Ireland Limited staff; however, a

PC sum of €2,000 has been included for the costs that may occur during

decommissioning such as waste not accounted for in other sections, specialist equipment

hire or expert advice.

Boilers

The three boilers currently on site (one boiler associated with the thermal oxidiser plant)

shall be decommissioned in accordance with good engineering practice and the

manufacturer’s recommendations. This stage shall include decontamination of the

boilers. Wastewater from the boilers shall be released to the WWTP for treatment

ensuring that the current emissions limit values are not exceeded. The boilers shall be

sold on as second hand.

It is assumed that decommissioning will be carried out by Sigma-Aldrich Ireland Limited

staff; however, a PC sum of €10,000 has been included for the costs that may occur

during decommissioning such as specialist equipment hire or expert advice.

Cooling Towers

The cooling water is provided by a cooling water tower. The non-contact cooling water

will be treated in the on-site WWTP.


staff; however, a PC sum of €2,000 has been included for the costs that may occur during

decommissioning such as specialist equipment hire or expert advice.

Nitrogen

Nitrogen is used to provide an inert atmosphere in all vessels containing flammable

liquids. Nitrogen is used as a coolant for very low temperature processes. Gaseous

nitrogen is delivered by a nitrogen generation plant and a liquid nitrogen/vaporiser set.

The plant and vaporiser will be decommissioned by Sigma-Aldrich Ireland Limited staff.



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Emergency/Back-up Generators

The emergency generator feeds different areas of the site, therefore will be left active.

Laboratories

It is assumed that laboratory instruments can be sold on as assets, with decommissioning

costs associated primarily with expired chemicals and laboratory waste disposal. The

costs for the disposal of chemicals has been included in section 7.1.4.

Maintenance Workshop

The maintenance workshop contains some engineering equipment (welders, drills, angle

grinders, etc.). All equipment will be removed from site and sold on and the majority of

materials will be returned to the supplier or sold. It is not envisaged that there will be any

substantial cost involved.

Administration and Control Rooms

This includes the main administration building, offices in all the other buildings on the site,

cafeteria, control rooms and document store in the Production Building. At this stage, it is

assumed that only partial administration facilities will be required for the remaining site

decommissioning operations and the successful completion of the CRAMP. Outside of

the waste paper and other recyclables, the only anticipated difficult residuals associated

with decommissioning of the administration buildings include office waste electrical and

electronic equipment (WEEE). Due to the short life span of office electronic equipment

and sensitivity of the equipment due to sensitive data, it is assumed that all electronic

equipment will be considered waste.

There is also a significant quantity of electronic equipment located in the control rooms

associated with the facility. It is assumed that the control equipment will be

decommissioned and sold on with the associated environmental monitoring equipment.

However, some of this equipment may become waste, and an estimated cost for WEEE

recycling for the site has been included in Section 7.1.4.

Fire protection system

• Firewater Retention Pond (FWRP)

The accumulated water from the FWRP should be sampled and tested. If

suitable, it should be released into the sewer; otherwise the water should be

treated in the on-site WWTP. All sludge should be emptied from the FWRP and

disposed of as non-hazardous waste. The cost for this disposal has been

included in Section 7.1.4.

• Diesel Fire Pumps

The diesel fire pumps which serve the sprinkler systems will be left active and

will be maintained until such time as Sigma-Aldrich Ireland Limited operations

resume or until the plant is sold to an interested third party.



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• Fire Sprinkler System

The fire sprinkler systems will be left active and will be maintained until such

time as Sigma-Aldrich Ireland Limited operations resume or until the plant is

sold to an interested third party.

Plant Status at the Completion of Stage 6

All site utilities, labs, offices and administration building with the exception of the electrical

substation, process water, air compressors, WWTP, thermal oxidiser and other

environmental monitoring systems effectively decommissioned.

Time to Complete

Utility decommissioning should not start until contract cleaning (Stage 4-5) has been

completed. An overall estimate of the time to decommission all utilities is 3 weeks.


The approximate cost for the decommissioning of site services is €14,000.

7.1.8. Stage 7: Decommissioning of emissions to air abatement systems

Task 1: Thermal Oxidiser

The thermal oxidiser will be decommissioned by a specialist contractor who is employed

to maintain the system. The thermal oxidiser has several parts, which should be cleaned

and decontaminated as per current cleaning and maintenance procedure including the

combustion chamber, waste heat boiler, heat recovery section and scrubber system.

The decommissioning procedure will be similar to the current procedure employed during

a maintenance shutdown of the thermal oxidiser such that the thermal oxidiser will be

shutdown in accordance with thermal oxidiser operating instructions and will be cleaned

and any residuals stored for off site disposal. Thermal oxidiser waste is included in Table

7.1 and aqueous waste associated with decommissioning of the thermal oxidiser will be

treated in the on-site WWTP.

Following the decommissioning, the testing programme for contamination with hazardous

materials inside the thermal oxidiser must be completed. This programme will include

sampling of the combustion chamber lining for dioxins, PAH and heavy metals and

sampling of dust and slag from waste heat boiler. A sum of €5,000 is assigned for the

completion of this testing programme.

Plant Status at Completion

Thermal oxidiser decommissioned.



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Final


A sum of €5,000 is assigned for the test programme required for the thermal oxidiser as

part of Stage 7.

Task 2: Dust Filtration (Emission Points A1-2 to A1-6)

All ducts, vents, and pipework associated with these emission points, where dusts,

including APIs, may be encountered, will be cleaned and decontaminated by a specialist

cleaning contractor.

Aqueous waste streams produced by cleaning of ducts and vents will be treated in the

on-site WWTP. An approximate estimate for the cleaning and decontamination of all

ducts, vents and associated pipework is €16,000.


All ducts, vents, and pipework connecting various equipment and areas of the site

cleaned and decontaminated.


The cost estimate for wastes associated with the decommissioning of the thermal oxidiser

can be found in Table 7.1. An additional estimated cost of €21,000 has been assigned for

the completion of Stage 7.

Time to Complete

An overall estimate of the time required to complete Stage 7 is 8 weeks.

7.1.9 Stage 8: Decommissioning of the Waste Water Treatment Plant

All suitable wastewater generated during decommissioning of the site will be treated at

the site’s WWTP, in accordance with the conditions of the operating IPPC licence. As a

result, decommissioning of the WWTP will be one of the last tasks to be completed on the

site.

The WWTP shall be decommissioned in the following way:

a) All tanks shall be emptied;

b) The contents of the tanks, including sludge shall be disposed of off site;

c) All equipment and back up equipment shall be cleaned and removed off for sale or

transport to another Sigma Aldrich site;

d) The integrity of tanks shall be assessed to ensure protection of surface and

groundwater; and



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Final

e) Tanks will be locked or covered where possible to prevent ingress of rain water

and if necessary, tanks will be infilled with an inert substance.


This is based on the assumption that if the plant is resold there will be no need for a

wastewater treatment plant; also the cost of filling the tanks is €3.00 per m3. This gives a

total consolidated budget cost estimate for the WWTP decommissioning of €24,000.

Stage 10 - Time to Complete

The wastewater treatment plant would be the final facility to be decommissioned at the

end of the decommissioning process. The estimated time required to decommission the

WWTP is 8 weeks.

Status at the end of Stage 10

Wastewater Treatment Plant decommissioned.

7.1.9. Stage 9: Removal of residual hazardous materials (Non process related)

A Type 2 asbestos survey was carried out on the Sigma Aldrich Ireland Limited site in

October 2003 and the following was noted:

• The roofs of production areas P1 and P2,the boiler house and finished goods

warehouse were made of concrete panels containing asbestos;

• The roof tiles on the administration building appeared to be natural slate but it

was not possible to inspect the entire roof and some may contain cement

asbestos replacements; and

• White asbestos was identified in pink and grey gaskets in the engineering

stores.

The site have not identified or reported the presence of PCBs or Ozone Depleting

Substances at the site.

Based on the above, a sum of €2000 has been included for the costs of removal and

disposal of such asbestos containing materials. This section will be re-evaluated during

the annual CRAMP review should any additional costs relating to the removal of residual

hazardous materials arise on the site.

7.1.10. Stage 10: Decommissioning of remaining site services

This stage of decommissioning will apply to the following site utilities:

a) Air compressors;

b) Electrical substation (except sub-system needed for emergency power /lighting);

c) Process water



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Final

Air Compressors


staff; however, a PC sum of €1000 has been included for the costs that may occur during

decommissioning such as waste not accounted for in other sections, specialist equipment

hire or expert advice.

Electrical substation

The electrical substation will be rendered safe and it is assumed that decommissioning

will be carried out by Sigma-Aldrich Ireland Limited staff; however, a PC sum of €1,000

has been included for the costs that may occur during decommissioning such as waste

not accounted for in other sections, specialist equipment hire or expert advice.

Plant Status at the Completion of Stage 12

Remaining site utilities (air compressors, electrical substation, and process water) will be

effectively decommissioned.

Time to Complete

Stage 12 should not start until Stage 11 has been completed. An overall estimate of the

time for completing Stage 12 is 2 weeks.

Budget Cost Estimates

The approximate cost for the decommissioning of site services is €2,000.

7.1.11. Stage 11: Documentation and Certification

Throughout implementation of the CRAMP, documentation will be generated to track

progress. All residues removed from site will be recorded and final clearance certificates

will be prepared as required under the terms of the IPPC licence and as required under

relevant waste management regulations. A final validation report including a certificate of

completion for the closure, restoration and aftercare management plan, for all or part of

the site as necessary, will be submitted to the Agency.



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8. Restoration and Aftercare Management Plan – Management of

Potential Long Term Residual Soil and Groundwater Contamination

8.1.1. Background

The site was granted an IPC Licence in 1997. Prior to the issue of the IPC Licence, an

incident is reported to have occurred in 1990s whereby a spill of diesel oil (heating oil)

from an aboveground tank, into the surface water drainage system via an underground

line. Surface water discharged into a percolation are of marshy land which has since had

the powder handling building, tank farm 3 and associated utilities constructed upon it. An

oil sheen was observed in the Avoca River and on the advice from an external consultant,

site representatives utilised absorbent materials to absorb the diesel in the percolation

area. No soil testing or further remedial action was undertaken by the site. It is

considered possible that some residual contamination may exist in the area of the spill;

however this is considered unlikely to represent a potential liability, due to the time which

has passed since the spill and the alleged limited size of the spill. Groundwater

monitoring data from the boreholes at the site has not indicated any impact due to diesel

contamination.

Groundwater monitoring requirements for the site are set out in Schedule 6 of the site’s

IPPC licence Reg. No. P0089-04. The site has 10 groundwater monitoring wells which

are sampled bi-annually. In 1997, groundwater monitoring carried out in accordance with

the IPC Licence indicated levels of cis-1,2-dichloroethane (1,2-DCA) at concentrations of

between 0.6 and 0.9 mg/l in one of the on-site abstraction wells. Reviews of historical

reports indicate the cause of the soil and groundwater contamination could not be

conclusively identified.

A detailed hydrogeological assessment was undertaken at the site in 1999 whereby

boreholes were drilled at various locations around the site and groundwater and soil

samples were collected and analysed. Groundwater impacted by 1,2-DCA was found to

be in the vicinity of the Raw Materials/ Product Warehouse. 1,2-DCA was present in

excess of the Dutch intervention criteria in BH5 and BH6 located in the area immediately

behind the final product warehouse. Benzene, toluene, ethylbenzene and xylene (BTEX)

compounds were detected at elevated concentrations in excess of the Dutch intervention

criteria in BH4 and BH7. The principal contamination issues identified in shallow

groundwater from the 1999 investigation were 1,2-DCA contamination of the shallow soil

aquifer and bedrock aquifer in the vicinity of the raw materials warehouse and drum

crushing area. The primary concern was the potential impact of the contamination on

groundwater quality downgradient of the site.

During 2001, a quantitative environmental risk assessment was carried out at the site.

Based on this assessment, a monitoring based strategy was recommended for the site to

be initially completed over a two year period with a further review at the end of this period

which was agreed with the EPA subject to the installation on two additional monitoring

wells on the site. The absence of VOCs in the downgradient wells indicated that the

groundwater impact observed at the site was relatively localised. Overall a decreasing

trend in concentrations of organic compounds in groundwater was observed during the



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period 2003-2005. The current monitored natural attenuation (MNA) strategy at the site is

on-going and regular monitoring of the boreholes is continued at the site.

In two monitoring rounds during 2007, VOCs were not detected in excess of any

laboratory method detection limit in any boreholes except BH6 and BH8. The

downgradient wells BH9 and BH10 showed no impact by VOCs during this period and

this would indicate that the zone of contamination continues to be localised within the

site. A risk assessment carried out on soil sampling at the site during 2007 indicated that

no contaminants were present in excess of the human health screening criteria used,

based on continued land use of the site for commercial industrial purposes.

During 2009, it is understood a leak occurred in an underground fuel transfer line

connecting a boiler located in the R & D Laboratory Building with an outdoor above

ground tank. Groundwater samples were obtained from five wells on the site and

analysed for the presence of hydrocarbons, BTEX, Methyl tert-butyl ether (MTBE) and

Total Organic Carbon (TOC). With regard to soils, six trial pits were dug out in the vicinity

of the spill and an additional three sediment samples were collected and analysed. From

analysis undertaken, there were no detections of non-aqueous phase liquids,

hydrocarbon sheen or odours in the sampled wells downgradient of the site. However,

hydrocarbon contamination was identified in soils in the vicinity of the leak area.

In November 2009, excavation of the most heavily contaminated soils in the vicinity of the

spill was undertaken. In addition, nine treatment points were installed in order to apply

bioremediation solutions to the remedial area. The bioremediation solutions were applied

over a six-week period between November 2009 and January 2010, to treat the local

contamination plume and any residual contaminated soils which may not have been

reached through excavation. Following the works carried out, four validation soil samples

obtained did not record detectible concentrations for the selected analytes and no

evidence of residual contamination was observed during sample collection.

The EPA has requested Sigma Aldrich Ireland Limited to carry out an intrusive

investigation in the area of the spill which will be undertaken during 2011. The cost

required to complete this investigation is estimated to be in the order of €6,000.

8.1.2. Characterisation of Potential Source Areas of Chemical Release

A fundamental principle underpinning the CRAMP will be to manage any potential

contaminated soil or groundwater at the site. Therefore, the following section outlines the

closure plan for assessing and remediating the site in terms of the potential risks to soil of

groundwater from contamination on site. A programme of post closure intrusive

investigation is outlined below should a post closure plan be needed at the time of

closure. The aim of intrusive investigation would be to establish where (if anywhere) there

is soil contamination and whether any soil or groundwater-specific corrective action may

be required at the site.

The post closure investigation would encompass potential source areas of chemical

release (production areas, areas with concentrated storage and use, areas of historical

storage, etc). It is envisaged that the investigation would be carried out following plant



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closure, to allow access to areas of the site and to avoid interfering with the

decommissioning and plant decontamination phase.

Where possible, groundwater samples will also be retrieved during the investigation work

and together with existing data recorded by the site will be used to determine the quality

of the groundwater beneath the site. The need, if any, for additional (medium to long-

term) groundwater monitoring will be dependent upon the soil investigation results.

As outlined above the major steps for the Long Term Programme (LTP) will be initiated

immediately following decontamination and decommissioning of the plants operational

areas. The key steps of this programme are predicted to be as follows:

1. Characterise potential source areas of chemical release (soils) and define

remedial targets (if appropriate);

2. Carry out soil sampling of potential source areas;

3. Obtain groundwater samples and analyse for target compounds based on

assessment of operations at the site;

4. Design/implementation of source area soil remediation programme (if

appropriate);

5. Design/implementation of source area groundwater remediation programme (if

appropriate). This may be simply monitoring or may include active remediation;

6. Longer term post remediation monitoring and/or decommissioning of remedial

plant when remedial targets achieved;

Investigation of potential source areas of chemical release will involve the drilling of soil

bores for soil sampling, and the excavation of trial pits in key areas to allow visual

inspection and sampling of soils.

The budget required to complete an investigation of potential source areas, including

laboratory analysis, quantitative risk assessment (to derive risk based remedial actions

and goals) and risk communication is estimated to be of the order of €50,000. This is a

provisional fee and as outlined above, may not actually occur at the time of site closure.

This section will be re-evaluated during annual CRAMP review. Should any additional

accidents or incidents that could possibly cause soil or groundwater contamination occur

at the site, or should groundwater monitoring programme indicate contamination of the

groundwater, the costs for any additional post closure intrusive investigation, (medium to

long-term) groundwater monitoring and remediation will be included.

8.1.3. Design/Implementation Source Area Soil Remediation Programme (as

appropriate)

As a worst-case assumption, soil remediation may be required in certain source areas as

part of the remediation programme. The magnitude and extent of any future soil



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contamination and the requirement for remediation will only be understood following the

detailed, post-closure investigations outlined above.

The potential to encounter significant soil contamination is considered to be low.

If the post-closure investigation encounters significant shallow soil contamination, it will

be evaluated following EPA requirements.

The budget required to complete soil and groundwater remediation is estimated to be of

the order of €20,000, excluding costs of associated demolition and site clearance, if

required.

8.1.4. Management of Corrective Action Programme with Post Remediation

Monitoring

Following site closure a period of groundwater monitoring may be required.

In a site closure and decommissioning situation, the scope of the groundwater monitoring

programme is likely to involve annual groundwater monitoring and would be based on the

most up-to-date data available on the quality of groundwater at that time.

Assuming a three year period of routine monitoring, to be agreed with the EPA, until final

closure and surrender of the IPPC licence, groundwater monitoring and data

assessment/reporting costs for the facility are predicted to be of the order of €20,000 per

year.



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9. FINAL VALIDATION

It will be necessary to ensure independent verification of the closure plan for Pfizer.

Therefore, the following is anticipated:

9.1. EPA Notification

Communication with the EPA at appropriate stages in the planned cessation activities at

Pfizer will be important. In addition to the initial notification to the EPA of cessation of

activities (or part thereof), at an appropriate time towards the end of the closure activities,

WMI will seek written agreement from the EPA on exactly what is required for

independent verification, or validation, of the closure plan for the site.

9.2. Final Validation Audit

Sigma Aldrich Ireland Limited has assumed that the EPA will at least require, for

independent closure plan verification, that a Closure validation Audit will be undertaken

by an independent third party. The key components of that audit will be:

1. That the Closure Validation Audit will take place towards the end of the closure

activities detailed in this CRAMP, or post-completion of the CRAMP. Elements of

the restoration and aftercare plan, depending on what the site investigation

determines, may not at that point be completed but this will be reflected in the

Final Validation Report with plans on managing the restoration and aftercare

plan.

2. The Final Closure Validation Audit will take place within the confines of an exact

audit boundary, which may be the entire site or part thereof;

3. The Final Closure Validation Audit will consist of;

a. Pre-audit preparation, including public records assessment;

b. A detailed site tour;

c. Interviews with management;

d. A detailed documentation review;

e. Preparation of a Final Closure Validation Audit Report.

Assuming that the outcome of the closure audit is successful, the closure audit report will

contain recommendations on any actions outstanding and will be submitted to the EPA

within three months of the execution of the closure plan. The report will also contain a

certificate of completion to the effect that the third party is satisfied that the CRAMP has

been executed as planned and that, subject to any additional actions identified in the

closure audit report, with responsibilities assigned, that Sigma Aldrich Ireland Limited, as

decommissioned, does not pose any significant threat of pollution of the environment.

The cost estimate to undertake an independent closure validation audit is €20,000.



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10. TEST PROGRAM

It is assumed that following completion of decontamination and decommissioning

operations on-site, subsequent compilation of documentation (as previously detailed in

Section 5.0) and submission to the EPA and relevant authorities will be satisfactory to

demonstrate successful implementation of the short-term program.

Further, it is also assumed that any ongoing soil/groundwater remediation and/or

monitoring programs will demonstrate the completion of the long-term program to the

satisfaction of the EPA and relevant authorities, such that a certificate of completion will

be issued following completion of the CRAMP. On this basis, it is assumed that

documentation and communications with the EPA and relevant authorities during the

course of the CRAMP will be sufficient to demonstrate successful completion, and as a

result a test program would not be required.



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11. SUMMARY OF COSTS ASSOCIATED WITH THE CRAMP

This section briefly summarises the costs presented in Sections 7.1 and 7.2 of this report.

The summary is presented in Table 9.1 and includes all costs identified during the

analysis of the Short Term Programme.

Table 9.1 Summary of CRAMP Costs

ITEM DESCRIPTION COST (€)

STP 1 Production decommissioning € 200,000

STP 2 Removal of excess raw materials and final

product from site

€ 52,000

STP 3 Production related hazardous waste disposal € 109,900

STP 4 Production related non-hazardous waste disposal € 11,045

STP 5 Cleaning of tanks, bunds, sumps and interceptors € 160,000

STP 6 Non-process related wastes € 3,000

STP 7 Decommissioning of non-essential site services,

including laboratories

€ 14,000

STP 8 Decommissioning of emissions to air abatement

systems

€ 21,000

STP 9 Decommissioning of the WWTP € 24,000

STP 10 Removal of residual hazardous materials € 2,000

STP 10 Decommissioning of electrical substation,

process water and air compressors

€ 2,000

STP 11 Final Validation Report €20,000

Closure Plan Total (Approximate) € 618,945

LTP 1 Intrusive investigation – diesel spill €6,000

LTP 2 Investigation for potential contamination sources. € 50,000

LTP 3 Source area soil corrective action € 20,000 Note 1

LTP 4 Monitoring of groundwater contamination € 20,000 Note 1

Restoration and Aftercare Total (Approximate) € 96,000

CRAMP TOTAL (Approximate) € 714,945 Note 2

Note 1: As outlined in section 7.2.2, this is a provisional fee and may not actually occur at the time of site

closure.

Note 2: This assumes the upper range of the LTP costs provided.

In conclusion, in the unlikely event of site closure, it has been estimated that

approximately € 714,945 would be required to bring the site to an environmentally safe

condition.



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12. FINANCIAL PROVISIONS

Financial provisions in the event of closure of the facility or part there of are detailed

below. There are two financial provisions that are currently in place at Sigma-Aldrich

Ireland Limited.

12.1. Current Financial Provisions

12.1.1. Existing Insurance Cover

URS cannot provide a strict legal interpretation of the Sigma-Aldrich Ireland Limited

insurance policy but makes the following comments.

Sigma-Aldrich Ireland Limited is covered by Public/Products Liability that includes for

indemnity up to a limit of $12,000,000 any one incident/unlimited any one period. This

policy also extends to cover for pollution/contamination as follows:

Policy covers will indemnify Sigma-Aldrich Ireland Limited arising from their legal liability

for accidental bodily injury or accidental loss or damage to third party property arising out

of the discharge, dispersal, release or escape of smoke, vapours, soots, fumes, Acids,

alkalis, toxic chemicals, liquids or gases, waste materials or other irritants, contaminants

or pollutants into or upon land, the atmosphere or any watercourse or body of water.

Provided such discharge, dispersal, release or escape is sudden and accidental,

unintended and unexpected and must not continue for more than seventy two hours.

Sigma-Aldrich Ireland Limited reviews its insurance and financial arrangements on a

regular basis in order to ensure ongoing and continued adequacy. Any changes or

updates to such arrangements shall be described in CRAMP reviews to be submitted to

the Agency.

12.1.2. Self Insurance through Trading Revenue/Parent Company Funds.

Sigma-Aldrich Corporation, the ultimate parent company of Sigma-Aldrich Ireland Limited

is a US multinational with sales in excess of US$ 2.1 billion in 2009 and net assets

exceeding US$1 billion. The company has the resources to ensure that any financial

commitments that may arise can be met, including those that may arise through

cessation of activities at the site.

Sigma-Aldrich Ireland Limited is a component site of Sigma-Aldrich Corporation. Sigma-

Aldrich Corporation operates a global network of manufacturing sites.

The Sigma-Aldrich Ireland Limited manufacturing site is a cost centre within Sigma-

Aldrich Corporation and is therefore centrally funded from Sigma-Aldrich Corporation

headquarters. The site operates to an agreed annual budget which is set in advance and

which is intended to cover projected expenditure related to site operations for that

financial year.

Sigma-Aldrich Corporation in common with many large multinational companies provides

central funds to its operating units through standard financial mechanisms. The Parent

Company Guarantee recently agreed with the EPA can be found in the Appendix to this

report.


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Appendix A - Parent Company Guarantee

30th March, 2011. - Environmental Protection Agency

Documents

Transcript of 30th March, 2011. - Environmental Protection Agency