APPENDIX B Tables 2(Part 2 of 3) - Department of Justice

2(Part 2 of 3)

Case 2:21-cv-00047-FL Document 3-4 Filed 11/15/21 of 122

of 1

Table 5 1aConstituents in Soil Above Remedial Investigation Screening Levels

Triangle Pacific SiteElizabeth City, North Carolina

Metals

NC PSRGProtection ofGroundwater

(mg/kg)

NC PSRGIndustrial,

Health Based(mg/kg)

EPA Industrial(mg/kg)

Arsenic 5.8 3 3Barium * 44,000 22,000Cadmium * 200 98Cobalt 0.9 70 35Copper * 9,400 4,700Iron 150 100,000 82,000Manganese * 5,200 2,600Lead * 800 800Vanadium 6 1,200 580Zinc * 70,000 35,000SVOCsBenzo(a)anthracene * 2.9 2.9Benzo(a)pyrene * 0.29 0.29Benzo(b)fluoranthene * 2.9 2.9Benzo(k)fluoranthene * 29 29Chrysene * 290 290Dibenz(a,h)anthracene * 0.29 0.29Indeno(1,2,3 cd)pyrene * 2.9 2.9PCBsAroclor 1254 * 1Aroclor 1260 * 1Pesticides4,4 DDT * 8.6 8.6

Notes: mg/kg microgram per kilogram; NC PSRG North Carolina Preliminary Soil Remediation Goal, September2014 (the final ROD will provide constituents in soil above current NC PSRGs); EPA Industrial USEPA Region IIIRisk Based Screening Levels for Industrial Soil, May 2014; PCBs – Polychlorinated Biphenyls; SVOCs – SemiVolatile Organic Compounds; Screening value not available in 2014; * Constituent concentrations ingroundwater did not exceed North Carolina groundwater standards. Cobalt and iron were not identified asconstituents exceeding Industrial NC PSRGs, but were in groundwater above North Carolina groundwaterstandards and in soil above PSRGs for Protection of Groundwater.


of 1

Table 5-1bConstituents in Groundwater Above Remedial Investigation Screening Levels

Triangle Pacific SiteElizabeth City, North Carolina

Metals g/L SourceArsenic 10 NC 2LCobalt 1 NC IMACsIron 300 NC 2LVanadium 0.3 NC IMACs

VOCs g/L Source

1,2-Dichlorobenzene 20 NC 2L1,4-Dichlorobenzene 6 NC 2LTrichloroethene 3 NC 2LVinyl Chloride 0.03 NC 2L

Pesticides g/L SourceTotal Chlordane 0.1 NC 2LDieldrin 0.002 NC 2L

Notes: g/L - microgram per liter; NC 2L - North Carolina groundwater standards identified in 15A NCAC 2L, Last Amended on April 1, 2013; NC IMACs – North Carolina Interim Maximum Allowable Concentrations, Last Amended on April 6, 2018; VOCs - Volatile Organic Compounds.


Table

aSummar

y of

Curren

t SoilA

nalyticalRe

sults

forW

astewater

Treatm

entP

lant

Area

VO

Csan

dSV

OCs

TrianglePa

cific,Elizab

ethCity,N

C

BH19

BH20

BH22

BH23

BH25

BH26

BH14

01BH

1901

SDBH

2001

BH22

01BH

2301

BH24

01BH

2402

BH25

01BH

2601

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

10/25/20

1110

/10/20

1210

/26/20

1110

/9/201

210

/9/201

210

/9/201

210

/9/201

210

/9/201

210

/9/201

2CA

SNum

ber

VOCs

2Bu

tano

ne19

,000

28,000

2,70

05,40

00.12

16<0.00

4<0.01

9<0.01

<0.00

5<0.00

4<0.00

40.00

6J

<0.00

7<0.01

Aceton

e67

641

6,10

010

0,00

067

,000

12,000

0.29

24<0.00

7<0.03

30.38

0.03

20.01

4J

0.04

2J

0.15

J<0.01

2<0.01

6Isop

ropylben

zene

9882

819

027

099

027

00.07

41.3

<0.00

1<0.00

5<0.00

3R

<0.00

1<0.00

1J0.41

J<0.00

2<0.00

2Methylene

chlorid

e75

092

5764

01,00

057

0.00

290.02

3<0.00

2<0.00

90.00

8J

<0.00

3<0.00

2<0.00

2<0.00

2<0.00

4<0.00

5Styren

e10

042

560

087

03,500

870

0.13

0.92

<0.00

1<0.00

50.00

9J

R<0.00

1<0.00

1<0.00

1<0.00

2<0.00

2SV

OCs

1,1'

Biph

enyl

9252

420

404.7

9.4

0.00

086

43<0.19

<0.49

<0.25

0.08

40.05

6<0.02

2<0.02

1<0.02

<1.3

2Methylnaphthalene

9157

630

060

023

460.01

91.6

0.03

10.01

4<0.00

93J

0.77

0.74

0.00

820.01

10.00

46J

0.88

Acen

aphthe

ne83

329

4,50

09,00

035

070

00.55

8.4

<0.00

760.00

25J

<0.00

93J

0.01

9J

0.00

91J

0.00

088J

0.00

16J

<0.00

086.8

Acen

aphthylene

620

896

84,50

035

00.55

210.00

39J

0.01

2<0.00

46J

0.05

20.01

4J

0.02

90.04

50.00

047J

0.53

Acetop

heno

ne98

862

12,000

2,50

078

01,60

00.05

83.5

<0.19

<0.49

<0.25

0.04

3<0.02

<0.02

20.04

J<0.02

<1.3

Anthracene

12012

723

,000

46,000

1,70

03,40

05.8

660

0.00

76J

0.02

1<0.00

46J

0.05

40.01

5J

0.01

30.02

0.00

082J

16Be

nzalde

hyde

10052

712

0,00

01,20

078

01,20

00.04

33

<0.76

<1.9J

<0.99

0.23

<0.07

9J0.11

J0.28

J<0.08

<5.1J

Benzo[a]anthracene

5655

32.9

2.9

0.15

0.15

0.01

20.18

0.01

4J

0.07

0.02

4J

0.21

**0.05

90.02

40.05

20.00

3410

0Be

nzo[a]pyrene

5032

80.29

0.29

0.01

50.01

50.00

40.05

90.01

1J

0.09

1J**

0.02

4J

0.2

0.04

30.04

0.06

30.00

3510

0Be

nzo[b]flu

oranthen

e20599

22.9

2.9

0.15

0.15

0.04

10.6

0.31

J0.14

J0.04

3J

0.38

0.09

0.07

30.09

90.00

7419

0Be

nzo[g,h,i]p

erylen

e19

124

27,80

00.03

6J

0.02

2J

0.01

2J

0.11

0.04

70.01

60.02

0.00

2724

Benzo[k]flu

oranthen

e20

708

97,80

00.08

2J

0.05

2J

0.01

8J

0.15

0.02

60.02

80.05

10.00

3163

bis(2Ethylhexyl)Phthalate

11781

716

016

038

381.3

7.2

739.1

4.4

1.2

0.09

6J

0.52

0.59

668

Carbazole

8674

80.37

<0.19

<0.49

<0.25

0.04

2<0.02

<0.02

2<0.02

1<0.02

4.8

Chrysene

21801

929

029

015

151.2

180.04

80.04

10.02

9J

0.37

0.09

90.04

40.07

10.00

33J

96Dibe

nz[a,h]anthracen

e53

703

0.29

0.29

0.01

50.01

50.01

30.19

0.01

2J

0.00

83J

<0.00

93J

0.04

10.01

5J

0.00

460.00

620.00

093J

11Dibe

nzofuran

13264

910

020

07.2

140.01

55.2

<0.19

<0.49

<0.25

0.18

0.15

<0.02

2<0.02

1<0.02

2.1J

DimethylPhthalate

13111

30.78

J<1.9

<0.99

<0.08

3<0.07

9<0.08

6<0.08

5<0.08

<5.1

dinOctylPh

thalate

11784

082

016

0062

120

5738

R<1.9

<0.99

<0.08

3<0.07

9<0.08

6<0.08

5<0.08

<5.1

Fluo

ranthe

ne20644

03,00

06,00

023

046

08.9

330

0.02

60.08

60.04

7J

0.35

0.07

0.06

50.09

60.00

516

0Fluo

rene

8673

73,00

06,00

023

046

00.54

56<0.00

760.00

25J

0.01

1J

0.03

70.01

8J

<0.00

086

0.00

33<0.00

084.2

Inde

no[1,2,3

cd]pyren

e19

339

52.9

2.9

0.15

0.15

0.24

20.02

8J

0.02

4J

0.01

1J

0.08

50.02

10.01

40.01

80.00

2231

Naphthalene

9120

317

173.8

3.8

0.00

054

0.21

0.03

90.02

9<0.00

93J

0.41

0.49

0.00

60.01

10.00

34J

0.94

Nitrob

enzene

9895

322

225.1

5.1

0.00

0092

<0.19

<0.49

<0.25

<0.02

1<0.02

<0.02

2<0.02

1<0.02

<1.3

Phen

anthrene

8501

868

0.03

10.04

0.01

8J

0.71

0.34

0.02

0.02

80.00

61J

58Ph

enol

10895

225

,000

50,000

1,80

03,60

00.33

0.23

<0.19

1.3

<0.25

<0.02

1<0.02

<0.02

2<0.02

1<0.02

<1.3

Pyrene

12900

02,300

4,600

170

340

1.3

220

0.02

70.13

0.03

5J

0.27

0.07

60.08

90.17

0.00

4215

0Allunitsareinmg/kg.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

PSRG

Prelim

inarySoilRe

med

iatio

nGo

albgs

belowgrou

ndsurface

Screen

ingvalueno

tavailable.

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–

Detectionisgreaterthanthemetho

dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

R–Da

tarejected

durin

gvalidation.

JN–Theanalysisindicatesthe

presen

ceof

ananalytethat

hasb

een“Ten

tativ

elyIden

tified”

andtheassociated

numericalvaluerepresen

tsits

approxim

ateconcen

tration.

NA

Thesamplewas

nota

nalyzedfor the

specificconstitue

nt.

ND–Co

nstitue

ntno

tdetected.Node

tectionlim

itavailable.

UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precise

.An

alyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t.1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance.

2Alph

achlordaneandgammachlordanehave

been

totaledandcomparedto

thechlordanescreen

ingvalues.

3An

alysisforh

exavalen

tchrom

ium

indicatedthat

concen

trations

ofhe

xavalent

chromium

werebe

lowde

tectionlim

itsfora

llsamples.As

such,chromium

atthesite

isassumed

toconsist

prim

arily

oftrivalen

tchrom

ium

andscreen

inglevelsfortriv

alen

tchrom

ium

wereapplied.

4Be

nzo(b)flu

oranthen

eandbe

nzo(k)flu

oranthen

eareun

diffe

rentiatedforthissam

ple.

5Sccreening

levelsfore

ndosulfanused

.6

Noriskbasedscreen

inglevelsexist

fora

cenapthylene

.Risk

basedscreen

inglevelsused

here

arefora

cenapthe

ne.

**Prim

arily,screening

levelsaremoststringent

forthe

Soilto

Grou

ndwater

Category,and

becomelessstrin

gent

forthe

Resid

entia

lSoiland

Indu

stria

lSoilCategories,

respectiv

ely.

Standardsfor

someconstitue

nts,ho

wever,dono

tfollowthispattern.

Assuch,a

detected

valuethat

exceed

sahigher

standard

inalower

Screen

ingCategory

may

beflagged

accordingto

thehighestS

creening

Category

torefle

ctthehighesta

mou

ntof

hazard.

Constitue

ntexceed

sanIndu

stria

lScreening

Level

Constitue

ntexceed

saRe

siden

tialScreening

Level

Constitue

ntexceed

saSoilto

Grou

ndwater

Screen

ingLevel

Wastewater

Treatm

entP

lant

Area

BH24

DuplicatePa

irNCPSRG

Indu

stria

lSoil

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Indu

stria

lSoil1

Analyte/Pa

rameter

BH14

NCPSRG

Soilto

Grou

ndwater

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Soilto

Grou

ndwater

1NCPSRG

Reside

ntialSoil

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Reside

ntialSoil1

1/19

/201

5Page

1of

1I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table10

_Sum

maryof

SoilAn

alyticalRe

sults

forW

astewater

Treatm

entP

lant

Area.xls|

Table10

VOCandSV

OC


Table

2b Summaryof

Curren

tSoilA

nalyticalRe

sults

forW

astewater

Treatm

entP

lant

Area

Pe

sticides/PCB

s/Metals/Cyan

ide

TrianglePa

cific,Elizab

ethCity,N

C

BH18

BH19

BH20

BH22

BH23

BH25

BH26

BH14

01BH

1402

BH14

03BH

1501

BH15

02BH

1503

BH16

01BH

1602

BH16

03BH

1701

BH17

02BH

1703

BH18

01BH

1901

SDBH

2001

BH22

01BH

2301

BH24

01BH

2402

BH25

01BH

2601

00.5'bgs

12'bgs

24'bgs

00.5'bgs

12'bgs

24'bgs

00.5'bgs

12'bgs

24'bgs

00.5'bgs

12'bgs

24'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

00.5'bgs

10/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/25/20

1110

/24/20

1110

/24/20

1110

/24/20

1110

/26/2011

10/10/20

1210

/26/20

1110

/9/201

210

/9/201

210

/9/201

210

/9/201

210

/9/201

210

/9/201

2CA

SNum

ber

Pesticides

44DD

D72

548

9.6

9.6

2.2

20.0072

0.24

<0.01

9<0.00

039

<0.00

039

0.02

7JN

<0.00

039

<0.00

041

0.00

3JN

0.19

0.00

960.00

14J

<0.00

039

<0.00

04<0.01

3<0.03

2<0.00

930.03

8<0.00

039

0.00

390.00

430.00

430.14

J44DD

E72

559

6.8

6.8

1.6

1.6

0.054

0.24

0.26

0.01

10.00

31JN

0.24

0.00

067J

0.00

15J

0.04

60.26

0.01

60.00

24JN

0.00

051J

<0.00

041.8

0.12

00.08

50.8

0.00

370.02

20.02

70.01

92.6

44DD

T50

293

8.6

8.6

1.9

1.9

0.077

0.34

<0.01

9<0.02

4<0.00

390.34

0.00

098J

0.00

220.05

90.53

0.01

80.00

19J

<0.00

039

<0.00

045.5

<0.05

0<0.09

30.22

<0.00

039

0.03

10.03

80.04

53.9

alph

aBH

C31

984

60.37

0.37

0.08

50.08

50.00

0041

0.00

036

<0.00

97<0.00

02<0.00

02<0.00

2<0.00

02<0.00

021

<0.00

019

<0.00

022

<0.00

021

<0.00

022

<0.00

02<0.00

020.13

<0.00

25<0.00

024

<0.00

021

<0.00

02<0.00

022

<0.00

022

<0.00

020.01

9JN

Aldrin

30900

20.14

0.14

0.03

10.03

10.00

075

0.00

33<0.03

40.00

35J

0.00

58<0.01

<0.00

02<0.00

021

0.00

036J

0.00

23J

<0.00

021

<0.00

022

<0.00

02<0.00

020.49

JN<0.00

250.00

17<0.00

021

<0.00

02<0.00

022

<0.00

022

<0.00

020.02

3JN

alph

aCh

lordane

5103

719

----

--<0.00

97<0.00

02<0.00

020.03

4<0.00

02<0.00

021

0.00

044J

0.03

10.00

23<0.00

11<0.00

02<0.00

02<0.00

680.00

58J

<0.00

81<0.00

021

<0.00

02<0.00

022

0.00

065J

<0.00

020.03

8J

gammaCh

lordane

5103

742

0.15

0.00

72<0.00

2<0.00

2<0.00

020.00

043J

0.00

12J

0.03

60.00

25<0.00

022

<0.00

02<0.00

021.2

<0.00

760.02

60.00

31J

0.00

099

<0.00

022

<0.00

022

<0.00

02<0.03

1TotalChlordane

5774

98

81.8

1.8

0.01

50.06

8<0.23

<0.00

48<0.00

48<0.04

8<0.00

47<0.00

490.00

6J

0.17

0.01

5J

<0.00

52<0.00

47<0.00

48<0.16

<0.05

8<0.00

56<0.07

<0.00

47<0.00

52<0.00

51<0.00

48<0.38

delta

BHC

31986

8<0.02

6<0.00

054

0.00

067J

<0.00

54<0.00

053

<0.00

055

<0.00

052

0.00

12<0.00

055

<0.00

058

<0.00

053

<0.00

054

0.04

9<0.00

650.00

38<0.00

056

<0.00

053

<0.00

058

<0.00

057

<0.00

054

<0.00

68Dieldrin

6057

10.14

0.14

0.03

30.03

30.00

0069

0.00

081

<0.01

9<0.00

150.00

84JN

<0.00

4<0.00

039

<0.00

041

<0.00

19<0.00

043

<0.00

040.00

19J

<0.00

039

<0.00

04<0.31

<0.00

48<0.00

63<0.00

065

<0.00

04<0.00

053

0.00

044J

<0.00

04<0.09

5Endo

sulfanI5

95998

849

098

037

740.14

5.6

<0.01

30.00

087J

<0.00

32<0.00

26<0.00

026

0.00

035J

<0.00

025

0.00

23JN

0.00

033J

<0.00

11<0.00

026

<0.00

026

0.14

<0.00

32<0.00

031

<0.00

027

<0.00

026

<0.00

028

<0.00

028

<0.00

026

<0.00

33

Endo

sulfanII5

3321

365

949

098

037

740.14

5.6

<0.01

9<0.00

039

<0.00

039

<0.00

4<0.00

039

<0.00

041

0.00

078J

<0.00

043

<0.00

04<0.00

043

<0.00

039

<0.00

04<0.01

3<0.00

48<0.00

046

<0.00

041

<0.00

057

0.00

089J

<0.00

042

<0.00

04<0.00

81Endo

sulfanSulfate

1031

078

490

370.14

8<0.09

7<0.00

20.00

73JN

0.02

7JN

0.00

074J

<0.00

041

<0.00

190.00

81JN

<0.00

210.00

12J

<0.00

039

<0.00

04<0.28

<0.00

48<0.00

78<0.00

041

<0.00

039

<0.00

043

<0.00

042

<0.00

040.02

9J

Endrin

7220

825

501.8

3.6

0.92

0.81

<0.01

9<0.02

<0.00

039

0.06

4JN

<0.00

039

<0.00

041

0.00

38JN

0.01

3J

<0.00

21<0.00

043

<0.00

039

<0.00

04<0.01

3<0.00

73<0.01

9<0.00

820.00

24<0.00

043

<0.00

042

<0.00

04<0.05

EndrinAlde

hyde

7421

934

<0.01

9<0.00

25<0.00

039

<0.02

<0.00

039

<0.00

041

<0.00

038

<0.00

043

0.00

062J

<0.00

043

<0.00

039

<0.00

040.47

<0.00

48<0.00

450.00

28JN

0.00

15J

<0.00

043

<0.00

042

<0.00

04<0.01

4EndrinKe

tone

5349

470

5<0.03

4<0.00

071

0.00

22JN

<0.00

72<0.00

071

<0.00

074

<0.00

069

0.00

34JN

<0.00

073

<0.00

077

<0.00

07<0.00

072

<0.14

<0.00

87<0.00

61<0.00

075

<0.00

071

<0.00

077

<0.00

076

<0.00

072

<0.00

9He

ptachlor

7644

80.51

0.51

0.12

0.12

0.00

016

0.00

66<0.00

97<0.00

02<0.00

02<0.00

2<0.00

02<0.00

021

<0.00

019

<0.00

022

<0.00

021

<0.00

022

<0.00

02<0.00

02<0.00

68<0.00

25<0.00

12<0.00

150.00

052J

<0.00

022

<0.00

022

<0.00

020.01

JHe

ptachlor

Epoxide

1024

573

0.25

0.25

0.05

90.05

90.00

0078

0.00

082

<0.04

7<0.00

02<0.00

099

<0.00

2<0.00

02<0.00

021

<0.00

019

<0.00

022

0.00

042J

0.00

072J

0.00

024J

<0.00

02<0.03

3<0.01

8<0.00

12<0.00

021

<0.00

02<0.00

022

<0.00

022

<0.00

079

<0.06

1Lind

ane

5889

92.5

2.5

0.56

0.56

0.00

024

0.00

18<0.00

97<0.00

02<0.00

020.00

98J

<0.00

02<0.00

021

<0.00

095

<0.00

11<0.00

021

<0.00

022

<0.00

02<0.00

02<0.00

68<0.00

250.00

042J

<0.00

036

<0.00

023

<0.00

022

<0.00

022

<0.00

02<0.00

56PC

BsAroclor12

5411

09769

11

0.24

0.01

8.8

0.66

10.73

<0.00

39<0.00

40.09

5J

0.57

JN0.05

8<0.00

42<0.00

38<0.00

411

01.7

0.41

J<0.02

1<0.00

39<0.00

43<0.00

420.03

1J

<1.5

Aroclor12

6011

09682

51

0.24

0.02

7<0.37

<0.02

<0.03

90.38

J<0.00

39<0.00

4<0.01

9<0.02

10.02

40.01

J<0.00

38<0.00

4<3.3

<0.14

0<0.11

<0.11

<0.00

58<0.00

63<0.00

630.02

3J

<0.4

Metals

Alum

inum

7429

905

110,00

010

0,00

07,70

015

,000

3,00

028

,200

39,200

15,100

16,900

37,900

37,500

16,400

19,300

36,600

J19

,000

18,300

19,400

17,100

12,000

J19

,800

21,700

J25

,000

J21

,300

J25

,200

J15

,900

J17

,900

JAn

timon

y7440

360

4794

3.1

6.2

0.035

0.9

0.15

5J

<0.08

71UJ

<0.08

64UJ

0.39

4J

<0.08

69UJ

<0.08

67UJ

<0.08

39UJ

0.76

9J

0.17

8J

0.30

1J

<0.08

59UJ

<0.08

88UJ

14.5J

5.49

J()

0.56

4J

0.62

8J()

0.08

54J()

0.12

4J()

0.09

18J()

<0.07

91J

2.11

J()

Arsenic

7440

382

33

0.67

0.67

0.00

155.8

5.68

J5.04

J7.8J**

6.97

J**

4.19

J2.62

J4.71

J21

.6J**

6.79

J**

6.05

J**

4.8J

3.77

J12

7J**

4.14

3.77

J8.44

**6.02

**3.72

3.7

3.13

30**

Bariu

m74

4039

322

,000

44,000

1,50

03,00

016

580

161J

156J

59.4J

123J

132J

84.3J

51.9J

52.9J

128J

120J

95.9J

89.6J

507

97.3

117

142

79.7

62.4

65.5

34.7

329

Beryllium

7440

417

230

460

1632

1.9

631.08

J0.88

6J

0.56

9J

0.71

2J

0.84

8J

0.52

8J

0.40

8J

0.44

J0.78

2J

0.88

7J

0.74

J0.68

4J

0.39

5J

0.28

1J

0.49

3J

1.11

0.52

60.38

20.43

90.27

30.92

1Cadm

ium

7440

439

9820

07

140.06

93

<0.04

96<0.05

18<0.05

140.63

4J

<0.05

17<0.05

15<0.04

990.09

63J

0.17

J0.19

8J

<0.05

11<0.05

2860

.6J

3.19

1.08

J0.91

30.02

47J

0.09

39J

0.06

98J

0.09

77J

1.97

Calcium

7440

702

1,17

0J

1,62

0J

1,40

0J

1,18

00J

2,31

0J

3,04

0J

555J

586J

807J

5,16

0J

1,98

0J

1,58

0J

14,500

J5,12

02,91

0J

3000

486

748

659

952

1690

0Ch

romium

316

06583

118

0,00

010

0,00

012

,000

24,000

4,00

0,00

036

0,00

054

.9J

43.9J

35.7J

28.8J

38.9J

40.1J

26.2J

91J

45.2J

27.7J

27J

21.5J

250J

36.6

30.8J

25.8

22.7

25.1

22.1

1639

.5Co

balt

7440

484

3570

2.3

4.6

0.027

0.9

4.12

53.24

3.21

4.24

4.01

2.88

3.44

4.54

3.44

2.95

3.25

10.8

2.66

J2.94

5.2

3.36

3.02

3.25

3.09

4.14

Copp

er74

4050

84,70

09,40

031

062

02.8

700

12J

10.7J

10.5J

22.1J

8.25

J11

.3J

7.78

J38

J13

.7J

9.77

J6.47

J5.91

J64

913

363

.732

.86.34

4.69

4.67

6.09

66Iro

n74

3989

682

,000

100,00

05,50

011

,000

3515

015

,400

17,100

13,800

13,500

15,000

14,400

12,500

21,800

22,300

16,000

11,200

11,400

357,00

011

,900

15,600

11,900

11,900

11,700

11,400

7,04

012

,700

Lead

7439

921

800

800

400

400

270

85.3

20.3

37.3

90.3

13.7

11.8

9.91

562

84.2

30.5

9.58

7.89

685

257

157

92.5

14.4

49.2

298.25

496

Magne

sium

7439

954

2,02

0J

2,92

0J

2,15

0J

1,80

0J

1,92

0J

3,47

0J

1,55

0J

2,13

0J

1,82

0J

1,44

0J

2,06

0J

2,10

0J

3,47

01,09

02,28

01,81

01,61

01,53

01,48

01,71

03,55

0Mangane

se74

3996

52,60

05,20

018

036

02.8

6513

611

689

.119

090

.678

.167

.866

.386

.918

112

112

711

1086

.871

.815

667

.564

.764

.895

.735

6Mercury

7439

976

43.1

0.94

1.9

0.33

10.29

30.08

15J

0.08

2J

0.14

7J

0.05

26J

0.03

45J

0.04

41J

0.55

80.07

34J

0.06

97J

0.04

24J

0.01

83J

0.28

9J

0.14

8J

0.21

1J

0.31

40.04

51J

0.06

55J

0.06

79J

0.02

91J

0.37

9Nickel

7440

020

2,20

04,40

015

030

02.6

130

19.9J

22.8J

17.2J

12.5J

20.8J

19.6J

13.9J

16.5J

23.2J

14.6J

13.2J

11.9J

182J

16.5

20.8J

14.3

11.5

11.1

11.2

9.09

16.1

Potassium

7440

097

1,26

0J

1,46

0J

1,35

0J

1,45

0J

1,34

0J

1,27

0J

979J

1,12

0J

1,32

0J

1,27

0J

1,02

0J

764J

1,10

0J

635

1,27

0J

1,06

083

581

485

774

11,31

0Selenium

7782

492

580

1,20

039

780.05

22.1

0.42

2J

0.15

9J

0.13

4J

0.39

1J

0.18

1J

0.16

6J

0.17

5J

0.35

9J

0.42

7J

0.44

5J

0.21

1J

0.22

J0.48

6J

0.31

6J

0.40

7J

0.69

4J

0.51

5J

0.36

9J

0.41

4J

0.11

7J

0.35

8J

Silver

7440

224

580

1,20

039

780.08

3.4

0.02

85J

0.02

99J

0.02

14J

0.09

67J

0.03

65J

<0.01

660.02

23J

0.06

16J

0.03

13J

0.05

98J

0.03

7J

0.04

67J

2.92

J1.2

0.19

7J

0.24

50.02

56J

0.03

56J

0.02

57J

<0.02

40.81

6Sodium

7440

235

117

303

309

129

158

250

58.2J

66.2J

81J

127

120

321

2,86

040

.5J

151

104

53.7J

45.4J

41.6J

37.6J

144

Thallium

7440

280

1.2

2.4

0.07

80.16

0.00

140.28

0.25

60.21

6J

0.11

7J

0.18

6J

0.19

6J

0.16

9J

0.11

7J

0.13

2J

0.26

10.19

7J

0.15

5J

0.14

6J

0.10

7J

<0.08

750.20

8J

0.20

4J*

*0.18

4J*

*0.17

9J*

*0.21

J**

0.08

26J*

*0.17

J**

Vanadium

7440

622

580

1,20

039

788.6

640

.6J

49.3J

37.6J

27J

42.6J

47.3J

30J

34.8J

54.2J

33.1J

30.2J

24.9J

25.7J

18.2J

24.1J

27.6J

27.8J

27.6J

27.8J

17.7J

39.7J

Zinc

7440

666

35,000

70,000

2,300

4,600

3712

0065

.4J

34.2J

24.4J

2,65

0J

41.2J

53.1J

27.2J

62.7J

76.8J

41.2J

21.5J

24.6J

3,57

01,21

015

619

951

48.1

44.1

38.5

1,40

0Cyan

ide

Cyanide

5712

513

262.1

4.2

0.00

1514

<0.2

<0.21

<0.21

0.23

J<0.21

<0.21

<0.21

0.62

J0.22

J<0.22

<0.2

<0.21

0.77

J0.56

0J

<0.25

0.24

J<0.21

<0.23

<0.23

<0.21

0.4J

Allunitsareinmg/kg.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

PSRG

Prelim

inarySoilRe

med

iatio

nGo

albgs

belowgrou

ndsurface

Screen

ingvalueno

tavailable.

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–


dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

.R–Da

tarejected

durin

gvalidation.

JN–Theanalysisindicatesthe

presen

ceof

ananalytethat

hasb

een“Ten

tativ

elyIden

tified”

andtheassociated

numericalvaluerepresen

tsits

approxim

ateconcen

tration

NA

Thesamplewas

nota

nalyzedforthe

specificconstitue

nt.

ND–Co

nstitue

ntno

tdetected.Node

tectionlim

itavailable.

UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precise

.An

alyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t.1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance.

2Alph

achlordaneandgammachlordanehave

been

totaledandcomparedto

thechlordanescreen

ingvalues.

3An

alysisforh

exavalen

tchrom

ium

indicatedthat

concen

trations

ofhe

xavalent

chromium

werebe

lowde

tectionlim

itsfora

llsamples.As

such,chromium

atthesite

isassumed

toconsist

prim

arily

oftrivalen

tchrom

ium

andscreen

inglevelsfortriv

alen

tchrom

ium

wereapplied.

4Be

nzo(b)flu

oranthen

eandbe

nzo(k)flu

oranthen

eareun

diffe

rentiatedforthissam

ple.

5Sccreening

levelsfore

ndosulfanused

.6

Noriskbasedscreen

inglevelsexist

fora

cenapthylene

.Risk

basedscreen

inglevelsused

here

arefora

cenapthe

ne.

**Prim

arily,screening

levelsaremoststringent

forthe

Soilto

Grou

ndwater

Category,and

becomelessstrin

gent

forthe

Resid

entia

lSoiland

Indu

stria

lSoilCategories,

respectiv

ely.

Standardsfor

someconstitue

nts,ho

wever,dono

tfollowthispattern.

Assuch,a

detected

valuethat

exceed

sahigher

standard

inalower

Screen

ingCategory

may

beflagged

accordingto

thehighestS

creening

Category

torefle

ctthehighesta

mou

ntof

hazard.

Constitue

ntexceed

sanIndu

stria

lScreening

Level

Constitue

ntexceed

saRe

siden

tialScreening

Level

Constitue

ntexceed

saSoilto

Grou

ndwater

Screen

ingLevel

BH16

DuplicatePa

ir

Wastewater

Treatm

ent P

lant

Area

BH24

BH17

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Reside

ntialSoil1

NCPSRG

Indu

stria

lSoil

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Indu

stria

lSoil1

Analyte/Pa

rameter

BH14

BH15

NCPSRG

Soilto

Grou

ndwater

USEPA

Region

IIIRisk

Based

Screen

ingLevels

Soilto

Grou

ndwater

1NCPSRG

Reside

ntialSoil

1/19

/201

5Page

1of

1I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table10

_Sum

maryof

SoilAn

alyticalRe

sults

forW

astewater

Treatm

entP

lant

Area.xls|

Table10

PestMetals


Well

GroundSurfaceElevation(ft msl)

TOCElevation(ft msl)

Elevationto Zero(ft msl)

Total WellDepth fromGround

Surface (ft)

ScreenedInterval(ft bgs)

WellDiameter

(in)Material ofConstruction

MW 1 5.32 7.82 N/A 15 5 15 2 PVCMW 1D 5.34 8.00 N/A 35 25 35 2 PVCMW 2 5.24 7.56 N/A 15 5 15 2 PVCMW 3 5.18 7.55 N/A 15 5 15 2 PVCMW 3D 5.28 8.00 N/A 35 25 35 2 PVCMW 4 5.10 7.23 N/A 15 5 15 2 PVCMW 5 5.60 7.93 N/A 15 5 15 2 PVCMW 6 5.23 7.44 N/A 15 5 15 2 PVCMW 7 8.50 11.26 N/A 15 5 15 2 PVCMW 8 4.25 6.99 N/A 15 5 15 2 PVCMW 9 7.25 9.97 N/A 15 5 15 2 PVCMW 10 6.14 9.12 N/A 15 5 15 2 PVCMW 11 4.99 7.89 N/A 15 5 15 2 PVCMW 12 5.26 8.13 N/A 15 5 15 2 PVCMW 13 6.09 8.82 N/A 15 5 15 2 PVCMW 14 5.34 5.02 N/A 15 5 15 2 PVCMW 15 5.03 8.10 N/A 15 5 15 2 PVCMW 15D 5.03 7.59 N/A 35 25 35 2 PVCMW 16 4.79 7.45 N/A 15 5 15 2 PVCMW 16D 4.79 7.18 N/A 35 25 35 2 PVCStaff Gauge 0.58

ft bgs Feet below ground surfacein Inches

Measurements not available for staff gaugeft msl Feet above mean sea level

12/5/2014 Page 1 of 1I:\Viacom Triangle.10679\47733.Revisions To Ri\Docs\Reports\RI\RI Report\Tables 11 2014\

Table 1 Well Construction Summary.xls

Table 5-3 Well Construction SummaryTriangle Pacific Site

Elizabeth City, North Carolina


Table

4Summaryo

fGroun

dwater

Elevations

TrianglePa

cific,Elizab

ethCity,N

C

11/1/201

111

/4/201

11/30

/201

22/3/20

1210

/18/20

1211

/1/201

28/18

/201

411

/1/201

111

/4/201

11/30

/201

22/3/20

1210

/18/20

1211

/1/201

28/18

/201

4MW

18.02

7.95

5.94

6.08

9.13

6.70

8.96

0.20

0.13

1.88

1.74

1.31

1.12

1.14

MW

1D6.91

9.08

1.09

1.08

MW

27.72

7.67

5.72

5.81

8.82

6.48

8.52

0.16

0.11

1.84

1.75

1.26

1.08

0.96

MW

37.96

7.83

5.74

5.84

9.19

6.61

9.16

0.41

0.28

1.81

1.71

1.64

0.94

1.61

MW

3D6.71

9.32

1.29

1.32

MW

4N/A

17.52

4.60

4.60

N/A

1N/A

1N/A

1N/A

10.29

2.63

2.63

N/A

1N/A

1N/A

1

MW

57.92

7.66

7.34

7.49

8.39

7.59

8.55

0.01

0.27

0.59

0.44

0.46

0.34

0.62

MW

67.45

7.46

6.60

6.61

8.46

6.88

8.82

0.01

0.02

0.84

0.83

1.02

0.56

1.38

MW

711

.35

11.24

10.38

10.29

12.11

11.32

11.75

0.09

0.02

0.88

0.97

0.85

0.06

0.49

MW

87.17

7.02

5.35

5.37

8.28

6.23

8.82

0.18

0.03

1.64

1.62

1.29

0.76

1.83

MW

910

.10

9.96

8.40

8.37

11.16

9.29

11.01

0.13

0.01

1.57

1.60

1.19

0.68

1.04

MW

109.27

9.14

8.34

8.30

10.05

9.00

NA3

0.15

0.02

0.78

0.82

0.93

0.12

NA3

MW

117.87

7.66

7.24

7.35

8.40

7.72

8.65

0.02

0.23

0.65

0.54

0.51

0.17

0.76

MW

128.09

7.94

7.39

7.42

8.69

8.07

9.07

0.04

0.19

0.74

0.71

0.56

0.06

0.94

MW

139.03

8.98

6.91

7.04

10.32

7.69

10.23

0.21

0.16

1.91

1.78

1.50

1.13

1.41

MW

14N/A

15.11

3.43

2.68

6.06

4.25

5.32

N/A

20.09

1.59

2.34

1.04

0.77

0.30

MW

156.47

6.03

1.63

2.07

MW

15D

6.05

8.57

1.54

0.98

MW

166.44

9.07

1.01

1.62

MW

16D

6.19

8.67

0.99

1.49

StaffG

auge

NM

NM

0.80

0.08

1.44

NM

1.44

Measuremen

tsno

tavailableforstaffgauge

1MW

4was

nota

ccessib

leon

11/1/11,10

/18/12

and11

/1/12

2MW

14was

nota

ccessib

leon

11/1/11

3MW

10was

unableto

belocatedon

8/18

/201

4NM

Not

Measured

ftmslfeet

meanseallevel

Well

WellsNot

Installed.

WellN

otInstalled.

WellN

otInstalled.

WellsNot

Installed.

Depthto

Water

BelowTo

pof

Casing

(ft)

Water

LevelElevatio

n(ft

msl)

WellN

otInstalled.

WellN

otInstalled.

1/19

/201

5Page

1of

1I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table2

Summaryof

Grou

ndwater

Elevations.xls


Table

Grou

ndwater

TrianglePa

cific,Elizab

eth,

City,N

C

MW

1MW

01D

MW

3MW

13MW

15MW

15D

MW

16MW

16D

10/29/20

1210

/29/20

1210

/30/20

1210

/30/20

1210

/30/20

1210

/31/20

1210

/31/20

1210

/30/20

1210

/31/20

1210

/31/20

12

Analyte/Pa

rameter

CASNum

ber

VOCs

1,1Dichloroethylene

7535

435

028

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

0.9J

<0.8

<0.8

1,2Dichlorobe

nzen

e95

501

2030

<0.7

3J

3 816

017

0<0.7

<0.7

50<0.7

<0.7

1,3Dichlorobe

nzen

e54

173

120

0<1

<1

1J

4J

4J

<1

<1

<1

<1

<1

1,4Dichlorobe

nzen

e10646

76

0.48

<1

<1

3J

1212

<1

<1

3J

<1

<1

Aceton

e67

641

6,00

014

00<6

<6

<6

<6

<6

<6

7J

17J

<6

<6

cis1,2Dichloroethylene

15659

270

3.6

<0.8

<0.8

3J

3J

3J

<0.8

<0.8

14<0.8

<0.8

trans1,2Dichloroethylene

15660

510

036

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

4J

<0.8

<0.8

Trichloroe

thylen

e79

016

30.49

<1

<1

110

250

250

<1

<1

180

<1

<1

VinylChloride

7501

40.03

0.01

9<1

<1

<1

<1

<1

<1

<1

1J

<1

<1

SVOCs

4Methylphe

nol

10644

540

190

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

1<0.5

<0.5

<0.5

Metals

Alum

inum

7429

905

2,00

011

0J

<6.5

<6.5

<6.5

<6.5

103

435

622

274

279

Arsenic

7440

382

100.05

22.6J

41.4

<0.4

<0.4

<0.4

0.58

1.7J

0.98

J1.2

1.1

Bariu

m74

4039

370

038

030

.611

.231

.615

13.4

50.6

21.8

32.4

40.7

16.6

Beryllium

7440

417

42.5

<0.02

5<0.02

5<0.02

5<0.02

5<0.02

5<0.02

5<0.02

50.04

9J

<0.02

5<0.02

5Cadm

ium

7440

439

20.92

0.51

J<0.08

2<0.08

2<0.08

2<0.08

2<0.08

20.09

4J

0.09

4J

<0.08

2<0.08

2Calcium

7440

702

2000

20,200

J12

,900

J28

,200

J10

,800

J11

,000

J77

,400

15,900

J26

,500

J28

,700

13,700

Chromium

7440

473

10.78

0.65

J<0.5

<0.5

<0.5

<0.5

0.51

0.67

J1.3J

0.63

1.1

Cobalt

7440

484

100.05

2<0.66

6J

1 .2J

1.6J

1.5J

<0.66

4.6J

13.2

12.5

11.1

Copp

er74

4050

870

038

06.7

<0.4

<0.4

<0.4

<0.4

1.9

0.6J

0.52

J1.6

1.4

Iron

7439

896

300

1,40

061

1J

1070

0J

12.1J

27.6J

22.3J

110

1720

J57

2J

502

430

Lead

7439

921

150.51

J<0.03

4<0.03

40.19

J<0.03

40.19

0.25

J0.3J

0.31

0.30

Magne

sium

7439

954

2900

J71

00J

1630

0J

5390

J53

20J

2180

078

60J

1310

0J

1590

070

20Mangane

se74

3996

550

4330

019

7015

083

.784

.310

751

337

619

7046

9Mercury

7439

976

10.06

3<0.07

<0.07

0.09

J<0.07

<0.07

<0.07

0<0.07

<0.07

<0.16

<0.07

0Nickel

7440

020

100

391.2J

0.79

J2J

1.7J

1.3J

0.77

1.6J

6.2

2.3

5.9

Potassium

7440

097

4,15

084

62,03

01,61

01,58

03,22

01,43

02,48

02,50

01,61

0Selenium

7782

492

2010

1.8J

<0.5

0.95

J0.59

J0.63

J0.99

<0.5

<0.5

<0.50

1.1

Sodium

7440

235

8,97

0J

16,000

J29

,500

J21

,700

J21

,000

J40

,100

2320

0J

3240

0J

1710

022

700

Vanadium

7440

622

0.3

8.6

3.3

<0.15

1.3

0.59

J0.96

J1.9

1.3

2.3

1.5

1.5

Zinc

7440

666

1,00

060

08J

12.7J

3.7J

15J

9.7J

6.7

5.8J

5.1J

12.7

9.8

Allvaluesa

rein

g/L.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

IMAC

Interim

Maxim

umAllowableCo

ncen

tration.

Screen

ingvalueno

tavailable

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–


dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

.UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precise

Analyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t.1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance

2Screen

inglevelsfore

ndosulfanused

.End

osulfan02

Linclud

esamixture

ofalph

aandbe

taiso

mers.

3Screen

inglevelsforchlordane

used

.4

Screen

inglevelsfore

ndrin

used

.NC1

502

Llevelsinclud

een

drin,end

rinalde

hde,anden

drinketone

.Theresultexceed

sthe

North

CarolinaGrou

ndwater

QualityStandardsa

ndIM

ACs.

Theresultexceed

sthe

USEPA

RSLfortapwater.

MW

03D

DuplicatePa

ir

North

Carolin

aGrou

ndwater

Qua

lityStan

dards

andIM

ACs

USEPA

Region

alScreen

ingLevel

forT

apwater

1

1/19

/201

5Page

1of

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Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table13

Summaryof

Grou

ndwater

AnalyticalRe

sults

2012

.xlsx

|Oct20

12


TrianglePa

cific,Elizab

ethCity,N

C

MW

01MW

02MW

03MW

04MW

05MW

06MW

07MW

08MW

09MW

10MW

11MW

12MW

13MW

14

2/2/20

122/2/20

122/2/20

122/2/20

121/30

/201

21/30

/201

21/31

/201

21/31

/201

21/31

/201

21/30

/201

22/1/20

122/1/20

122/1/20

122/1/20

122/2/20

12An

alyte/Pa

rameter

CASNum

ber

DuplicatePa

irVO

Cs1,2Dichlorobe

nzen

e95

501

2030

<0.7

<0.7

22<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

1,3Dichlorobe

nzen

e54173

120

0<1

<1

2J

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

1,4Dichlorobe

nzen

e10

646

76

0.48

<1

<1

4J

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

2Bu

tano

ne78

933

4,00

056

0<3

<3

<3

<3

<3

<3

<3

<3

<3

<3

<3

2624

<3

<3

Aceton

e67

641

6,00

01,40

0<6

<6

<6

<6

<6

<6

<6

<6

<6

<6

<6

2827

<6

<6

Chloroform

6766

370

0.22

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

1J

<0.8


15659

270

3.6

<0.8

<0.8

1J

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

Trichloroe

thylen

e79

016

30.49

<1

<1

99<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

SVOCs

4Methylphe

nol

10644

540

190

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

<0.5

0.6J

1315

<0.5

<0.5

2Methylnaphthalene

9157

630

3.6

<0.00

96<0.00

96<0.00

96<0.00

96<0.00

960.01

7J

0.01

2J

<0.00

96<0.00

960.01

8J

<0.00

95<0.00

95<0.00

95<0.00

950.01

5J

Acen

aphthe

ne83

329

8053

<0.00

96<0.00

96<0.00

96<0.00

96<0.00

96<0.00

97<0.00

96<0.00

96<0.00

96<0.00

970.01

5J

0.12

0.11

<0.00

950.33

Anthracene

12012

72,00

018

0<0.00

96<0.00

960.01

1J

<0.00

96<0.00

96<0.00

97<0.00

96<0.00

96<0.00

96<0.00

97<0.00

95<0.00

95<0.00

95<0.00

950.08

8Fluo

ranthe

ne20

644

030

080

<0.00

96<0.00

96<0.00

96<0.00

96<0.00

96<0.00

97<0.00

96<0.00

96<0.00

96<0.00

97<0.00

95<0.00

95<0.00

95<0.00

950.08

2Fluo

rene

8673

730

029

<0.00

96<0.00

96<0.00

96<0.00

96<0.00

960.01

1J

<0.00

96<0.00

96<0.00

960.01

6J

0.06

60.13

0.08

8<0.00

950.15

Naphthalene

9120

36

0.17

0.05

80.11

0.04

1J

0.03

8J

0.06

10.1

0.04

80.08

70.06

0.1

0.09

70.04

J0.05

20.03

5J

0.09

3Ph

enanthrene

8501

820

0<0.02

9<0.02

9<0.02

9<0.02

9<0.02

9<0.02

9<0.02

9<0.02

9<0.02

9<0.02

90.04

6J

0.06

40.05

9<0.02

90.27

Pyrene

12900

020

012

<0.00

96<0.00

96<0.00

96<0.00

96<0.00

96<0.00

97<0.00

96<0.00

96<0.00

96<0.00

97<0.00

95<0.00

95<0.00

95<0.00

950.05

3Pe

sticides

44DD

D72

548

0.1

0.031

<0.00

48<0.00

47<0.00

48<0.00

48<0.00

47<0.00

48<0.00

48<0.00

48<0.00

48<0.00

490.00

55J

<0.00

47<0.00

47<0.00

48<0.00

48Aldrin

30900

20.00

20.00

46<0.00

19<0.00

19<0.00

19<0.00

19<0.00

190.00

61J

<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19UJ

<0.00

19<0.00

19<0.00

19alph

aCh

lordane

5103

719

<0.00

190.38

<0.00

19<0.00

190.00

31J

<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19UJ

0.00

29J

<0.00

19<0.00

19gammaCh

lordane

5103

742

<0.00

077

0.18

<0.00

076

<0.00

076

<0.00

16<0.00

09<0.00

077

<0.00

077

<0.00

076

<0.00

11<0.00

24<0.00

41UJ

<0.00

23<0.00

96<0.00

077

TotalChlordane

1278903

60.1

0.22

<0.15

2.4

<0.15

<0.15

<0.15

<0.15

<0.15

<0.15

<0.15

<0.16

<0.15

<0.15

UJ

<0.15

<0.15

<0.15

Dieldrin

6057

10.00

20.00

17<0.00

510.01

1J

<0.00

51<0.00

51<0.00

5<0.00

51<0.00

51<0.00

51<0.00

51<0.00

51<0.00

51<0.00

5UJ

<0.00

5<0.00

51<0.00

51Endo

sulfanI2

95998

840

10<0.00

410.05

7<0.00

41<0.00

41<0.00

41<0.00

41<0.00

41<0.00

41<0.00

41<0.00

42<0.00

41<0.00

41UJ

<0.00

41<0.00

41<0.00

41EndrinKe

tone

453

49470

52

0.23

<0.00

48<0.00

47<0.00

48<0.00

48<0.00

47<0.00

48<0.00

48<0.00

48<0.00

48<0.00

49<0.00

48<0.00

47UJ

0.00

61J

<0.00

48<0.00

48He

xachlorobe

nzen

e11

874

10.02

0.04

9<0.00

29<0.00

280.00

34J

<0.00

29<0.00

28<0.00

29<0.00

29<0.00

29<0.00

29<0.00

29<0.00

29<0.00

28UJ

<0.00

28<0.00

29<0.00

29PC

BsAroclor12

4812

67229

60.5

0.03

4<0.09

60.39

J<0.09

5<0.09

5<0.09

4<0.09

4<0.09

5<0.09

6<0.09

5<0.09

5<0.09

6<0.09

5<0.09

5<0.09

6<0.09

6Metals

Alum

inum

7429

905

2,00

086

.8J

49.9J

23.1J

52.7J

18.8J

20.6J

<200

<200

<200

77.1J

<200

81.7J

64J

115J

56J

Antim

ony

7440

360

10.78

<0.42

UJ

<0.42

UJ

<0.42

UJ

1.1J

0.66

J0.57

J<0.42

<0.42

<0.42

0.51

J<0.42

<0.42

UJ

<0.42

UJ

<0.42

UJ

<0.42

UJ

Arsenic

7440

382

100.05

21J

<0.95

UJ

<0.95

UJ

<0.95

UJ

1.8J

24.8

27.7

<0.95

1J

51.8

286

190J

195J

<0.95

UJ

37.4J

Bariu

m74

4039

370

038

022

.7J

10.6J

28.9J

43J

183J

47.5J

45.6

27.8

17.5

73.1J

97.1

109J

109J

45.5J

113J

Calcium

7440

702

2180

0J

3100

0J

2540

0J

5590

0J

8960

062

000

1280

0055

700

4350

092

000

1130

0012

3000

J12

2000

J72

600J

8960

0J

Cobalt

7440

484

10.6

<0.62

UJ

<0.62

UJ

1.1J

<0.62

UJ

3.1J

1.4J

3.1J

<0.62

0.68

J5.4J

18.7

10.3J

10J

<0.62

UJ

1.3J

Copp

er74

4050

81,00

080

1.1J

0.59

J<0.38

UJ

5.5J

0.46

J0.45

J<0.38

<0.38

<0.38

0.58

J<0.38

<0.38

UJ

<0.38

UJ

0.84

J<0.38

UJ

Iron

7439

896

300

1,40

055

6J

42.3J

29.2J

55.9J

1160

2380

024

600

90.7J

909

8090

096

600

7220

0J

7240

0J

99.5J

1620

0J

Lead

7439

921

150.24

J0.8J

0.16

J0.38

J0 .1J

0.09

7J

0.15

J0.14

J0.13

J0.17

J0.17

J0.13

J0.12

J0.16

J0.15

JMangane

se74

3996

550

4332

7J

109J

84.3J

2J

1390

1090

1150

17.7

185

1130

336

305J

302J

26.9J

998J

Magne

sium

7439

954

4610

J66

30J

1530

0J

4390

J47

700J

1520

0J

9980

1470

028

400

7480

J22

800

1780

0J

1770

0J

2320

0J

1160

0J

Mercury

7439

976

10.06

3<0.02

6<0.02

60.1J

0.03

9J

<0.02

6<0.02

60.02

9J

<0.02

6<0.02

6<0.02

60.03

4J

<0.02

6<0.02

6<0.03

5<0.03

5Nickel

7440

020

100

390.61

J<0.5UJ

1.2J

0.75

J<0.5

<0.5

1.2J

0.71

J0.69

J0.65

J1.5J

1.4J

1.3J

0.58

J1.2J

Potassium

7440

097

2010

J20

90J

1840

J39

70J

5760

3620

4760

6010

1010

4410

9820

1040

0J

1030

0J

2930

J96

90J

Selenium

7782

492

2010

0.86

J1.4J

0.89

J0.36

J<0.27

<0.27

<0.27

1.3J

<0.27

<0.27

<0.27

<0.27

UJ

<0.27

UJ

1.4J

<0.27

UJ

Sodium

7440

235

1320

0J

1260

0J

2490

0J

4430

J19

300

2750

071

8011

700

9650

6220

7360

6700

J65

70J

3720

0J

2260

0J

Vanadium

7440

622

0.3

8.6

2.4J

0.87

J0.85

J2.2J

0.73

J0.67

J0.62

J1.2

0.72

J1.5

1.2

1.5J

1.3J

1.7J

1J

Zinc

7440

666

1,00

060

09.9J

7.1J

10.5J

5.4J

9.9J

6.9J

6.9J

6.8J

4.3J

8J

5.1J

4.6J

5.3J

5.2J

6.5J

Allvaluesa

rein

g/L.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

IMAC

Interim

Maxim

umAllowableCo

ncen

tration.

Screen

ingvalueno

tavailable

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–


dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

.UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precise

.An

alyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t .1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance.

2Screen

inglevelsfore

ndosulfanused

.End

osulfan02

Linclud

esamixture

ofalph

aandbe

taiso

mers.

3Screen


used

.4

Screen

inglevelsfore

ndrin

used

.NC1

502

Llevelsinclud

een

drin,end

rinalde

hde,anden

drinketone

.Theresultexceed

sthe

North

CarolinaGrou

ndwater

QualityStandardsa

ndIM

ACs.

Theresultexceed

s the

USEPA

RSLfortapwater.

North

Carolin

aGrou

ndwater

Qua

lityStan

dards

andIM

ACs

USEPA

Region

alScreen

ingLevel

forT

apwater

1

1/19

/201

5Page

2of

4I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table13

Summaryof

Grou

ndwater

AnalyticalRe

sults

2012

.xlsx

|Feb

2012


Grou

ndwater

TrianglePa

cific,Elizab

ethCity,N

C

MW

1MW

2MW

3MW

4MW

5MW

6MW

7MW

8MW

9MW

10MW

11MW

13MW

14

11/2/201

111

/3/201

111

/2/201

111

/3/201

111

/2/201

111

/2/201

110

/31/20

1111

/1/201

110

/31/20

1110

/31/20

1111

/1/201

111

/1/201

111

/1/201

111

/2/2011

11/3/201

1An

alyte/Pa

rameter

CASNum

ber

VOCs

1,2Dichlorobe

nzen

e95

501

2030

<0.7

<0.7UJ

45<0.7UJ

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7

<0.7UJ

1,3Dichlorobe

nzen

e54173

120

0<1

<1UJ

2J

<1UJ

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1UJ

1,4Dichlorobe

nzen

e10

646

76

0.48

<1

<1UJ

5<1UJ

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1UJ

Chloroform

6766

370

0.22

<0.8

<0.8UJ

<0.8

<0.8UJ

<0.8

<0.8

<0.8

1J

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8UJ


15659

270

3.6

<0.8

<0.8

1J

<0.8UJ

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8

<0.8UJ

Trichloroe

thylen

e79

016

30.49

<1

<1UJ

95<1UJ

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1

<1UJ

SVOCs

4Methylphe

nol

10644

540

190

<0.5

<0.5

<0.5

<0.5

<0.5

R<0.5

<0.5

0.5J

41

32

<0.5

<0.5

2Methylnaphthalene

9157

630

3.6

<0.00

95<0.00

97<0.00

95<0.00

95<0.00

95<0.00

950.02

2J

<0.00

960.01

2J

0.03

J<0.00

95<0.00

98<0.00

960.01

8J

0.02

1J

Acen

aphthe

ne83

329

8053

<0.00

95<0.00

97<0.00

95<0.00

95<0.00

95<0.00

95<0.00

97<0.00

96<0.00

96UJ

<0.00

96<0.00

950.1

0.11

0.04

4J

0.35

Acen

aphthylene

20896

820

0<0.00

95<0.00

97<0.00

95<0.00

95<0.00

95<0.00

95<0.00

97<0.00

96<0.00

96UJ

<0.00

96<0.00

95<0.00

98<0.00

96<0.00

960.01

8J

Anthracene

12012

72,00

018

0<0.00

95<0.00

970.02

J<0.00

95<0.00

95<0.00

95<0.00

97<0.00

96<0.00

96<0.00

960.01

2J

0.01

5J

0.01

5J

0.01

7J

0.16

Fluo

ranthe

ne20644

030

080

<0.00

95<0.00

97<0.00

95<0.00

95<0.00

95<0.00

95<0.00

97<0.00

96<0.00

96UJ

<0.00

96<0.00

95<0.00

98<0.00

960.03

1J

0.05

4Fluo

rene

8673

730

029

<0.00

95<0.00

97<0.00

95<0.00

95<0.00

950.02

2J

<0.00

97<0.00

96<0.00

96UJ

0.01

5J

<0.00

950.07

5<0.00

960.02

4J

0.21

Naphthalene

9120

36

0.17

<0.02

80.15

0.03

6J

0.03

8J

<0.02

8<0.02

80.09

<0.02

90.03

8J

0.05

10.05

10.03

9J

<0.02

90.06

60.06

4Ph

enanthrene

8501

820

0<0.02

8<0.02

9<0.02

8<0.02

8<0.02

8<0.02

8<0.02

9<0.02

9<0.02

9UJ

<0.02

9<0.02

90.05

90.05

90.08

60.15

Pyrene

12900

020

012

<0.00

95<0.00

97<0.00

95<0.00

95<0.00

95<0.00

95<0.00

97<0.00

96<0.00

96UJ

<0.00

96<0.00

95<0.00

98<0.00

960.02

5J

0.03

6J

Pesticides

44DD

D72

548

0.1

0.031

<0.00

480.02

3J

<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

49<0.00

49<0.00

48alph

aCh

lordane3

5103

719

0.1

0.22

<0.00

190.46

<0.00

19<0.00

19<0.00

190.00

62J

<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19<0.00

19<0.00

2<0.00

2<0.00

19Ch

lordane

5774

90.1

0.22

<0.11

4.4

<0.11

<0.11

<0.11

<0.11

<0.11

<0.12

<0.11

<0.12

<0.12

<0.12

<0.12

<0.12

<0.11

Endo

sulfanI2

95998

840

10<0.00

410.04

2J

<0.00

41<0.00

41<0.00

41<0.00

41<0.00

41<0.00

42<0.00

41<0.00

41<0.00

42<0.00

41<0.00

42<0.00

42<0.00

41

EndrinKe

tone

453

49470

52

0.23

<0.00

480.00

75J

<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

48<0.00

49<0.00

49<0.00

48He

ptachlor

Epoxide

1024

573

0.00

40.00

38<0.00

220.13

<0.00

22<0.00

22<0.00

22<0.00

22<0.00

22<0.00

22<0.00

22<0.00

22<0.00

220.00

25J

0.00

24J

<0.00

23<0.00

22He

xachlorobe

nzen

e11

874

10.02

0.04

9<0.00

29<0.00

29<0.00

29<0.00

29<0.00

290.00

42J

<0.00

29<0.00

29<0.00

96UJ

<0.00

29<0.00

29<0.00

29<0.00

29<0.00

29<0.00

29yCh

lordane3

5103

742

0.1

0.22

<0.00

230.46

<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

23<0.00

24<0.00

23Metals

Alum

inum

7429

905

2,00

0<20

058

.7J

<20

010

2J

<20

0<20

0<20

023

0<20

022

2<20

0<20

0<20

025

444

.1J

Antim

ony

7440

360

10.78

<0.42

<0.42

UJ

<0.42

0.75

J<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

<0.42

Arsenic

7440

382

100.05

2<0.95

<0.95

UJ

<0.95

4.9

<0.95

<0.95

32.4

<0.95

<0.95

44.4

252

195

204

<0.95

35.1

Bariu

m74

4039

370

038

026

.311

.4J

26.8

44.9

237

73.6

55.4

54.3

22.4

85.4

98.7

113

112

5114

6Calcium

7440

702

2050

030

100J

2200

040

400

1070

0079

300

1200

0055

700

4110

084

700

9950

011

4000

1190

0070

100

7660

0Ch

romium

7440

473

100.00

22<0.6

<0.6UJ

<0.6

<0.6

<0.6

<0.6

<0.6

0.65

J<0.6

0.63

J<0.6

<0.6

<0.6

<0.6

<0.6

Cobalt

7440

484

0.6

0.9J

<0.62

0.99

J2.3J

3.5J

2.1J

3J

4.8J

<0.62

8J

15.8

8.8J

8.5J

0.69

J1J

Copp

er74

4050

81,00

080

1.2J

<0.38

UJ

0.39

J3.8J

0.63

J0.39

J0.49

J0.83

J0.76

J0.43

J0.63

J0.54

J0.50

J1.4J

<0.38

Iron

7439

896

300

1400

210

58.6J

19.4J

919

1160

3970

032

900

245

119J

7210

087

500

7280

074

900

245

2610

Lead

7439

921

15NS

0.14

J0.78

J<0.08

0.45

J0.13

J0.11

J<0.08

0.21

J0.14

J0.22

J0.13

J0.21

J0.14

J0.19

J0.11

JMangane

se74

3996

550

4321

618

290

49.1

1380

1400

875

1220

70.5

1070

283

269

263

51.1

1080

Magne

sium

7439

954

5800

6310

J12

500

4030

6420

018

200

7620

2660

031

400

6920

2080

016

100

1660

021

600

1380

0Mercury

7439

976

10.06

3<0.02

6<0.02

6UJ

0.04

4J

<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6<0.02

6Nickel

7440

020

100

390.76

J<0.5UJ

1.7J

0.9J

0.59

J<0.5

1.3J

2.5J

2J

2.3J

1.6J

1.7J

1.8J

1.4J

1.5J

Potassium

7440

097

2150

2330

J18

3040

2061

5051

5050

4031

7012

4043

5092

6095

9097

0032

4086

30Selenium

7782

492

2010

0.42

J2J

0.88

J0.43

J<0.27

<0.27

<0.27

0.73

J0.58

J<0.27

<0.27

<0.27

<0.27

1.6J

<0.27

Sodium

7440

235

1680

011

800J

2360

011

100

4980

040

800

6010

1560

011

000

7020

7290

6560

6,64

042

100

2170

0Va

nadium

7440

622

0.3

8.6

1.4

1.1J

0.94

J3.1

0.69

J0.45

J0.59

J1.5

1.7

1.5

1.1

1.4

1.2

2.2

2.8

Zinc

7440

666

1,00

060

014

.2J

14.7J

6.3J

10.6J

7.1J

14.3J

8.1J

8J

14.3J

7.7J

7.1J

15.3J

7.4J

10.6J

16.8J

Allvaluesa

rein

g/L.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

IMAC

Interim

Maxim

umAllowableCo

ncen

tration.

Screen

ingvalueno

tavailable

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–


dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

.UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precise

.An

alyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t.1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance.

2Screen

inglevelsfore

ndosulfanused

.End

osulfan02

Linclud

esamixture

ofalph

aandbe

taiso

mers.

3Screen


used

.4

Screen

inglevelsfore

ndrin

used

.NC1

502

Llevelsinclud

een

drin,end

rinalde

hde,anden

drinketone

.Theresultexceed

sthe

North

CarolinaGrou

ndwater

QualityStandardsa

ndIM

ACs.

Theresultexceed

sthe

USEPA

RSLfortapwater.

MW

12

DuplicatePa

ir

North

Carolin

aGrou

ndwater

Qua

lity

Stan

dardsa

ndIM

ACs

USEPA

Region

alScreen

ingLevelfor

Tapw

ater

1

1/19

/201

5Page

3of

4I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table13

Summaryof

Grou

ndwater

AnalyticalRe

sults

2012

.xlsx

|Novem

ber2

011


Grou

ndwater

TrianglePa

cific,Elizab

ethCity,N

C

SampleID

MW

1MW

3MW

4MW

5MW

6De

pth(fb

s)SampleDa

te19

9819

9819

9819

9819

9819

9819

98

Analyte/Pa

rameter

CASNum

ber

Endrin

7220

82

0.23

0.06

8J

<0.10

<0.10UJ

0.48

J<0.10

2.2DJ

<0.10UJ

Toxaph

ene

8001

352

0.03

0.01

5<5.0

<5.0

<5.0UJ

5.9

<5.0

35D

<5.0UJ

Metals

Alum

inum

7429

905

2,00

01,70

067

863

415

8B

219

1,37

051

4Arsenic

7440

382

100.052

<1.3

<1.3

<1.3

<1.3

1.4B

1.5B

20.7

Bariu

m74

4039

370

038

0<31.0

<14.6

<14.1

<22.1

<26.4

<13.7

147B

Cobalt

7440

484

10.6

<2.9

<0.90

<0.90

2.2B

22.1B

2.2B

10.8B

Iron

7439

896

300

1,40

01,07

039

536

811

117

396

035

,600

Lead

7439

921

15<1.0

<1.0

<1.0

<1.0

<1.0

1.0B

<1.0

Magne

sium

7439

954

<7,970

<6,740

<6,650

<10,80

0<8,560

<21,90

042

,400

Mangane

se74

3996

550

4340

525

.124

.910

746

237

15,36

0Allvaluesa

rein

g/L.

Notes

USEPA

UnitedStates

Environm

entalProtectionAg

ency

IMAC

Interim

Maxim

umAllowableCo

ncen

tration.

Screen

ingvalueno

tavailable

B–Theassociated

numericalvaluewas

anestim

ated

quantitybe

lowtherepo

rtinglim

itfora

ninorganicanalyte.

D–Co

ncen

trationob

tained

was

theresultof

adilutio

n.J–


dde

tectionlim

itbu

tlessthanthelim

itof

quantitation;

valueprovided

isestim

ated

.UJ–

Theanalytewas

notd

etectedat

alevelgreater

than

oreq

ualtothequ

antitationlim

it.Ho

wever,the

quantitationlim

itisapproxim

ateandmay

beinaccurate

orim

precis e

Analyte

Constitue

ntiden

tifiedas

Constitue

ntof

PotentialCon

cern

inHu

man

Health

Risk

Assessmen

t.1

Risk

basedscreen

inglevelsbasedon

THQ=1.0;no

ncancer

values

have

been

divide

dby

10,asp

erEPAguidance

2Screen

inglevelsfore

ndosulfanused

.End

osulfan02

Linclud

esamixture

ofalph

aandbe

taiso

mers.

3Screen


used

.4

Screen

inglevelsfore

ndrin

used

.NC1

502

Llevelsinclud

een

drin,end

rinalde

hde,anden

drinketone

.Theresultexceed

sthe

North

CarolinaGrou

ndwater

QualityStandardsa

ndIM

ACs.

Theresultexceed

sthe

USEPA

RSLfortapwater.

Pesticides

North

Carolin

aGrou

ndwater

Qua

lity

Stan

dardsa

ndIM

ACs

MW

2

USEPA

Region

alScreen

ingLevelfor

Tapw

ater

1Du

plicatePa

ir

1/19

/201

5Page

4of

4I:\Viacom

Triangle.106

79\477

33.Revision

sTo

Ri\Docs\Re

ports\RI\RIR

eport\Tables

1120

14\

Table13

Summaryof

Grou

ndwater

AnalyticalRe

sults

2012

.xlsx

|199

8


Supp

lem

enta

l Gro

undw

ater

Inve

stig

atio

n_

MW

-01

MW

-01

DM

W-0

3M

W-0

3 D

MW

-15

MW

-15

DM

W-1

6M

W-1

6 D

DUPL

ICAT

EM

W-0

1-09

1817

MW

-01D

-091

917

MW

-03-

0921

17M

W-0

3D-0

9221

7M

W-1

5-09

1917

MW

-15D

-092

017

MW

-16-

1011

17M

W-1

6D-1

0111

7M

W-1

8-10

1117

9/18

/201

79/

19/2

017

9/21

/201

79/

22/2

017

9/19

/201

79/

20/2

017

10/1

1/20

1710

/11/

2017

10/1

1/20

17

1,2-

Dich

loro

benz

ene

95-5

0-1

2030

[2]

< 5

< 5

1462

< 5

11<

5<

5<

51,

3-Di

chlo

robe

nzen

e54

1-73

-120

0--

< 5

< 5

< 5

2 J

< 5

< 5

< 5

< 5

< 5

1,4-

Dich

loro

benz

ene

106-

46-7

60.

48<

5<

52

J5

J<

5<

5<

5<

5<

5cis

-1,2

-Dich

loro

ethe

ne15

6-59

-270

3.6

[2]

< 1

< 1

98

< 1

4<

1<

1<

1tr

ans-

1,2-

Dich

loro

ethe

ne15

6-60

-510

036

[2]

< 1

< 1

< 1

< 1

< 1

0.9

J<

1<

1<

1Tr

ichlo

roet

hene

79-0

1-6

30.

49<

1<

126

029

0<

145

< 1

< 1

< 1

All u

nits

are

in

g/L.

Notes:

USEP

A Un

ited

Stat

es E

nviro

nmen

tal P

rote

ctio

n Ag

ency

IMAC

Int

erim

Max

imum

Allo

wab

le C

once

ntra

tion

-- Sc

reen

ing

valu

e no

t ava

ilabl

eJ

The

dete

ctio

n is

grea

ter t

han

the

met

hod

detc

tion

limit,

but

less

than

the

limit

of q

uant

itatio

n; v

alue

pro

vide

d is

an e

stim

ate.

[1

] Ri

sk-b

ased

scre

enin

g le

vels

base

d on

THQ

=1.0

.0

[2]

Non-

canc

er v

alue

s hav

e be

en d

ivid

ed b

y 10

, as p

er U

SEPA

gui

danc

e.

Bo

ld a

nd P

ink

The

resu

lt ex

ceed

s the

Nor

th C

arol

ina

Grou

ndw

ater

Qua

lity

Stan

dard

s and

IMAC

s.Bo

ld a

nd B

lue

The

resu

lt ex

ceed

s the

USE

PA R

egio

nal S

cree

ning

Leve

l for

Tap

wat

er.

Bold

and

Ora

nge

The

resu

lt ex

ceed

s bot

h th

e No

rth

Caro

lina

Grou

ndw

ater

Qua

lity

Stan

dard

s and

IMAC

s, as

wel

l as t

he U

SEPA

Reg

iona

l Scr

eeni

ng Le

vel f

or T

apw

ater

.

Tabl

e -

Sum

mar

y of

Gro

undw

ater

An

alyt

ical

Res

ults

Tria

ngle

Pac

ific

Eliza

beth

City

, NC

USEP

A Re

gion

al

Scre

enin

g Le

vel f

or

Tapw

ater

(Jun

e 20

17) [1

]An

alyt

eCa

s Num

ber

Nor

th C

arol

ina

Grou

ndw

ater

Q

ualit

y St

anda

rds

and

IMAC

s

OBG

| TH

ERE'

S A

WAY

PAGE

1 o

f 1Ta

ble

4 - S

umm

ary

of G

roun

dwat

er A

naly

tical

Res

ults

.xlsx


Appe

ndix

A - S

uppl

emen

tal I

nves

tigat

ion

Sum

mar

ySu

pple

men

tal G

roun

dwat

er In

vest

igat

ion_

Conc

entr

atio

nSc

ore

Conc

entr

atio

nSc

ore

Conc

entr

atio

nSc

ore

Conc

entr

atio

nSc

ore

Diss

olve

d ox

ygen

(mg/

L)Di

ssol

ved

oxyg

en (m

g/L)

0.73

00.

680

0.63

00.

680

Nitr

ate

(mg/

L)Ni

trat

e (m

g/L)

4.8

01

0<

0.5

2<

0.5

2Iro

n (II

) (m

g/L)

Iron

(II) (

mg/

L)0.

057

00.

019

00.

970

0.09

50

Sulfa

te (m

g/L)

Sulfa

te (m

g/L)

30.9

05.

12

34.2

063

.70

Met

hane

(mg/

L)M

etha

ne (m

g/L)

103

203

3.2

J3

693

ORP

(mV)

ORP

(mV)

420.

70

281.

60

49.5

113

00

pH (S

.U.)

pH (S

.U.)

5.55

05.

790

5.88

05.

950

Carb

on D

ioxi

de (m

g/L)

[1]

Carb

on D

ioxi

de (m

g/L)

[1]

80.8

060

.20

56.3

081

0Ch

lorid

e (m

g/L)

[1]

Chlo

ride

(mg/

L) [1

]26

.42

22.6

011

.80

28.2

2Al

kalin

ity (m

g/L)

[1]

Alka

linity

(mg/

L) [1

]64

047

.70

890

128

0BT

EX (m

g/L)

BTEX

(mg/

L)<

0.00

10

< 0.

001

0<

0.00

10

< 0.

001

0TO

C (m

g/L)

TOC

(mg/

L)1.

70

0.54

J0

3.8

03.

40

Tem

pera

ture

(°C)

Tem

pera

ture

(°C)

20.2

41

18.1

30

20.2

21

18.3

50

Hydr

ogen

(nM

)Hy

drog

en2.

73

2.1

32

32

3To

tal S

core

:

Conc

entr

atio

nSc

ore

Conc

entr

atio

nSc

ore

Conc

entr

atio

nSc

ore

Scor

eDi

ssol

ved

oxyg

en (m

g/L)

0.49

30.

483

0.48

3Ni

trat

e (m

g/L)

< 0.

50

< 0.

50

< 0.

50

Iron

(II) (

mg/

L)10

.43

< 0.

050

0.02

20

Sulfa

te (m

g/L)

34.5

010

.72

112

Met

hane

(mg/

L)20

346

342

3O

RP (m

V)21

.31

145.

40

145.

40

pH (S

.U.)

5.73

05.

80

5.8

0Ca

rbon

Dio

xide

(mg/

L) [1

]28

51

109

072

.50

Chlo

ride

(mg/

L) [1

]9

015

.50

15.1

0Al

kalin

ity (m

g/L)

[1]

113

168

.70

72.3

0No

tes:

BT

EX (m

g/L)

< 0.

001

0<

0.00

10

< 0.

001

0TO

CTo

tal o

rgan

ic ca

rbon

NM N

ot m

easu

red

TOC

(mg/

L)5.

10

0.61

00.

630

BTEX

Benz

ene,

tolu

ene,

eth

ylbe

nzen

e, xy

lene

S.U.

Stan

dard

Uni

tsTe

mpe

ratu

re (°

C)18

.81

018

.93

018

.93

01

-Hy

drog

en2.

1 [2

]3

2.5

[2]

3NM

0To

tal S

core

:2

-Hy

drog

en d

ata

is fro

m S

epte

mbe

r sam

plin

g ev

ent.

19.7

32.

1

Conc

entr

atio

nCo

ncen

trat

ion

-22.

56.

1954

.713

.113

7

Wel

ls do

wng

radi

ent o

f TCE

plu

me

Wel

ls w

ithin

TCE

plu

me

Back

grou

nd w

ells,

upg

radi

ent o

f TCE

plu

me

MW

-16D

Dup

licat

e

8

Inte

rpre

tatio

n

Dete

ctio

ns a

t MW

-01

and

MW

-01D

use

d fo

r bac

kgro

und

valu

es fo

r sha

llow

and

dee

p w

ells,

resp

ectiv

ely.

Tabl

e 2.

4 fro

m U

SEPA

Tec

hnica

l Pro

toco

l for

Eva

luat

ing

Natu

ral A

tten

uatio

n of

Chl

orin

ated

Sol

vent

s in

Grou

nd W

ater

(199

8)

Inte

rpre

tatio

n of

Poi

nts A

war

ded

Durin

g Sc

reen

ing

Step

0 to

5

6 to

14

15 to

20

MW

-03

MW

-03D

MW

-15

Adeq

uate

evi

denc

e fo

r ana

erob

ic bi

odeg

rada

tion

(redu

ctiv

e de

chlo

rinat

ion)

of

chlo

rinat

ed o

rgan

ics.

Stro

ng e

vide

nce

of a

naer

obic

biod

egra

datio

n (re

duct

ive

dech

lorin

atio

n) o

f ch

lorin

ated

org

anics

.>

20

MW

-16

MW

-16D

1511

Inad

equa

te e

vide

nce

for a

naer

obic

biod

egra

datio

n (re

duct

ive

dech

lorin

atio

n)

of ch

lorin

ated

org

anics

.Lim

ited

evid

ence

of a

naer

obic

biod

egra

datio

n (re

duct

ive

dech

lorin

atio

n) o

f ch

lorin

ated

org

anics

.

MW

-01

MW

-01D

0.67 2.8

0.06

526

.6<

526

2.3

5.87

44.3

8.3

55.6

< 0.

001

< 0.

001

1.6

MW

-15D

10

Tabl

e N

atur

al A

tten

uatio

n Sc

reen

ing

Tria

ngle

Pac

ific

Eliza

beth

City

, NC

98

10

1.8

22.2

42

0.68

< 0.

514

.513

.9 5

OBG

| TH

ERE'

S A

WAY

PAGE

1 o

f 1Ta

ble

6 - N

atur

al A

tten

uatio

n Sc

reen

ing

Rev2

.xlsx


RAG

S TA

BLE

7.1a

OC

CU

RR

ENC

E, D

ISTR

IBU

TIO

N, A

ND

SEL

ECTI

ON

OF

CH

EMIC

ALS

OF

POTE

NTI

AL C

ON

CER

N -

EXPO

SUR

E U

NIT

1 (A

CTI

VE F

ACIL

ITY

AREA

) - S

UR

FAC

E SO

ILFO

RM

ER T

RIA

NG

LE P

ACIF

IC S

ITE

ELIZ

ABET

H C

ITY,

NO

RTH

CAR

OLI

NA

Scen

ario

: Cur

rent

/Fut

ure

Med

ium

: Soi

lEx

posu

re M

ediu

m: S

urfa

ce S

oil (

0-1

ft bg

s)

Expo

sure

Poi

ntC

AS N

umbe

rC

hem

ical

Min

imum

Det

ecte

dC

once

ntra

tion

(1)

Max

imum

Det

ecte

dC

once

ntra

tion

(1)

Uni

tsLo

catio

n of

M

axim

umC

once

ntra

tion

Det

ectio

nFr

eque

ncy

Ran

ge o

f D

etec

tion

Lim

its

Con

cent

ratio

nU

sed

for

Scre

enin

g(2

)

Pote

ntia

lAR

AR/T

BCVa

lue

(3)

Scre

enin

gTo

xici

ty V

alue

(5)

CO

PCFl

ag(Y

/N)

Rat

iona

le fo

r Se

lect

ion

or

Del

etio

n(6

)

USE

PA In

dust

rial

Soil

RSL

(4)

SVO

Cs

92-5

2-4

1,1'

-Bip

heny

l0.

080.

9 J

mg/

kgBH

-05

2/9

0.01

8-1.

19.

00E-

01N

V2.

00E+

01n

2.00

E+01

NBS

L91

-57-

62-

Met

hyln

apht

hale

ne0.

0039

J4.

1m

g/kg

BH-0

58/

170.

0041

-4.8

4.10

E+00

NV

2.20

E+02

n2.

20E+

02N

BSL

106-

44-5

4-M

ethy

lphe

nol

0.04

50.

045

mg/

kgBH

-08

1/9

0.01

8-1.

14.

50E-

02N

V6.

20E+

03n

6.20

E+03

NBS

L83

-32-

9Ac

enap

hthe

ne0.

013

5.9

mg/

kgBH

-03

7/17

0.00

37-4

.85.

90E+

00N

V3.

30E+

03n

3.30

E+03

NBS

L20

8-96

-8Ac

enap

hthy

lene

0.00

25 J

0.25

mg/

kgBH

-05

8/17

0.01

7-4.

82.

50E-

01N

VN

VN

VY

NTX

120-

12-7

Anth

race

ne0.

0029

J9.

7m

g/kg

BH-0

311

/17

0.38

-4.8

9.70

E+00

NV

1.70

E+04

n1.

70E+

04N

BSL

56-5

5-3

Benz

[a]a

nthr

acen

e0.

0058

J20

mg/

kgBH

-03

13/1

70.

38-0

.43

2.00

E+01

NV

2.10

E+00

c2.

10E+

00Y

ASL

50-3

2-8

Benz

o[a]

pyre

ne0.

0319

mg/

kgBH

-03

12/1

70.

38-4

.81.

90E+

01N

V2.

10E-

01c

2.10

E-01

YAS

L20

5-99

-2Be

nzo[

b]flu

oran

then

e0.

052

31m

g/kg

BH-0

311

/16

0.00

41-4

.83.

10E+

01N

V2.

10E+

00c

2.10

E+00

YAS

L19

1-24

-2Be

nzo[

g,h,

i]per

ylen

ef0.

011

7.9

Jm

g/kg

BH-0

211

/17

0.00

41-4

.87.

90E+

00N

V1.

70E+

03n

1.70

E+03

NBS

L20

7-08

-9Be

nzo[

k]flu

oran

then

e0.

022

13m

g/kg

BH-0

311

/17

0.00

41-4

.81.

30E+

01N

V2.

10E+

01c

2.10

E+01

NBS

L11

7-81

-7bi

s(2-

Ethy

lhex

yl)P

htha

late

0.83

1500

DJ

mg/

kgBH

-04

14/1

70.

074-

0.07

81.

50E+

03N

V1.

20E+

02c

1.20

E+02

YAS

L85

-68-

7Bu

tylb

enzy

lpht

hala

te0.

29 J

8.2

Dm

g/kg

E-SS

-13/

170.

074-

4.8

8.20

E+00

NV

9.10

E+02

c9.

10E+

02N

BSL

86-7

4-8

Car

bazo

le0.

22 J

11m

g/kg

BH-0

55/

170.

018-

4.8

1.10

E+01

NV

NV

NV

YN

TX21

8-01

-9C

hrys

ene

0.01

J23

mg/

kgBH

-03

12/1

70.

38-4

.82.

30E+

01N

V2.

10E+

02c

2.10

E+02

NBS

L53

-70-

3D

iben

z[a,

h]an

thra

cene

0.06

92.

6 J

mg/

kgBH

-02

6/13

0.00

37-4

302.

60E+

00N

V2.

10E-

01c

2.10

E-01

YAS

L13

2-64

-9D

iben

zofu

ran

0.31

6.4

mg/

kgBH

-05

4/17

0.01

8-48

006.

40E+

00N

V1.

00E+

02n

1.00

E+02

NBS

L11

7-84

-0D

i-n-o

ctyl

phth

alat

e0.

26 J

5.1

Jm

g/kg

BH-0

55/

150.

074-

4.8

5.10

E+00

NV

6.20

E+02

n6.

20E+

02N

BSL

206-

44-0

Fluo

rant

hene

0.01

461

mg/

kgBH

-03

13/1

70.

38-0

.43

6.10

E+01

NV

2.20

E+03

n2.

20E+

03N

BSL

86-7

3-7

Fluo

rene

0.00

54 J

5.2

mg/

kgBH

-03

7/17

0.00

37-4

.85.

20E+

00N

V2.

20E+

03n

2.20

E+03

NBS

L19

3-39

-5In

deno

[1,2

,3-c

d]py

rene

0.01

18.

1 J

mg/

kgBH

-02

11/1

70.

0041

-4.8

8.10

E+00

NV

2.10

E+00

c2.

10E+

00Y

ASL

91-2

0-3

Nap

htha

lene

0.00

5 J

6.6

mg/

kgBH

-03

9/17

0.00

41-4

.86.

60E+

00N

V1.

80E+

01c

1.80

E+01

NBS

L85

-01-

8Ph

enan

thre

neg

0.01

248

mg/

kgBH

-03

13/1

70.

38-0

.43

4.80

E+01

NV

1.70

E+04

n1.

70E+

04N

BSL

129-

00-0

Pyre

ne0.

034

43m

g/kg

BH-0

313

/17

0.38

-0.4

34.

30E+

01N

V1.

70E+

03n

1.70

E+03

NBS

LPC

Bs 1109

7-69

-1Ar

oclo

r-125

40.

9110

Jm

g/kg

BH-0

16/

170.

0037

-0.0

431.

00E+

01N

V7.

40E-

01c

7.40

E-01

YAS

L11

096-

82-5

Aroc

lor-1

260

0.02

5 J

3.7

mg/

kgBH

-03

7/17

0.00

37-0

.33

3.70

E+00

NV

7.40

E-01

c7.

40E-

01Y

ASL

Not

es:

Def

initi

ons:

(1)

J - e

stim

ated

val

ue; J

N -

pres

umpt

ive

evid

ence

that

the

anal

yte

is p

rese

nt, b

ut it

has

not

bee

n co

nfirm

ed d

ue to

col

umn

conf

irmat

ion

excu

rsio

ns.

ARAR

: App

licab

le o

r Rel

evan

t and

App

ropr

iate

Req

uire

men

ts

D

- di

scre

panc

ies

betw

een

repo

rted

conc

entra

tions

may

be

due

to d

ilutio

n of

the

sam

ple

or e

xtra

ct. B

- co

nstit

uent

was

als

o fo

und

in a

ssoc

iate

dC

AS: C

hem

ical

Abs

tact

Ser

vice

met

hod

blan

k. U

- re

adin

g w

as b

elow

met

hod

dete

ctio

n lim

it.C

OPC

: Che

mic

al o

f Pot

entia

l Con

cern

(2)

Con

cent

ratio

n us

ed fo

r scr

eeni

ng is

the

max

imum

det

ecte

d co

ncen

tratio

n.N

UT:

Che

mic

al is

an

esse

ntia

l nut

rient

and

is n

ot s

cree

ned

in(3

) N

o AR

AR v

alue

s w

ere

cons

ider

ed fo

r thi

s ex

posu

re m

ediu

m.

RSL

: Reg

iona

l Scr

eeni

ng L

evel

; USE

PA, 2

014

(4)

USE

PA In

dust

rial S

oil R

SLs

(May

201

4); c

= C

ance

r RSL

; n =

Non

canc

er R

SL; N

V =

No

valu

e. N

onca

ncer

RSL

s ad

just

ed b

y m

ultip

lyin

g R

SL b

y 0.

1.TB

C: T

o Be

Con

side

red

(5)

The

Scre

enin

g To

xici

ty V

alue

repr

esen

ts th

e U

SEPA

Indu

stria

l Soi

l RSL

s ta

ble

valu

e.U

SEPA

: Uni

ted

Stat

es E

nviro

nmen

tal P

rote

ctio

n Ag

ency

(6)

Sele

ctio

n R

atio

nale

: AS

L - A

bove

Scr

eeni

ng L

evel

; NTX

- N

o To

xici

ty In

form

atio

n. D

elet

ion

Rat

iona

le:

BSL

- Bel

ow S

cree

ning

Lev

el.

a =

RSL

val

ue fo

r chr

omiu

m (I

II) a

pplie

d; h

exav

alen

t chr

omiu

m n

ot d

etec

ted

in a

ny s

ite s

ampl

es.

b =

RSL

val

ue fo

r chl

orda

ne u

sed.

c =

RSL

val

ue fo

r b-B

HC

use

d.d

= R

SL v

alue

for e

ndos

ulfa

n us

ed.

e =

RSL

val

ue fo

r end

rin u

sed.

f = R

SL v

alue

for p

yren

e us

ed.

g =

RSL

for a

nthr

acen

e us

ed.

"-" =

Che

mic

al d

etec

ted

in 1

00%

of s

ampl

es.

Con

stitu

ents

of C

hlor

dane

incl

udes

all

isom

ers

dete

cted

.

I:\Vi

acom

-Tria

ngle

.106

79\4

7733

.Rev

isio

ns-T

o-R

i\Doc

s\R

epor

ts\H

HR

A\R

ondi

nelli

files

11-

10-1

4\La

st M

inut

e Ta

ble

Rev

isio

ns\R

AGS

Tabl

e 2.

1 - E

U1

Surfa

ce S

oil S

cree

n (In

d R

SLs)

.xls

2.1a

Page

2 o

f 2O

'Brie

n &

Ger

e


RA

GS

TA

BLE

O

CC

UR

RE

NC

E, D

IST

RIB

UT

ION

, AN

D S

ELE

CT

ION

OF

CH

EM

ICA

LS O

F P

OT

EN

TIA

L C

ON

CE

RN

- E

XP

OS

UR

E U

NIT

3 (

PA

ILIN

CR

EE

K)

- S

UR

FA

CE

WA

TE

RF

OR

ME

R T

RIA

NG

LE P

AC

IFIC

SIT

EE

LIZ

AB

ET

H C

ITY

, NO

RT

H C

AR

OLI

NA

Sce

nario

: Cur

rent

/Fut

ure

Med

ium

: Wat

erE

xpos

ure

Med

ium

: Sur

face

Wat

er

Exp

osur

e P

oint

CA

S N

umbe

rC

hem

ical

Min

imum

D

etec

ted

Con

cent

ratio

n

(1

)

Max

imum

D

etec

ted

Con

cent

ratio

n

(1)

Uni

tsLo

catio

n of

M

axim

um

Con

cent

ratio

n

Det

ectio

n F

requ

ency

Ran

ge o

f D

etec

tion

Lim

its

Con

cent

ratio

n U

sed

for

Scr

eeni

ng

(2)

Pot

entia

l A

RA

R/T

BC

V

alue

(3)

Scr

eeni

ng

Tox

icity

Val

ue

(5)

CO

PC

F

lag

(Y/N

)

Rat

iona

le fo

r S

elec

tion

or

Del

etio

n

(6

)

Pai

lin C

reek

ME

TA

LSS

urfa

ce W

ater

7429

-90-

5A

lum

inum

1080

1080

ug/L

PC

-2-S

W1/

720

0-20

01.

08E

+03

NV

1.60

E+

03n

1.60

E+

03N

BS

L74

40-3

6-0

Ant

imon

y0.

48 J

0.53

Jug

/LP

C-5

-SW

2/7

0.42

-0.4

25.

30E

-01

NV

6.00

E-0

1n

6.00

E-0

1N

BS

L74

40-3

8-2

Ars

enic

1.3

J3.

7 J

ug/L

PC

-11-

SW

9/9

-3.

70E

+00

NV

4.50

E-0

2c

4.50

E-0

2Y

AS

L74

40-3

9-3

Bar

ium

43.2

92ug

/LP

C-2

-SW

7/7

-9.

20E

+01

NV

2.90

E+

02n

2.90

E+

02N

BS

L74

40-7

0-2

Cal

cium

2460

042

800

ug/L

PC

-5-S

W7/

7-

4.28

E+

04N

VN

VN

VN

NU

T74

40-4

7-3

Chr

omiu

ma

0.87

J1.

7 J

ug/L

PC

-2-S

W2/

70.

6-0.

61.

70E

+00

NV

1.60

E+

03n

1.60

E+

03N

BS

L74

40-4

8-4

Cob

alt

1.7

J1.

7 J

ug/L

PC

-2-S

W1/

71-

11.

70E

+00

NV

4.70

E-0

1n

4.70

E-0

1Y

AS

L74

40-5

0-8

Cop

per

4.3

J7.

2 J

ug/L

PC

-6-S

W2/

74-

47.

20E

+00

NV

6.20

E+

01n

6.20

E+

01N

BS

L74

39-8

9-6

Iron

264

4980

ug/L

PC

-2-S

W9/

9-

4.98

E+

03N

V1.

10E

+03

n1.

10E

+03

YA

SL

7439

-92-

1Le

ad2.

52.

8ug

/LP

C-2

-SW

2/7

2-2

2.80

E+

001.

50E

+01

NV

1.50

E+

01N

BS

L74

39-9

5-4

Mag

nesi

um46

500

1040

00ug

/LP

C-5

-SW

7/7

-1.

04E

+05

NV

NV

NV

NN

UT

7439

-96-

5M

anga

nese

231

667

ug/L

PC

-2-S

W7/

7-

6.67

E+

02N

V3.

20E

+01

n3.

20E

+01

YA

SL

7440

-02-

0N

icke

l0.

51 J

0.91

Jug

/LP

C-3

4/7

0.5-

0.5

9.10

E-0

1N

V3.

00E

+01

n3.

00E

+01

NB

SL

7440

-09-

7P

otas

sium

1760

033

700

ug/L

PC

-7-S

W7/

7-

3.37

E+

04N

VN

VN

VN

NU

T74

40-2

3-5

Sod

ium

3560

0080

2000

ug/L

PC

-5-S

W7/

7-

8.02

E+

05N

VN

VN

VN

NU

T74

40-6

2-2

Van

adiu

m1.

43.

7ug

/LP

C-2

-SW

7/7

-3.

70E

+00

NV

6.30

E+

00n

6.30

E+

00N

BS

L74

40-6

6-6

Zin

c4.

2 J

11.2

Jug

/LP

C-2

-SW

7/7

-1.

12E

+01

NV

4.70

E+

02n

4.70

E+

02N

BS

LV

OC

s10

8-90

-7C

hlor

oben

zene

1 J

1 J

ug/L

PC

-6-S

W1/

70.

8-0.

81.

00E

+00

NV

7.20

E+

00n

7.20

E+

00N

BS

LS

VO

Cs

83-3

2-9

Ace

naph

then

e0.

021

J0.

037

Jug

/LP

C-3

2/7

0.00

95-0

.009

83.

70E

-02

NV

4.00

E+

01n

4.00

E+

01N

BS

L56

-55-

3B

enz[

a]an

thra

cene

0.01

7 J

0.01

7 J

ug/L

PC

-6-S

W1/

70.

0095

-0.0

098

1.70

E-0

2N

V2.

90E

-02

c2.

90E

-02

NB

SL

50-3

2-8

Ben

zo[a

]pyr

ene

0.02

2 J

0.02

2 J

ug/L

PC

-6-S

W1/

70.

0095

-0.0

098

2.20

E-0

2N

V2.

90E

-03

c2.

90E

-03

YA

SL

205-

99-2

Ben

zo[b

]fluo

rant

hene

0.02

2 J

0.03

8 J

ug/L

PC

-6-S

W2/

70.

0095

-0.0

098

3.80

E-0

2N

V2.

90E

-02

c2.

90E

-02

YA

SL

191-

24-2

Ben

zo[g

,h,i]

pery

lene

b0.

021

J0.

021

Jug

/LP

C-2

-SW

1/7

0.00

95-0

.009

82.

10E

-02

NV

8.70

E+

00n

8.70

E+

00N

BS

L20

7-08

-9B

enzo

[k]fl

uora

nthe

ne0.

016

J0.

016

Jug

/LP

C-6

-SW

1/7

0.00

95-0

.009

81.

60E

-02

NV

2.90

E-0

1c

2.90

E-0

1N

BS

L21

8-01

-9C

hrys

ene

0.02

1 J

0.02

1 J

ug/L

PC

-6-S

W1/

70.

0095

-0.0

098

2.10

E-0

2N

V2.

90E

+00

c2.

90E

+00

NB

SL

53-7

0-3

Dib

enz[

a,h]

anth

race

ne0.

026

J0.

026

Jug

/LP

C-2

-SW

1/7

0.00

95-0

.009

82.

60E

-02

NV

2.90

E-0

3c

2.90

E-0

3Y

AS

L20

6-44

-0F

luor

anth

ene

0.01

3 J

0.04

2 J

ug/L

PC

-6-S

W3/

70.

0095

-0.0

098

4.20

E-0

2N

V6.

30E

+01

n6.

30E

+01

NB

SL

86-7

3-7

Flu

oren

e0.

019

J0.

019

Jug

/LP

C-3

1/7

0.00

95-0

.009

81.

90E

-02

NV

2.20

E+

01n

2.20

E+

01N

BS

L11

8-74

-1H

exac

hlor

oben

zene

0.00

32 J

0.00

37 J

ug/L

PC

-6-S

W3/

70.

0029

-0.0

031

3.70

E-0

3N

V4.

20E

-02

c4.

20E

-02

NB

SL

193-

39-5

Inde

no[1

,2,3

-cd]

pyre

ne0.

028

J0.

028

Jug

/LP

C-2

-SW

1/7

0.00

95-0

.009

82.

80E

-02

NV

2.90

E-0

2c

2.90

E-0

2N

BS

L12

9-00

-0P

yren

e0.

012

J0.

034

Jug

/LP

C-6

-SW

2/7

0.00

95-0

.009

83.

40E

-02

NV

8.70

E+

00n

8.70

E+

00N

BS

L

Not

es:

Def

initi

ons:

(1)

J -

est

imat

ed v

alue

.A

RA

R: A

pplic

able

or

Rel

evan

t and

App

ropr

iate

Req

uire

men

ts(2

) C

once

ntra

tion

used

for

scre

enin

g is

the

max

imum

det

ecte

d co

ncen

trat

ion.

CA

S: C

hem

ical

Abs

tact

Ser

vice

(3)

No

AR

AR

val

ues

wer

e co

nsid

ered

for

this

exp

osur

e m

ediu

m.

CO

PC

: Che

mic

al o

f Pot

entia

l Con

cern

(4)

US

EP

A T

apw

ater

RS

Ls (

May

201

3); c

= C

ance

r R

SL;

n =

Non

canc

er R

SL;

NV

= N

o va

lue.

Non

canc

er R

SLs

adj

uste

d by

mul

tiply

ing

RS

L by

0.1

.N

UT

: Che

mic

al is

an

esse

ntia

l nut

rient

and

is n

ot s

cree

ned

in(5

) T

he S

cree

ning

Tox

icity

Val

ue r

epre

sent

s th

e U

SE

PA

Indu

stria

l Soi

l RS

Ls ta

ble

valu

e.R

SL:

Reg

iona

l Scr

eeni

ng L

evel

; US

EP

A, 2

013

(6)

Sel

ectio

n R

atio

nale

: A

SL

- A

bove

Scr

eeni

ng L

evel

; NT

X -

No

Tox

icity

Info

rmat

ion.

Del

etio

n R

atio

nale

: B

SL

- B

elow

Scr

eeni

ng L

evel

.T

BC

: To

Be

Con

side

red

US

EP

A: U

nite

d S

tate

s E

nviro

nmen

tal P

rote

ctio

n A

genc

ya

= R

SL

valu

e fo

r ch

rom

ium

(III

) ap

plie

d; h

exav

alen

t chr

omiu

m n

ot d

etec

ted

in a

ny s

ite s

ampl

es.

b =

RS

L fo

r py

rene

use

d.

"-"

= C

hem

ical

det

ecte

d in

100

% o

f sam

ples

.

US

EP

A T

apw

ater

R

SL

(4)

I:\V

iaco

m-T

riang

le.1

0679

\476

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00E

-04

c5.

00E

-04

YB

SL

60-5

7-1

Die

ldrin

0.00

039

J0.

0003

9 J

mg/

kgR

H-0

41/

40.

0003

3-0.

0017

3.90

E-0

4N

V2.

00E

-04

c2.

00E

-04

YA

SL

3321

3-65

-9E

ndos

ulfa

n IIb

0.00

05 J

0.00

05 J

mg/

kgR

H-0

31/

40.

0003

3-0.

0003

35.

00E

-04

NV

8.10

E-0

1n

8.10

E-0

1Y

BS

L

Not

es:

Def

initi

ons:

(1)

J -

est

imat

ed v

alue

AR

AR

: App

licab

le o

r R

elev

ant a

nd A

ppro

pria

te R

equi

rem

ents

(2)

Sel

ectio

n R

atio

nale

: N

TX

- N

o T

oxic

ity In

form

atio

n. D

elet

ion

Rat

iona

le:

NU

T -

Ess

entia

l Nut

rient

.C

OP

C: C

hem

ical

of P

oten

tial C

once

rn(3

) N

o A

RA

R v

alue

s w

ere

cons

ider

ed fo

r th

is e

xpos

ure

med

ium

.N

UT

: Che

mic

al is

an

esse

ntia

l nut

rient

and

is n

ot s

cree

ned

in(4

) U

SE

PA

Reg

ion

3 H

uman

Hea

lth R

isk

Ass

essm

ent F

ish

Tis

sue

Scr

eeni

ng L

evel

s ta

ble

(May

201

3); c

= C

ance

r R

SL;

n =

Non

canc

er R

SL;

NV

= N

o va

lue.

RS

L: R

egio

nal S

cree

ning

Lev

el; U

SE

PA

, 201

3

N

on-c

ance

r R

SLs

adj

uste

d by

mul

tiply

ing

RS

L by

0.1

.T

BC

: To

Be

Con

side

red

(5)

The

Scr

eeni

ng T

oxic

ity V

alue

rep

rese

nts

the

US

EP

A R

egio

nal S

cree

ning

Lev

el F

ish

Inge

stio

n T

able

val

ue.

US

EP

A: U

nite

d S

tate

s E

nviro

nmen

tal P

rote

ctio

n A

genc

y(6

) S

elec

tion

Rat

iona

le:

AS

L -

Abo

ve S

cree

ning

Lev

el; N

TX

- N

o T

oxic

ity In

form

atio

n. D

elet

ion

Rat

iona

le:

BS

L -

Bel

ow S

cree

ning

Lev

el

NV

- N

o va

lue

a =

Mer

cury

in c

rab

tissu

e as

sum

ed to

be

pres

ent a

s m

ethy

lmer

cury

; RS

L va

lue

for

met

hylm

ercu

ry u

sed.

b =

RS

L va

lue

for

endo

sulfa

n us

ed.

"-"

= C

hem

ical

det

ecte

d in

100

% o

f sam

ples

.

US

EP

A R

SL

for

Fis

h In

gest

ion

(4)

I:\V

iaco

m-T

riang

le.1

0679

\477

33.R

evis

ions

-To-

Ri\D

ocs\

Rep

orts

\HH

RA

\Rev

ised

HH

RA

201

4\R

AG

S T

able

2s\

RA

GS

Tab

le 2

.8 -

EU

3 C

rab

Tis

sue

Scr

een

RE

V2.

xls2

.8P

age

1 of

1O

'Brie

n &

Ger

e


ME

TALS

PC

Bs

PE

STI

CID

ES


SV

OC

s

VO

Cs


ME

TALS

PC

Bs

Pes

ticid

es

SV

OC

s

VO

Cs


ME

TALS

SV

OC

s


ME

TALS

PC

Bs

PE

STI

CID

ES

SV

OC

S

VO

CS


ME

TALS

PE

STI

CID

ES

SV

OC

s


Tabl

e 7-

9Te

rres

tria

l Exp

osur

e Ar

ea S

urfa

ce S

oil a

nd S

urfa

ce W

ater

Exp

osur

e Po

int C

once

ntra

tions

Tria

ngle

-Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

1 o

f 3

Expo

sure

Poi

nt C

once

ntra

tion

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l U

CL to

Use

Valu

eU

nits

Stat

istic

aRa

tiona

leb

SURF

ACE

SOIL

MET

ALS

7440

-36-

0An

timon

ym

g/kg

1.7E

+00

1.5E

+01

6.3E

+00

6.3E

+00

mg/

kg%

UCL

99%

KM

(Che

bysh

ev) U

CL74

40-3

8-2

Arse

nic

mg/

kg1.

3E+0

11.

3E+0

23.

8E+0

13.

8E+0

1m

g/kg

% U

CL95

% K

M (C

heby

shev

) UCL

7440

-39-

3Ba

rium

mg/

kg1.

5E+0

27.

1E+0

22.

2E+0

22.

2E+0

2m

g/kg

% U

CL95

% H

-UCL

7440

-41-

7Be

rylli

umm

g/kg

6.7E

-01

2.0E

+00

8.9E

-01

8.9E

-01

mg/

kg%

UCL

95%

Gam

ma

UCL

7440

-43-

9Ca

dmiu

mm

g/kg

4.8E

+00

6.1E

+01

3.2E

+01

3.2E

+01

mg/

kg%

UCL

95%

KM

(Che

bysh

ev) U

CL74

40-4

7-3

Chro

miu

mm

g/kg

3.7E

+01

2.5E

+02

4.9E

+01

4.9E

+01

mg/

kg%

UCL

95%

H-U

CL74

40-5

0-8

Copp

erm

g/kg

5.7E

+01

6.5E

+02

1.9E

+02

1.9E

+02

mg/

kg%

UCL

95%

Che

bysh

ev (M

ean,

Sd)

UCL

57-1

2-5

Cyan

ide

mg/

kg5.

0E-0

11.

1E+0

04.

4E-0

14.

4E-0

1m

g/kg

% U

CL95

% K

M (t

) UCL

7439

-89-

6Iro

nm

g/kg

2.9E

+04

3.6E

+05

1.0E

+05

1.0E

+05

mg/

kg%

UCL

95%

Che

bysh

ev (M

ean,

Sd)

UCL

7439

-92-

1Le

adm

g/kg

1.2E

+02

6.9E

+02

3.0E

+02

3.0E

+02

mg/

kg%

UCL

95%

Che

bysh

ev (M

ean,

Sd)

UCL

7439

-96-

5M

anga

nese

mg/

kg2.

5E+0

21.

2E+0

35.

5E+0

25.

5E+0

2m

g/kg

% U

CL95

% C

heby

shev

(Mea

n, S

d) U

CL74

39-9

7-6

Mer

cury

mg/

kg1.

4E-0

14.

5E-0

12.

6E-0

12.

6E-0

1m

g/kg

% U

CL95

% C

heby

shev

(Mea

n, S

d) U

CL74

40-0

2-0

Nic

kel

mg/

kg2.

1E+0

11.

8E+0

25.

6E+0

15.

6E+0

1m

g/kg

% U

CL95

% C

heby

shev

(Mea

n, S

d) U

CL77

82-4

9-2

Sele

nium

mg/

kg5.

3E-0

13.

1E+0

01.

1E+0

01.

1E+0

0m

g/kg

% U

CL95

% K

M (C

heby

shev

) UCL

7440

-22-

4Si

lver

mg/

kg3.

4E-0

12.

9E+0

01.

8E+0

01.

8E+0

0m

g/kg

% U

CL95

% K

M (C

heby

shev

) UCL

7440

-62-

2Va

nadi

umm

g/kg

2.4E

+01

4.1E

+01

2.7E

+01

2.7E

+01

mg/

kg%

UCL

95%

Stu

dent

's-t

UCL

7440

-66-

6Zi

ncm

g/kg

5.2E

+02

3.6E

+03

1.4E

+03

1.4E

+03

mg/

kg%

UCL

99%

Che

bysh

ev (M

ean,

Sd)

UCL

PCBs

Tota

l PCB

sm

g/kg

1.0E

+01

1.1E

+02

1.0E

+02

1.0E

+02

mg/

kg%

UCL

99%

KM

(Che

bysh

ev) U

CLPE

STIC

IDES

72-5

4-8

4-4-

DD

Dm

g/kg

2.4E

-02

1.4E

-01

5.9E

-02

5.9E

-02

mg/

kg%

UCL

97.5

% K

M (C

heby

shev

) UCL

72-5

5-9

4-4-

DD

Em

g/kg

3.4E

-01

2.6E

+00

9.3E

-01

9.3E

-01

mg/

kg%

UCL

95%

KM

(Che

bysh

ev) U

CL50

-29-

34-

4-D

DT

mg/

kg7.

3E-0

15.

5E+0

03.

6E+0

03.

6E+0

0m

g/kg

% U

CL99

% K

M (C

heby

shev

) UCL

319-

84-6

a-BH

Cm

g/kg

7.5E

-02

1.3E

-01

NA

1.3E

-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e30

9-00

-2Al

drin

mg/

kg1.

3E-0

14.

9E-0

17.

8E-0

27.

8E-0

2m

g/kg

% U

CL95

% K

M (t

) UCL

Cons

titue

nts

of C

hlor

dane

mg/

kg6.

0E-0

36.

0E-0

36.

8E-0

16.

0E-0

3m

g/kg

Max

99%

KM

(Che

bysh

ev) U

CL31

9-86

-8d-

BHC

mg/

kg2.

6E-0

24.

9E-0

22.

3E-0

22.

3E-0

2m

g/kg

% U

CL97

.5%

KM

(Che

bysh

ev) U

CL60

-57-

1D

ield

rinm

g/kg

2.5E

-02

6.7E

-02

1.2E

-02

1.2E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL95

9-98

-8En

dosu

lfan

Im

g/kg

1.2E

-01

3.1E

-01

5.5E

-02

5.5E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL33

213-

65-9

Endo

sulfa

n II

mg/

kg8.

4E-0

48.

9E-0

45.

8E-0

45.

8E-0

4m

g/kg

% U

CL95

% K

M (t

) UCL

1031

-07-

8En

dosu

lfan

Sulfa

tem

g/kg

7.3E

-02

8.0E

-02

1.7E

-02

1.7E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL72

-20-

8En

drin

mg/

kg2.

3E-0

26.

4E-0

21.

1E-0

21.

1E-0

2m

g/kg

% U

CL95

% K

M (t

) UCL

7421

-93-

4En

drin

Ald

ehyd

em

g/kg

9.7E

-02

4.7E

-01

2.9E

-01

2.9E

-01

mg/

kg%

UCL

99%

KM

(Che

bysh

ev) U

CL76

-44-

8H

epta

chlo

rm

g/kg

3.0E

-03

1.0E

-02

1.8E

-03

1.8E

-03

mg/

kg%

UCL

95%

KM

(t) U

CL


Tabl

e 7-

9Te

rres

tria

l Exp

osur

e Ar

ea S

urfa

ce S

oil a

nd S

urfa

ce W

ater

Exp

osur

e Po

int C

once

ntra

tions

Tria

ngle

-Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

2 o

f 3

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l U

CL to

Use

Expo

sure

Poi

nt C

once

ntra

tion

Valu

eU

nits

Stat

istic

aRa

tiona

leb

1024

-57-

3H

epta

chlo

r Epo

xide

mg/

kg2.

0E-0

34.

6E-0

31.

2E-0

31.

2E-0

3m

g/kg

% U

CL95

% K

M (t

) UCL

58-8

9-9

Lind

ane

mg/

kg4.

5E-0

39.

8E-0

32.

4E-0

32.

4E-0

3m

g/kg

% U

CL95

% K

M (t

) UCL

72-4

3-5

Met

hoxy

chlo

rm

g/kg

4.3E

-01

1.2E

+00

2.0E

-01

2.0E

-01

mg/

kg%

UCL

95%

KM

(t) U

CLSV

OCs 98

-86-

2Ac

etop

heno

nem

g/kg

1.8E

-01

3.2E

-01

NA

3.2E

-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e11

7-81

-7bi

s(2-

Ethy

lhex

yl)P

htha

late

mg/

kg1.

6E+0

17.

3E+0

13.

9E+0

13.

9E+0

1m

g/kg

% U

CL95

% K

M (C

heby

shev

) UCL

86-7

4-8

Carb

azol

em

g/kg

5.2E

+00

1.1E

+01

3.2E

+00

3.2E

+00

mg/

kg%

UCL

95%

KM

(t) U

CL13

2-64

-9D

iben

zofu

ran

mg/

kg3.

5E+0

01.

2E+0

13.

0E+0

03.

0E+0

0m

g/kg

% U

CL95

% K

M (t

) UCL

117-

84-0

di-n

-Oct

ylPh

thal

ate

mg/

kg2.

7E+0

05.

1E+0

04.

7E+0

04.

7E+0

0m

g/kg

% U

CL99

% K

M (C

heby

shev

) UCL

108-

95-2

Phen

olm

g/kg

1.1E

+00

1.3E

+00

4.0E

-01

4.0E

-01

mg/

kg%

UCL

95%

KM

(t) U

CLLo

w M

olec

ular

Wei

ght P

AHs

mg/

kg2.

8E+0

12.

5E+0

21.

6E+0

21.

6E+0

2m

g/kg

% U

CL99

% K

M (C

heby

shev

) UCL

Hig

h M

olec

ular

Wei

ght P

AHs

mg/

kg5.

8E+0

17.

7E+0

24.

3E+0

24.

3E+0

2m

g/kg

% U

CL99

% K

M (C

heby

shev

) UCL

VOCs 71

-55-

61,

1,1-

Tric

hlor

oeth

ane

mg/

kg7.

5E-0

38.

0E-0

33.

0E-0

33.

0E-0

3m

g/kg

% U

CL95

% K

M (t

) UCL

100-

52-7

Benz

alde

hyde

mg/

kg6.

8E-0

11.

7E+0

05.

5E-0

15.

5E-0

1m

g/kg

% U

CL95

% K

M (t

) UCL

98-8

2-8

Isop

ropy

lben

zene

mg/

kg9.

1E-0

29.

1E-0

2N

A9.

1E-0

2m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

127-

18-4

Tetr

achl

oroe

then

em

g/kg

1.0E

-02

1.6E

-02

4.6E

-03

4.6E

-03

mg/

kg%

UCL

95%

KM

(t) U

CLSU

RFAC

E W

ATER

MET

ALS

7440

-38-

2Ar

seni

cg/

L1.

4E+0

11.

4E+0

1N

A1.

4E-0

2m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7440

-39-

3Ba

rium

g/L

2.2E

+02

2.2E

+02

NA

2.2E

-01

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

40-4

3-9

Cadm

ium

g/L

9.8E

+00

9.8E

+00

NA

9.8E

-03

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

40-4

8-4

Coba

ltg/

L6.

6E+0

06.

6E+0

0N

A6.

6E-0

3m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7440

-50-

8Co

pper

g/L

4.4E

+02

4.4E

+02

NA

4.4E

-01

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

39-8

9-6

Iron

g/L

4.5E

+04

4.5E

+04

NA

4.5E

+01

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

39-9

2-1

Lead

g/L

4.0E

+02

4.0E

+02

NA

4.0E

-01

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

39-9

6-5

Man

gane

seg/

L6.

1E+0

26.

1E+0

2N

A6.

1E-0

1m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7440

-02-

0N

icke

lg/

L2.

8E+0

12.

8E+0

1N

A2.

8E-0

2m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7782

-49-

2Se

leni

umg/

L4.

7E-0

14.

7E-0

1N

A4.

7E-0

4m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7440

-22-

4Si

lver

g/L

2.2E

+00

2.2E

+00

NA

2.2E

-03

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n74

40-6

6-6

Zinc

g/L

2.1E

+03

2.1E

+03

NA

2.1E

+00

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

nPC

BsTo

tal P

CBs

g/L

2.0E

-01

2.0E

-01

NA

2.0E

-04

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

nPE

STIC

IDES

72-5

5-9

4-4-

DDE

g/L

9.1E

-03

9.1E

-03

NA

9.1E

-06

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n50

-29-

34-

4-DD

Tg/

L1.

8E-0

21.

8E-0

2N

A1.

8E-0

5m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion


Tabl

e 7-

9Te

rres

tria

l Exp

osur

e Ar

ea S

urfa

ce S

oil a

nd S

urfa

ce W

ater

Exp

osur

e Po

int C

once

ntra

tions

Tria

ngle

-Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

3 o

f 3

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l U

CL to

Use

Expo

sure

Poi

nt C

once

ntra

tion

Valu

eU

nits

Stat

istic

aRa

tiona

leb

SVO

CsBi

s(2-

Ethy

lhex

yl) P

htha

late

g/L

8.0E

+00

8.0E

+00

NA

8.0E

-03

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

nLo

w M

olec

ular

Wei

ght P

AHs

g/L

1.1E

-02

1.1E

-02

NA

1.1E

-05

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n11

7-81

-7

High

Mol

ecul

ar W

eigh

t PAH

sg/

L2.

3E-0

22.

3E-0

2N

A2.

3E-0

5m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

VOCs 15

6-59

-2ci

s-1,

2-Di

chlo

roet

hyle

neg/

L8.

0E+0

08.

0E+0

0N

A8.

0E-0

3m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

108-

88-3

Tolu

ene

g/L

9.0E

+00

9.0E

+00

NA

9.0E

-03

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

n

Not

es:

a: M

ax -

max

imum

det

ecte

d co

ncen

trat

ion;

%U

CL -

% u

pper

con

fiden

ce li

mit.

b: P

roU

CL d

oes

not p

rovi

de 9

5% U

CLs

whe

n th

ere

are

insu

ffic

ient

dat

a, a

s de

fined

by

few

er th

an 3

sam

ples

or f

ewer

than

2 u

niqu

e de

tect

ed s

ampl

es. I

n th

ese

case

s, th

e EP

C is

obt

aine

d by

usi

ng th

e m

axim

um d

etec

ted

conc

entr

atio

n.N

A =

Not

Ava

ilabl

e; U

CL c

ould

not

be

calc

ulat

ed b

ecau

se o

f low

sam

ple

num

ber o

r low

det

ectio

n fr

eque

ncy.

UCL

bas

ed o

n U

SEPA

Pro

UCL

(V. 5

.0; U

SEPA

201

3) re

com

men

datio

n, u

sing

Reg

ress

ion

on O

rder

Sta

tistic

s (R

OS)

for e

valu

atin

g da

ta w

ith n

on-d

etec

t (N

D) s

ampl

es. I

t is

poss

ible

that

in c

erta

in in

stan

ces,

the

calc

ulat

ed 9

5% U

CL is

sm

alle

r tha

n th

e m

ean

dete

cted

co

ncen

trat

ion.

Thi

s re

flect

s a

low

det

ectio

n fr

eque

ncy

and

non-

dete

ct s

ampl

es la

rgel

y ou

tnum

berin

g de

tect

ed s

ampl

es, c

ausi

ng th

e 95

% U

CL re

com

men

ded

by P

roU

CL V

5.0

to b

e sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n, s

ince

it re

flect

s th

e la

rge

num

ber

of n

on-d

etec

t sam

ples

.Ch

ebys

hev

(Mea

n, S

d) U

CL =

(1-

)100

% U

CL o

f the

mea

n ba

sed

upon

the

Cheb

yshe

v Th

eore

m (u

sing

the

sam

ple

mea

n an

d sa

mpl

e st

anda

rd d

evia

tion

- non

-par

amet

ric).

Gam

ma

UCL

= C

ompu

tatio

n of

UCL

of t

he m

ean

of a

am

ma,

G(k

,) d

istr

ibut

ion

(par

amet

ric).

H-U

CL =

(1-

)100

% U

CL o

f the

mea

n ba

sed

upon

H-s

tatis

tic (H

-UCL

) (pa

ram

etric

).KM

(BCA

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng th

e bi

as c

orre

cted

acc

eler

ated

per

cent

ile b

oots

trap

met

hod

(non

-par

amet

ric).

KM (C

heby

shev

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng th

e Ch

ebys

hev

ineq

ualit

y (n

on-p

aram

etric

).KM

(t) U

CL =

UCL

bas

ed u

pon

Kapl

an-M

eier

est

imat

es u

sing

stu

dent

’s t-

dist

ribut

ion

criti

cal v

alue

(non

-par

amet

ric).

Stud

ent's

-t U

CL =

Com

puta

tion

met

hod

base

d up

on s

tude

nt’s

t-di

strib

utio

n (p

aram

etric

).


o

f 1

Tabl

e 7-

10Aq

uatic

Exp

osur

e Ar

ea S

urfa

ce W

ater

Exp

osur

e Po

int C

once

ntra

tions

Tria

ngle

-Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

aEx

posu

re P

oint

Con

cent

ratio

nCA

S N

umbe

rCo

nstit

uent

s of

Con

cern

Uni

tsAv

erag

e D

etec

ted

Conc

entr

atio

nM

axim

um D

etec

ted

Conc

entr

atio

nPo

tent

ial

UCL

to U

seVa

lue

Uni

tsSt

atis

tica

Ratio

nale

bM

ETAL

S 7440

-38-

2Ar

seni

cug

/L2.

1E+0

03.

7E+0

02.

5E+0

02.

5E-0

3m

g/L

% U

CL95

% S

tude

nt's

-t U

CL74

40-3

9-3

Bariu

mug

/L5.

8E+0

19.

2E+0

16.

8E+0

16.

8E-0

2m

g/L

% U

CL95

% S

tude

nt's

-t U

CL74

40-5

0-8

Copp

erug

/L5.

8E+0

07.

2E+0

05.

5E+0

05.

5E-0

3m

g/L

% U

CL95

% K

M (t

) UCL

7439

-89-

6Iro

nug

/L1.

1E+0

35.

0E+0

33.

0E+0

33.

0E+0

0m

g/L

% U

CL95

% C

heby

shev

(Mea

n, S

d) U

CL74

39-9

2-1

Lead

ug/L

2.7E

+00

2.8E

+00

2.6E

+00

2.6E

-03

mg/

L%

UCL

95%

KM

(t) U

CL74

39-9

6-5

Man

gane

seug

/L3.

2E+0

26.

7E+0

24.

1E+0

24.

1E-0

1m

g/L

% U

CL95

% S

tude

nt's

-t U

CL74

40-0

2-0

Nic

kel

ug/L

7.1E

-01

9.1E

-01

7.0E

-01

7.0E

-04

mg/

L%

UCL

95%

KM

(t) U

CL74

40-6

6-6

Zinc

ug/L

7.0E

+00

1.1E

+01

8.4E

+00

8.4E

-03

mg/

L%

UCL

95%

KM

(t) U

CLSV

OCs

Hex

achl

orob

enze

neug

/L3.

5E-0

33.

7E-0

33.

4E-0

33.

4E-0

6m

g/L

% U

CL95

% K

M (t

) UCL

Low

Mol

ecul

ar W

eigh

t PAH

sug

/L3.

8E-0

27.

7E-0

26.

4E-0

26.

4E-0

5m

g/L

% U

CL95

% K

M (P

erce

ntile

Boo

tstr

ap) U

CL11

8-74

-1

Hig

h M

olec

ular

Wei

ght P

AHs

ug/L

7.6E

-02

1.5E

-01

9.9E

-02

9.9E

-05

mg/

L%

UCL

95%

KM

(t) U

CLN

otes

:a:

Max

- m

axim

um d

etec

ted

conc

entr

atio

n; %

UCL

- %

upp

er c

onfid

ence

lim

it.b:

Pro

UCL

doe

s no

t pro

vide

95%

UCL

s w

hen

ther

e ar

e in

suff

icie

nt d

ata,

as

defin

ed b

y fe

wer

than

3 s

ampl

es o

r few

er th

an 2

uni

que

dete

cted

sam

ples

. In

thes

e ca

ses,

the

EPC

is o

btai

ned

by u

sing

the

max

imum

det

ecte

d co

ncen

trat

ion.

NA

= N

ot A

vaila

ble;

UCL

cou

ld n

ot b

e ca

lcul

ated

bec

ause

of l

ow s

ampl

e nu

mbe

r or l

ow d

etec

tion

freq

uenc

y.U

CL b

ased

on

USE

PA P

roU

CL (V

. 5.0

; USE

PA 2

013)

reco

mm

enda

tion,

usi

ng R

egre

ssio

n on

Ord

er S

tatis

tics

(RO

S) fo

r eva

luat

ing

data

with

non

-det

ect (

ND

) sam

ples

.It

is p

ossi

ble

that

in c

erta

in in

stan

ces,

the

calc

ulat

ed 9

5% U

CL is

sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n. T

his

refle

cts

a lo

w d

etec

tion

freq

uenc

y an

d no

n-de

tect

sam

ples

larg

ely

outn

umbe

ring

dete

cted

sam

ples

, cau

sing

the

95%

U

CL re

com

men

ded

by P

roU

CL V

5.0

to b

e sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n, s

ince

it re

flect

s th

e la

rge

num

ber o

f non

-det

ect s

ampl

es.

Cheb

yshe

v (M

ean,

Sd)

UCL

= (1

- )1

00%

UCL

of t

he m

ean

base

d up

on th

e Ch

ebys

hev

Theo

rem

(usi

ng th

e sa

mpl

e m

ean

and

sam

ple

stan

dard

dev

iatio

n - n

on-p

aram

etric

). KM

(Per

cent

ile B

oots

trap

) UCL

- (1

-) 1

00%

UCL

of t

he M

ean

Base

d U

pon

Sim

ple

Perc

entil

e Bo

otst

rap

Met

hod

(non

-par

amet

ric).

KM (t

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng s

tude

nt’s

t-di

strib

utio

n cr

itica

l val

ue (n

on-p

aram

etric

). St

uden

t's-t

UCL

= C

ompu

tatio

n m

etho

d ba

sed

upon

st

uden

t’s t-

dist

ribut

ion

(par

amet

ric).


Tabl

e 7-

11Aq

uatic

Exp

osur

e Ar

ea S

urfa

ce S

edim

ent E

xpos

ure

Poin

t Con

cent

ratio

nsTr

iang

le-P

acifi

c Si

teEl

izab

eth

City

, Nor

th C

arol

ina

Page

1 o

f 2

Expo

sure

Poi

nt C

once

ntra

tion

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l U

CL to

Use

Valu

eU

nits

Stat

istic

aRa

tiona

leb

METALS

7440

-38-

2Ar

seni

cm

g/kg

8.7E

+00

2.5E

+01

1.3E

+01

1.3E

+01

mg/

kg%

UCL

95%

App

roxi

mat

e G

amm

a U

CL74

40-3

9-3

Bariu

mm

g/kg

1.3E

+02

3.2E

+02

1.8E

+02

1.8E

+02

mg/

kg%

UCL

95%

App

roxi

mat

e G

amm

a U

CL74

40-4

1-7

Bery

llium

mg/

kg1.

0E+0

01.

6E+0

01.

2E+0

01.

2E+0

0m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-4

3-9

Cadm

ium

mg/

kg8.

7E-0

13.

4E+0

01.

7E+0

01.

7E+0

0m

g/kg

% U

CL95

% A

ppro

xim

ate

Gam

ma

UCL

7440

-47-

3Ch

rom

ium

mg/

kg6.

3E+0

12.

6E+0

29.

8E+0

19.

8E+0

1m

g/kg

% U

CL95

% A

ppro

xim

ate

Gam

ma

UCL

7440

-48-

4Co

balt

mg/

kg1.

2E+0

13.

2E+0

11.

7E+0

11.

7E+0

1m

g/kg

% U

CL95

% A

ppro

xim

ate

Gam

ma

UCL

7440

-50-

8Co

pper

mg/

kg3.

0E+0

15.

7E+0

13.

8E+0

13.

8E+0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

39-8

9-6

Iron

mg/

kg2.

1E+0

43.

1E+0

42.

6E+0

42.

6E+0

4m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

39-9

2-1

Lead

mg/

kg5.

5E+0

11.

5E+0

28.

3E+0

18.

3E+0

1m

g/kg

% U

CL95

% A

ppro

xim

ate

Gam

ma

UCL

7439

-96-

5M

anga

nese

mg/

kg1.

9E+0

23.

2E+0

22.

3E+0

22.

3E+0

2m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

39-9

7-6

Mer

cury

mg/

kg1.

0E-0

12.

0E-0

11.

4E-0

11.

4E-0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-0

2-0

Nic

kel

mg/

kg2.

3E+0

13.

6E+0

12.

8E+0

12.

8E+0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL77

82-4

9-2

Sele

nium

mg/

kg6.

9E-0

11.

3E+0

09.

1E-0

19.

1E-0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-2

2-4

Silv

erm

g/kg

3.6E

-01

1.3E

+00

7.2E

-01

7.2E

-01

mg/

kg%

UCL

95%

App

roxi

mat

e G

amm

a U

CL74

40-2

8-0

Thal

lium

mg/

kg4.

1E-0

19.

4E-0

15.

6E-0

15.

6E-0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-6

2-2

Vana

dium

mg/

kg4.

0E+0

17.

7E+0

15.

1E+0

15.

1E+0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-6

6-6

Zinc

mg/

kg1.

8E+0

26.

7E+0

24.

5E+0

24.

5E+0

2m

g/kg

% U

CL95

% C

heby

shev

(Mea

n, S

d) U

CLPC

BsTo

tal P

CBs

mg/

kg2.

8E-0

15.

6E-0

1N

A5.

6E-0

1m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

PESTICIDES

72-5

4-8

4-4-

DD

Dm

g/kg

3.1E

-02

6.2E

-02

3.7E

-02

3.7E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL72

-55-

94-

4-D

DE

mg/

kg4.

7E-0

21.

6E-0

17.

5E-0

27.

2E-0

2m

g/kg

% U

CL95

% K

M (B

CA) U

CL50

-29-

34-

4-D

DT

mg/

kg1.

7E-0

11.

1E+0

06.

8E-0

16.

8E-0

1m

g/kg

% U

CL95

% K

M (C

heby

shev

) 30

9-00

-2Al

drin

mg/

kg4.

2E-0

27.

2E-0

25.

4E-0

25.

4E-0

2m

g/kg

% U

CLU

CL 9

5% K

M (t

) UCL

Cons

titue

nts

of C

hlor

dane

mg/

kg1.

4E-0

22.

8E-0

22.

1E-0

22.

1E-0

2m

g/kg

% U

CL95

% K

M (t

) UCL

60-5

7-1

Die

ldrin

mg/

kg1.

1E-0

12.

6E-0

11.

0E-0

11.

0E-0

1m

g/kg

% U

CL95

% K

M (t

) UCL

1031

-07-

8En

dosu

lfan

Sulfa

tem

g/kg

2.0E

-02

2.0E

-02

NA

2.0E

-02

mg/

kgM

axM

axim

um D

etec

ted

Conc

entr

atio

n 72

-20-

8En

drin

mg/

kg4.

0E-0

34.

0E-0

3N

A4.

0E-0

3m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7421

-93-

4En

drin

Ald

ehyd

em

g/kg

2.4E

-02

6.9E

-02

3.0E

-02

3.0E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL76

-44-

8H

epta

chlo

rm

g/kg

9.8E

-03

1.3E

-02

1.1E

-02

1.1E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL10

24-5

7-3

Hep

tach

lor E

poxi

dem

g/kg

2.7E

-02

5.8E

-02

3.5E

-02

3.5E

-02

mg/

kg%

UCL

95%

KM

(t) U

CL58

-89-

9Li

ndan

em

g/kg

1.4E

-02

2.6E

-02

3.0E

-02

2.6E

-02

mg/

kgM

axM

axim

um D

etec

ted

Conc

entr

atio

n 72

-43-

5M

etho

xych

lor

mg/

kg1.

8E-0

21.

8E-0

2N

A1.

8E-0

2m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

SVOCs

132-

64-9

Dib

enzo

fura

nm

g/kg

1.

7E+0

02.

8E+0

02.

8E+0

02.

8E+0

0m

g/kg

% U

CL95

% K

M (B

CA) U

CLLo

w M

olec

ular

Wei

ght P

AHs

mg/

kg2.

2E+0

11.

3E+0

28.

3E+0

18.

3E+0

1m

g/kg

% U

CL95

% K

M (C

heby

shev

) H

igh

Mol

ecul

ar W

eigh

t PAH

sm

g/kg

2.1E

+01

1.5E

+02

1.9E

+02

1.5E

+02

mg/

kgM

axU

CL M

axim

um D

etec

ted

Conc

entr

atio

nVO

Cs95

-50-

11,

2-D

ichl

orob

enze

nem

g/kg

1.4E

-02

1.4E

-02

NA

1.4E

-02

mg/

kgM

axM

axim

um D

etec

ted

Conc

entr

atio

n


Tabl

e 7-

11Aq

uatic

Exp

osur

e Ar

ea S

urfa

ce S

edim

ent E

xpos

ure

Poin

t Con

cent

ratio

nsTr

iang

le-P

acifi

c Si

teEl

izab

eth

City

, Nor

th C

arol

ina

Page

2 o

f 2

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l U

CL to

Use

Expo

sure

Poi

nt C

once

ntra

tion

Valu

eU

nits

Stat

istic

aRa

tiona

leb

541-

73-1

1,3-

Dic

hlor

oben

zene

mg/

kg3.

0E-0

33.

0E-0

3N

A5.

9E-0

1m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

106-

46-7

1,4-

Dic

hlor

oben

zene

mg/

kg1.

1E-0

21.

1E-0

2N

A5.

9E-0

1m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

100-

52-7

Benz

alde

hyde

mg/

kg5.

9E-0

15.

9E-0

1N

A5.

9E-0

1m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

75-1

5-0

Carb

on D

isul

fide

mg/

kg4.

0E-0

34.

0E-0

3N

A4.

0E-0

3m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

108-

90-7

Chlo

robe

nzen

em

g/kg

5.4E

+00

5.4E

+00

NA

5.4E

+00

mg/

kgM

axM

axim

um D

etec

ted

Conc

entr

atio

n11

0-82

-7Cy

cloh

exan

em

g/kg

2.0E

-03

2.0E

-03

NA

2.0E

-03

mg/

kgM

axM

axim

um D

etec

ted

Conc

entr

atio

n75

-65-

0te

rt-B

utyl

Alco

hol

mg/

kg1.

4E-0

11.

4E-0

1N

A1.

4E-0

1m

g/kg

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

Not

es:

a: M

ax -

max

imum

det

ecte

d co

ncen

trat

ion;

%U

CL -

% u

pper

con

fiden

ce li

mit.

b: P

roU

CL d

oes

not p

rovi

de 9

5% U

CLs

whe

n th

ere

are

insu

ffic

ient

dat

a, a

s de

fined

by

few

er th

an 3

sam

ples

or f

ewer

than

2 u

niqu

e de

tect

ed s

ampl

es. I

n th

ese

case

s, th

e EP

C is

obt

aine

d by

usi

ng th

e m

axim

um d

etec

ted

conc

entr

atio

n.N

A =

Not

Ava

ilabl

e; U

CL c

ould

not

be

calc

ulat

ed b

ecau

se o

f low

sam

ple

num

ber o

r low

det

ectio

n fr

eque

ncy.

UCL

bas

ed o

n U

SEPA

Pro

UCL

(V. 5

.0; U

SEPA

201

3) re

com

men

datio

n, u

sing

Reg

ress

ion

on O

rder

Sta

tistic

s (R

OS)

for e

valu

atin

g da

ta w

ith n

on-d

etec

t (N

D) s

ampl

es.

It is

pos

sibl

e th

at in

cer

tain

inst

ance

s, th

e ca

lcul

ated

95%

UCL

is s

mal

ler t

han

the

mea

n de

tect

ed c

once

ntra

tion.

Thi

s re

flect

s a

low

det

ectio

n fr

eque

ncy

and

non-

dete

ct s

ampl

es la

rgel

y ou

tnum

berin

g de

tect

ed s

ampl

es,

caus

ing

the

95%

UCL

reco

mm

ende

d by

Pro

UCL

V5.

0 to

be

smal

ler t

han

the

mea

n de

tect

ed c

once

ntra

tion,

sin

ce it

refle

cts

the

larg

e nu

mbe

r of n

on-d

etec

t sam

ples

.Ch

ebys

hev

(Mea

n, S

d) U

CL =

(1-

)100

% U

CL o

f the

mea

n ba

sed

upon

the

Cheb

yshe

v Th

eore

m (u

sing

the

sam

ple

mea

n an

d sa

mpl

e st

anda

rd d

evia

tion

- non

-par

amet

ric).

Gam

ma

UCL

=

Com

puta

tion

of U

CL o

f the

mea

n of

a G

amm

a, G

(k,

) dis

trib

utio

n (p

aram

etric

).KM

(BCA

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng th

e bi

as c

orre

cted

acc

eler

ated

per

cent

ile b

oots

trap

met

hod

(non

-par

amet

ric).

KM (C

heby

shev

) UCL

=

UCL

bas

ed u

pon

Kapl

an-M

eier

est

imat

es u

sing

the

Cheb

yshe

v in

equa

lity

(non

-par

amet

ric).

KM (t

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng s

tude

nt’s

t-di

strib

utio

n cr

itica

l val

ue (n

on-p

aram

etric

). St

uden

t's-t

UCL

= C

ompu

tatio

n m

etho

d ba

sed

upon

stu

dent

’s t-

dist

ribut

ion

(par

amet

ric).


o

f 1

Tabl

e 7-

12Sh

allo

w G

roun

dwat

er E

xpos

ure

Poin

t Con

cent

ratio

nsTr

iang

le-P

acifi

c Si

teEl

izab

eth

City

, Nor

th C

arol

ina

Expo

sure

Poi

nt C

once

ntra

tion

CAS

Num

ber

Cons

titue

nts o

f Con

cern

Uni

tsAv

erag

e De

tect

ed

Conc

entr

atio

nM

axim

um D

etec

ted

Conc

entr

atio

nPo

tent

ial U

CLto

Use

Valu

eU

nits

Stat

istic

aRa

tiona

leb

MET

ALS 7440

-38-

2Ar

seni

cug

/L1.

5E+0

22.

9E+0

22.

3E+0

22.

3E-0

1m

g/L

% U

CL95

% K

M (t

) UCL

7440

-39-

3Ba

rium

ug/L

1.4E

+02

2.4E

+02

2.0E

+02

2.0E

-01

mg/

L%

UCL

95%

App

roxi

mat

e Ga

mm

a U

CL74

40-5

0-8

Copp

erug

/L5.

7E-0

16.

3E-0

16.

0E-0

16.

0E-0

4m

g/L

% U

CL95

% K

M (t

) UCL

7439

-89-

6Iro

nug

/L5.

5E+0

49.

7E+0

49.

1E+0

49.

1E+0

1m

g/L

% U

CL95

% S

tude

nt's-

t UCL

7439

-92-

1Le

adug

/L1.

5E-0

12.

1E-0

11.

8E-0

11.

8E-0

4m

g/L

% U

CL95

% S

tude

nt's-

t UCL

7439

-96-

5M

anga

nese

ug/L

6.6E

+02

1.4E

+03

1.7E

+03

1.4E

+00

mg/

L%

UCL

95%

Che

bysh

ev (M

ean,

Sd)

UCL

7439

-97-

6M

ercu

ryug

/L3.

4E-0

23.

4E-0

2N

A3.

4E-0

5m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

7440

-02-

0N

icke

lug

/L1.

4E+0

01.

7E+0

01.

7E+0

01.

7E-0

3m

g/L

% U

CL95

% K

M (t

) UCL

7440

-66-

6Zi

ncug

/L8.

2E+0

01.

5E+0

11.

1E+0

11.

1E-0

2m

g/L

% U

CL95

% S

tude

nt's-

t UCL

PEST

ICID

ES72

-54-

84-

4-DD

Dug

/L5.

5E-0

35.

5E-0

3N

A5.

5E-0

6m

g/L

Max

Max

imum

Det

ecte

d Co

ncen

trat

ion

Cons

titue

nts o

f Chl

orda

neug

/L3.

1E-0

33.

1E-0

33.

7E-0

33.

1E-0

6m

g/L

% U

CL95

% K

M (t

) UCL

1024

-57-

3He

ptac

hlor

Epo

xide

ug/L

2.5E

-03

2.5E

-03

NA

2.5E

-06

mg/

LM

axM

axim

um D

etec

ted

Conc

entr

atio

nSV

OCs

Low

Mol

ecul

ar W

eigh

t PAH

sug

/L2.

0E-0

13.

5E-0

12.

8E-0

12.

8E-0

4m

g/L

% U

CL95

% K

M (P

erce

ntile

Boo

tstr

ap) U

CL

Not

es:

a: M

ax -

max

imum

det

ecte

d co

ncen

trat

ion;

%U

CL -

% u

pper

con

fiden

ce li

mit.

b: P

roU

CL d

oes n

ot p

rovi

de 9

5% U

CLs w

hen

ther

e ar

e in

suffi

cien

t dat

a, a

s def

ined

by

few

er th

an 3

sam

ples

or f

ewer

than

2 u

niqu

e de

tect

ed sa

mpl

es. I

n th

ese

case

s, th

e EP

C is

obta

ined

by

usin

g th

e m

axim

um d

etec

ted

conc

entr

atio

n.U

CL b

ased

on

USE

PA P

roU

CL (V

. 5.0

; USE

PA 2

013)

reco

mm

enda

tion,

usin

g Re

gres

sion

on O

rder

Sta

tistic

s (RO

S) fo

r eva

luat

ing

data

with

non

-det

ect (

ND)

sam

ples

.It

is po

ssib

le th

at in

cer

tain

inst

ance

s, th

e ca

lcul

ated

95%

UCL

is sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n. T

his r

efle

cts

a lo

w d

etec

tion

freq

uenc

y an

d no

n-de

tect

sam

ples

larg

ely

outn

umbe

ring

dete

cted

sam

ples

, cau

sing

the

95%

UCL

re

com

men

ded

by P

roU

CL V

5.0

to b

e sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n, si

nce

it re

flect

s the

larg

e nu

mbe

r of n

on-d

etec

t sam

ples

.N

A =

Not

Ava

ilabl

e; U

CL c

ould

not

be

calc

ulat

ed b

ecau

se o

f low

sam

ple

num

ber o

r low

det

ectio

n fr

eque

ncy.

KM (t

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usin

g st

uden

t’s t-

dist

ribut

ion

criti

cal v

alue

(non

-par

amet

ric).

KM (P

erce

ntile

Boo

tstr

ap) U

CL -

(1-

) 100

% U

CL o

f the

Mea

n Ba

sed

Upo

n Si

mpl

e Pe

rcen

tile

Boot

stra

p M

etho

d (n

on-p

aram

etric

). St

uden

t's-t

UCL

= C

ompu

tatio

n m

etho

d ba

sed

upon

stud

ent’s

t-di

strib

utio

n (p

aram

etric

).Ch

ebys

hev

(Mea

n, S

d) U

CL =

(1-

)100

% U

CL o

f the

mea

n ba

sed

upon

the

Cheb

yshe

v Th

eore

m (u

sing

the

sam

ple

mea

n an

d sa

mpl

e st

anda

rd d

evia

tion

- non

-par

amet

ric).

Gam

ma

UCL

= C

ompu

tatio

n of

UCL

of t

he m

ean

of a

Gam

ma,

G(k

,) d

istrib

utio

n (p

aram

etric

).


o

f 1

Tabl

e 7-

13Te

rres

tria

l Inv

erte

brat

e Ti

ssue

Exp

osur

e Po

int C

once

ntra

tions

Tria

ngle

-Pac

ific

Corp

orat

ion

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Expo

sure

Poi

nt C

once

ntra

tion

CAS

Num

ber

Cons

titue

nts

of C

once

rnU

nits

Aver

age

Det

ecte

d Co

ncen

trat

ion

Max

imum

Det

ecte

d Co

ncen

trat

ion

Pote

ntia

l UCL

to U

seVa

lue

Uni

tsSt

atis

tica

Ratio

nale

b

MET

ALS

7440

-36-

0An

timon

ym

g/kg

5.2E

-01

5.2E

-01

NA

5.2E

-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-3

8-2

Arse

nic

mg/

kg1.

3E+0

01.

6E+0

01.

3E+0

01.

3E+0

0m

g/kg

% U

CL95

% K

M (t

) UCL

7440

-39-

3Ba

rium

mg/

kg3.

3E+0

11.

1E+0

26.

3E+0

16.

3E+0

1m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-4

3-9

Cadm

ium

mg/

kg3.

7E+0

06.

8E+0

05.

3E+0

05.

3E+0

0m

g/kg

% U

CL95

% K

M (t

) UCL

7440

-47-

3Ch

rom

ium

mg/

kg1.

8E+0

04.

1E+0

02.

5E+0

02.

5E+0

0m

g/kg

% U

CL95

% K

M (t

) UCL

7440

-50-

8Co

pper

mg/

kg1.

2E+0

15.

8E+0

15.

5E+0

15.

5E+0

1m

g/kg

% U

CL95

% A

djus

ted

Gam

ma

UCL

7439

-89-

6Iro

nm

g/kg

7.2E

+02

2.8E

+03

3.1E

+03

2.8E

+03

mg/

kgM

ax95

% A

djus

ted

Gam

ma

UCL

7439

-92-

1Le

adm

g/kg

2.0E

+01

8.1E

+01

4.0E

+01

4.0E

+01

mg/

kg%

UCL

95%

KM

(t) U

CL74

39-9

6-5

Man

gane

sem

g/kg

2.1E

+01

4.2E

+01

3.1E

+01

3.1E

+01

mg/

kg%

UCL

95%

Stu

dent

's-t

UCL

7439

-97-

6M

ercu

rym

g/kg

1.1E

-01

2.2E

-01

1.5E

-01

1.5E

-01

mg/

kg%

UCL

95%

KM

(t) U

CL74

40-0

2-0

Nic

kel

mg/

kg1.

0E+0

02.

4E+0

01.

4E+0

01.

4E+0

0m

g/kg

% U

CL95

% K

M (t

) UCL

7782

-49-

2Se

leni

umm

g/kg

2.5E

+00

6.3E

+00

4.0E

+00

4.0E

+00

mg/

kg%

UCL

95%

KM

(t) U

CL74

40-2

2-4

Silv

erm

g/kg

4.2E

-01

4.2E

-01

NA

4.2E

-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-6

2-2

Vana

dium

mg/

kg7.

9E-0

11.

6E+0

01.

4E+0

01.

4E+0

0m

g/kg

% U

CL99

% K

M (C

heby

shev

) UCL

7440

-66-

6Zi

ncm

g/kg

1.4E

+02

3.2E

+02

2.3E

+02

2.3E

+02

mg/

kg%

UCL

95%

Stu

dent

's-t

UCL

PCBs

Tota

l PCB

sm

g/kg

8.9E

-01

2.3E

+00

1.1E

+00

1.1E

+00

mg/

kg%

UCL

95%

KM

(t) U

CLPE

STIC

IDES

72-5

4-8

4-4-

DD

Dm

g/kg

1.7E

-02

3.2E

-02

4.2E

-02

3.2E

-02

mg/

kgM

ax97

.5%

KM

(Che

bysh

ev) U

CL72

-55-

94-

4-D

DE

mg/

kg5.

1E-0

21.

0E-0

12.

0E-0

11.

0E-0

1m

g/kg

Max

95%

KM

(Che

bysh

ev) U

CL50

-29-

34-

4-D

DT

mg/

kg6.

1E-0

23.

1E-0

14.

9E-0

13.

1E-0

1m

g/kg

Max

99%

KM

(Che

bysh

ev) U

CL30

9-00

-2Al

drin

mg/

kg1.

0E-0

31.

0E-0

3N

A1.

0E-0

3m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

Cons

titue

nts

of C

hlor

dane

mg/

kg1.

4E-0

23.

8E-0

22.

0E-0

22.

0E-0

2m

g/kg

% U

CL95

% K

M (t

) UCL

60-5

7-1

Die

ldrin

mg/

kg3.

9E-0

33.

9E-0

3N

A3.

9E-0

3m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

3321

3-65

-9En

dosu

lfan

IIm

g/kg

3.0E

-03

4.3E

-03

2.9E

-03

2.9E

-03

mg/

kg%

UCL

95%

KM

(t) U

CL72

-20-

8En

drin

mg/

kg1.

1E-0

31.

5E-0

31.

3E-0

31.

3E-0

3m

g/kg

% U

CL95

% K

M (t

) UCL

7421

-93-

4En

drin

Ald

ehyd

em

g/kg

1.2E

-02

2.3E

-02

3.0E

-02

2.3E

-02

mg/

kgM

ax97

.5%

KM

(Che

bysh

ev) U

CL76

-44-

8H

epta

chlo

rm

g/kg

2.0E

-03

2.9E

-03

2.5E

-03

2.5E

-03

mg/

kg%

UCL

95%

KM

(t) U

CL10

24-5

7-3

Hep

tach

lor E

poxi

dem

g/kg

1.6E

-03

1.9E

-03

1.7E

-03

1.7E

-03

mg/

kg%

UCL

95%

KM

(t) U

CL58

-89-

9Li

ndan

em

g/kg

2.8E

-03

3.2E

-03

2.5E

-03

2.5E

-03

mg/

kg%

UCL

95%

KM

(t) U

CL72

-43-

5M

etho

xych

lor

mg/

kg5.

5E-0

35.

5E-0

3N

A5.

5E-0

3m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

SVO

CsLo

w M

olec

ular

Wei

ght P

AHs

mg/

kg3.

8E-0

16.

3E-0

14.

6E-0

14.

6E-0

1m

g/kg

% U

CL95

% K

M (t

) UCL

Hig

h M

olec

ular

Wei

ght P

AHs

mg/

kg4.

1E-0

11.

2E+0

08.

85E-

018.

9E-0

1m

g/kg

% U

CL95

% K

M (t

) UCL

Not

es:

a: M

ax -

max

imum

det

ecte

d co

ncen

trat

ion;

%U

CL -

% u

pper

con

fiden

ce li

mit.

b: P

roU

CL d

oes

not p

rovi

de 9

5% U

CLs

whe

n th

ere

are

insu

ffic

ient

dat

a, a

s de

fined

by

few

er th

an 3

sam

ples

or f

ewer

than

2 u

niqu

e de

tect

ed s

ampl

es. I

n th

ese

case

s, th

e EP

C is

obt

aine

d by

usi

ng th

e m

axim

um d

etec

ted

conc

entr

atio

n.N

A =

Not

Ava

ilabl

e;

UCL

cou

ld n

ot b

e ca

lcul

ated

bec

ause

of l

ow s

ampl

e nu

mbe

r or l

ow d

etec

tion

freq

uenc

y.U

CL b

ased

on

USE

PA P

roU

CL (V

. 5.0

; USE

PA 2

013)

reco

mm

enda

tion,

usi

ng R

egre

ssio

n on

Ord

er S

tatis

tics

(RO

S) fo

r eva

luat

ing

data

with

non

-det

ect (

ND

) sam

ples

. It i

s po

ssib

le th

at in

cer

tain

inst

ance

s, th

e ca

lcul

ated

95%

UCL

is s

mal

ler t

han

the

mea

n de

tect

ed c

once

ntra

tion.

Thi

s re

flect

s a

low

det

ectio

n fr

eque

ncy

and

non-

dete

ct s

ampl

es la

rgel

y ou

tnum

berin

g de

tect

ed s

ampl

es, c

ausi

ng th

e 95

% U

CL re

com

men

ded

by P

roU

CL V

5.0

to b

e sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n, s

ince

it re

flect

s th

e la

rge

num

ber o

f non

-det

ect s

ampl

es.

Gam

ma

UCL

= C

ompu

tatio

n of

UCL

of t

he m

ean

of a

Gam

ma,

G(k

,) d

istr

ibut

ion

(par

amet

ric).

KM (C

heby

shev

) UCL

= U

CL b

ased

upo

n Ka

plan

-Mei

er e

stim

ates

usi

ng th

e Ch

ebys

hev

ineq

ualit

y (n

on-p

aram

etric

). KM

(t) U

CL =

UCL

bas

ed u

pon

Kapl

an-M

eier

est

imat

es u

sing

stu

dent

’s t-

dist

ribut

ion

criti

cal v

alue

(non

-par

amet

ric).

Stud

ent's

-t U

CL =

Com

puta

tion

met

hod

base

d up

on s

tude

nt’s

t-

dist

ribut

ion

(par

amet

ric).


o

f 1

Tabl

e 7-

14Aq

uatic

Inve

rteb

rate

Tis

sue

Expo

sure

Poi

nt C

once

ntra

tions

Tria

ngle

-Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Expo

sure

Poi

nt C

once

ntra

tion

CAS

Num

ber

Cons

titue

nts

of

Conc

ern

Uni

tsAv

erag

e D

etec

ted

Conc

entr

atio

nM

axim

um D

etec

ted

Conc

entr

atio

nPo

tent

ial U

CL to

Use

Valu

eU

nits

Stat

istic

aRa

tiona

leb

MET

ALS

7440

-38-

2Ar

seni

cm

g/kg

1.58

E-01

1.99

E-01

2.03

E-01

1.99

E-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-3

9-3

Bariu

mm

g/kg

5.62

E+01

8.63

E+01

8.32

E+01

8.32

E+01

mg/

kg%

UCL

95%

Stu

dent

's-t

UCL

7440

-47-

3Ch

rom

ium

mg/

kg3.

36E-

015.

58E-

015.

28E-

015.

28E-

01m

g/kg

% U

CL95

% K

M (t

) UCL

7440

-50-

8Co

pper

mg/

kg1.

03E+

011.

20E+

011.

24E+

011.

20E+

01m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

7439

-89-

6Iro

nm

g/kg

6.39

E+01

9.67

E+01

9.83

E+01

9.67

E+01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

39-9

2-1

Lead

mg/

kg1.

19E+

001.

71E+

002.

00E+

001.

71E+

00m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

7439

-96-

5M

anga

nese

mg/

kg1.

32E+

021.

74E+

021.

90E+

021.

74E+

02m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

7439

-97-

6M

ercu

rym

g/kg

2.13

E-02

2.69

E-02

2.80

E-01

2.69

E-02

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-0

2-0

Nic

kel

mg/

kg1.

74E-

012.

25E-

012.

23E-

012.

23E-

01m

g/kg

% U

CL95

% K

M (t

) UCL

7782

-49-

2Se

leni

umm

g/kg

1.81

E-01

2.24

E-01

2.36

E-01

2.24

E-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-2

2-4

Silv

erm

g/kg

1.11

E-01

1.32

E-01

1.42

E-01

1.32

E-01

mg/

kgM

axM

axim

um D

etec

ted

Valu

e74

40-6

2-2

Vana

dium

mg/

kg9.

02E-

021.

43E-

011.

32E-

011.

32E-

01m

g/kg

% U

CL95

% S

tude

nt's

-t U

CL74

40-6

6-6

Zinc

mg/

kg2.

28E+

012.

88E+

012.

81E+

012.

81E+

01m

g/kg

% U

CL95

% S

tude

nt's

-t U

CLPE

STIC

IDES

72-5

4-8

4-4-

DD

Dm

g/kg

4.47

E-04

5.20

E-04

5.00

E-04

5.00

E-04

mg/

kg%

UCL

95%

KM

(t) U

CL72

-55-

94-

4-D

DE

mg/

kg1.

11E-

031.

60E-

031.

70E-

031.

60E-

03m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

60-5

7-1

Die

ldrin

mg/

kg3.

90E-

043.

90E-

04N

A3.

90E-

04m

g/kg

Max

Max

imum

Det

ecte

d Va

lue

Not

es:

a: M

ax -

max

imum

det

ecte

d co

ncen

trat

ion;

%U

CL -

% u

pper

con

fiden

ce li

mit.

b:Pr

oUCL

doe

s no

t pro

vide

95%

UCL

s w

hen

ther

e ar

e in

suff

icie

nt d

ata,

as

defin

ed b

y fe

wer

than

3 s

ampl

es o

r few

er th

an 2

uni

que

dete

cted

sam

ples

. In

thes

e ca

ses,

the

EPC

is o

btai

ned

by u

sing

the

max

imum

det

ecte

d co

ncen

trat

ion.

UCL

bas

ed

on U

SEPA

Pro

UCL

(V. 5

.0; U

SEPA

201

3) re

com

men

datio

n, u

sing

Reg

ress

ion

on O

rder

Sta

tistic

s (R

OS)

for e

valu

atin

g da

ta w

ith n

on-d

etec

t (N

D) s

ampl

es.

It is

pos

sibl

e th

at in

cer

tain

inst

ance

s, th

e ca

lcul

ated

95%

UCL

is s

mal

ler t

han

the

mea

n de

tect

ed c

once

ntra

tion.

Thi

s re

flect

s a

low

det

ectio

n fr

eque

ncy

and

non-

dete

ct s

ampl

es la

rgel

y ou

tnum

berin

g de

tect

ed s

ampl

es, c

ausi

ng th

e 95

%U

CL re

com

men

ded

by P

roU

CL V

5.0

to b

e sm

alle

r tha

n th

e m

ean

dete

cted

con

cent

ratio

n, s

ince

it re

flect

s th

e la

rge

num

ber o

f non

-det

ect s

ampl

es. T

he U

CL c

an a

lso

be h

ighe

r tha

n th

e m

axim

um d

etec

ted

conc

entr

atio

n, d

ue to

a lo

w s

ampl

e si

ze. I

n th

ese

inst

ance

s, th

e m

axim

um d

etec

ted

valu

e is

use

d as

the

EPC.

NA

= N

ot a

vaila

ble;

UCL

cou

ld n

ot b

e ca

lcul

ated

bec

ause

of l

ow s

ampl

e nu

mbe

r or l

ow d

etec

tion

freq

uenc

y.KM

(t) U

CL =

UCL

bas

ed u

pon

Kapl

an-M

eier

est

imat

es u

sing

stu

dent

’s t-

dist

ribut

ion

criti

cal v

alue

(non

-par

amet

ric).

Stud

ent's

-t U

CL =

Com

puta

tion

met

hod

base

d up

on

stud

ent’s

t-di

strib

utio

n (p

aram

etric

).


of

1

Table716

EcologicalExpo

sure

Pathwayso

fCon

cern

Triangle

Pacific

Site

Elizab

ethCity,N

orth

Carolin

a

Expo

sure

Area

Expo

sure

Med

ium

Sensitive

Environm

ent

Flag

(Y/N

)

Receptor

Enda

ngered

orTh

reaten

edSpeciesF

lag

Expo

sure

Routes

Assessmen

tEnd

points

Measuremen

tEnd

points

Terrestrial

Expo

sure

Area

SurfaceSoil

N

Terrestrialplants,

invertibrates,

invertivorou

s&pred

atorybirds,

invertivorou

s&om

nivorous

mam

mals

Y

Directcontact,

incide

ntal

ingestion,and

ingestionof

affected

food

items.

Reprod

uctiv

esuccess,grow

th,and

/or

survival)o

finvertiv

orou

sand

pred

atory

bird,and

invertivorou

sand

omnivorous

mam

malpo

pulatio

nslikelyto

forage

onprey

availablefrom

terrestrialportio

nsof

theSite;h

ealth

ofplanta

ndsoil

inverteb

rate

commun

ities.

1.Co

mparison

ofthemod

eled

dietarydo

ses,basedon

Site

surfacesoilandsurfacewater

COC

conce n

trations,toTR

Vsforthe

American

robin.

2.Co

mparison

ofsoilEPCs

ofCO

Csto

EcoSSLvalues

forb

irds,plants,m

ammals,andinverteb

rates.

3.Co

mparison

ofmod

eled

dietarydo

ses,basedon

Site


EPCs

ofCO

Cs,

toTR

Vsforthe

southe

rnshorttailedshrew.

4.Co

mparison

ofthedietarydo

ses,basedon

Site


EPCs

andmod

eled

plant,soilinverteb

rate,and

smallm

ammaltissueCO

Cconcen

trations,toTR

Vsforthe

raccoo

n.

Surface

Water

NFish,pisc

ivorou

sbird

andmam

mal

popu

latio

nsN

Directcontact,

incide

ntal

ingestion,and

aquatic

food

chain.

Toxiceffectstoaquatic

organism

sand

wildlifeviadirectcontactw

ithSite

surfacewaters;reprod

uctiv

esuccess,

grow

th,and

/orsurvivalofthe

Pailin

Creekfishcommun

ityandpiscivorou

sbird

andmam

malpo

pulatio

ns

1.Co

mparison

ofdietarydo

ses,basedon

surfacewater,and

mod

eled

smallm

ammaltissueEPCs,to

TRVs

forthe

redtailedhawk.

Aquatic

Expo

sure

Area

Sedimen

tN

Benthicorganism

sN

Directcontact,

incide

ntal

ingestion,and

aquatic

food

chain.

ToxiceffectstothePailinCreekaquatic

inverteb

rate

commun

ityviadirect

contactw

ithSite

sedimen

ts

1.Co

mparison

ofsedimen

tEPC

sofC

OCs

inPailinCreekto

stateandfede

ralsed

imen

tcriteriaand

guidance

values

(Region4Waste

Managem

entD

ivision

Screen

ingVa

lues

forH

azardo

usWaste

Sites

[chron

ic],[USEPA

2001

b,EC

OUpd

ate:EcoT

OXThresholds

[USEPA

1996

]).2.Co

mparison

ofEPCs

ofCO

CsinPailinCreekcrab

tissueto

crite

riaforthe

protectio

nof

aquatic

inverteb

rates.

3.Co

mparison

ofEPCs

ofCO

CsinPailinCreekcrab

tissueto

crite

riaforthe

protectio

nof

piscivorou

smam

mals.

Surface

Water

NFish,pisc

ivorou

sbird

andmam

mal

popu

latio

nsN

Directcontact,

incide

ntal

ingestion,and

aquatic

food

chain.


organism

sand


ithSite

surfacewaters;viability

ofthefish

commun

ity.

1.Co

mparison

ofsurfacewater

EPCs

ofPailinCreekCO

Csto

stateandfede

ralsurface

water

crite

riaandguidance

from

:»Re

gion

4Waste

Managem

entD

ivision

Screen

ingVa

lues

forH

azardo

usWaste

Sites(chronic)(USEPA

2001

b)»Re

gion

3BT

AGMarineScreen

ingBe

nchm

arks

(USEPA

2013

a)»NCD

EQSaltw

ater

Aquatic

Life

Standards(https://de

q.nc.gov/ncstdstable09

2220

17)p

ertheNorth

Carolina15

ANCA

C02

BWater

QualityStandardsfor

SurfaceWaters

»NationalRecom

men

dedWater

QualityCrite

ria(USEP A

2013

b)»USEPA

EcoT

OXScreen

ingCrite

riaAW

CQ/TierIIV

alue

s(USEPA

1996

).2.Co

mparison

ofdietarydo

sesb

ased

onEPCs

inPailinCreeksedimen

t,surfacewater,and

measured

prey

(i.e.,crab,fin

fish)

COCtissueconcen

trations

toTR

Vsforthe

greenhe

ronandgreatb

luehe

ron.

Shallow

Grou

ndwater

NPiscivorou

sbird

and

mam

malpo

pulatio

nsN

Directcontact,

incide

ntal

ingestion,and

ingestionof

affected

prey

species.


organism

sand


ithSite

grou

ndwater

that

seep

stosurfacewater

bodies

3.Co

mparison

ofEPCs

ofSite

shallowgrou

ndwater

COCs

tostateandfede

ralsurface

water

crite

riaandguidance

from

:»Re

gion

4Waste

Managem

entD

ivision

Screen

ingVa

lues

forH

azardo

usWaste

Sites(chronic)(USEPA

2001

b)»Re

gion

3BT

AGMarineScreen

ingBe

nchm

arks

(USEPA

2013

a)»NCD

EQSaltw

ater

Aquatic

Life

Standards(https://de

q.nc.gov/ncstdstable09

2220

17)p

ertheNorth

Carolina15

ANCA

C02

BWater

QualityStandardsfor

SurfaceWaters

»NationalRecom

men

dedWater

QualityCrite

ria(USEP A

2013

b)»USEPA

EcoT

OXScreen

ingCrite

riaAW

CQ/TierIIV

alue

s(USEPA

1996

).


FEAS

IBIL

ITY

STU

DY

OB

G |

TH

ERE’

S A

WA

Y

TAB

LE 1

1-1

DET

AIL

ED A

NA

LYSI

S O

F R

EMED

IAL

ALT

S –

SO

IL (

FS A

PR

-18

) |

PA

GE

1 O

F 2

Tabl

e 11

-1Su

mm

ary

of C

ompa

rativ

e An

alys

is o

f Soi

l Rem

edia

l Alte

rnat

ives

Tria

ngle

Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Alte

rnat

ive

1 - N

o Fu

rthe

r Act

ion

Alte

rnat

ive

2 - L

imite

d Ex

cava

tion/

Disp

osal

and

Unr

estr

icte

d U

se

- Di

scon

tinua

tion

of M

onito

ring,

Ope

ratio

ns, a

nd M

aint

enan

ce- E

xcav

atio

n an

d O

ff-Si

te D

ispos

al

- Bac

k-fil

ling

of e

xcav

ated

are

as w

ith c

ertif

ied

clea

n fil

lO

vera

ll Pr

otec

tion

of H

uman

Hea

lth a

nd th

e En

viro

nmen

t

Ove

rall

Prot

ectio

n of

Hum

an H

ealth

Und

er th

e cu

rren

t and

exp

ecte

d fu

ture

indu

stria

l-use

con

ditio

ns a

t the

Site

, soi

l con

stitu

ents

do

not p

ose

risks

to h

uman

hea

lth.

Und

er th

e cu

rren

t and

exp

ecte

d fu

ture

indu

stria

l-use

con

ditio

ns a

t the

Site

, soi

l con

stitu

ents

do

not p

ose

risks

to h

uman

hea

lth.

Ove

rall

prot

ectio

n of

the

envi

ronm

ent

Beca

use

the

area

s with

hig

hest

det

ectio

ns o

f CO

Cs a

re n

ot lo

cate

d be

neat

h or

nea

r im

perm

eabl

e su

rfac

es,

this

alte

rnat

ive

wou

ld n

ot p

rovi

de a

mea

ns to

miti

gate

pot

entia

l risk

s ass

ocia

ted

with

exp

osed

soil.

Loc

al

faun

a w

ould

still

hav

e ac

cess

to so

il co

ntam

inat

ed w

ith C

OCs

und

er A

ltern

ativ

e 1.

Ove

rall

prot

ectio

n of

the

envi

ronm

ent i

s pro

vide

d th

roug

h th

e re

mov

al o

f affe

cted

soil

from

the

Site

, th

us m

itiga

ting

aggr

egat

e ec

olog

ical

risk

via

dire

ct c

onta

ct w

ith o

r ing

estio

n of

soil

COCs

.

Atta

inm

ent o

f RAO

sAl

tern

ativ

e 1

does

not

add

ress

soil

RAO

s bec

ause

surf

ace

soil

cont

aini

ng C

OCs

rem

ains

acc

essib

le to

loca

l fa

una.

Al

tern

ativ

e 2

addr

esse

s soi

l RAO

s thr

ough

rem

oval

of i

mpa

cted

soil.

Com

plia

nce

with

ARA

Rs a

nd T

BCs

Com

plia

nce

with

che

mic

al-s

peci

fic A

RARs

and

TBC

sTh

is al

tern

ativ

e w

ould

not

com

ply

with

che

mic

al-s

peci

fic A

RARs

.Al

tern

ativ

e 2

wou

ld a

ttai

n ch

emic

al-s

peci

fic A

RARs

by

rem

ovin

g so

il ch

arac

teriz

ed a

s PCB

Rem

edia

tion

Was

te (>

50

mg/

kg to

tal P

CBs)

und

er T

SCA.

Com

plia

nce

with

loca

tion-

spec

ific

ARAR

s and

TBC

sN

o lo

catio

n-sp

ecifi

c AR

ARs a

re tr

igge

red

by th

is al

tern

ativ

e.

Exca

vatio

n an

d ba

ckfil

ling

activ

ities

wou

ld b

e co

nduc

ted

in a

man

ner c

onsis

tent

with

floo

dpla

in a

nd

prot

ecte

d sp

ecie

s reg

ulat

ions

. Exc

avat

ion

and

back

fillin

g ac

tiviti

es w

ould

be

perf

orm

ed so

as t

o pr

otec

t ne

arby

wat

er b

odie

s fro

m in

cide

ntal

pol

lutio

n.

Com

plia

nce

with

act

ion-

spec

ific

ARAR

s and

TBC

sN

o ac

tions

are

incl

uded

in th

is al

tern

ativ

e.

Exca

vatio

n an

d ba

ckfil

ling

activ

ities

wou

ld b

e co

nduc

ted

in a

man

ner c

onsis

tent

with

air

qual

ity st

anda

rds

and

in a

ccor

danc

e to

OSH

A sa

fety

requ

irem

ents

. Sol

id a

nd h

azar

dous

was

tes w

ould

be

man

aged

in

acco

rdan

ce w

ith a

pplic

able

stat

e an

d fe

dera

l han

dlin

g an

d di

spos

al re

gula

tions

, inc

ludi

ng T

SCA

requ

irem

ents

for P

CBs.

Tra

nspo

rtat

ion

activ

ities

wou

ld b

e co

mpl

eted

in a

ccor

danc

e w

ith a

pplic

able

stat

e an

d fe

dera

l req

uire

men

ts, b

y lic

ense

d an

d pe

rmitt

ed h

aule

rs.

Long

-Ter

m E

ffect

iven

ess a

nd P

erm

anen

ce

Mag

nitu

de o

f res

idua

l risk

No

addi

tiona

l act

ions

are

impl

emen

ted

unde

r Alte

rnat

ive

1, th

eref

ore,

impa

cts t

o ec

olog

ical

rece

ptor

s re

mai

n on

-site

follo

win

g im

plem

enta

tion

of th

is re

med

ial a

ltern

ativ

e. B

ecau

se o

f the

nat

ure

of c

ompo

unds

in

the

soil,

nat

ural

deg

rada

tion

is un

likel

y to

occ

ur, a

nd th

e as

soci

ated

risk

s are

exp

ecte

d to

per

sist.

Follo

win

g im

plem

enta

tion

of A

ltern

ativ

e 2,

no

unac

cept

able

eco

logi

cal r

isks w

ould

rem

ain.

Adeq

uacy

and

relia

bilit

y of

con

trol

sN

o co

ntro

ls ar

e in

clud

ed in

this

alte

rnat

ive

rela

ted

to d

irect

con

tact

with

soil.

Exca

vatio

n an

d of

f-site

disp

osal

of s

oil i

nclu

ded

in A

ltern

ativ

e 2

is a

relia

ble

mea

ns o

f man

agin

g po

tent

ial

expo

sure

s to

soil

affe

cted

by

COCs

, the

reby

miti

gatin

g ag

greg

ate

ecol

ogic

al ri

sk.

Alte

rnat

ive

2 w

ould

at

tain

che

mic

al-s

peci

fic A

RARs

by

rem

ovin

g so

il ch

arac

teriz

ed a

s PCB

Rem

edia

tion

Was

te (>

50

mg/

kg

tota

l PCB

s) u

nder

TSC

A.

Sust

aina

bilit

y an

d en

viro

nmen

tal i

mpa

cts

No

ener

gy c

onsu

mpt

ion,

gre

enho

use

gas o

r pol

luta

nt e

miss

ions

, wat

er o

r res

ourc

e us

e, im

pact

s to

wat

er,

ecol

ogy,

or c

omm

unity

are

ant

icip

ated

for t

his a

ltern

ativ

e.

No

long

-ter

m p

ollu

tant

em

issio

ns, i

mpa

cts t

o w

ater

, eco

logy

, or c

omm

unity

are

ant

icip

ated

for t

his

alte

rnat

ive.

Som

e gr

eenh

ouse

gas

em

issio

ns fr

om c

onst

ruct

ion

equi

pmen

t are

ant

icip

ated

dur

ing

exca

vatio

n ac

tiviti

es.

Redu

ctio

n of

Tox

icity

, Mob

ility

, or V

olum

e Th

roug

h Tr

eatm

ent

Tr

eatm

ent o

r rec

yclin

g pr

oces

ses e

mpl

oyed

and

m

ater

ials

trea

ted

Alte

rnat

ive

1 do

es n

ot in

clud

e ac

tive

trea

tmen

t pro

cess

es.

Alte

rnat

ive

2 do

es n

ot in

clud

e ac

tive

trea

tmen

t pro

cess

es. E

xcav

ated

soils

are

not

ant

icip

ated

to b

e su

itabl

e fo

r ben

efic

ial r

euse

else

whe

re o

n sit

e or

off

site.

Am

ount

of h

azar

dous

subs

tanc

es, p

ollu

tant

s, o

r CO

Cs

that

wou

ld b

e tr

eate

d or

recy

cled

Non

e - b

ecau

se o

f the

nat

ure

of th

e co

mpo

unds

, CO

Cs a

re u

nlik

ely

to n

atur

ally

deg

rade

. Ap

prox

imat

ely

34 to

ns o

f non

-haz

ardo

us a

nd 1

1 to

ns o

f haz

ardo

us (P

CBs >

50 m

g/kg

) soi

l wou

ld b

e ex

cava

ted

and

disp

osed

off-

site

at a

n ap

prop

riate

ly p

erm

itted

land

fill.

Degr

ee o

f exp

ecte

d re

duct

ion

in to

xici

ty, m

obili

ty, o

r vo

lum

eTh

is al

tern

ativ

e w

ould

rely

sole

ly o

n na

tura

l att

enua

tion

to re

duce

toxi

city

, mob

ility

, and

vol

ume,

whi

ch,

due

to th

e na

ture

of t

he C

OC

com

poun

ds, i

s unl

ikel

y to

occ

ur.

Exca

vatio

n an

d di

spos

al o

f affe

cted

soils

wou

ld c

ompl

etel

y re

mov

e im

pact

ed so

il, th

ereb

y re

duci

ng

toxi

city

, mob

ility

, and

vol

ume.

Of t

he p

ropo

sed

alte

rnat

ives

, Alte

rnat

ive

2 w

ould

resu

lt in

the

redu

ctio

n in

toxi

city

, mob

ility

, and

vol

ume

thro

ugh

soil

rem

oval

. De

gree

to w

hich

trea

tmen

t is i

rrev

ersib

leN

ot A

pplic

able

Exca

vatio

n an

d of

f-site

disp

osal

is ir

reve

rsib

le.

Type

and

qua

ntity

of r

esid

uals

rem

aini

ng a

fter

tr

eatm

ent

Not

App

licab

leN

o tr

eatm

ent r

esid

uals

wou

ld b

e cr

eate

d as

a re

sult

of im

plem

enta

tion

of A

ltern

ativ

e 2.

Degr

ee to

whi

ch tr

eatm

ent w

ould

redu

ce th

e in

here

nt

haza

rds p

osed

by

the

faci

lity

Not

App

licab

leN

ot A

pplic

able


FEAS

IBIL

ITY

STU

DY

OB

G |

TH

ERE’

S A

WA

Y

TAB

LE 1

1-1

DET

AIL

ED A

NA

LYSI

S O

F R

EMED

IAL

ALT

S –

SO

IL (

FS A

PR

-18

) |

PA

GE

2 O

F 2

Tabl

e 11

-1Su

mm

ary

of C

ompa

rativ

e An

alys

is o

f Soi

l Rem

edia

l Alte

rnat

ives

Tria

ngle

Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Alte

rnat

ive

1 - N

o Fu

rthe

r Act

ion

Alte

rnat

ive

2 - L

imite

d Ex

cava

tion/

Disp

osal

and

Unr

estr

icte

d U

se

- Di

scon

tinua

tion

of M

onito

ring,

Ope

ratio

ns, a

nd M

aint

enan

ce- E

xcav

atio

n an

d O

ff-Si

te D

ispos

al

- B

ack-

fillin

g of

exc

avat

ed a

reas

with

cer

tifie

d cl

ean

fill

Abili

ty o

f alte

rnat

ive

to re

duce

the

toxi

city

, mob

ility

, an

d vo

lum

e of

CO

CsAl

tern

ativ

e 1

relie

s sol

ely

on n

atur

al a

tten

uatio

n to

redu

ce to

xici

ty, m

obili

ty, a

nd v

olum

e, w

hich

due

to th

e na

ture

of t

he C

OC

com

poun

ds, i

s unl

ikel

y to

occ

ur.

Alte

rnat

ive

2 ac

hiev

es a

fast

er re

duct

ion

in to

xici

ty, m

obili

ty, a

nd v

olum

e of

CO

Cs th

an A

ltern

ativ

e 1

thro

ugh

the

rem

oval

of i

mpa

cted

soils

from

the

Site

. Sh

ort-

Term

Effe

ctiv

enes

s and

Impa

cts

Pote

ntia

l hum

an e

xpos

ures

dur

ing

impl

emen

tatio

n of

th

e al

tern

ativ

eAl

tern

ativ

e 1

does

not

incl

ude

activ

e tr

eatm

ent p

roce

sses

. Ph

ysic

al h

azar

ds re

latin

g to

the

mov

emen

t of h

eavy

equ

ipm

ent a

nd v

ehic

les a

ssoc

iate

d w

ith re

med

ial

cons

truc

tion

activ

ities

wou

ld b

e an

ticip

ated

. Che

mic

al h

azar

ds re

late

d to

Site

CO

Cs in

dus

t and

surf

ace

runo

ff w

ould

be

antic

ipat

ed a

nd c

ontr

olle

d ap

prop

riate

ly d

urin

g ex

cava

tion.

Sust

aina

bilit

y an

d en

viro

nmen

tal i

mpa

cts

Ther

e ar

e no

add

ition

al sh

ort-

term

env

ironm

enta

l and

sust

aina

bilit

y im

pact

s exp

ecte

d fo

r im

plem

entin

g th

is al

tern

ativ

e. N

o en

ergy

con

sum

ptio

n, g

reen

hous

e ga

s or p

ollu

tant

em

issio

ns, n

o w

ater

or r

esou

rce

use,

no

impa

cts t

o w

ater

, eco

logy

, wor

kers

, or c

omm

unity

are

ant

icip

ated

.

Alte

rnat

ive

2 w

ould

hav

e hi

gher

fuel

use

/gre

enho

use

gas e

miss

ions

than

Alte

rnat

ive

1 be

caus

e of

the

oper

atio

n of

con

stru

ctio

n eq

uipm

ent a

nd o

ff-Si

te tr

ansp

orta

tion

of w

aste

. A

ltern

ativ

e 2

wou

ld h

ave

a gr

eate

r sho

rt-t

erm

env

ironm

enta

l and

com

mun

ity im

pact

than

Alte

rnat

ive

1, b

ecau

se o

f inc

reas

ed

cons

truc

tion

traf

fic d

urin

g ex

cava

tion

activ

ities

. Pro

per c

onst

ruct

ion

cont

rols

wou

ld b

e im

plem

ente

d to

m

inim

ize e

nviro

nmen

tal a

nd c

omm

unity

impa

ct.

Pote

ntia

l nui

sanc

e co

nditi

ons

Ther

e ar

e no

nui

sanc

e co

nditi

ons a

ssoc

iate

d w

ith im

plem

entin

g th

is al

tern

ativ

e.

Antic

ipat

ed n

uisa

nce

cond

ition

s ass

ocia

ted

with

Alte

rnat

ive

2 in

clud

e du

st a

nd n

oise

gen

erat

ion,

runo

ff,

and

addi

tiona

l tra

ffic

due

to c

onst

ruct

ion

equi

pmen

t. Pr

oper

con

stru

ctio

n co

ntro

ls w

ould

be

impl

emen

ted

to p

rovi

de c

omm

unity

pro

tect

ion.

Prot

ectio

n of

wor

kers

dur

ing

rem

edia

l act

ions

No

activ

e co

mpo

nent

s are

ass

ocia

ted

with

impl

emen

ting

this

alte

rnat

ive.

Appl

icab

le h

azar

ds w

ould

be

iden

tifie

d an

d pr

oper

hea

lth a

nd sa

fety

mea

sure

s wou

ld b

e es

tabl

ished

in a

pr

ojec

t-sp

ecifi

c He

alth

and

Saf

ety

Plan

(HAS

P) to

be

prot

ectiv

e of

wor

kers

and

the

com

mun

ity.

Cons

truc

tion

proc

edur

es in

clud

ing

dust

supp

ress

ion,

ero

sion

cont

rol,

and

cons

truc

tion

hour

s cou

ld b

e im

plem

ente

d to

add

ress

nui

sanc

e co

nditi

ons.

Tim

e un

til R

AOs a

re a

chie

ved

With

this

alte

rnat

ive,

RAO

s wou

ld n

ot b

e m

et fo

r an

exte

nsiv

e pe

riod

of ti

me.

So

il RA

Os w

ould

be

met

imm

edia

tely

upo

n co

mpl

etio

n of

Alte

rnat

ive

2. A

ltern

ativ

e 2

is an

ticip

ated

to b

e co

mpl

eted

with

in o

ne c

onst

ruct

ion

seas

on.

Impl

emen

tabi

lity

Te

chni

cal F

easib

ility

- ab

ility

to c

onst

ruct

and

ope

rate

th

e re

med

ial t

echn

olog

yTh

ere

are

no te

chno

logi

es to

be

cons

truc

ted

in th

is al

tern

ativ

e.

Rem

edia

l ele

men

ts a

re re

adily

con

stru

ctib

le a

nd o

pera

ble,

and

hav

e be

en p

revi

ously

impl

emen

ted

succ

essf

ully

at t

he S

ite.

Abili

ty to

mon

itor e

ffect

iven

ess o

f rem

edy

Not

App

licab

leTh

e re

med

y in

Alte

rnat

ive

2 co

uld

be e

asily

mon

itore

d th

roug

h pe

riodi

c Si

te in

spec

tions

dire

cted

by

the

Site

Man

agem

ent P

lan.

Re

liabi

lity

of te

chno

logy

Not

App

licab

leEx

cava

tion

of so

ils a

nd si

te re

stor

atio

n is

a re

liabl

e m

eans

of a

ddre

ssin

g co

ntam

inat

ed so

ils.

Ease

of u

nder

taki

ng a

dditi

onal

rem

edia

l act

ions

, if

nece

ssar

yAd

ditio

nal r

emed

ial a

ctio

ns, i

f nec

essa

ry, w

ould

be

read

ily im

plem

enta

ble.

Ad

ditio

nal r

emed

ial a

ctio

ns, i

f nec

essa

ry, w

ould

be

read

ily im

plem

enta

ble.

Avai

labi

lity

of o

ff-sit

e tr

eatm

ent s

tora

ge a

nd d

ispos

al

serv

ices

and

cap

aciti

esN

one

requ

ired.

O

ff-Si

te T

reat

men

t, St

orag

e, a

nd D

ispos

al F

acili

ties (

TSDF

) are

read

ily a

vaila

ble

to m

anag

e so

il th

at w

ould

be

ship

ped

from

Site

dur

ing

impl

emen

tatio

n of

this

Alte

rnat

ive.

Av

aila

bilit

y of

nec

essa

ry e

quip

men

t, sp

ecia

lists

, and

m

ater

ials

Non

e re

quire

d.

Equi

pmen

t, sp

ecia

lists

, and

mat

eria

ls fo

r thi

s rem

edy

are

wid

ely

avai

labl

e.

Pote

ntia

l diff

icul

ties i

n ob

tain

ing

oper

atio

n ap

prov

als

No

coor

dina

tion

is ne

cess

ary

with

this

alte

rnat

ive.

Po

tent

ial f

or a

dditi

onal

on-

site

traf

fic d

ue to

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n eq

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COM

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Cost

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OBG

|TH

ERE’

SA

WAY

Table

Deta

iled

Analys

isofRemedialAlts–

GW

(FSApr

)(D

S_mcd

)R.d

ocx

|PAGE

of

Table11

2Summaryof

Compa

rativ

eAn

alysisof

Grou

ndwater

Remed

ialA

lternatives

TrianglePa

cific

Site

Elizab

ethCity,N

orth

Carolin

aAlternative1

NoFurthe

rAction

Alternative2

Institu

tiona

lCon

trols

Alternative3

Enha

nced

Biorem

ediatio

nwith

MNAan

dInstitu

tiona

lCon

trols

Discon

tinuatio

nof

Mon

itorin

g,Ope

ratio

ns,and

Mainten

ance

Deed

Restrictio

nsto

ControlFutureUse

ofProp

ertyandGrou

ndwater.

Deed

Restrictio

nsto

Preven

tFutureRe

siden

tialU

seof

Prop

erty

Site

Managem

entP

lanto

ControlD

evelop

men

tNearM

W03

Site

Managem

entP

lanto

Preven

tFutureDe

velopm

entN

earM

W03

Enhanced

Mon

itoredBiorem

ediatio

nwith

long

term

mon

itorin

g

OverallProtectio

nof

Human

Health

andtheEn

vironm

ent

OverallProtectio

nof

Human

Health

Und

erthecurren

tand

expe

cted

future

indu

stria

luse

cond

ition

sat

theSite,the

reareno

risks

associated

with

ingestionof

ordirectcontactw

ithSite

grou

ndwater;h

owever,the

rewou

ldbe

apo

tentialrisk

forh

uman

expo

sure

from

vapo

rintrusio

nwerea

buildingto

beconstructedne

armon

itorin

gwellM

W03

.The

noactio

nalternativewou

ldno

tprovide

protectio

nagainsta

potentialvapor

intrusionriskifconstructio

nor

developm

ent

wereto

occuro

nSite

near

wellM

W03

.The

grou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthat

grou

ndwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.

Und

erthecurren

tand

expe

cted

future

indu

stria

luse

cond

ition

satthe

Site,

thereareno

risks

associated

with

ingestionof

ordirectcontactw

ithSite

grou

ndwater;how

ever,the

rewou

ldbe

apo

tentialrisk

forh

uman

expo

sure

from

vapo

rintrusio

nwereabu

ildingto

beconstructedne

armon

itorin

gwell

MW

03.Institutionalcon

trolsm

itigatin

gfuture

developm

entn

earM

W03

wou

ldpreven

trisk

sassociatedwith

vapo

rintrusio

n.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.D

eed

restrictio

nswou

ldcontrolfutureuseof

theprop

ertyandthegrou

ndwater

topreven

tpoten

tialhum

anexpo

sures.

Und

erthecurren

tand

expe

cted

future

indu

stria

luse

cond

ition

satthe

Site,

thereareno

risks

associated

with

ingestionof

ordirectcontactw

ithSite

grou

ndwater;how

ever,the

rewou

ldbe

apo

tentialrisk

forh

uman

expo

sure

from

vapo

rintrusio

nwereabu

ildingto

beconstructedne

armon

itorin

gwellM

W03

.Overallprotectio

nfrom

potentialvapor

intrusionrisks

resulting

from

building

constructio

nne

arwellM

W03

wou

ldbe

provided

throughinstitu

tionalcon

trols

until

enhanced

biorem

ediatio

ncanredu

ceconcen

trations

sufficien

tlyto

mitigate

thevapo

rintrusio

nrisk.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.D

eedrestrictio

nswou

ldcontrolfutureuse

oftheprop

erty

andthegrou

ndwater

topreven

tpoten

tialhum

anexpo

sures.

Grou

ndwater

mon

itorin

gwou

ldbe

performed

tode

mon

strate

theefficacyof

treatm

enta

ndprovidefurthe

revaluationof

naturalatten

uatio

nandmigratio

n.

Overallprotectio

nof

theen

vironm

ent

Thereareno

ecologicalrisks

associated

with

thegrou

ndwater

attheSite.The

grou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.

Thereareno

ecologicalrisks

associated

with

thegrou

ndwater

attheSite.The

grou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthat

grou

ndwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.

Thereareno

ecologicalrisks

associated

with

thegrou

ndwater

attheSite.The

grou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthat

grou

ndwater

impacted

with

TCEwou

ldno

timpactoffsite

grou

ndwater

orsurfacewater

POEs.

Attainmen

tofR

AOs

Whilenaturalatten

uatio

ncouldredu

ceTC

Econcen

trationover

time,Alternative1wou

ldno

tadd

ressgrou

ndwater

RAOs,as

itwou

ldno

tprovide

protectio

nagainstfutureconstructio

nor

developm

entn

earw

ellM

W03

,and

associated

human

expo

sure

risks

throughpo

tentialvapor

intrusion.

Grou

ndwater

RAOsa

ssociatedwith

vapo

rintrusio

nwou

ldbe

met

immed

iatelyup

onim

plem

entatio

nof

institu

tionalcon

trols.Natural

attenu

ationcouldredu

ceTC

Econcen

trationover

time.

Alternative3couldpo

tentially

addressthe

grou

ndwater

RAOsb

yredu

cing

TCE

concen

trations

ingrou

ndwater

near

MW

03throughen

hanced

biorem

ediatio

n.

Compliancewith

ARAR

sand

TBCs

Compliancewith

chem

icalspecificAR

ARsa

ndTB

CsThisalternativewou

ldno

tcom

plywith

chem

ical

specificAR

ARs

forv

apor

intrusion.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

treach

offsite

grou

ndwater

orsurfacewater

POEs

atconcen

trations

that

exceed

chem

ical

specificAR

ARs.

Naturalattenu

ationcouldredu

ceTC

Econcen

trationover

time.

Alternative2wou

ldaddressc

hemical

specificvapo

rintrusio

nAR

ARsu

sing

institu

tionalcon

trolstocontrolcon

structionne

arwellM

W03

.The

grou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthat

grou

ndwater

impacted

with

TCEwou

ldno

treach

offsite

grou

ndwater

orsurfacewater

POEs

atconcen

trations

that

exceed

chem

ical

specificAR

ARs.

Naturalattenu

ationcouldredu

ceTC

Econcen

trationover

time.

Alternative3couldpo

tentiall y

redu

ceTC

Eingrou

ndwater

toconcen

trations

belowchem

ical

specificvapo

rintrusio

nAR

ARs.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

treach

offsite

grou

ndwater

orsurfacewater

POEs

atconcen

trations

that

exceed

chem

icalspecificAR

ARs.

Compliancewith

ARAR

sand

TBCs

(Con

tinue

d)Co

mpliancewith

locatio

nspecificAR

ARsa

ndTB

CsNolocatio

nspecificAR

ARsa

retriggeredby

thisalternative.

Nolocatio

nspecificAR

ARsw

ouldbe

triggeredun

derthisa

lternative.

Prop

osed

activ

ities

wou

ldbe

cond

uctedinamanne

rcon

sistent

with

coastal,

protectedspecies,andflo

odplainAR

ARrequ

iremen

ts,and

wou

ldbe

performed

soas

topreven

twater

pollutio

nof

thene

arby

rivers a

ndstream

s.Co

mpliancewith

actio

nspecificAR

ARsa

ndTB

CsNoactio

nsareinclud

edinthisalternative.

Noactio

nspecificAR

ARsa

retriggeredby

thisalternative.

Constructio

nactiv

ities

wou

ldbe

cond

uctedinamanne

rcon

sistent

with

OSH

Asafety

regulatio

ns.Solidwastes,ifgene

rated,wou

ldbe

managed

inaccordance

with

applicablestateandfede

ralhandlinganddisposalregulatio

ns.


OBG

|TH

ERE’

SA

WAY

Table

Deta

iled

Analys

isofRemedialAlts–

GW

(FSApr

)(D

S_mcd

)R.d

ocx

|PAGE

of

Transportatio

nactiv

ities

wou

ldbe

completed

inaccordance

with

applicablestate

andfede

ralreq

uiremen

ts,bylicen

sedandpe

rmitted

haulers.Injectionof

biorem

ediatio

nchem

icalwou

ldfollowfede

ralreq

uiremen

tsforinjectio

ncontrol.

Long

Term

Effectiven

essa

ndPe

rman

ence

Magnitude

ofresid

ualrisk

Noadditio

nalactions

wou

ldbe

implem

entedun

derA

lternative

1,therefore,po

tentialvapor

intrusionrisks

asaresultof

constructio

nne

arwellM

W03

wou

ldremainun

lessnatural

attenu

ationredu

cesthe

concen

trationof

TCEingrou

ndwater

toacceptablelevels.

Risk

associated

with

vapo

rintrusio

nas

aresultof

constructio

nne

arwellM

W03

wou

ldbe

mitigatedthroughinstitu

tionalcon

trols.Po

tentialvapor

intrusionrisks

asaresultof

constructio

nne

arwellM

W03

wou

ldremain

unlessnaturalatten

uatio

nredu

cesthe

concen

trationof

TCEingrou

ndwater

toacceptablelevels.

Risk

associated

with

vapo

rintrusio

nas

aresultof

constructio

nne

arwellM

W03

wou

ldbe

mitigatedthroughinstitu

tionalcon

trolsu

ntilen

hanced

biorem

ediatio

nredu

cesc

oncentratio

nssufficien

tlyto

elim

inatethevapo

rintrusio

nrisk.A

treatabilitystud

ywou

ldbe

requ

iredto

assessthelong

term

effectiven

esso

fthis

alternative.

Adeq

uacy

andreliabilityof

controls

Nocontrolsareinclud

edinthisalternativeforp

rotectionagainst

vapo

rintrusio

nas

aresultof

constructio

nne

arwellM

W03

.Institu

tionaland

engine

eringcontrolsassociated

with

Alternative2arean

adeq

uate

andreliablemeans

ofmanagingpo

tentialhum

anexpo

sures

associated

with

vapo

rintrusio

nne

arwellM

W03

,unlessn

aturalattenu

ation

redu

cesthe

concen

trationof

TCEto

acceptablelevels.

Institu

tionaland

engine

eringcontrolsassociated

with

Alternative3wou

ldbe

anadeq

uate

andreliablemeans

ofmanagingpo

tentialhum

anexpo

suresa

ssociated

with

potentialvapor

intrusionne

arwellM

W03

,unlessb

ioremed

iatio

nredu

ces

theconcen

trationof

TCEto

acceptablelevels.

Atreatabilitystud

ywou

ldbe

requ

iredto

assessthelong

term

effectiven

esso

fthisa

lternative.

Sustainabilityanden

vironm

entalimpacts

Noen

ergy

consum

ption,greenh

ouse

gaso

rpollutant

emissions,

water

orresource

use,im

pactstowater,ecology,orcom

mun

ityareanticipated

forthisa

lternative.

Noen

ergy

consum

ption,greenh

ouse

gaso

rpollutant

emissions,w

ater

orresource

use,im

pactstowater,ecology,orcom

mun

ityareanticipated

for

thisalternative.

Nolong

term

pollutant

emissions,impactstowater,ecology,orcom

mun

itywou

ldbe

anticipated

forthisa

lternative.Safety

equipm

enta

ndpe

rson

alprotectiv

eeq

uipm

entw

ouldprotectw

orkersfrom

expo

sures.En

ergy

consum

ptionandfueluse/greenh

ouse

gase

missions

wou

ldbe

anticipated

asa

resultof

injectionandgrou

ndwater

mon

itorin

g,andwou

ldbe

greaterthan

Alternatives

1,2,and3.

Treatm

ento

rrecyclingprocessese

mployed

andmaterialstreated

Notreatm

entp

rocesses

areused

inthisalternative.

Notreatm

entp

rocesses

areused

inthisalternative.

Applicationof

acceleratedbiorem

ediatio

n(red

uctiv

ede

chlorin

ation)

wou

ldbe

appliedto

providetreatm

enta

nden

hancenaturalatten

uatio

nforS

itegrou

ndwater.

Amou

ntof

hazardou

ssub

stances,po

llutants,

orCO

Csthat

wou

ldbe

treatedor

recycled

Notreatm

entp

rocesses

areused

inthisalternative.

Notreatm

entp

rocesses

areused

inthisalternative.

TheTC

Eingrou

ndwater

couldbe

treatedifthisalternativeiseffective,bu

tdata

areinsufficien

tatthistim

e,andassessmen

tofthe

volumeof

contam

inant

treatedwou

ldbe

evaluateddu

ringatreatabilitystud

y.

Degree

ofexpe

cted

redu

ctionintoxicity,

mob

ility,orv

olum

eNotreatm

entp

rocesses

areused

inthisalternative.Natural

attenu

ationcouldresultinthenaturaldegradatio

nof

TCEover

time.

Notreatm

entp

rocesses

areused

inthisalternative.Naturalattenu

ation

couldresultinthenaturaldegradatio

nof

TCEover

time.

Enhanced

naturalatten

uatio

ncouldpo

tentially

resultintheredu

ctionintoxicity,

mob

ility,and

volumeof

impacted

grou

ndwater.

Degree

towhich

treatm

entisirreversib

leNotreatm

entp

rocesses

areused


attenu

ationprocessw

ouldbe

irreversib

le.

Notreatm

entp

rocesses

areused


ation

processw

ouldbe

irreversib

le.

Insitutreatm

ento

fgroun

dwater

isirreversib

le.

Type

andqu

antityof

resid

ualsremaining

after

treatm

ent

Notreatm

entp

rocesses

areused


attenu

ationcouldresultinthenaturaldegradatio

nof

TCEover

time.

Notreatm

entp

rocesses

areused

inthisalternative.

Naturalattenu

ation

couldresultinthenaturaldegradatio

nof

TCEover

time.

Pend

ingresults

ofatreatabilitystud

y,en

hanced

insitubiorem

ediatio

nis

anticipated

toredu

ceTC

Eto

acceptablelevelsinthevicinity

ofMW

03.

Degree

towhich

treatm

entw

ouldredu

cethe

inhe

rent

hazardsp

osed

bythefacility

Notreatm

entp

rocesses

areused


attenu

ationcouldresultinthenaturalbreakdo

wnof

TCEover

time.

Notreatm

entp

rocesses

areused


ation

couldresultinthenaturalbreakdo

wnof

TCEover

time.

Pend

ingresults

ofatreatabilitystud

y,en

hanced

insitubiorem

ediatio

nis

anticipated

toredu

ceTC

Eto

acceptablelevelsinthevicinity

ofMW

03.

Ability

ofalternativeto

redu

cethetoxicity,

mob

ility,and

volumeof

COCs

Alternative1relieso

nnaturalatten

uatio

nforred

uctio

nin

toxicity,m

obility,and

volumeof

selected

COCs

ingrou

ndwater.

Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

surfacewater

andgrou

ndwater

POEs.

Alternative2relieso

nnaturalatten

uatio

nforred

uctio

nintoxicity,m

obility,

andvolumeof

selected

COCs

ingrou

ndwater.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

surfacewater

andgrou

ndwater

POEs.

Alternative3achieves

aredu

ctionintoxicity,m

obility,and

volumeof

COCs

throughen

hanced

biorem

ediatio

n.Thegrou

ndwater

migratio

nevaluatio

n(Sectio

n2.6.2)

performed

indicatesthatg

roun

dwater

impacted

with

TCEwou

ldno

timpactoffsite

surfacewater

andgrou

ndwater

POEs.

ShortTerm

Effectiven

essa

ndIm

pacts

Potentialhum

anexpo

suresd

uring

implem

entatio

nof

thealternative

Alternative1wou

ldno

tprevent

potentialhum

anexpo

sures

over

theshortterm.

Notreatm

entp

rocesses

areused

inAlternative2.Instead,institu

tionalland

usecontrolswou

ldmitigate

anypo

tentialhum

anexpo

surestogrou

ndwater

orvapo

rintrusio

nintheshortterm.

Institu

tionallandusecontrolswou

ldmitigate

anypo

tentialhum

anexpo

suresto

grou

ndwater

orvapo

rintrusio

nintheshortterm.Che

micalhazardsrelated

toaccide

ntalexpo

sure

grou

ndwater

COCs

orbiorem

ediatio

nen

hancem

entp

rodu

ctdu

ringgrou

ndwater

treatm

enta

nd/orm

onito

ringwou

ldbe

managed

using

prop

erproced

ures

andpe

rson

alprotectiv

eeq

uipm

ent.


OBG

|TH

ERE’

SA

WAY

Table

Deta

iled

Analys

isofRemedialAlts–

GW

(FSApr

)(D

S_mcd

)R.d

ocx

|PAGE

of

Sustainabilityanden

vironm

entalimpacts

Thereareno

additio

nalsho

rtterm

environm

entaland

sustainabilityim

pactse

xpectedof

implem

entin

gthisalternative.

Noen

ergy

consum

ption,greenh

ouse

gaso

rpollutant

emissions,

nowater

orresource

use,no

impactstowater,ecology,

workers,orcom

mun

ity.

Thereareno

additio

nalsho

rtterm

environm

entaland

sustainabilityim

pacts

expe

cted

ofim

plem

entin

gthisalternative.

Noen

ergy

consum

ption,

greenh

ouse

gaso

rpollutant

emissions,nowater

orresource

use,no

impacts

towater,ecology,w

orkers,orcom

mun

ity.

Noshortterm

impactstowater,ecology,orcom

mun

ityareanticipated

.Safety

equipm

enta

ndpe

rson

alprotectiv

eeq

uipm

entw

ouldprotectw

orkersfrom

expo

sures.

Energy

consum

ptionandfueluse/greenh

ouse

gase

missions

wou

ldbe

anticipated

becauseof

injectionandgrou

ndwater

mon

itorin

g,andwou

ldbe

greaterthanAlternatives

1,2,and3.

Potentialnuisancecond

ition

sTherewou

ldbe

nonu

isancecond

ition

sassociatedwith

implem

entin

gthisalternative.

Therewou

ldbe

nonu

isancecond

ition

sassociatedwith

implem

entin

gthis

alternative.

Therewou

ldbe

nonu

isancecond

ition

sassociatedwith

implem

entin

gthis

alternative

Engine

eringcontrolsto

mitigate

shortterm

impacts

Noactivecompo

nentsw

ouldbe

associated

with

implem

entin

gthisalternative.

Noactivecompo

nentsw

ouldbe

associated

with

implem

entin

gthis

alternative.

Applicablehazardsw

ouldbe

iden

tifiedandprop

erhe

alth

andsafetymeasures

wou

ldbe

establish

edinaprojectspecificHA

SPto

beprotectiv

eof

workersand

thecommun

ity.

Timeun

tilRA

Osa

reachieved

With

thisalternative,RA

Osc

ouldbe

met

throughnatural

attenu

ationover

time.

With

thisalternative,RA

Osc

ouldbe

met

throughnaturalatten

uatio

nover

time.

With

thisalternative,grou

ndwater

RAOsw

ouldbe

met

immed

iatelyup

onim

plem

entatio

nof

institu

tionalcon

trols,andcouldbe

met

bybiorem

ediatio

nwith

inthetreatm

entzon

ewith

inapproxim

ately2years,andou

tsidethe

treatm

entzon

ecouldbe

achieved

bynaturalatten

uatio

nover

alonger

time.

TechnicalFeasib

ility

ability

toconstructa

ndop

eratetheremed

ialtechn

ology

Not

Applicable

Therewou

ldbe

notechno

logies

tobe

constructedwith

thisalternative.

Institu

tionalcon

trolsa

rereadily

implem

entable.

Remed

ialelemen

tsarereadily

constructib

leandop

erable.

Ability

tomon

itore

ffectiven

esso

frem

edy

Not

Applicable

Theremed

yinAlternative2wou

ldbe

immed

iatelyeffectiveup

onim

plem

entatio

nof

institu

tionalcon

trolsa

ndcouldbe

mon

itoredover

timeby

exam

iningthesite.

Theremed

yinAlternative3wou

ldbe

immed

iatelyeffectiveup

onim

plem

entatio

nof

institu

tionalcon

trolsa

ndcouldbe

mon

itoredover

timeby

exam

iningthesiteandpe

rforminggrou

ndwater

mon

itorin

g.

Reliabilityof

techno

logy

Not

Applicable

Not

Applicable

Insitubiorem

ediatio

nisareliabletechno

logy

ifcond

ition

satthe

siteare

amen

ableto

itsim

plem

entatio

n.Atreatabilitystud

ywou

ldbe

requ

iredto

assessifitwou

ldbe

effective.

Ease

ofun

dertakingadditio

nalrem

edial

actio

ns,ifn

ecessary

Not

Applicable

Ifthisalternativeproves

ineffective,additio

nalrem

edialactions

wou

ldbe

readily

implem

entable.

Ifthisalternativeproves

ineffective,additio

nalrem

edialactions

wou

ldbe

readily

implem

entable.

Availabilityof

offsite

treatm

entstorage

and

disposalservices

andcapacitie

sNot

Applicable

Not

Applicable

Not

Applicable

Availabilityof

necessaryeq

uipm

ent,

specialists,and

materials

Not

Applicable

Not

Applicable

Equipm

ent,specialists,and

materialsforthisrem

edyarewidelyavailable.

Potentialdifficultie

sinob

tainingop

eration

approvals

Not

Applicable

Nodifficulties

inob

tainingop

erationapprovalsw

ouldbe

anticipated

with

this

alternative.

Nodifficulties

inob

tainingop

erationapprovalsw

ouldbe

anticipated

with

this

alternative.

Totalpresent

worth

capitalcost

$0$7

0,00

0$9

04,424

Totalpresent

worth

O&M

cost

$0$0

$297

,674

Approxim

atetotalpresent

worth

projectcost

$0$7

0,00

0$1

,202

,099


• • • • • • • •


•


• • • • •


• • • •


• •


• • • •


• • •


•


• • • •

• • • •


• • •


• • • • • • •


• • • • • •


• • • •


−

• • •


•


Tabl

e 14

-3EP

A Re

gion

4 L

egal

Rec

omm

ende

d IR

OD

Loca

tion-

Spec

ific

ARAR

s and

TBC

s Tr

iang

le P

acifi

c Su

perf

und

Site

, Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

1 o

f 5

Loca

tion-

Spec

ific

ARAR

s and

TBC

s

Loca

tion

Requ

irem

ents

Prer

equi

site

Cita

tion(

s)

Aqua

tic R

esou

rces

and

Wet

land

s

Shal

l tak

e ac

tion

to m

inim

ize th

e de

stru

ctio

n, lo

ss o

r de

grad

atio

n of

wet

land

s and

to p

rese

rve

and

enha

nce

bene

ficia

l val

ues o

f wet

land

s.

Fede

ral a

ctio

ns th

at in

volv

e po

tent

ial i

mpa

cts

to, o

r tak

e pl

ace

with

in, w

etla

nds –

TBC

Exec

utiv

e O

rder

119

90

Sect

ion

1.(a

) Pro

tect

ion

of

Wet

land

s

Pres

ence

of W

etla

nds

Shal

l avo

id u

nder

taki

ng c

onst

ruct

ion

loca

ted

in w

etla

nds

unle

ss: (

1) th

ere

is no

pra

ctic

able

alte

rnat

ive

to su

ch

cons

truc

tion,

and

(2) t

hat t

he p

ropo

sed

actio

n in

clud

es a

ll pr

actic

able

mea

sure

s to

min

imize

har

m to

wet

land

s whi

ch

may

resu

lt fr

om su

ch u

se.

Exec

utiv

e O

rder

119

90,

Sect

ion

2.(a

) Pro

tect

ion

of

Wet

land

s

Pres

ence

of w

etla

nds o

r ot

her w

ater

s inf

luen

ced

by

wet

land

s

The

follo

win

g ac

tiviti

es fo

r whi

ch S

ectio

n 40

4 pe

rmits

are

not

re

quire

d pu

rsua

nt to

Sec

tion

404(

f)(1)

of t

he C

lean

Wat

er A

ct

and

whi

ch a

re n

ot re

capt

ured

into

the

perm

ittin

g pr

oces

s pu

rsua

nt to

Sec

tion

404(

f)(2)

are

dee

med

to b

e in

com

plia

nce

with

wet

land

stan

dard

s in

15A

NCA

C 2B

.023

1:•

cons

truc

tion

of te

mpo

rary

sedi

men

t con

trol

m

easu

res o

r bes

t man

agem

ent p

ract

ices

as r

equi

red

by th

e N

C Se

dim

ent a

nd E

rosio

n Co

ntro

l Pro

gram

on

a co

nstr

uctio

n sit

e, p

rovi

ded

that

the

tem

pora

ry

sedi

men

t con

trol

mea

sure

s or b

est m

anag

emen

t pr

actic

es a

re re

stor

ed to

nat

ural

gra

de a

nd st

abili

zed

with

in tw

o m

onth

s of c

ompl

etio

n of

the

proj

ect a

nd

nativ

e w

oody

veg

etat

ion

is re

esta

blish

ed d

urin

g th

e ne

xt a

ppro

pria

te p

lant

ing

seas

on a

nd m

aint

aine

d;

Activ

ities

with

in w

etla

nds,

as d

efin

ed b

y G.

S.

143-

212(

6), t

hat c

ompl

y w

ith th

e m

ost c

urre

nt

vers

ions

of t

he fe

dera

l reg

ulat

ions

to

impl

emen

t Sec

tion

404

(f) (U

S En

viro

nmen

tal

Prot

ectio

n Ag

ency

and

US

Arm

y Co

rps o

f En

gine

ers i

nclu

ding

40

CFR

232.

3) a

nd th

e Se

dim

enta

tion

Pollu

tion

Cont

rol A

ct, G

.S.

113A

, Art

icle

4 –

app

licab

le

15A

NCA

C 02

B.02

30(a

)(5)

Pres

ence

of w

etla

nds o

r ot

her w

ater

s inf

luen

ced

by

wet

land

s

The

follo

win

g st

anda

rds s

hall

be u

sed

to a

ssur

e th

e m

aint

enan

ce o

r enh

ance

men

t of t

he e

xist

ing

uses

of w

etla

nds

iden

tifie

d in

Par

agra

ph (a

) of t

his R

ule:

•Li

quid

s, fi

ll or

oth

er so

lids o

r diss

olve

d ga

ses m

ay n

ot

be p

rese

nt in

am

ount

s whi

ch m

ay c

ause

adv

erse

im

pact

s on

exist

ing

wet

land

use

s;•

Floa

ting

or su

bmer

ged

debr

is, o

il, d

elet

erio

us

subs

tanc

es, o

r oth

er m

ater

ial m

ay n

ot b

e pr

esen

t in

amou

nts w

hich

may

cau

se a

dver

se im

pact

s on

Activ

ities

with

in, w

etla

nds a

s def

ined

by

G.S.

14

3-21

2(6)

– a

pplic

able

15A

NCA

C 02

B.02

31(b

)(1)-(

3)


Tabl

e 14

-3EP

A Re

gion

4 L

egal

Rec

omm

ende

d IR

OD

Loca

tion-

Spec

ific

ARAR

s and

TBC

s Tr

iang

le P

acifi

c Su

perf

und

Site

, Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

2 o

f 5

Loca

tion-

Spec

ific

ARAR

s and

TBC

s

Loca

tion

Requ

irem

ents

Prer

equi

site

Cita

tion(

s)

exist

ing

wet

land

use

s;

•M

ater

ials

prod

ucin

g co

lor,

odor

, tas

te o

r un

sight

lines

s may

not

be

pres

ent i

n am

ount

s whi

ch

may

cau

se a

dver

se im

pact

s on

exist

ing

wet

land

use

s;

Pres

ence

of w

etla

nds o

r ot

her w

ater

s inf

luen

ced

by

wet

land

s con

’t

The

follo

win

g st

anda

rds s

hall

be u

sed

to a

ssur

e th

e m

aint

enan

ce o

r enh

ance

men

t of t

he e

xist

ing

uses

of w

etla

nds

iden

tifie

d in

Par

agra

ph (a

) of t

his R

ule:

•Co

ncen

trat

ions

or c

ombi

natio

ns o

f sub

stan

ces w

hich

ar

e to

xic

or h

arm

ful t

o hu

man

, ani

mal

or p

lant

life

m

ay n

ot b

e pr

esen

t in

amou

nts w

hich

indi

vidu

ally

or

cum

ulat

ivel

y m

ay c

ause

adv

erse

impa

cts o

n ex

istin

g w

etla

nd u

ses;

•Hy

drol

ogic

al c

ondi

tions

nec

essa

ry to

supp

ort t

he

biol

ogic

al a

nd p

hysic

al c

hara

cter

istic

s nat

ural

ly

pres

ent i

n w

etla

nds s

hall

be p

rote

cted

to p

reve

nt

adve

rse

impa

cts o

n:

(A) W

ater

cur

rent

s, e

rosio

n or

sedi

men

tatio

n pa

tter

ns;

(B) N

atur

al w

ater

tem

pera

ture

var

iatio

ns;

(C) T

he c

hem

ical

, nut

rient

and

diss

olve

d ox

ygen

regi

me

of

the

wet

land

; (D

) The

mov

emen

t of a

quat

ic fa

una;

(E

) The

pH

of th

e w

etla

nd; a

nd(F

) Wat

er le

vels

or e

leva

tions

.•

The

popu

latio

ns o

f wet

land

flor

a an

d fa

una

shal

l be

mai

ntai

ned

to p

rote

ct b

iolo

gica

l int

egrit

y as

def

ined

at

15A

NCA

C 2B

.020

2.

Activ

ities

with

in, w

etla

nds a

s def

ined

by

G.S.

14

3-21

2(6)

– a

pplic

able

15A

NCA

C 02

B.02

31(b

)(4)-(

6)

Dete

rmin

atio

n th

at w

etla

nds

uses

are

not

rem

oved

or

degr

aded

Dete

rmin

ing

that

exi

stin

g us

es a

re n

ot re

mov

ed o

r deg

rade

d by

a d

ischa

rge

to c

lass

ified

surf

ace

wat

ers f

or a

n ac

tivity

w

hich

: (1

) has

no

prac

tical

alte

rnat

ive

unde

r the

crit

eria

out

lined

in

Para

grap

h (f)

of t

his R

ule;

(2

) will

min

imize

adv

erse

impa

cts t

o th

e su

rfac

e w

ater

s

Disc

harg

e to

Cla

ss W

L w

etla

nds,

as d

efin

ed a

t 15

A N

CAC

2B .0

101(

c)(8

) – a

pplic

able

15A

NCA

C 02

H .0

506(

b)


Tabl

e 14

-3EP

A Re

gion

4 L

egal

Rec

omm

ende

d IR

OD

Loca

tion-

Spec

ific

ARAR

s and

TBC

s Tr

iang

le P

acifi

c Su

perf

und

Site

, Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

3 o

f 5

Loca

tion-

Spec

ific

ARAR

s and

TBC

s

Loca

tion

Requ

irem

ents

Prer

equi

site

Cita

tion(

s)

base

d on

con

sider

atio

n of

exi

stin

g to

pogr

aphy

, veg

etat

ion,

fis

h an

d w

ildlif

e re

sour

ces,

and

hyd

rolo

gica

l con

ditio

ns

unde

r the

crit

eria

out

lined

in P

arag

raph

(g) o

f thi

s Rul

e;

(3) d

oes n

ot re

sult

in th

e de

grad

atio

n of

gro

undw

ater

s or

surf

ace

wat

ers;

(4

) doe

s not

resu

lt in

cum

ulat

ive

impa

cts,

bas

ed u

pon

past

or

reas

onab

ly a

ntic

ipat

ed fu

ture

impa

cts,

that

cau

se o

r will

ca

use

a vi

olat

ion

of d

owns

trea

m w

ater

qua

lity

stan

dard

s;

(5) p

rovi

des f

or p

rote

ctio

n of

dow

nstr

eam

wat

er q

ualit

y st

anda

rds t

hrou

gh th

e us

e of

on-

site

stor

mw

ater

con

trol

m

easu

res;

and

(6

) pro

vide

s for

repl

acem

ent o

f exi

stin

g us

es th

roug

h m

itiga

tion

as d

escr

ibed

at S

ubpa

ragr

aphs

(h)(1

) of t

his R

ule.

NOTE

: Det

erm

inat

ion

will

be

mad

e by

EPA

in c

onsu

ltatio

n w

ith N

CDEQ

and

the

USA

CE, a

s app

ropr

iate

and

do

cum

ente

d in

CER

CLA

Rem

edia

l Des

ign

or R

emed

ial

Actio

n W

ork

Plan

.

Coas

tal Z

one

Coas

tal M

anag

emen

t: St

ate

Guid

elin

es fo

r Are

as o

f En

viro

nmen

tal C

once

rn: C

oast

al W

etla

nds,

The

Est

uarin

e an

d O

cean

Sys

tem

s, N

atur

al a

nd C

ultu

ral R

esou

rce

Area

s,

Deve

lopm

ent S

tand

ards

App

licab

le to

All

AECs

TBC

15A

NCA

C 7H

, M

NC

Coas

tal M

anag

emen

t Act

Floo

dpla

ins

Pres

ence

of F

lood

plai

ns

desig

nate

d as

such

on

a m

ap1

Shal

l tak

e ac

tion

to re

duce

the

risk

of fl

ood

loss

, to

min

imize

th

e im

pact

of f

lood

s on

hum

an sa

fety

, hea

lth a

nd w

elfa

re, a

nd

to re

stor

e an

d pr

eser

ve th

e na

tura

l and

ben

efic

ial v

alue

s se

rved

by

flood

plai

ns.

Fede

ral a

ctio

ns th

at in

volv

e po

tent

ial i

mpa

cts

to, o

r tak

e pl

ace

with

in, f

lood

plai

ns –

TBC

Exec

utiv

e O

rder

119

88

Sect

ion

1. F

lood

plai

n M

anag

emen

t

Shal

l con

sider

alte

rnat

ives

to a

void

, to

the

exte

nt p

ossib

le,

adve

rse

effe

cts a

nd in

com

patib

le d

evel

opm

ent i

n th

e flo

odpl

ain.

Des

ign

or m

odify

its a

ctio

n in

ord

er to

min

imize

Exec

utiv

e O

rder

119

88

Sect

ion

2.(a

)(2) F

lood

plai

n M

anag

emen

t

1 U

nder

44

CFR

§ 9.

7 De

term

inat

ion

of p

ropo

sed

actio

n’s l

ocat

ion,

Par

agra

ph (c

) Flo

odpl

ain

dete

rmin

atio

n. O

ne sh

ould

con

sult

the

FEM

A Fl

ood

Insu

ranc

e Ra

te M

ap (F

IRM

), th

e Fl

ood

Boun

dary

Fl

oodw

ay M

ap (F

BFM

) and

the

Floo

d In

sura

nce

Stud

y (F

IS) t

o de

term

ine

if th

e Ag

ency

pro

pose

d ac

tion

is w

ithin

the

base

floo

dpla

in.


Tabl

e 14

-3EP

A Re

gion

4 L

egal

Rec

omm

ende

d IR

OD

Loca

tion-

Spec

ific

ARAR

s and

TBC

s Tr

iang

le P

acifi

c Su

perf

und

Site

, Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

4 o

f 5

Loca

tion-

Spec

ific

ARAR

s and

TBC

s

Loca

tion

Requ

irem

ents

Prer

equi

site

Cita

tion(

s)

pote

ntia

l har

m to

or w

ithin

the

flood

plai

n

Whe

re p

ossib

le, a

n ag

ency

shal

l use

nat

ural

syst

ems,

ec

osys

tem

pro

cess

es, a

nd n

atur

e-ba

sed

appr

oach

es w

hen

deve

lopi

ng a

ltern

ativ

es fo

r con

sider

atio

n.

Exec

utiv

e O

rder

136

90Se

ctio

n 2

(c)

Pres

ence

of f

lood

plai

n de

signa

ted

as su

ch o

n a

map

The

Agen

cy sh

all d

esig

n or

mod

ify it

s act

ions

so a

s to

min

imize

2 ha

rm to

or w

ithin

the

flood

plai

n.Fe

dera

l act

ions

affe

ctin

g or

affe

cted

by

Floo

dpla

in a

s def

ined

in 4

4 CF

R §

9.4

– re

leva

nt a

nd a

ppro

pria

te

44 C

FR §

9.1

1(b)

(1)

Miti

gatio

n

The

Agen

cy sh

all r

esto

re a

nd p

rese

rve

natu

ral a

nd b

enef

icia

l flo

odpl

ain

valu

es.

44 C

FR §

9.1

1(b)

(3)

Miti

gatio

n

The

Agen

cy sh

all m

inim

ize:

•Po

tent

ial h

arm

to li

ves a

nd th

e in

vest

men

t at r

isk

from

bas

e flo

od, o

r in

the

case

of c

ritic

al a

ctio

ns3

from

the

500-

year

floo

d;•

Pote

ntia

l adv

erse

impa

cts t

hat a

ctio

n m

ay h

ave

on

flood

plai

n va

lues

.

44 C

FR §

9.1

1(c)

(1) a

nd (3

) M

inim

izatio

n pr

ovisi

ons

Wild

life,

Thr

eate

ned

or E

ndan

gere

d Sp

ecie

s

Pres

ence

of M

igra

tory

bird

s lis

ted

in 5

0 CF

R §

10.1

3 N

o pe

rson

may

take

, pos

sess

, im

port

, exp

ort,

tran

spor

t, se

ll,

purc

hase

, bar

ter,

or o

ffer f

or sa

le, p

urch

ase,

or b

arte

r, an

y m

igra

tory

bird

, or t

he p

arts

, nes

ts, o

r egg

s of s

uch

bird

exc

ept

as m

ay b

e pe

rmitt

ed u

nder

the

term

s of a

val

id p

erm

it iss

ued

purs

uant

to th

e pr

ovisi

ons o

f thi

s par

t and

par

t 13

of th

is ch

apte

r, or

as p

erm

itted

by

regu

latio

ns in

this

part

, or p

art 2

0 of

this

subc

hapt

er (t

he h

untin

g re

gula

tions

).

Actio

n th

at h

ave

pote

ntia

l im

pact

s on,

or i

s lik

ely

to re

sult

in a

‘tak

e’ (a

s def

ined

in 5

0 CF

R §

10.1

2) o

f mig

rato

ry b

irds –

app

licab

le

Mig

rato

ry B

ird T

reat

y Ac

t, 16

U

.S.C

. §70

3(a)

50 C

FR §

21.

11

Pres

ence

of f

eder

ally

En

dang

ered

and

Thr

eate

ned

spec

ies l

isted

in 5

0 CF

R

Fede

ral a

genc

y sh

all,

in c

onsu

ltatio

n w

ith a

nd w

ith th

e as

sista

nce

of th

e Se

cret

ary,

insu

re th

at a

ny a

ctio

n au

thor

ized,

fu

nded

, or c

arrie

d ou

t by

such

age

ncy

is no

t lik

ely

to

Agen

cy a

ctio

n th

at m

ay je

opar

dize

list

ed

wild

life

spec

ies,

or d

estr

oy o

r adv

erse

ly

16 U

.S.C

. §15

36 (a

)(2)

–or S

ectio

n 7(

a)(2

) of t

he

Enda

nger

ed S

pecie

s Act

of

2 M

inim

ize m

eans

to re

duce

to sm

alle

st a

mou

nt o

r deg

ree

poss

ible

. See

44

CFR

§ 9.

4 De

finiti

ons.

3

See

44 C

FR §

9.4

Def

initi

ons,

Criti

cal a

ctio

n. C

ritic

al a

ctio

ns in

clud

e, b

ut a

re n

ot li

mite

d to

, tho

se w

hich

cre

ate

or e

xten

d th

e us

eful

life

of s

truc

ture

s or f

acili

ties s

uch

as th

ose

that

pro

duce

, use

or

stor

e hi

ghly

vol

atile

, fla

mm

able

, exp

losiv

e, to

xic

or w

ater

-rea

ctiv

e m

ater

ials


Tabl

e 14

-3EP

A Re

gion

4 L

egal

Rec

omm

ende

d IR

OD

Loca

tion-

Spec

ific

ARAR

s and

TBC

s Tr

iang

le P

acifi

c Su

perf

und

Site

, Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

5 o

f 5

Loca

tion-

Spec

ific

ARAR

s and

TBC

s

Loca

tion

Requ

irem

ents

Prer

equi

site

Cita

tion(

s)

17.1

1(h)

– o

r crit

ical

hab

itat

of su

ch sp

ecie

s list

ed in

50

CFR

§ 17

.95

jeop

ardi

ze th

e co

ntin

ued

exist

ence

of a

ny e

ndan

gere

d sp

ecie

s or

thre

aten

ed sp

ecie

s or r

esul

t in

the

dest

ruct

ion

or a

dver

se

mod

ifica

tion

of h

abita

t of s

uch

spec

ies w

hich

is d

eter

min

ed b

y th

e Se

cret

ary

of In

terio

r, af

ter c

onsu

ltatio

n as

app

ropr

iate

w

ith a

ffect

ed S

tate

s, to

be

criti

cal,

unle

ss su

ch a

genc

y ha

s be

en g

rant

ed a

n ex

empt

ion

for s

uch

actio

n by

the

Com

mitt

ee

purs

uant

to su

bsec

tion

(h) o

f thi

s sec

tion.

NOTE

: Des

pite

that

con

sulta

tion

may

be

cons

ider

ed a

n ad

min

istra

tive

requ

irem

ent,

it sh

ould

be

perf

orm

ed to

en

sure

act

iviti

es a

re in

com

plia

nce

with

subs

tant

ive

prov

ision

s of t

he E

ndan

gere

d Sp

ecie

s Act

and

regu

latio

ns.

mod

ify c

ritic

al h

abita

t – a

pplic

able

1973

Pres

ence

of T

hrea

tene

d an

d En

dang

ered

Wild

life

liste

d in

50

CFR

§ 1

7.11

(h)

Exce

pt a

s pro

vide

d in

the

rule

, it i

s unl

awfu

l to

take

th

reat

ened

or e

ndan

gere

d w

ildlif

e in

the

Uni

ted

Stat

es.

NOTE

: Und

er 5

0 CF

R 10

.12

Defin

ition

s the

term

Tak

e m

eans

to p

ursu

e, h

unt,

shoo

t, w

ound

, kill

, tra

p, c

aptu

re,

or c

olle

ct, o

r att

empt

to p

ursu

e, h

unt,

shoo

t, w

ound

, kill

, tr

ap, c

aptu

re, o

r col

lect

.

Actio

n th

at m

ay je

opar

dize

Am

eric

an a

lliga

tor,

gree

n tu

rtle

, and

/or l

ogge

rhea

d tu

rtle

–

appl

icab

le

50 C

FR §

17.

21(c

)50

CFR

§ 1

7.31

(a)

50 C

FR §

17.

42(a

)and

(b)

ARAR

= a

pplic

able

or r

elev

ant a

nd a

ppro

pria

te re

quire

men

tCF

R =

Code

of F

eder

al R

egul

atio

nsCW

A =

Clea

n W

ater

Act

of 1

972

EPA

= U

.S. E

nviro

nmen

tal P

rote

ctio

n Ag

ency

NCA

C =

Nort

h Ca

rolin

a Ad

min

istra

tive

Code

NCD

EQ =

Nor

th C

arol

ina

Depa

rtm

ent o

f Env

ironm

enta

l Qua

lity

N.C

.G.S

. = N

orth

Car

olin

a Ge

nera

l Sta

tute

sPC

B =

poly

chlo

rinat

ed b

iphe

nyl

TBC

= to

be

cons

ider

edU

SACE

= U

.S. A

rmy

Corp

s of E

ngin

eers

U.S

.C. =

Uni

ted

Stat

es C

ode


Tabl

e 14

-4Co

st E

ffect

iven

ess M

atrix

Tria

ngle

Pac

ific

Site

Eliz

abet

h Ci

ty, N

orth

Car

olin

a

Page

1 o

f 1

Rele

vant

Con

side

ratio

ns fo

r Cos

t Effe

ctiv

enes

s Det

erm

inat

ion

Alte

rnat

ive

Cost

Ef

fect

ive?

Pres

ent

Wor

th C

ost

Long

-Ter

m E

ffect

iven

ess

and

Perm

anen

ce

Redu

ctio

n of

Tox

icity

, M

obili

ty, a

nd V

olum

e Th

roug

h Tr

eatm

ent

Shor

t-Te

rm E

ffect

iven

ess

Surf

ace

Soil

1 - N

o Ac

tion

No1

$ 0

Soils

act

ing

as c

ontin

uing

so

urce

of c

onta

min

atio

n to

th

e un

derly

ing

grou

ndw

ater

Min

imal

redu

ctio

n on

To

xici

ty, M

obili

ty, a

nd

Volu

me

Soils

act

ing

as c

ontin

uing

sour

ce o

f co

ntam

inat

ion

to th

e un

derly

ing

grou

ndw

ater

2 –

Exca

vatio

n an

d O

ff-Si

te

Disp

osal

Yes

$ 15

1,05

0

Maj

or re

duct

ion

in so

ils

cont

inui

ng to

adv

erse

ly

impa

ct q

ualit

y of

und

erly

ing

grou

ndw

ater

Maj

or re

duct

ion

in T

oxic

ity,

Mob

ility

, and

Vol

ume

Maj

or re

duct

ion

in so

ils c

ontin

uing

to

adve

rsel

y im

pact

qua

lity

of u

nder

lyin

g gr

ound

wat

er

Grou

ndw

ater

1 –

No

Actio

nN

o1$

0N

o ap

prec

iabl

e re

duct

ion

in

Long

-Ter

m ri

sk

Min

imal

redu

ctio

n on

To

xici

ty, M

obili

ty, a

nd

Volu

me

Cont

inue

d Ri

sk to

hyp

othe

tical

futu

re

resid

ent l

ivin

g on

the

prop

erty

and

/or

com

mer

cial

/ ind

ustr

ial w

orke

r wor

king

on

the

prop

erty

2 –

Inst

itutio

nal C

ontr

ols

Yes

$ 70

,00

Redu

ctio

n in

long

-ter

m ri

sk

Min

imal

redu

ctio

n on

To

xici

ty, M

obili

ty, a

nd

Volu

me

Cont

rolle

d Ex

posu

re o

f con

tam

inan

ts in

gr

ound

wat

er re

sulti

ng in

una

ccep

tabl

e ris

ks

to h

ypot

hetic

al fu

ture

resid

ent l

ivin

g on

the

prop

erty

and

/or c

omm

erci

al/ i

ndus

tria

l w

orke

r wor

king

on

the

prop

erty

3 –

Enha

nced

Bi

orem

edia

tion

and

Inst

itutio

nal C

ontr

ols

Yes

$1,2

02,0

99Re

duct

ion

in lo

ng-t

erm

risk

Redu

ces T

oxic

ity, M

obili

ty,

and

Volu

me

of c

onta

min

ants

in

thro

ugh

min

eral

izatio

n of

co

ntam

inan

ts b

y m

icro

bes i

n th

e gr

ound

wat

er

Even

tual

elim

inat

ion

of c

onta

min

ants

in

grou

ndw

ater

resu

lting

in u

nacc

epta

ble

risks

to

hyp

othe

tical

futu

re re

siden

t liv

ing

on th

e pr

oper

ty a

nd/o

r com

mer

cial

/ ind

ustr

ial

wor

ker w

orki

ng o

n th

e pr

oper

ty

Not

es:

1 –

This

alte

rnat

ive

does

not

redu

ce ri

sks t

o hu

man

hea

lth a

nd th

eref

ore

is no

t con

sider

ed c

ost e

ffect

ive


APPENDIX B Tables 2(Part 2 of 3) - Department of Justice

Documents

Transcript of APPENDIX B Tables 2(Part 2 of 3) - Department of Justice