### DRAFT

SDM S DOCI

D „„^ ^



### Snperfwini dRecord s Cente r SITE : Q'CQr>^5 ^ BREAK : g'. S OTHER :

DRAF T

200 3 RIGG S BROO K SEDIMEN T MONITORIN GREPOR T O'CONNO RCOMPAN

Y SUPERFUN

D SIT E AUGUSTA , MAIN

E DECEMBER200 3

i' \

# I 

# TABL E O F CONTENT SDRAF T

200 3 RIGG S BROO K

SEDIMEN T MONITORIN GREPOR T TABL E O FCONTENT S

SECTIO N TITL E PAG E NO

. EXECUTIV E SUMMAR Y 1 1

. INTRODUCTIO N 4 2

. SEDIMENT/WETLAN D SOI LSAMPLIN G 5 2. 1 Genera l Weathe r

an dStreamCondition s 5 2. 2 SedimentAVetlan dSoi l Sampl e Location s 6 2. 3 SedimentAVetlan dSoi l Sampl e Collectio n Method s 1 1 2. 4 Compositio n o f

SedimentAVetlan dSoil s 1 2 3. 0 SEDIMENTAVETLAND SOILANALYTICA LMETHOD S AN D RESULT S 1 3 3. 1 SedimentAVetlan dSoi l Analytica l Method s 1 3 3. 2 SedimentAVetlan dSoi l Monitorin g Result s 1 3 3. 3 SedimentAVetlan dSoi l Quality Contro l Result s 1 5 3.3. 1 Evaluatio n o f

Quality Contro l Elements 1 5 3.3.1. 1 Dat aCompletenes s 1 5 3.3.1. 2 Metho dBlank s 1 5 3.3.1. 3 Surrogat e Recoverie s 1 6 3.3.1. 4 Equipmen t

an dFiel dBlank s 1 6 3.3.1. 5 Calibratio n Result s 1 7 3.3.1. 6 Matri x Spik e Sample s 1 8 3.3.1. 7 Laboratory Contro l Sample s 1 8 3.3.1. 8 Fiel dDuplicate Sample s 1 8 3.3.1. 9 Sampl e Quantificatio n 1 9 3.3. 2 Summar

y o f Quality Contro l Sampl e Result s 1 9 3.3. 3 Evaluatio n o f

PARC C Parameter s 2 0 3.3.3. 1 Precisio n 2 0 3.3.3. 2 Accurac y 2 1 3.3.3. 3 Representativenes s 2 1 3.3.3. 4 Completenes s 2 1 3.3.3. 5 Comparability 2 2 4

. SUMMAR Y O F200 3 SEDIMENTAVETLAND SOI LANALYTICA LRESULT S 2 3 4. 1 Compariso n o f

200 3 SedimentAVetlan dSoi l Analytica l Result s t o Targe t Leve l 2 3 4. 2 Compariso n o f

200 3 SedimentAVetlan dSoi l Analytica l Result s t o Previou s SedimentAVetlan d Soi l Dat a2 3 4. 3 Mann-Kendal l Statistica l Tren dTes t 2 3 5

. CONCLUSION S AN D RECOMMENDATION S 2 6

WOODARD&CURRA N (211749,01 ) TO C - i 12/10/200 3 DRAFT SE D RP T 200 3DRAF T

200 3 RIGG S BROO K

SEDIMEN T MONITORIN GREPOR T TABL E O FCONTENT S

LIS T O FFIGURE S FIGURE TITL E PAG E NO

. Figur e 1 : Tota l PCB s i n Rigg s Broo k SedimentsAVetlan dSoils-Septembe r 200 3 8 Figur e 2 : Tota l PCB s i n Rigg s Broo k SedimentsAVetlan dSoils-Upstrea m& Downstrea m Septembe r

200 3 9 Figur e 3 : Supplementa l Samples , Tota l PCB s i n Rigg s Broo k Wetlan dSoils/Sediments

Septembe r

200 3

.. . 1 0

LIS T O FTABLE S TABL E TITL E PAG E NO

. Tabl e 1 : Concentration s of PCB s Exceedin g th e Targe t Leve l o f 5 mg/kg 2 Tabl e 2 : Monthl y Rainfal l 199 6 - 200 3 Augusta , M E 5 Tabl e 3 : 200 3 Rigg s Broo k SedimentAVetlan dSoi l Monitorin g Sampl e Result s 1 4 Tabl e 4 : Compariso n o f 200 3 SedimentAVetlan dSoi l Monitorin g Result s t o Historica l Result s 2 4

LIS T O FACRONYM S AN D ABBREVIATION S LIS T O FREFERENCE S

APPENDICE S Appendi x A Appendi x B Appendi x C SedimentAVetlan dSoi l Samplin g Surve y Dat a

198 7 Remedia l Investigatio n Rigg s Broo k Sedimen t an dBiot aDat a Man n Kendal l Tren dAnalysi s Sedimen t Sampl e Result s 199 6 - 200 3

WOODARD & CURRAN (211749,01 ) DRAFT SED RP T 200 3 TO C - i i 12/10/200 3

# I EXECUTIV E SUMMAR YDRAF T

EXECUTIV E SUMMAR Y

I n accordanc e wit

hth e Rigg s Broo k

Sedimen t

an dBiot aSamplin g an dAnalysi s Plan (SAP ) (W&C , 1997) , sedimen t

samplin g a

t Rigg s Broo k

wa s complete do n Septembe r 11 , 2003

. Thirty-si x sediment/wetlan dsoil-monitorin g sample s (excludin g quality contro l sample s suc h a s duplicates ) wer e collecte ddurin g th e 200 3 samplin g event

. Sample s wer e collecte da t al l o f th e origina l twenty-fou r

location s propose di n th e SA P (800 1 t o 8023) , an da t location s 803 9 an d3018 , whic hwer e adde dt o th e progra min 1998

.
In conjunctio n wit

hasupplementa l samplin g gri dthat wa s sample di n 2000 , te n additiona l sedimen t sample s wer e collecte di n an are abetwee n th e former Sourc e Contro l Are ao f th e O'Conno r

Compan y Superfun dSit e (th e Site ) an dRigg s Brook

. Sample s 9B000 , 9C000 , 9C025 , 9C050 , 9C075 , 9C10 0 an d 9C12 5 wer e sample di n 2000

. Location s 9A925 , 9B92 5 an d9C925 , eas t o f th e former

200 0 supplemental grid , wer e adde din 200 1 an dwer e again-sample dthi s year . Th e purpos e o f collectin g thes e sample s wa s t o confirmdetection s o f targe t PC B Arochlor s reporte dfo r location s o n th e supplementa l gri di n 200 0 andt o establis hi f ther e ar e any trend s wit hrespec t t o sedimen t

sampl e concentration s o f

PCB s throug htime

. Sedimen t sample s were collecte dusin g a4-foo t long , 1.5-inch diamete r acetat e macrocor e line r at submerge dlocations

. At dr y locations , acore-samplin g devic e wa s manuall y pushe dapproximatel y si x inche s int o th e groun dt o collec t wetlan dsoils

. Th e sediment s an dwetlan dsoil s collecte di n 200 3 primaril y consiste dof

clay covere db y alaye r of silt

. Th e to p portio n o f wetlan dsoi l sample s ofte n containe droot s an dgrass . Th e soi l wa s shake n fro mth e root s an dinclude di n th e sample

. However , th e root s an dgras s wer e discarde dan dwer e no t include da s part

o f th e sampl e matrix

. Sedimen t an d wetlan dsoi l sample s wer e thoroughl y homogenize din stainles s stee l bowl s prio r t o placemen t

int o sampl e jars

.
PC B concentration s for

al l sediment/soi l sample s collecte ddurin g th e 200 3 programwer e compare d agains t atarge t leve l of 5 mg/kg , an dal l o f

th e thirty-si x sample s hadtotal PCB s concentration s belo w thi s targe t level

. Th e averag e concentratio n of tota l PCB s for

th e thirty-si x sample s (usin g detectio n limi t value s for no n detec t

samples ) wa s 0.4 3 mg/kg

. Tota l PCB s range dfromnon-detec t t o 4. 4 mg/kg

.

WOODARD & CURRA N (211749,01 ) Pag e 1 12/10/200 3 DRAFT SE D RP T 200 3DRAF T

Th e 2003-sediment/wetlan dsoi l result s wer e compare dagains t historica l results , 198 7 an d199 6 throug h 2002 , wit hth e followin g observations

. Concentration s o f tota l PCB s a

t sampl e point s upstrea mo f th e Sit e hav e bee n belo w detectio n limit s ever y yea r in whic hsample s hav e bee n collecte dan danalyzed

.
Fo r th e are aof

Rigg s Broo k

adjacen t t o th e Site , PCB s hav e no t detecte dabov e th e targe t leve l o f 5 mg/kg a t any sampl e location s in 1987 , 199 6 an d2003

. Fro m199 7 t o 2002 , ther e wer e sporadi c exceedance s of

th e targe t leve l at on e o r tw o location s per

year , a s show n in Tabl e 1 below

.

TABL E 1 : CONCENTRATION S O FPCB s EXCEEDIN G TH E TARGE T LEVE LO F5 MG/K G ^.ev f

800 4 801 3 301 8 800 6 

## iiPfe) ^

2 9 5. 7 J :(ing/kg)- ; :-1199 9

.



# IfcB^-

-

6. 4 15. 9 1 4 .j.2000

PCB s (mg/kg )

10. 4 ZOOlv' l PGB^; c (mg/kg )

6. 1 'r,2002'". : :5ROBs-'- ' •#''i200 3 •*< !

5.6 3 J
Notes : Indicate s that

th e concentratio n of

PCB s wa s belo w th e targe t leve l o f 5 mg/kg

CfUf^CM— i A t th e reques t

o f th e USEPA , fifty-on e sedimen t sampl e points , locate dalon g agri dbetwee n th e Sit e an d Rigg s Brook , were adde dt o th e sediment-samplin g progra mi n 2000

. Al l sample s collecte dat point s fro mthi s gri dhadconcentration s o f total PCB s belo w th e targe t leve l of 5 mg/kg excep t

9B000 , 9C050 , 9C07 5 and9C125

. Eac ho f thes e points , plu s severa l other s that hadno t exceede dth e targe t

level , wer e re-sample din 2001

. Thre e additiona l points , 9A925 , 9B92 5 an d9C925 , wer e als o sample din 2001

. Th e
same 1 0 location s on th e supplementa l gri dtha t wer e sample di n 200 1 an d200 2 wer e re-sample d•iQr'' ^ 2003

. PCB s wer e detecte da t al l th e 1 0 location s an dconcentration s range dfro m0.2 1 mg/k g a t 9B92 5 t o 2. 1 mg/kg a

t 9B000

. Result s for

othe r 200 3 sample s wer e similar t o concentration s reporte dpreviously

. A s in 200 1 an d2002 , in 2003 , non e o f th e sample s collecte dat

thes e 1 0 additiona l location s exceede dth e targe t level

.
Downstrea mof

th e Sit e at

sampl e location s 801 8 throug h8023 , concentration s o f tota l PCB s hav e bee n belo w th e 5-mg/kg-targe t leve l eac hyear . In 2003 , concentration s o f PCB s a t al l downstrea msampl e location s wer e non-detect

.

WOODAR D & CURRA

N (211749,01 ) DRAF T SE D RP T 2003 Pag e 2 12/10/200 3DRAF T

In accordanc e wit

hth e SAP , aMann-Kendal l statistica l tren danalysi s wa s use dt o determin e i f concentration s o f

tota l PCB s i

n sedimen t

sample s collecte dbetwee n 199 6 an d200 3 indicat e atrend

. Th e result s fromthi s tes t

d o no t indicat e any significan t

trend s relativ e t o increase s o r decrease s i n PC B concentration s a

t any o f th e samplin g location s wit hfour o r mor e year s of

data

.

WOODARD&CURRA N (211749,01 ) Pag e 3 12/10/200 3 DRAF T SE D RP T 200 3

# SECTIO N 1DRAF T

1

. INTRODUCTION- ^ Thi s documen t

constitute s th e 200 3 Rigg s Broo k Sedimen t Monitorin g Report

(Report ) for

th e O'Conno r Compan y Superfun dSit e (th e Site ) i n Augusta , Maine

. I n Apri l 1996 , th e U.S

. Environmenta l Protectio n Agenc y (USEPA ) designate dRigg s Broo k a s Operabl e Uni t

3 (OU-3 ) of

th e Site

. Thi s Repor t

ha s bee n prepare dby Woodar d& Curran Inc

. (W&C) , th e Supervisin g Contractor , o n behal f o f Centra l Main e Powe r (CMP) , th e Settlin g Defendan t i n accordanc e withth e Consen t Decre e i n Unite dState s o f Americ av . Centra l Main e Power , Civi l No

. 900302B , entere do n Septembe r 3 , 1991 , an dth e Explanatio n
o f Significan t

Difference s (ESD) , approve dan dissue db y th e USEP A o n Jul y 11 , 1994

.
Thi s Report

present s th e analytica l result s o f th e 200 3 sedimen t

samplin g activitie s complete da t OU- 3

an dprovide s acompariso n t o sedimen t dat acollecte dfro m199 6 throug h200 3 an dt o th e sedimen t dat a generate da s apart

of th e Remedia l Investigatio n Report for th e Site , Volum e I (RI ) complete db y E.C

. Jorda n in 1987

. Th e 200 3 sediment-samplin g even t wa s conducte di n accordanc e withth e Rigg s Broo k Sedimen t an dBiot aSamplin g an dAnalysi s Plan (SAP) , (W&C , 1997)

. Th e 200 3 samplin g even t represente dth e eighthannual sediment-samplin g even t sinc e remedia l actio n wa s initiate da t th e O'Conno r Sit e i n 1996

.
Th e dat aquality objectiv e (DQO ) for eac hsediment-samplin g even t i s t o determin e i f

PC B concentration s ar e belo w 5 pp ma t al l samplin g locations

. I n accordanc e wit

hth e SAP , th e analytica l result s fro meac hsamplin g even t wil l b e use dt o evaluat e whethe r additiona l samplin g i s necessary an dif further remedia l actio n withi n Rigg s Broo k i s necessary t o reduc e th e potentia l ris k t o human health an d th e environment

. Sectio n 2 o f

thi s report

describe s genera l weathe r an dstrea mcondition s durin g samplin g collection , sedimen t sampl e locations , sampl e collectio n methods , an dadescriptio n of th e soi l type s for

th e sedimen t samples

. Sectio n 3 summarize s analytica l results , includin g associate dquality contro l result s for th e sediment/wetlan dsoi l samples

. Sectio n 4 present s acompariso n of 200 3 sediment/wetlan dsoi l PC B concentration s t o th e targe t level , an dt o previousl y collecte ddata

. Als o include din Sectio n 4 ar e th e result s o f

th e Mann-Kendal l statistica l tren danalysis

. Sectio n 5 provide s conclusion s o f th e 200 3 samplin g even t

an drecommendation s for future actions

.

WOODARD&CURRA N (211749,01 ) Pag e 4 12/10/200 3 DRAFT SE D RP T 200 3

# SECTIO N 2DRAF T

SEDIMENT/WETLAN D SOI L SAMPLIN G V-££ , r^(t/

- ^.j o ^^Lit-^-y- ' s--'!rv ^ 

# t J

Thi s sectio n describe s th e genera l streamandweathe r conditions , th e sediment/wetlan dsoi l samplin g locations , th e collectio n method s an dgeneral sedimen t composition

.

2. 1 GENERA L V^^EATHE RAN D STREA M CONDITION S Thirty-si x sediment/wetlan dsoi l sample s were collecte di n Rigg s Broo k o n Septembe r

11 , 2003

. Th e weathe r condition s durin g sampl e collectio n wer e sunny wit htemperature s aroun d7 5 degree s Fahrenheit

. Accordin g t o th e Nationa l Weathe r Service , rainfal l for

th e August aare awa s wel l belo w
norma l for

Jun e an dJul y 2003

. Augus t rainfal l wa s slightl y abov e normal

. Althoug harainstor mdurin g th e wee k prio r t o th e samplin g even t

droppe dapproximatel y 1. 3 inche s o n th e area , mos t of th e rainfal l i n Septembe r

fel l after th e samplin g even t

hadoccurred

. Du e t o th e fac t that th e rainfal l durin g mos t

o f th e
summe r wa s belo w normal , th e portion s o f Rigg s Broo k

upstrea man dadjacen t

t o th e Sit e wer e ver

y dry

. Wate r level s at th e confluenc e of

th e Eas t an dWes t

Branche s o f

Rigg s Broo k

an dpoint s downstrea m
wer e als o low

. Beave r

dams , whic hhadcreate dlarg e damme du p pool s i n previou s years , wer e no t a s plentifu l i n 2003

. Tabl e 2 show s monthl y rainfal l i n inche s for th e thre e month s prio r

t o samplin g eac h year , an dth e rainfal l durin g th e mont ho f September

.



### tYea r 199 6 199 7 199 8 199 9 200 0 200 1 200 2 200 3 TABL E 2 :



### , "'Ijune'

. "

. "'- ' 3.3 4 3.6 4 10.3 2 1.1 1 1.7 9 4.0 9 3.8 1 1.5 1 MONTHL Y RAINFAL L199 6 - 200 3 AUGUSTA , M E
.; ' , ^Erecipi'tatio n (Inches)^'^'.?^^"' '

. - ; yj^^^ui^^: , * ' 

## '^.ilt'S^^Mont h' V a^ : ' ' " : '4^i^¥^:^^''ik , ,J.--*JujyV^'V''*".,-'

- 8.6 7 3.5 5 1. 3 1.54 6.3 3 2.1 2 2.0 2 1.6 7 "' ' ""'August'"'' '

1.0 2 3.1 5 1.5 1 2.2 4 1.6 7 0.3 2 1. 2 4.0 0 

# „se&tr^^r>' /

7.5 3 3.2 5 1. 6 11.2 9 1.6 4 3.9 8 3.2 8 6.2 1

WOODARD & CURRAN (211749,01 ) DRAFT SE D RP T200 3 Pag e 5 12/10/200 3DRAF T

2. 2 SEDIMENT/WETLAN D SOI L SAMPL E LOCATION S Th e thirty-si x sediment/wetlan dsoi l sampl e location s ar e illustrate din Figure s 1 , 2 an d3

. Sampl e location s wer e relocate dusin g adigita l geographica l positionin g syste m(DGPS)

. Surve y dat acollecte d for th e sampl e location s i s presente di n Appendi x A

. Sampl e collectio n began downstrea ma t sedimen t sampl e locatio n 802 3 an dprogresse dt o th e furthes t upstrea mlocatio n at

8002B

. A s define din th e SAP , sedimen t sample s wer e collecte da t submerge dlocations , whil e wetlan dsoi l sample s wer e collecte dat non-submerge dlocations

.
Downstrea mof

th e Site , si x sedimen t

sample s wer e collecte dat interval s o f

approximatel y 120 0 feet fro mlocation s 802 3 t o 8018

. Th e furthes t downstrea msedimen t

sampl e location , 8023 , i s jus t upstrea m fro mwher e Rout e 105 crosse s Rigg s Broo k (se e Figure s 1 an d2)

. Fiftee n sediment/wetlan dsoi l sample s wer e collecte do n a n approximat e 100-foo t

gri di n a

n are ao f Rigg s Broo k

adjacen t t o th e Site

. Sampl e location s withi n thi s are ainclud e 800 3 throug h8017

. Wetlan d soi l sample s continu e t o b e collecte da t sampl e location s 301 8 an d803 9 als o adjacen t t o th e Site

. Initially , thes e location s wer e mistakenl y sample di n 1998

. Bothlocation s hav e bee n include di n th e Rigg s Broo k

Sedimen t Samplin g Progra mever

y yea r sinc e 1998

.
In conjunctio n wit

hasupplementa l samplin g gri dtha t wa s sample din 2000 , te n additiona l sedimen t sample s wer e collecte di n an are abetwee n th e Sit e an dRigg s Brook

. Sampl e location s 9B000 , 9C000 , 9C025 , 9C050 , 9C075 , 9C10 0 an d9C12 5 wer e sample di n 2000

. Location s 9A925 , 9B92 5 an d9C925 , locate deas t

o f th e 200 0 supplementa l gri dwer e adde din 2001

. Th e purpos e o f collectin g thes e sample s
wa s t o monito r

detection s o f

targe t PC B Arochlor s reporte dfor th e gri dlocation s i n 2000

.
Man y sampl e location s adjacen t t o th e Sit e that

wer e covere dwit

hwate r durin g previou s samplin g episode s wer e no t

submerge dbecaus e o f

th e lac k of precipitatio n durin g th e summer . Thre e sediment/wetlan dsoi l sample s wer e collecte da s backgroun dsample s upstrea mo f Rout e 1 7 an d th e Site

. I

n accordance.withth e SAP , sediment/wetlan dsoi l sample s were collecte dat sampl e locatio n 800 1 approximatel y 20 0 feet upstrea mo f

Rout e 17 , an da

t sampl e locatio n 8002 A approximatel y 30 0 feet upstreamof

Rout e 1 7 withi n adens e stan dof alde r trees

. In addition , athir dsedimen t sample , 8002B , wa s collecte dapproximatel y 210 0 feet upstreamo f

Rout e 17 , upstreamof

a n abandone drailroa d trestle

.

WOODARD&CURRA N (211749.01 ) Pag e 6 12/10/200 3 DRAFT SED RP T 200 3

# o

9^, ; o o 

# a % o o 

# O

O l 

# O o 

# ^ o Or ) I i ^ ' \

/ /
UPLAN D i i MARS H

I I 8002 AAN D 8002 B UPSTREA M APPROX

. 30 0 FT

. AN D 210 0 FT. | S W O F RT

. 1 7 SE E FIGUR E ^ ^ 

# o
. M RESTORE D UPPE R LAGOO N

•^( ^ 8001.200 3 <0.03 2 pp m



### l i 8003.200 3 <0.03 1 pp m 

## Iii i 3018.200 3 4. 4 J pp m RESTORE D LOWE R LAGOO N 

# f) o Q

8004.200 3 <0.02 4 J pp m 8007.2003.51 ,

0.7 3 pp m 8007.200 3 0.7 7 pp m 8009.200 3

0.2 0 pp m


# o 8011.200 3 <0.02 9 pp m

8005.200 3 <0.02 7 pp m 8006.2003.5 1 0.9 3 pp m 

### i i 

# l i O i 8012.200 3 0.1 1 pp m

8006.200 3 0.9 5 pp m 8008.200 3 0.03 5 pp m 

# LEGEN D

o © TRE E LIN E

BRUS H MARS H EDG E O F BROO K EDG E O F PAVE D ROAD GRAVE L ROA D TRE E EXISTIN G BUILDIN G POWE R LIN E SEDIMEN T SAMPL E LOCATIO N

= PARTS PE R MILLIO N O R MG/K G 8019.200 3 <0.04 4 pp m 350 0 FT

. T O RT

. 10 5

8017.200 3 <0.03 4 p p 

# A\

i l 1 V A

x V



# ^r^ ^



# o 8010.200 3 0.02 4 pp m 8013.200 3

<0.02 3 pp m •p^- T 8014.200 3 0.1 7 pp m
\ 8015.200 3

<0.02 4 pp m N 8016.200 3 0.03 1 pp m

- ^



### 7- ^ SpAcit ^ THRE E ADDITIONA L SEDIMEN T SAMPLE S (8021 , 802 2 & 8023 ) WERE TAKE N DOWNSTREA M A

T DISTANCE S O F APPROXIMATEL

Y 1200 ' BETWEE N EAC H SAMPL E (SE E FIGUR E 2 )

-CONFLUENC E O F EAST AN D WES T BRANCHE S O F RIGG S BROO K 

### NOTE S

• BOUNDARIE S O F RESTORE D LAGOON S ESTIMATE D (1/98 ) BASE D ON WETLAN D

. RESTORATIO N PLA N (DRAWIN G C-12 , 100 % DESIGN , JUL

Y 1996) , AN D NE

W WETLAND , FINA L TOPOGRAPH Y (APPENDI X D DRAFT SCR A REPORT , DECEMBE R 1997)

. r ' DES.BY : LE M DR.BY : JB C CK.BY : RD D

O'CONNO R COMPAN Y SUPERFUN D SIT E 200 3 RIGG S BROOKSEDIMENT MONITORIN G REPOR

T FIGUR E 1 

### TOTA L PCB s I N RIGG S BROO K SEDIMENTS/WETLAN D SOILS

SEPTEMBE R 200 3 SCALE : 1=20 0 DATE : DECEMBE R 200 3 JO B NO. : 211749.0 1 21174901-H001-M R 

## WOODARD&CURRA N Engineerin g • Scienc e • Operation s200 0 fee t

scal e 200 0 400 0

SIT E MA P COMPILE D FRO M U,S,G,S , TOPOGRAPHI C QUADRANGLE S FO R TOGU S POND , MAINE , PHOTOINSPECTE D 1982 , AN D AUGUSTA , MAIN E PHOTO

INSPECTE D 1980

. DES.BY : LE M DR,BY : JB C CK,BY : RD D O'CONNO R COMPAN Y SUPERFUN D SIT E 200 3 RIGG S BROO KSEDIMEN T MONITORIN G REPOR T FIGUR E 2 TOTA L PCB s I N RIGG S BROO K SEDIMENTS/WETLAN D SOIL S UPSTREA M AN D DOWNSTREA M O F SIT E SEPTEMBE R 200 3 SCALE : 1"=20G0 ' DATE : DECEMBE R 200 3 JO B NO. : 211749.0 1 SHEET : 21174901-H002-M R 

## VVOOCARD & CURRA N Engineerin g • Scienc e • Operation ss0f ~

MARS H GRAS S > ^ >



# « V

PROPERTY LIN E &

- SUPERFUN D SIT E BOUNDAR Y

ARC H CULVER T 12'WID E A T BAS E INV , EL , 174,86 '
^^> ^ 1 4 

# f ^ J^^rv

^ C'>-^ i lyffO O



# LEGEN D

9C02 5 -1-0.4 9 TO P VALU E I S TH E SAMPL E LOCATION

.

BOnO M VALU E I S TH E CONCENTRATIO N O F PCB s I N PP M O

R mg/kg

. FORME R ARE A3 O F TH E SIT E FORME R ARE A 2 O F TH E SIT E

4 0 scal e 4 0 8 0 fee t

DES.BY : LE M | DR.BY : JB C j CK.BY : RD D 0 CONNO R COMPAN Y SUPERFUN D SIT E 200 3 RIGG S BROO KSEDIMEN T MONITORIN G REPOR T FIGUR E 3 SUPPLEMENTA L SAMPLE S TOTA L PCB s I N RIGG S BROO K WETLAN D SOILS/SEDIMENT S SEPTEMBE R 200 3 SCALE : 1''=40 ' DATE : DECEMBE R 200 3 JO B NO. : 211749.0 1 21174901-H003-M R 

# WOODARD&CURRA N Engineerin g • Scienc e • Operation sDRAF T

2. 3 SEDIMENTAVETLAN D SOI L SAMPL E COLLECTIO N METHOD S Th e sampl e collectio n metho duse da t eac hsampl e locatio n i s discusse din thi s subsection

.
At submerge dsampl e locations , sedimen t sample s wer e collecte dusin g 1.5-inch diamete r acetat e (o r simila r material ) macrocor e liners

. Th e acetat e line r wa s manuall y pushe dint o th e sediment s t o adepth

o f up t o si x inches

. Onc e th e line r wa s pushe dt o maximu mpenetration , th e en dof th e line r that wa s no t i n th e sediment s wa s covere dwithaglove dhan dt o preven t th e los s of

th e sample , an dth e line r wa s withdraw n fro mth e botto mo f th e brook

. Surfac e wate r wa s draine doff

, an dth e content s of

th e line r
wer e emptie dint o astainles s stee l bow l an dhomogenized

. Th e homogenize dsediment s wer e the n transferre dint o asampl e jar

.
At non-submerge dsampl e locations , wetlan dsoi l sample s collecte dfro m200 1 t o 200 3 wer e obtaine d usin g acor e sample r

that wa s manuall y pushe dint o th e ground

. Th e cor e sample r containe daline r

that fille dwithsoil s a s th e devic e wa s advance dint o th e ground

. Wetlan dsoi l sample s wer e collecte dfro m th e surfac e t o approximatel y si x inche s belo w groun dsurfac e (bgs)

. Sample s wer e transferre dt o a stainles s stee l bow l fro mth e line r of th e cor e sampler

. Th e to p portio n o f th e wetlan dsoi l sampl e cor e generall y consiste do f

gras s an droots

. Th e root s wer e shake n t o remov e any soi l trappe dwithi n the m
an dadde dt o th e soi l fro mth e remainde r o f th e core . Th e root s an dgras s wer e discarde dan dwer e no t include da s part

o f th e sample

. Th e wetlan dsoi l sampl e wa s the n homogenize dan dtransferre dt o th e sampl e ja r

usin g astainles s stee l spoon . Fro m199 6 t o 200 0 wetlan dsoi l sample s wer e collecte dusin g stainles s stee l spoons . Sediment/wetlan dsoi l sample s consiste dof discret e samples , collecte da t adepth

o f 0 t o 6 inche s belo w th e groun do r sedimen t surface

. Stainles s stee l bowl s an dspoon s wer e decontaminate dbetwee n sampl e location s in accordanc e wit h th e SAP

. Acetat e macrocor e an dcor e sample r liner s wer e dispose dof

after eac hsampl e wa s collected

.

WOODARD&CURRA N (211749.01 ) Pag e 1 1 12/10/200 3 DRAF T SE D RP T 200 3DRAF T

2. 4 COMPOSITIO N O FSEDIMENTAVETLAN D SOIL S Th e majorit

y o f th e sediment/wetlan dsoi l sample s collecte ddurin g th e 200 3 samplin g effor t consiste do f sil t and/o r clay ofte n overlai n by several inche s of organics

. A smal l number of sample s als o hadsan d mixe di n wit

hth e sil t and/o r clay

. Th e percen t

solid s conten t

o f th e sediment/wetlan dsoi l sample s range dfro m4 5 percen t

at 801 9 t o 8 7 percen t

a t 8013

.

WOODARD&CURRA N (211749,01 ) Pag e 1 2 12/10/200 3 DRAF T SE D RP T 200 3

# SECTIO N 3DRAF T

/ 3 ^ rUV' ^ A * 3. 0 SEDIMENTAVETLAN D SOI L ANALYTICA LMETHOD S AN D RESULT S ''^'"'^. ^
Thi s sectio n describe s sediment/wetlan dsoi l analytica l methods , an dsummarize s th e analytica l results

.

3. 1 SEDIMENTAVETLAN D SOI L ANALYTICA L METHOD S Al l sediment/wetlan dsoi l sample s were analyze dfor PCB s usin g USEP A Metho d808 2 at Severn Tren t Laboratorie s i n Buffalo , Ne w York

. Laboratory analytica l level s wer e consisten t withUSEP A Leve l IV requirements

. Sampl e analysi s fo r PCB s include dth e followin g Arochlors : Arochlo r 1016 , 1221 , 1232 , 1242 , 124 8 125 4 an d1260

. Th e calibratio n level s use dfor Arochlor s 101 6 an d126 0 wer e 0.025 , 0.05 , 0.10 , 0.25 , 0.50 , 1.0 , an d2. 5 ppm . A singl e poin t

calibratio n standardwa s use dfor al l othe r Arochlors

. Mos t

sample s hadPC B concentration s that

wer e eithe r

non-detec t

o r wer e withi n th e calibratio n rang e use dfor th e associate d instrumentation

. However , dilution s were performe dfor 3018.200 3 (twenty-fol ddilution) , 9B000.200 3 (ten-fol ddilution) , an d9C075.200 3 (ten-fol ddilution) t o brin g sampl e concentration s withi n th e calibratio n range .

3. 2 SEDIMENTAVETLAN D SOI L MONITORIN G RESULT S Th e analytica l result s obtaine dfro mth e Septembe r 11 , 200 3 samplin g effor

t ar e summarize di n Tabl e 3

an dFigure s 1 throug h3

. Th e concentration s o f

total PCB s for

al l thirty si x sampl e location s wer e belo w th e actio n leve l of 5 mg/kg

. PCB s wer e no t

detecte din sample s collecte dat any of th e upstrea msedimen t

sampl e location s (8001 , 8002A , 8002B)

. Th e concentration s of tota l PCB s in al l o f

th e sampl e location s adjacen t t o th e Sit e (800 3 t o 8017 , supplementa l gri dsampl e location s an d3018 , 8039 ) range dfro m< 0.02 3 t o 4. 4 mg/kg

. PCB s wer e no t

detecte di n 8 o

f th e 2 7 sample s collecte dfro mthi s area . PCB s wer e no t detecte d

at any o f th e downstrea mlocation s (801 8 - 8023)

.

WOODARD&CURRA N (211749.01 ) Pag e 1 3 12/10/200 3 DRAF T SED RP T 200 3

### DRAF T

TABLE 3 : 

### 200 3 RIGG S BROO K SEDIMENT/WETLAN D SOI L MONITORIN G SAMPL E RESULT S

^ "

. . Sample'ID';vVr< "

3018.200 3 8001.200 3 8002A.200 3 8002B.2003/8002B.2003.5 2 8003.200 3 8004.200 3 8005.200 3 8006.2003/8006.2003.5 1 8007.2003/8007.2003.5 2 8008.200 3 8009.200 3 8010.200 3 8011.200 3 8012.200 3 8013.2003 8039.200 3 8014.2003 8015.2003 8016.200 3 8017.2003 8018.2003 8019.200 3 8020.200 3 8021.2003/8021.2003.5 1 8022.200 3 8023.200 3 9A925.200 3 9B925.200 3 9B000.200 3 9C925.200 3 9C000.200 3 9C025.200 3 9C050.200 3 9C075.200 3 9C100.200 3 9C125.200 3 Tota l PC B Concentratio n '(mg/kg)'^^,'.'?^:^,

. 4. 4 J <0.03 2 <0.03 9 <0.037<0.03 5 <0.03 1 <0.02 4 J <0.02 7 0.95/0.9 3 0.77/0.7 3 0.03 5 0.2 0 <0.02 4 <0.02 9 0.1 1 <0.02 3 0.08 8 0.1 7 <0.02 4 0.03 1 <0.03 4 <0.04 8 <0.04 4 <0.03 2 J <0.039/<0.03 9 <0.03 8 <0.0 3 0.6 7 0.2 1 2. 1 0.7 7 0.6 0 0.4 9 0.3 5 0.7 8 1. 1 1. 0 Sampl e Location'

- . ^

. ^ I ^ " ' Adjacen t t o O'Conno r

Sit e Upstrea mo f

O'Conno r

Sit e Upstrea mo f

O'Conno r

Sit e Upstrea mof

O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Cormo r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Downstrea mof

O'Conno r

Sit e 1 Downstrea mof

O'Conno r

Sit e Downstrea mof

O'Conno r

Sit e Downstrea mof

O'Conno r

Sit e Downstrea mof

O'Conno r

Sit e Downstrea mo f

O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e 1 Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Adjacen t t o O'Conno r

Sit e Notes : Duplicat e sample s are identifie dwit h .5 1 suffix

. J Qualifier

indicate s th e sampl e concentratio n i s estimated

.

WOODARD & CURRAN (211749,01 ) DRAFT SED RP T 200 3 Pag e 1 4 12/10/200 3DRAF T

3. 3 SEDIMENT/WETLAN D SOI L QUALIT Y CONTRO L RESULT S Th e concentration s of

PCB s obtaine ddurin g th e 200 3 Rigg s Broo k Sediment/Wetlan dSoi l samplin g at Rigg s Broo k

wer e validate dt o determin e th e quality an dusability o f th e data

. A USEP A Tie r I E dat a validatio n procedure wa s used

. Th e Tie r E I validatio n include s acompletenes s check , arevie w o f al l quality contro l result s a s wel l a s arevie w o f al l raw data

. Reference s use dt o complet e th e validatio n proces s includ e th e USEP A Regio n 1 Functiona l Guideline s for Evaluatin g Organi c Analyse s (USEPA , modifie d1988) , th e SCR A QAP P (W&C , 1996 ) an dth e Rigg s Broo k SA P (W&C , 1997)

. Validatio n result s an ddat aquality assessment s wer e base do n th e performanc e demonstrate di n th e analyse s o f quality contro l samples

. Sampl e qualifier s an dflags wer e applie dbase do n thes e results

. Thi s sectio n include s a

n evaluatio n o f

quality contro l elements , asummar y o f quality contro l sampl e results , an da n evaluatio n o f

precision , accuracy , representativeness , completenes s an dcomparability (PARCC)

.

3.3. 1 EVALUATIO N O FQUALIT Y CONTRO L ELEMENT S Quality contro l element s whic hwer e include di n th e Tie r H I validatio n an ddat aassessmen t includ e dat a completeness , holdin g times , metho dblanks , surrogat e recoveries , equipmen t an dfieldblanks , calibratio n results , matri x spikes , laboratory contro l sample s an dduplicat e samples

.

3.3.1. 1 DAT A COMPLETENES S Th e dat apackag e fro mSevern Tren t Laboratories , Inc. , Buffalo , NY , wa s reviewe dt o ensur e that al l sampl e an dassociate dquality assuranc e result s wer e available

. Sample s collecte di n associatio n wit h th e 200 3 sediment/wetlan dsoi l samplin g effor t wer e analyze di

n sampl e delivery grou p (SDG ) A03-8758

. Result s o f

th e completenes s revie w indicat e that al l collecte dsample s wer e analyze dan dthat al l quality contro l result s wer e availabl e t o complet e dat avalidatio n procedures

. Dat avalidatio n result s wer e use d t o asses s th e overal l quality o f reporte dPC B concentrations

.

3.3.1. 2 METHO D BLANK S Metho dblank s wer e analyze dt o determin e i f concentration s of

PCB s were introduce da t th e laboratory durin g th e preparatio n an danalysi s of th e samples

. Metho dblank s consiste do f analyt e fre e soil , whic h

wa s extracte dan dprocesse di n a n identica l manne r

t o th e sediment/wetlan dsoi l samples

. Ther e wer e n o detection s o f

PCB s i n any o f

th e metho dblank s associate dwit hsediment/wetlan dsoi l sample s collecte d

WOODARD&CURRA N (211749,01 ) Pag e 1 5 12/10/200 3 DRAFT SE D RP T 200 3DRAF T

durin g th e 200 3 samplin g event , indicatin g that laboratory contaminatio n o f PCB s int o sedimen t

sample s di dno t likel y occur .

3.3.1. 3 SURROGAT E RECOVERIE S Tw o surrogates , decachlorobipheny l (DCB ) an dtetrachlorometaxylen e (TCMX) , wer e adde dt o eac h sampl e prio r

t o extractio n t o ensur e that th e instrumentatio n use dt o obtai n PC B concentration s wa s responsiv e an dfunctionin g correctly

. A know n concentratio n o f eac hsurrogat e wa s adde dt o eac h sampl e prio r

t o sampl e extractio n an danalysis

. Th e reporte dconcentratio n o f eac hsurrogat e wa s divide db y th e know n concentratio n t o obtai n apercen t recovery . Th e percen t

recoverie s obtaine dfro m th e sampl e analyse s wer e compare dt o advisory limit s establishe dfor USEP A Metho d8082

. Th e USEP A advisory limit s for th e surrogat e recoverie s wer e statisticall y derive da t th e analytica l laboratory

. Th e advisory limi t

for acceptabl e DC B recoverie s wa s 36-153%

. Fo r TCMX, th e advisory limit s wer e 32-148%

. Th e recoverie s o f bot hsurrogate s wer e withi n th e advisory limit s for al l sample s analyze d withou t significan t

dilutions

. Surrogat e recoverie s wer e dilute dout , an dtherefor e no t evaluated , for

th e followin g sample s that

require ddilution s at

th e instrument : 3018.2(X) 3 (twenty-fol ddilution) , 9B00O.200 3 (ten-fol ddilution) , an d9C075.200 3 (ten-fol ddilution)

. Overall , th e surrogat e recovery dat a indicat e that

th e analytica l instrumentatio n wa s functionin g properly

.

3.3.1. 4 EQUIPMEN T AN D FIEL D BLANK S On e equipmen t

blank , EB-100.03 , wa s collecte dan danalyze di n associatio n withsedimen t samplin g activitie s t o measur e th e effectivenes s of decontaminatio n procedure s i n th e remova l o f targe t compounds

. Distille dwate r wa s poure dint o adecontaminate dstainles s stee l bow l an dspoo n that wer e
use di n th e homogenizatio n o f th e sedimen t

samples

. Th e distille dwate r wa s poure dfro mth e bowl s int o sampl e containers

. Ther e wer e n o PCB s detecte di n th e equipmen t blan k indicatin g tha t

decontaminatio n procedure s wer e effectiv e i n th e removal o f

potentia l contamination

.
On e fieldblan k

(FB

. 100.03 ) wa s collecte dan danalyze dt o determin e PC B concentration s in th e sourc e wate r use dfor decontaminatio n of

th e sedimen t

samplin g equipment

. Dat afromth e fieldblan k analysi s
wer e use dt o examin e th e potentia l for contaminatio n o f

th e samplin g equipment , an dultimatel y o f th e sedimen t samples , fro mth e sourc e water

. Th e sourc e wate r use da s afinal rins e t o decontaminat e th e sedimen t samplin g equipmen t

wa s commerciall y purchase ddistille dwater

. N o PCB s wer e detecte di n

WOODARD&CURRA N (211749,01 ) Pag e 1 6 12/10/200 3 DRAF T SE D RP T 200 3DRAF T

th e fieldblan k

indicatin g that

th e sourc e wate r

wa s no t likel y apotentia l contaminatio n sourc e for sedimen t samples

.

3.3.1. 5 CALIBRATIO N RESULT S Calibratio n result s were reviewe dt o determin e i f sampl e result s were accuratel y quantified

. Tw o type s
o f calibration s wer e include di n th e review ; initia l calibration s an dcontinuin g calibrations

. Initia l calibration s wer e evaluate dbase do n instrumen t respons e t o differen t

concentration s o f

standard s
o f th e targe t

Arochlors

. Instrumen t

response s wer e plotte dagains t th e concentration s o f

seve n standard s t o obtai n acalibratio n curv e agains t whic hal l sampl e concentration s wer e obtained

. Th e concentration s
o f th e standard s use dt o creat e th e calibratio n curve s for Arochlo r 101 6 an dArochlo r

126 0 wer e 0.025 , 0.05 , 0.10 , 0.25 , 0.50 , 1.0 , an d2. 5 ppm . Th e correlatio n coefficien t provide dameasur e o f

th e linearity
o f th e calibratio n curve . Th e initia l calibratio n requkemen t specifie di n th e SCRA QAP P wa s for th e correlatio n coefficien t

t o b e 0.9 9 o r

better

. Initia l calibration s for

Arochlo r 101 6 an dArochlo r

126 0 wer e create do n Augus t 28 , 2(X) 3 for

th e A an d B channel s o f

th e ga s chromatograph

. Singl e poin t initia l calibration s wer e utilize dfor quantificatio n o f Arochlor s 1221 , 1232 , 1242 , 1248 , an d1254

. Al l singl e poin t initia l calibration s wer e analyze don Augus t 31 , 2003 , for

bot hchannel s o f

th e ga s chromatograph

. Initial calibratio n result s wer e acceptabl e for al l Arochlo r

peak s o n bothchannel s indicatin g that sampl e concentration s wer e accuratel y quantified

. Continuin g calibratio n result s wer e analyze dt o provid e achec k o f th e accurac y of

th e analytica l instrumentation

. Continuin g calibratio n result s wer e assesse db y comparin g reporte dconcentration s agains t tru e concentration s o f

astandard

. Th e SCRA QAP P requiremen t for acceptanc e of

continuin g calibratio n result s wa s apercen t differenc e o f

15 % o r les s betwee n th e reporte dconcentratio n an dth e tru e concentration

. Continuin g calibratio n standard s wer e analyze do n Septembe r 17 , Septembe r

19 , Septembe r

20 , and Septembe r

21 , 2003

. Al l continuin g calibratio n result s associate dwit hth e 200 3 sedimen t

sampl e analyse s wer e withi n contro l limit s indicatin g accurat e sampl e quantificatio n for al l analytes.

.

WOODARD&CURRA N (211749,01 ) Pag e 1 7 12/10/200 3 DRAF T SE D RP T 200 3DRAF T

3.3.1. 6 MATRI X SPIK E SAMPLE S Matri x spike andmatri x spik e duplicat e (MS/MSD ) sample s were use dt o determin e i f matri x interference s affecte dth e recovery o f PC B concentration s i n samples

. Fo r example , certai n type s o f soi l

suc h a s peat

absor b molecule s o f

organi c compound s suc h a s PCB s ver y tightl y suc h that

it i s ver y difficul t t o extrac t

th e organi c compound s int o th e solven t fromth e soil

. Fo r

matri x spik e analyses , know n concentration s of Arochlo r 125 4 wer e adde dt o sedimen t sample s before extractio n an danalysis

. Th e concentration s of

th e Arochlo r

obtaine dfro mth e analyse s wer e divide db y th e know n concentration s t o obtai n percen t

recoveries

. Th e criteri ause di n th e determinatio n o f matri x effect s are obtaine dfro m performanc e dat agenerate dfro mth e analysi s of quality contro l samples

. Fo r Arochlo r

1254 , th e acceptanc e rang e for

matri x spik e recoverie s wa s 52-153%

. Durin g th e 200 3 sediment-samplin g event , matri x spike sample s wer e collecte dat 8007.200 3 an d8002B.2003

. Th e MS/MS D sample s wer e designate dwit

h a.5 2 a s apart

o f th e sampl e identificatio n t o differentiat e the mfro mth e origina l samples

. However , th e laboratory di dno t realiz e that

th e .5 2 designation s indicate dareques t for MS/MS D analyse s an darbitraril y selecte dsample s fo r MS/MS D analyses

. Th e laboratory selecte d 8002A.200 3 an d8019.200 3 for MS/MS D analyses

. MS/MS D recoverie s o f Arochlo r 125 4 wer e withi n th e acceptanc e rang e for

both set s o f

MS/MS D analyses

.



### 3.3.1. 7 LABORATOR Y CONTRO L SAMPLE S Laboratory contro l sample s wer e use dt o determin e th e accurac y of th e analytica l metho duse dt o obtai n sampl e concentrations

. Laboratory contro l sample s consis t o f analyte-fre e soi l t o whic h know n concentration s of

Arochlo r

125 4 wer e added

. Th e reporte dconcentration s wer e divide db y th e know n concentration s t o obtai n percen t recoveries

. Laboratory contro l sampl e recoverie s wer e compare dt o statisticall y derive dacceptanc e limits

. Th e acceptanc e limit s wer e 52-153 % for Arochlo r

125 4 i n th e LC S analysis

.
Al l laboratory contro l sampl e recoverie s wer e complian t indicatin g that

th e analytica l accurac y demonstrate ddurin g sampl e analysi s wa s acceptable

.

3.3.1. 8 FIEL D DUPLICAT E SAMPLE S Duplicat e sample s ar e tw o differen t sample s collecte dfro ma n identica l location

. Th e purpos e o f collectin g duplicat e sample s wa s t o measur e th e precisio n o f th e reporte dPC B concentrations

. Precisio n

WOODARD&CURRA N (211749.01 ) Pag e 1 8 12/10/200 3 DRAF T SED RP T 200 3DRAF T

i s expresse di n term s of relativ e percen t

differenc e (RPD)

. Th e RP D wa s calculate db y takin g th e differenc e betwee n th e sampl e an dit s duplicat e an ddividin g i t b y th e averag e o f

thes e results

. Evaluatio n o f

th e RP D wa s use dt o determin e if ther e wa s variability in sampl e collectio n an danalysi s
an dt o determin e whethe r th e concentration s o f

th e targe t

compound s wer e homogeneousl y distribute d throughou t

th e sampl e matrix

. Duplicat e concentration s wer e considere dt o b e i n agreemen t (compar e well ) if th e RP D betwee n PC B concentration s wa s les s than 50 % (USEPA , 1988)

. Duplicat e sediment/wetlan dsoi l sample s wer e designate dwit ha.5 1 suffi x a s part

of th e sampl e identificatio n t o differentiat e the mfromothe r sedimen t samples

. Duplicat e sample s wer e collecte dat 8006.200 3 an d8021.200 3 durin g th e 200 3 Rigg s Broo k sediment/wetlan dsoil-samplin g event

. Als o evaluate dwer e th e sample s originall y designate d(.5 2 extensions ) for

MS/MS D analyses : 8007.200 3 an d8002B.2003

. Th e RPD s betwee n th e concentration s
o f targe t Arochlor s for

th e duplicate s (.5 1 o r

.5 2 extensions ) an dcorrespondin g sample s wer e belo w 50 % for 8006.2003 , 8021.2003 , 8007.2003 , an d8002B.2003

. Th e duplicat e dat asugges t that a n acceptabl e leve l o f precisio n wa s achieve ddurin g sampl e collectio n an danalysis

.

3.3.1. 9 SAMPL E QUANTIFICATIO N Positiv e concentration s o f Arochlor s wer e confirme db y analysi s o n tw o dissimilar ga s chromatographi c columns

. Result s fro mChanne l A an dChanne l B wer e compare dt o evaluat e th e precisio n betwee n th e tw o columns

. Th e relativ e percen t differenc e (RPD ) betwee n result s wa s calculate dfor eac hpositiv e Arochlo r detection , an dreporte dconcentration s for whic hth e % D betwee n column s wa s greate r than 25 % hav e bee n qualifie da s estimate d(J)

. Base do n %D s greate r than 25% , th e followin g sampl e result s for Arochlo r

124 8 hav e bee n qualifie da s estimate d(J) : 3018.2003 , 8004.2003 , an d8020.2003

. Fo r thes e sample s th e highe r

o f th e tw o result s ha s bee n reporte dan dqualifie d(J)

.

3.3. 2 SUMMAR Y O FQUALIT Y CONTRO L SAMPL E RESULT S A Tie r E Q validatio n revie w wa s complete dfo r al l sediment/wetlan dsoi l sample s collecte dfro mRigg s Broo k i n 2003

. A revie w o f

al l result s an dquality contro l element s indicate dthat th e dat apackag e wa s
on e hundre dpercen t

complet e for

th e sediment/wetlan dsoi l sample s collecte dan dal l associate dquality contro l results

. Al l o f

th e blank s (method , equipment , an dfield) wer e non-detec t for PCB s indicatin g that contaminatio n o f

sample s fro moutsid e source s di dno t likel y occur . Surrogat e compoun drecoverie s
wer e withi n acceptanc e limit s for al l sample s suggestin g that overall , th e analytica l syste mwa s i n

WOODARD&CURRA N (211749,01 ) Pag e 1 9 12/10/200 3 DRAF T SE D RP T 200 3DRAF T

control

. Recoverie s of

laboratory contro l sample s bracketin g th e sedimen t sample s wer e i n contro l for Arochlo r 125 4 indicatin g that

sampl e concentration s wer e accuratel y reported

. Tw o samples , 8002A.200 3 an d8019.2003 , wer e analyze dfor matri x effect s usin g matri x spike s o f Arochlo r 1254

. Matri x spike result s for

bothsample s wer e acceptable

.
Al l initia l calibration s wer e in criteri aindicatin g that satisfactory calibratio n curve s fro mwhic haccurat e sampl e concentration s coul db e obtaine dwer e generated

. Al l continuin g calibratio n result s wer e withi n contro l limit s indicatin g that accurat e quantification s for al l Arochlor s coul db e achieved

. Duplicat e sample s wer e collecte dat 8006.200 3 an d8021.2003

. In addition , duplicat e sampl e result s wer e evaluate dfor

8007.2003/8007.2003.5 2 an d8002B.2003/8002B.2003.52

. Th e result s fo r al l four duplicat e pair s wer e complian t indicatin g that

th e leve l o f

precisio n wa s acceptable

.

3.3. 3 EVALUATIO N O FPARC C PARAMETER S Quality contro l result s obtaine ddurin g th e 200 3 Rigg s Broo k Sediment/Wetlan dSoi l Samplin g even t
wer e als o reviewe dt o determin e i f PARC C objective s wer e met , a s outline di n th e SAP

. Component s
use dt o complet e th e PARC C assessmen t wer e obtaine dfro mth e Tie r H I validatio n review

. PARC C result s are summarize dbelow

.

3.3.3. 1 PRECISIO N Precisio n wa s expresse di n term s o f RP D betwee n sample s an dassociate dduplicates , an dbetwee n M S

an dMS D results

. Th e precisio n requiremen t specifie di n th e SA P for th e RP D betwee n bothpair s o f thes e quality contro l sample s i s 50 % o r less

. Duplicat e sample s were collecte da t 8006.200 3 an d8021.2003

. Acceptabl e RPD s betwee n sampl e an d duplicat e result s wer e reporte dfor bot hset s o f

sampl e duplicate s for

al l Arochlors

. Sample s 8007.2003/8007.2003.5 2 an d8002B.2003/8002B.2003.5 2 wer e als o evaluate da s sampl e duplicates , an d al l RPD s wer e withi n contro l limits

.
Tw o pair s o f

MS/MS D samples , 8002A.200 3 an d8019.2003 , wer e analyze di n associatio n withth e 200 3 Rigg s Broo k

Sediment/Wetlan dSoi l samples

. Th e RPD s betwee n M S an dMS D recoverie s of Arochlo r 125 4 were belo w 50 % fo

r bothpair s o f

samples

.

WOODARD&CURRA N (211749.01 ) Page2 0 12/10/200 3 DRAF T SE D RP T 200 3DRAF T

Base do n th e result s o f matri x spike an dduplicat e analysis , th e level s o f samplin g andanalytica l precisio n ar e acceptable

.

3.3.3. 2 ACCURAC

Y Accurac y i s ameasur e o f agreemen t

betwee n result s obtaine dfro ma n analytica l metho dcompare dwit h know n values

. Accurac y o f th e sediment/wetlan dsoi l concentration s wa s evaluate dthroug harevie w of laboratory contro l sampl e results

. Laboratory contro l sample s are soil s that ar e spike dwit

hknow n concentration s o f Arochlo r 1254

. Th e soil s hav e bee n previousl y analyze dan dar e know n t o b e fre e o f PC B contaminatio n prio r t o additio n o f th e spike

. Th e reporte dconcentration s o f Arochlo r 125 4 wer e divide db y th e know n concentration s t o obtai n percen t

recoveries

. Th e percen t recoverie s o f

th e laboratory contro l sample s wer e compare d agains t th e recovery criteri aspecifie di n th e SAP

. Al l recoverie s wer e in criteri aindicatin g that sampl e concentration s wer e accuratel y quantified

.

3.3.3 3 REPRESENTATTVENES S Representativenes s expresse s th e degre e t o whic hdat aaccuratel y an dprecisel y represen t acharacteristi c
o f th e population , paramete r variation , o r

environmenta l condition

. Representativenes s i s controlle d throug hmeasuremen t

o f precisio n an daccurac y an dcomparin g th e result s versu s projec t objectives

. Method s t o evaluat e precisio n an daccuracy , a s describe dpreviously , hav e indicate dthat th e dat aar e representative

. A consisten t metho do f

sampl e collectio n an dhomogenizatio n ha s assure dthat representativ e sample s wer e collected

. Th e comparability data , describe di n th e las t subsectio n o f

th e PARC C discussion , demonstrat e th e consistenc y o f th e sampl e collectio n method s an dtherefore , als o demonstrat e that

reporte dPC B concentration s ar e representative

.

3,3.3. 4 COMPLETENES S Completenes s i s ameasur e of th e amoun t

of vali ddat aobtaine dfromameasuremen t syste mcompare dt o th e amoun t

expected

. Th e completenes s goal for th e projec t

a s require dby th e QAP P i s 90%

. On e hundre dpercen t

o f th e dat awer e validate dan daccepte dindicatin g that th e dat ase t

i s complet e for sample s collecte ddurin g thi s investigation

.

WOODARD&CURRA N (211749.01 ) Pag e 2 1 12/10/200 3 DRAFT SE D RF T 200 3DRAF T

3.3.3. 5 COMPARABILIT Y Comparability i s aqualitativ e an dquantitativ e assessmen t of ho w different

dat aset s can b e compare dt o
eac hother

. Fo r

th e sediment/wetlan dsoil s collecte da t Rigg s Brook , comparability wa s measure db y analysi s of

th e duplicat e results

. Th e duplicat e result s wer e use dt o asses s th e variability o f PC B concentration s i n th e sediment/wetlan dsoi l samples

. Variability ma y b e du e t o samplin g and/o r analytica l technique s o r

heterogeneity o f

PC B concentration s throughou t th e sampl e matrix

. A s state d above , th e RP D betwee n sampl e an dduplicat e concentration s wa s require dt o b e 50 % o r less

. Th e result s fro manalysi s o f al l pair s of

duplicate s me t

criteri aindicatin g that

th e comparability an d consistenc y of

th e reporte dresult s wa s satisfactory

.

WOODARD&CURRA N (211749,01 ) Pag e 2 2 12/10/200 3 DRAFT SE D RP T 200 3

# SECTIO N 4DRAF T

4

. SUMMAR Y O F200 3 SEDIMENT/WETLAN D SOI LANALYTICA L RESULT S
Thi s sectio n compare s 200 3 sedimen t analytica l dat at o th e targe t leve l o f 5 mg/kg tota l PCBs , an dt o PC B concentration s reporte dfro mth e 199 6 throug h200 2 sediment/wetlan dsoi l sampl e collectio n events

.
4. 1 COMPARISO N O F200 3 SEDIMENT/WETLAN D SOI L ANALYTICA LRESULT S T O TARGE T LEVE L A tota l o f

3 6 sediment/wetlan dsoi l sample s wer e collecte ddurin g 2(X) 3 samplin g activities

. Concentration s of

tota l PCB s for

al l 3 6 sedimen t

sample s wer e belo w th e targe t leve l of 5 mg/kg

.
4. 2 COMPARISO N O F200 3 SEDIMENT/WETLAN D SOI L ANALYTICA L RESULT S T O PREVIOU S

SEDIMENT/WETLAN D SOI LDAT A Tabl e 4 provide s acompariso n o f analytica l result s of

th e 2003-sediment/wetlan dsoi l sample s t o analytica l result s obtaine dfro msample s collecte dfrom199 6 throug h200 2 a t th e same locations

. Sampl e location s identifie di n th e 198 7 E.C

. Jordan RI wer e slightl y differen t than location s outline din th e SAP , therefore th e dat aobtaine dfro mthi s investigatio n wer e no t directl y compare dt o th e 200 3 data

. Analytica l result s fro mth e 198 7 RI ar e locate din Appendi x B

.

4. 3 MANN-KENDAL L STATISTICA L TREN D TES T A s require din th e SAP , aMann-Kendal l statistica l tren danalysi s wa s complete dt o determin e if tota l PC B concentration s wer e increasin g o r decreasin g a

t sampl e location s witha t leas t four year s o f data

. Sufficient dat awer e availabl e t o complet e thi s tes t a t 2 6 samplin g locations

. Dat awa s collecte dfor thes e location s fro m199 6 throug h2002

. Th e Monito r 5 program , whic hha s statistica l software includin g th e Mann-Kendal l test , wa s use dt o complet e th e analysis

. Th e result s fro mth e Mann-Kendal l tes t ar e include di n Appendi x C

. Th e tes t wa s no t don e for th e 1 0 supplementa l 900 0 serie s samplin g locations

.
Th e tes t result s indicate , wit

ha95 % confidenc e interval , that ther e ar e n o statisticall y significan t trend s t o PC B concentration s over th e pas t seve n years . Several sampl e location s includin g 8001 , 8002A , 8002B , 800 5 an d801 5 hav e consistentl y hadnon-detec t result s for

al l sampl e years . Fo r

many location s
suc ha s 8003 , 8010 , 8016 , 8017 , 8021 , 8022 , 802 3 an d803 9 trac e concentrafion s o f targe t Arochlor s hav e bee n detecte di

n onl y on e year .

WOOD/iiRD & CURRA N (211749.01 ) Pag e 2 3 12/10/200 3 DRAF T SE D RP T 200 3

### DRAF T



## 3

4> f 

## 7/1S '



## . 1 TABL E 4 : COMPARISO N O F

### 200 3 SEDIMENT/WETLAN D SOI LMONITORIN GRESULT S T O HISTORICA LRESULT S fSampl ^

800 1 800 2 8002 A 8002 B 800 3 800 4 301 8 800 5 800 6 800 7 800 8 800 9 801 0 801 1 801 2 801 3 803 9 801 4 801 5 801 6 801 7 801 8 801 9 802 0 802 1 802 2 802 3 'StTol21?©B ^

<0.03 2 N S <0.03 9 <0.037/<0.03 5 <0.03 1 <0,02 4 J 4. 4 J <0.02 7 0.95/0.9 3 0.77/0.7 3 0.035 0.2 0 <0.02 4 <0.02 9 0.1 1 <0.02 3 0.08 8 0.1 7 <0,02 4 0.03 1 <0.03 4 <0.04 8 <0.04 4 <0.03 2 J <0.039/<0.03 9 <0.03 8 <0.0 3 <0.02 8 J

N S <0.02 6 J <0.02 5 J <0.02 7 J 

# 5 50.024 ^ 5.6 3 J ^ ^070 2 J 2. 9 J 0.56 2 0.03 4 J 0.304/0.29 3 <0.0 2 <0.02 5 0.17 8 <0.01 9 <0.02 4 0.20 6 J <0.0 2 <0.02 7 J <0.0 3 0. 2 J 0.39 4 J 0.07 7 J <0.02 9 0.03 9 J/0.04 2 J <0.02 6 <0,02 9

N S <0,02 8 <0.0 3 <0,02 4 <0,022 > C.6.1 J J <0I52 2 0.8 1 J/0.6 6 J 0.37 8 J <0.02 7 0.1 3 J <0.02 1 <0.02 5 <0.02 4 <0.01 9 <0.02 4 0.23 8 J <0.02 1 <0.03 2 <0.03 1 0. 3 J 0.4 9 J <0.02 8 <0.03 2 <0.02 9 <0.025/<0.02 5 @^42000' S

ag-(mg/kg)r

- <0.031/<0.03 1 N S < 0.02 2 < 0.035 < 0.02 9 < 0.02 6 4. 6 < 0.02 4 ^10 4 J 0.9 8 < 0.02 7 1. 1 < 0.02 4 < 0.02 6 0.14/0.16 8 < 0.02 2 < 0.033 1. 5 < 0.02 5 < 0.04 1 < 0.03 1 < 0.02 3 < 0.03 0 <0.028/<0.0 5 < 0.02 6 < 0.02 6 < 0.02 5 <0.0 7

N S < 0.06 3 < 0.06 3 < 0.06 6 < 0,04 2 3. 9 < 0.04 5 C 14-0 ^ ^ 0.1 4 0.095J/0.146 J 0.15 4 < 0.047 0.053 < 0.05 9 0.05 2 J < 0.06 1 <0.058/<0.05 2 < 0.04 5 < 0.05 8 < 0.05 7 < 0.054 < 0.05 0 < 0.044 < 0.05 7 < 0.055 < 0.05 6 f^998j» S 

## Jfitai^B^ " gcr-'>(mg^g) g < 0.09 2 J N S < 0.07 9 < 0.05 0 < 0.06 3 N S C 6 4 ^ ^>::^:Q40^ ( ^ 1 5 9/16. 8 " Y

< 0.040 0.34 0 < 0.04 0 0,053 0.53 0 N S 0.02 9 0.43 0 < 0.04 6 0.07 1 0.67 0 < 0.04 3 0.27 6 <0.053/<0.05 3 < 0.06 3 < 0.06 3 < 0.07 9 <.07

3 N S <.04 6 <.06 3 

### <-m
f \2 9 ^=NS = <.046/<.04 6 3. 2 2. 5 <.05 6 .9 3 J <.04 3 .03 9 J .3 4 J 

### ^^s^ILX

- < 0.05 9 .03 9 J <.09 2 <.053 <.05 6 <.04 3 .24 7 J .23 4 .103J/.0 6 <.06 3 <.05 9 •^%199S,f-„ ^

Tolali-PjSBs ^ img/kg/ @ <.06 6 <.06 3 N S N S ^3-1 ' 2, 8 J 4. 1 J <.05 3 .7 7 J .2 4 J .04 7 J .27 9 J .1 1 J .04 4 J .13 2 J .4 7 J N S .043J/.093 J <,04 6 <,05 6 <,05 3 <.043 .02 9 J .05 9 J <,06 3 <,05 9 ,0 5 J 

## X^ ^ *' '

WOODARD & CURRA N (211749,01 ) DRAFT SED RP T 200 3 Pag e 2 4 12/10/200 3

### DRAFT

-Sample v

9A92 5 9B92 5 9B00 0 9C92 5 9C00 0 9C02 5 9C05 0 9C07 5 9C10 0 9C12 5 •^2003v^-f? «

%oiarPC:B'sn " y (m^/feg)X' ' 0.6 7 0.2 1 2. 1 0.7 7 0.6 0 0.4 9 0.3 5 0.7 8 1. 1 1. 0 

### mtaitGB %

0.6 5 J 0.13 5 J 0, 9 2.3 2 1.9 1 0.7 6 J 1.4 4 J 1.9 4 J 1.13 J 0.7 5 J 7',:200ir:-,^

.

A^Total-PCBs-^ *
0.08 6 J 0.27 9 J 0.6 5 J 0.6 8 J 0.3 2 J 0.03 5 0.3 9 J 2.3 2 J 0.4 7 J 0.5 1 J ?ii<Tt2'ooo

^ "r- ,

N S N S 12. 6 N S 2.0 5 1.9 9 7. 3 11. 2 3. 8 5. 5 S;^otll¥fB|| |

N S N S N S N S N S N S N S N S N S N S ''tf'=-§i998xr-i: ^ ;.-^fot"ai;iJGBs"V

N S N S N S N S N S N S N S N S N S N S N S

N S N S N S N S N S N S N S N S N S f <^f99| * ''^ ' J-..To*tii*PCB

f :4mg/ki ) ' c N S N S N S N S N S N S N S N S N S N S
NOTES : Secon dconcentratio n liste di s concentratio n o f duplicat e sample , J Qualifier

indicates th e sampl e concentratio n i s estimated

.

WOODAR D & CURRA N (211749,01 ) DRAF T SE D RP T 200 3 Pag e 2 5 12/10/200 3

# SECTIO N 5DRAF T

5

. CONCLUSION S AN D RECOMMENDATION S 

# y^^^" ^

A summary o f

th e event s an dresult s associate dwit hth e 200 3 Rigg s Broo k Sediment/Wetlan dSoi l Samplin g event s ar e a s follows :
Du e t o belo w norma l rainfal l for mos t o f th e summer

o f 2003 , th e wate r

leve l i n Rigg s Broo k

wa s ver y low

. A s i n 2002 , man y sampl e location s that were normall y submerge dwer e dr y i n 2003

. Concentration s o f

tota l PCB s wer e belo w th e targe t leve l o f 5 mg/k g at

al l sediment/wetlan dsoi l sampl e locations

. Seve n sampl e location s fro mth e supplementa l samplin g gri dadde di n 200 0 wer e agai n sample di n 2003

. Thre e location s (9A925 , 9B92 5 an d9C925 ) adde din 200 1 wer e agai n sample di n 2003

. Thes e sample s
wer e analyze dt o determin e if ther e wer e trend s o f

PC B concentration s ove r tim e sinc e 200 0 an d2001

. Concentration s o f

tota l PCB s fro mal l te n o f thes e location s wer e belo w th e targe t leve l o f 5 mg/k g an d

wer e similar

t o concentration s reporte di n previou s years , an dd o no t appear t o sho w any trends

. Th e Mann-Kendal l statistica l tren danalysi s indicate dthat ther e wer e n o statisticall y significan t trend s i n PC B concentration s ove r

th e pas t seve n years . Th e quality contro l result s fro mdat avalidatio n procedure s indicat e that th e dat aar e o f

goo dquality an d acceptabl e for

thei r en dus e o f

continue dmonitorin g o r PC B concentration s i n Rigg s Broo k near th e O'Conno r Superfun dSite

.
A s specifie di n th e SAP , annual sediment/wetlan dsoi l samplin g wil l continu e at Rigg s Broo k

i n 200 4 t o monito r concentration s o f

PCB s a t th e sampl e locations

. Sampl e collectio n wil l continu e t o b e conducte d i n th e fal l whe n wate r

level s ar e low

.

WOODARD&CURRA N (211749,01 ) Pag e 2 6 12/10/200 3 DRAFT SE D RP T 200 3LIS T O FACRONYM S AN D ABBREVIATION S DRAF T

bg s CM P
DC B DGP S DQ O
ES D
KA S mg/k g MS/MS D O U
PARC C PCB s pp m QAP P
RO D RP D R I
SA P SD G SCRA
TCM X
USEP A
W& C belo w groun dsurfac e

Centra l Main e Powe r decachlorobipheny l digita l geographi c positionin g syste m Dat aQuality Objectiv e Explanatio n o f

Significan t

Differenc e Katahdi n Analytica l Service s milligram s pe r

kilogram matri x spike/matri x spik e duplicat e operationa l uni t Precision , Accuracy , Representativeness , Completenes s an dComparability Polychlorinate dbiphenyl s part s pe r millio n Quality Assuranc e Projec t Plan Recor dof Decisio n Relativ e Percen t

Differenc e Remedia l Investigatio n Samplin g an dAnalysi s Plan sampl e delivery grou p Sourc e Contro l Remedia l Actio n tetrachlorometaxylen e Unite dState s Environmenta l Protectio n Agenc y Woodar d& Curran

WOODARD & CURRA N (211749,01 ) DRAFT SED RP T 200 3 ACRONYM S AND REFERENCE S 12/10/200 3DRAF T

LIS T O FREFERENCE S
Jorda n Co. , E.C

. 1987 ; "Draf t Remedia l Investigatio n Report F.J

. O'Conno r

Site , Volum e I Technica l Report" ; Decembe r

1987

. U.S

. Environmenta l Protectio n Agency , 1988 ; "Regio n I Functiona l Guideline s for Evaluatin g Organi c Analyses" ; February 1 , 1988 , Modifie dNovembe r 1 , 1988

. U.S

. Environmenta l Protectio n Agency , 1989 ; "Recor do f Decisio n Summary , O'Conno r Compan y Superfun dSite, " Augusta , Maine ; Septembe r 27 , 1989

. Woodar d& Curran , 1996 ; "Sourc e Contro l Remedial AcfiohQuaUt y Assuranc e Projec t

Plan, " 10 0 Percen t Remedia l Design , O'Conno r Compan y Superfun dSite , Augusta , Maine ; Jul y 1996

. Woodar d& Curran , 1997 ; "Fina l Rigg s Broo k Sedimen t

an dBiot aSamplin g an dAnalysi s Plan, " O'Conno r Compan y Superfun dSite , Augusta , Maine ; Octobe r 1997

.

WOODARD&CURRA N (211749,01 ) ACRONYM S AND REFERENCE S 12/10/200 3 DRAF T SE D RP T 200 3

# APPENDIX A

### DRAF T

APPENDI X A : SEDIMENT/WETLAND SOI LSAMPLIN G SURVE Y DAT A

WOODARD&CURRA N (2 1 1749,01 ) APPENDICE S 12/02/200 3 DRAF T SE D RP

T 200 3

### DRAF T

RIGG S BROO K

SEDIMENT SAMPLING LOCATION S O'CONNO RCOMPAN

Y SUPERFUN

D SIT E AUGUSTA , MAIN

E

SAMPL E # 800 1 800 2 8002 A 8002 B 800 3 800 4 800 5 800 6 800 7 800 8 800 9 801 0 801 1 801 2 801 3 801 4 801 5 801 6 801 7 801 8 801 9 802 0 802 1 802 2 802 3 803 9 9A92 5 9B00 0 9B92 5 9C00 0 9C02 5 9C05 0 9C07 5 9C10 0 9C12 5 9C92 5 NORTHIN G 53538 6 53555 7 53530 0 53447 2 53560 7 53570 7 53570 7 53580 7 53590 7 53580 7 53590 7 53580 7 53590 7 53600 7 53590 7 53600 7 53590 7 53600 7 53610 7 53641 6 537693.8 1 53830 2 53862 6 53942 8 54100 4 535919. 5 53584 2 53584 2 53586 0 53586 0 53584 2 53582 5 53580 7 53578 9 53577 2 53587 8 EASTIN G 306494 8 306501 6 306486 2 306379 9 306511 8 306511 8 306521 8 306521 8 306521 8 306531 8 306531 8 306541 8 306541 8 306541 8 306551 8 306551 8 306561 8 306561 8 306561 8 306561 2 3065949.8 8 306621 2 306616 4 306675 6 306765 9 306551 8 306530 6 306527 1 306528 9 306525 3 306523 6 306521 8 306520 0 306518 3 306516 5 306527 1
Al l coordinate s i

n NAD-8 3 Main e Wes t

WOODARD & CURRAN (211749,01 ) DRAFT SED RI T 200 3 APPENDICE S 12/02/200 3

# APPENDIX B

### DRAF T

APPENDI X B : 198 7 REMEDIA L INVESTIGATIO N RIGG S BROO K SEDIMEN T AND BIOT A DAT A

WOODARD&CURRA N (2 1 1749,01 ) APPENDICE S 12/02/200 3 DRAF T SE D RP T 200 3DRAF T

198 7 RIGG S BROO K

SEDIMEN T SAMPL E RESULT S O'CONNO RCOMPAN Y SUPERFUN D SIT E

AUGUSTA , MAIN E

SAMPL E I D SED- 1 SED- 2 SED-7 B SED- 8 SED- 9 SED-1 0 SED-1 1 SED-1 2 SED-1 3 SED-1 4 SED-1 5 SED- A SED- B 

### 1 SED- C TOTALPC B CONCENTRATIO N (mg/kg )

<0.1 2 3. 4 4. 1 <0.1 0 <0.1 0 4. 0 4. 5 1.7 <1. 0 <0.2 5 <0.1 0 4. 2 <1. 0 1 SAMPL E LOCATIO N |

Upstreamo f

O'Conno r

Sit e 1 Adjacent t o O'Conno r

Sit e l j Adjacent t o O'Conno r

Sit e Adjacent t o O'Conno r

Sit e Adjacent t o O'Conno r

Sit e Adjacent to O'Conno r

Sit e Adjacent t o O'Conno r

Sit e Downstreamof

O'Conno r

Sit e Downstreamof

O'Conno r

Sit e Downstreamof

O'Conno r

Sit e Downstreamo f

O'Conno r

Sit e Adjacent to O'Conno r

Sit e Adjacent t o O'Conno r

Sit e Adjacent t o O'Conno r

Sit e

WOODAR D & CURRA N (2 1 1749,01 ) DRAF T SE D Rin-200 3 APPENDICE S 12/02/200 3

# I f 1 I I I I < 3 0 09 \ CZ A

C o

i O e n

### ''^ i < - j

r \ 

## ^yo ^ \V5 ^ f l 

## <i

. C J ..' •>:-^> :

^^v-

- C-1 6 (SUXFBOQ ) UPLAN D ,^. 1

, ^ MARSH :

COVE R C d 0.1 1 OJ l 

# 4 p/d'CONNEF? " 'SIT E , '

I

BACKGROUN

D (SE E LOCATIO N INSERT )

C-13fraOG ) PC8T 23. 5 O K(TADPCXJES

) PC8 T 22- 1 C-1 5 (TADPOLES)

aBACKGROUN O £.2 1 PC8 i ^ ^
^ ^ ! ^ ^ isnac t FRATt

f C J r0.1 S 2 3 1. 7 

# ii T B O 0.1 5 

# ss ° S 3 121 0 4 « NOTES : 1

. AL L VALUE S W pp m (mg/kg ) 2

. C>tK«CAlJ S LISTE D A T BW=KGft3t*«.SW10r ^ ONL Y THOS E DETECTE D ABOVf : METHO D DETECTIO N LMTS

. 3

. CHEMICAL S LISTE D A T OrHE R ST.»T10N S l^•CUUO e OfC Y THOS E DETECTE D ABOV E BACKGROUN D STATIO N VALUES

.

^ 

## G
J 

# C ^

' '^^• ^ - C I S (8ULUCAOS ) PC8 T 0.0 3 

## f C.1 9 (PUMPK»eeEOS ) 1 PC8 T 0.0 4 C-2 0 (GOLDG N SHNERS ) 1 PC8 T 0.0 2 C.2 1 (TAtVHXES ) PCB T «.1 S METAL S - SE E BELOW

. | C.2 2 (BULLHEADS ) METAL S - SEEBE U 3W

. C-2 3 (GOLDE N SHNERS ) I METALS

C-2 1 A l 37 0 B a 4. 0 B < 0.01 S C » B5 0 C d H O C o 0.2 0 O 1. 1 C u 2. 0 F « 42 0 H g 0.02 S K126 0 M o 20 0 M y1 0 N M 139 0 H 0.7 3 P b 0.7 9 V OJ5

5 Z n 1 1 BE E BELDW

. 1

C-2 2 24 0 2. 4 N O ispo o 0.1 2 O. M 0.9 0 33 0 0.07 2 252 0 62 0 1 3 13O 0 0.4 2 03 8 0.5 1 2 « C-2 3 6 2 2 5 f", ^ I3JO 0 N O S O 0.7 0 I J 7 6 0.07 8 2U 0 52 0 9. 9 66 0 <0.J 5 OJI 2 <0.1 8 » S 

### Q


## LEGEN D
J^'-i ^ MARS H •^S^P' ' BRUS H C 2 ? TREE

S

==== = = = DIR T ROA

D FENC E LIN E :PAVE D ROA

D
r ~ ^ STRUCTUR E
^-^

—STREA M •-',-—'

- POWE R LIN E ) ( CULVER T

• BIOT ASAMPLIN G LOCATIO N N O NO N DETECT INSIGNIFICAN T I CONCENTRATIO N « BACKGROUN D STATIONS )
rii/PRor s COMPOSIT E SAMPL E C-13(FROG ) I D NUMBE R AN D

SAMPL E TYP E 

## • 0

x . — 

## ? t

( X (BUJLHEADS ) POS T Oi 3 C-9 (PUMPKXSEEDS) PCS T 0.7

4 C-1 0 fdH.L>gADS l C u 2. 1 &2 3 (B)JUL>eADS ) pcs r os a C-2f l (F1>*T(HS££DS 1 PC8 T O M C-7 7 nAOPOLES ) PCS T 0.4

4



## FIGUR E 8- 1 BIOT ASAMPLIN G STATIO N LOCATION S AM D SAMPLIN G RESULT S SUMMAR Y



## . ECJC«DANCO

.

# APPENDI X G

### DRAF T

APPENDI X C : MAN N KENDAL L TREN D ANALYSI S SEDIMEN T SAMPL E RESULT S 199 6 - 200 3

WOODARD&CURRA N (2 1 1749,01 ) APPENDICE S 12/02/200 3 DRAFT SED RP T 200 3

### Pag e 1 of 3



## Mann-Kendal l Tren dTes t Reoo i Company :

Site : Program : Permit : Minimu m Size : Reporte dby : Repor t Options : rt

CENTRA LMAIN E Dat aGroup : POWE R COMPAN Y O'CONNO R COMPAN Y SITE Rigg s 3 jmood y b y samplin g poin t Dat e Range :

Non-detects : Duplicates : Confidenc e Level : Rang e of Censoring : Repor t printed : Non e

Al l Cohen' s metho d Mean 0.9 5 0%-100 % 12/01/200 3 2:53:05P M Monito r 5
Paramete r

UnitSiz e %ND s S Valu e Tabula r Statisticall y Directio n Valu e Significan t

Tren d Unclassifie d 301 8 Polychlorinate dBiphenyl s PC B pp m7 0.0 % 3 0.38 6 N o 800 1 Polychlorinate dBiphenyl s PC B pp m8 100.0 % 0 0.54 8 N o 8002 A Polychlorinate dBiphenyl s PC B pp m7 100.0 % 0 0.5 7 N o 8002 B Polychlorinate dBiphenyl s PC B pp m7 100.0 % 0 0.5 7 N o 800 3 Polychlorinate dBiphenyl s PC B pp m8 87.5 % - 7 0.236 5 N o 800 4 Polychlorinate dBiphenyl s PC B pp m7 71.4 % - 5 0.28 1 N o 800 5 Polychlorinate dBiphenyl s PC B pp m8 100.0 % 0 0.54 8 N o 800 6 Polychlorinate dBiphenyl s

file://C:\Monitor5\bin\mrwwwmr.htm12/01/200 3

### Pag e 2 of 3



## PC B pp m8 0.0 % - 4 0.3 6 N o 800 7 Polychlorinate dBiphenyl s PC B pp m8 0.0 % - 2 0.45 2 N o 800 8 Polychlorinate dBiphenyl s PC B pp m8 50.0 % 2 0.45 2 N o 800 9 Polychlorinate dBiphenyl s PC B pp m8 0.0 % - 6 0.27 4 N o 801 0 Polychlorinate dBiphenyl s PC B pp m8 87.5 % - 7 0.236 5 N o 801 1 Polychlorinate dBiphenyl s PC B pp m8 62.5 % -1 4 0.05 4 N o 801 2 Polychlorinate dBiphenyl s PC B pp m8 25.0 % - 5 0.31 7 N o 801 3 Polychlorinate dBiphenyl s PC B pp m7 57.1 % - 7 0.19 1 N o 801 4 Polychlorinate dBiphenyl s PC B pp m8 12.5 % 2 0.45 2 N o 801 5 Polychlorinate dBiphenyl s PC B pp m8 100.0 % 0 0.54 8 N o 801 6 Polychlorinate dBiphenyl s PC B pp m8 75.0 % 3 0.40 6 N o 801 7 Polychlorinate dBiphenyl s PC B pp m8 87.5 % - 3 0.40 6 N o 801 8 Polychlorinate dBiphenyl s PC B pp m8 75.0 % 7 0.236 5 N o 801 9 Polychlorinate dBiphenyl s PC B pp m8 37.5 % 1 0. 5 N o 802 0 Polychlorinate dBiphenyl s PC B pp m8 62.5 % - 6 0.27 4 N o 802 1

f l le :// C :\Monitor5\bin\mrwwwmr.htm12/01/200 3

### Pag e 3 of 3



## Polychlorinate dBiphenyl s PC B pp m8 87.5 % - 5 0.31 7 N o 802 2 Polychlorinate dBiphenyl s PC B pp m8 87.5 % 5 0.31 7 N o 802 3 Polychlorinate dBiphenyl s PC B pp m8 87.5 % - 7 0.236 5 N o 803 9 Polychlorinate dBiphenyl s PC B pp m7 71.4 % 7

. 0.19 1 N o
En dof repor t

Monito r 5 Dov e Technologie s , In c

file://C:\Monitor5\bin\mrwwwmr.htm12/01/200 3

### Page l o f 8



## Resul t Repor t Company:CENTRA LMAIN E POWE RDat a

COMPAN Y Group : Non e Site : O'CONNO RCOMPAN Y SIT E Dat e Range : Al l Program : Rigg s Repor t 12/02/200 3 8:49:00AM printed : Repor t b y samplin g poin t Options : Paramete r (Unit )

Unclassifie d 301 8 Polychlorinate dBiph PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 1 Polychlorinate dBiph PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 8002 A Dat e

lenyl s 

## 09/06/200 0 09/06/200 0 09/06/200 0 09/06/200 0 10/10/200 1 09/05/200 2 09/11/200 3 enyl s 10/23/199 6 10/10/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 09/07/200 0

09/07/200 0 09/07/200 0 09/07/200 0 10/10/200 1 09/05/200 2 09/11/200 3

file://C:\Monitor5\bin\mrwwwmr.htm 

## Permit : Reporte dby : jmood y

Sampl e I D

301 8 301 8 301 8 301 8 3018-200 1 3018.200200000000 2 3018-200 3

8001 , 10/23/199 6 8001 , 10/10/199 7 8001,09/23/199 8 8001,09/15/199 9 800 1 8001-200 1 8001.200200000000 2 8001-200 3

8002 A 8002 A 8002 A 8002 A 8002-200 1 8002A.200 2 8002A-200 3 Monito r 5

Resul t ] Valu e

4.10 0 4.60 0 3.90 0 6.40 0 6.10 0 5.63 0 4.40 0

<0.06 6 <0.07 3 <0.09 2 <0.07 0 <0.03 1 <0.02 9 <0.02 8 <0.03 2

<0.02 2 <0.06 3 <0.07 9 <0.04 6 <0.02 8 <0.02 6 <0.03 9 Detectio n

Limi t

0.04 6 0.02 6 0.04 5 0.04 0 0.02 2 0.02 0 0.00 0

0.06 6 0.07 3 0.09 2 0.07 0 0.03 1 0.02 9 0.02 8 0.03 2

0.02 2 0.06 3 0.07 9 0.04 6 0.02 8 0.02 6 0.03 9 Cod e

J J

U, J

U, J

12/02/200 3

### Pag e 2 o f 8



## 8002 B Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 3 09/07/200 0

09/07/200 0 09/07/200 0 09/07/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (jppm

) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 4 Polychlorinate dBip l PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 5 10/23/199 6

10/10/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/05/200 2 09/11/200 3 lenyl s 

## 09/06/200 0 09/06/200 0 09/06/200 0 09/06/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 6 10/23/199 6

10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 10/23/199 6

10/09/199 7 09/23/199 8 09/15/199 9 8002 B

8002 B 8002 B 8002 B 8002b-200 1 8002B.200 2 8002B-200 3

8003 , 10/23/199 6 8003, 10/10/199 7 8003,09/23/199 8 8003,09/15/199 9 800 3 8003-200 1 8003.200200000000 2 8003-200 3

800 4 800 4 800 4 800 4 8004-200 1 8004.200200000000 2 8004-200 3

8005 , 10/23/199 6 8005 , 10/09/199 7 8005,09/23/199 8 8005,09/15/199 9 800 5 8005-200 1 8005.200200000000 2 8005-200 3

8006 , 10/23/199 6 8006 , 10/09/199 7 8006,09/23/199 8 8006,09/15/199 9 <0.03 5

<0.06 3 <0.05 0 <0.07 9 <0.03 0 <0.02 5 <0.03 7

0.09 7 <0.05 0 <0.06 3 <0.06 6 <0.02 9 <0.02 4 <0.02 7 <0.03 1

2.80 0 <0.02 6 <0.04 2 29.00 0 <0.02 2 <0.02 0 <0.02 4

<0.05 3 <0.04 6 <0.04 0 <0.04 5 <0.02 4 <0.02 2 <0.02 0 <0.02 7

0.77 0 3.20 0 16.40 0 14.00 0 0.03 5 0.06 3 0.05 0 0.07-9 0.03 0 0.02 5 U, J 0.03 7

0.06 5 J 0.05 0 0.06 3 0.06 6 0.02 9 0.02 4 0.02 7 U, J 0.03 1

0.05 3 0.02 6 0.04 2 0.07 7 0.02 2 0.02 0 U, J 0.02 4 J

0.05 3 0.04 6 0.04 0 0.04 5 0.02 4 0.02 2 0.02 0 U, J 0.02 7

0.05 6 0.06 1 0.04 0 0.07 2

### Pag e 3 o f 8



## PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 7 Polychlorinate dBip t PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 8 09/05/200 0

10/10/200 1 09/05/200 2 09/11/200 3 lenyl s 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 800 9 10/23/199 6

10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/05/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 0 10/23/199 6

10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm )
file://C:\Monitor5\bin\m

] 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3

rwwwmr.ht m 800 6

8006-200 1 8006.200200000000 2 8006-200 3

8007 , 10/23/199 6 8007 , 10/09/199 7 8007,09/23/199 8 8007,09/15/199 9 800 7 8007-200 1 8007.200200000000 2 8007-200 3

8008 , 10/23/199 6 8008 , 10/09/199 7 8008,09/23/199 8 8008,09/15/199 9 800 8 8008-200 1 8008.200200000000 2 8008-200 3

8009 , 10/23/199 6 8009 , 10/09/199 7 8009,09/23/199 8 8009,09/15/199 9 800 9 8009-200 1 8009.200200000000 2 8009-200 3

8010 , 10/23/199 6 8010 , 10/09/199 7 8010,09/23/199 8 8010,09/15/199 9 801 0 8010-200 1 8010.200200000000 2 8010-200 3 10.40 0

0.81 0 2.90 0 0.95 0

0.24 0 2.50 0 1.20 0 0.14 0 0.98 0 0.37 8 0.56 2 0.77 0

0.04 7 <0.05 6 <0.04 0 0.14 6 <0.02 7 <0.02 7 0.03 4 0.03 5

0.27 9 0.93 0 0.34 0 0.15 4 1.10 0 0.13 0 0.30 4 0.20 0

0.11 0 <0.04 3 <0.04 0 <0.04 7 <0.02 4 <0.02 1 <0.02 0 <0.02 4 0.20 0

0.02 5 J 0.02 6 J 0.00 0

0.06 4 J 0.05 1 0.04 7 0.04 5 0.20 0 0.02 2 J 0.02 0 0.00 0

0.04 0 J 0.05 6 0.04 0 0.07 9 0.02 7 0.02 7 0.03 1 J 0.00 0

0.07 0 J 0.06 8 J 0.07 0 0.06 2 0.20 0 0.02 6 J 0.02 5 0.00 0

0.05 2 J 0.04 3 0.04 0 0.04 7 0.02 4 0.02 1 0.02 0 U 0.02 4

12/02/200 3

### Pag e 4 o f 8



## 801 1 Polychlorinate dBip l PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 2 lenyl s

10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 8011,10/23/199 6

8011,10/09/199 7 8011,09/23/199 8 8011,09/15/199 9 801 1 8011-200 1 09/04/200 2 8011.200200000000 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 3 10/23/199 6

10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 8011-200 3

8012 , 10/23/199 6 8012 , 10/09/199 7 8012,09/23/199 8 8012,09/15/199 9 801 2 8012-200 1 09/04/200 2 8012.200200000000 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 4 09/05/200 0

09/05/200 0 09/05/200 0 09/05/200 0 10/10/200 1 8012-200 3

801 3 801 3 801 3 801 3 8013-200 1 09/04/200 2 8013.200200000000 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 5 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) 10/23/199 6 10/09/199 7 09/23/199 8
fiIe://C:\Monitor5\bin\mrwwwmr.ht m 8013-200 3

8014 , 10/23/199 6 8014 , 10/09/199 7 8014,09/23/199 8 8014,09/15/199 9 801 4 8014-200 1 0.04 4

0.03 9 0.05 3 <0.05 1 <0.02 6 <0.02 5 <0.02 5 <0.02 9

0.13 2 0.34 0 0.53 0 <0.05 9 0.14 0 <0.02 4 0.17 8 0.11 0

0.47 0 <0.02 2 0.05 2 5.70 0 <0.01 9 <0.01 9 <0.02 3 0.04 0 J

0.03 8 J 0.05 0 0.05. 1 0.02 6 0.02 5 0.02 5 U 0.02 9

0.05 3 J 0.07 1 0.07 4 0.05 9 0.20 0 0.02 4 0.02 3 0.00 0

0.06 3 J 0.02 2 0.03 9 0.05 7 0.01 9 0.01 9 U 0.02 3

0.04 3 0.04 0 J 0.03 9 0.03 8 J 0.43 0 0.06 6 <0.05 8 0.05 8 1.50 0 0.20 0 0.23 8 0.02 6 J 8014.200200000000 2 0.20 6 0.02 8 8014-200 3

8015 , 10/23/199 6 8015 , 10/09/199 7 8015,09/23/199 8 0.17 0 0.00 0

<0.04 6 0.04 6 <0.09 2 0.09 2 <0.04 6 0.04 6

12/02/200 3

## PC B (ppm )

PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 6 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 7 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 8 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 801 9 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 10/23/199 6 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2

file://C:\Monitor5\bin\mrwwwmr.htm 

## 8015,09/15/199 9 801 5 8015-200 1 8015.200200000000 2 8015-200 3

8016 , 10/23/199 6 8016 , 10/09/199 7 8016,09/23/199 8 8016,09/15/199 9 801 6 8016-200 1 8016.200200000000 2 8016-200 3

8017 , 10/23/199 6 8017 , 10/09/199 7 8017,09/23/199 8 8017,09/15/199 9 801 7 8017-200 1 8017.200200000000 2 8017-200 3

8018 , 10/23/199 6 8018 , 10/09/199 7 8018,09/23/199 8 8018,09/15/199 9 801 8 8018-200 1 8018.200200000000 2 8018-200 3

8019 , 10/23/199 6 8019 , 10/09/199 7 8019,09/23/199 8 8019,09/15/199 9 801 9 8019-200 1 8019.200200000000 2 <0.04 5 <0.02 5 <0.02 1 <0.02 0 <0.02 4

<0.05 6 <0.05 3 0.07 1 <0.05 8 <0.04 1 <0.03 2 <0.02 7 0.03 1

<0.05 3 <0.05 6 0.67 0 <0.05 7 <0.03 1 <0.03 0 <0.03 0 <0.03 4

<0.04 3 <0.04 3 <0.04 3 <0.05 4 <0.02 3 0.30 0 0.20 0 <0.04 8

0.02 9 0.24 7 0.27 6 <0.05 0 <0.03 0 0.49 0 0.39 4 Pag e 5 o f 8



## 0.04 5 0.02 5 0.02 1 0.02 0 0.02 4

0.05 6 0.05 3 0.05 0 0.05 8 0.04 1 0.03 2 0.02 7 0.00 0

0.05 3 0.05 6 0.11 3 0.05 7 0.03 1 0.03 0 0.03 0 0.03 4

0.04 3 0.04 3 0.04 3 0.05 4 0.02 3 0.04 2 0.05 2 0.04 8

0.02 8 0.06 8 0.06 0 0.05 0 0.03 0 0.04 1 0.03 5 U



# u

u

J J

J J

J

12/02/200 3

### Pag e 6 o f 8



## PC B (ppm ) 802 0 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) 10/23/199 6 PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 802 1 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) 10/23/199 6 PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 802 2 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) 10/23/199 6 PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 802 3 10/09/199 7 09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Polychlorinate dBiphenyl s PC B (ppm ) 10/23/199 6 PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) PC B (ppm ) 803 9 Polychlorinate d PC B (ppm ) 10/09/199 7

09/23/199 8 09/15/199 9 09/05/200 0 10/10/200 1 09/04/200 2 09/11/200 3 Biphenyl s 09/05/200 0 8019-200 3

8020 , 10/23/199 6 8020 , 10/09/199 7 8020,09/23/199 8 8020,09/15/199 9 802 0 8020-200 1 8020.200200000000 2 8020-200 3

8021 , 10/23/199 6 8021 , 10/09/199 7 8021,09/23/199 8 8021,09/15/199 9 802 1 8021-200 1 8021.200200000000 2 8021-200 3

8022 , 10/23/199 6 8022 , 10/09/199 7 8022,09/23/199 8 8022,09/15/199 9 802 2 8022-200 1 8022.200200000000 2 8022-200 3

8023 , 10/23/199 6 8023 , 10/09/199 7 8023,09/23/199 8 8023,09/15/199 9 802 3 8023-200 1 8023.200200000000 2 8023-200 3

803 9 <0.04 4

0.05 9 0.23 4 <0.05 3 <0.04 4 <0.02 8 <0.02 8 0.07 7 <0.03 2

<0.06 3 0.10 3 <0.06 3 <0.05 7 <0.02 6 <0.03 2 <0.02 9 <0.03 9

<0.05 9 <0.06 3 <0.06 3 <0.05 5 <0.02 6 <0.02 9 0.03 9 <0.03 8

0.05 0 <0.05 9 <0.07 9 <0.05 6 <0.02 5 <0.02 5 <0.02 6 <0.03 0

<0.05 9 0.04 4

0.05 3 J 0.04 4 0.05 3 0.04 4 0.02 8 0.02 8 0.03 3 J 0.03 2 J, J

0.06 3 0.05 7 J 0.06 3 0.05 7 0.02 6 0.03 2 0.02 9 U 0.03 9

0.05 9 0.06 3 0.06 3 0.05 5 0.02 6 0.02 9 0.03 6 0.03 8

0.04 5 J 0.05 9 0.07 9 0.05 6 0.02 5 0.02 5 0.02 6 U 0.03 0

0.05 9

### Pag e 7 o f 8



## PC B (ppm ) 09/05/200 0 PC B (ppm ) 09/05/200 0 PC B (ppm ) 09/05/200 0 PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/04/200 2 PC B (ppm ) 09/11/200 3 9A92 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9B00 0 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9B92 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C00 0 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C02 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C05 0 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C07 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C10 0 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1

file://C:\Monitor5\bin\mrwwwmr.htm 

## 803 9 803 9 803 9 8039-200 1 8039.200200000000 2 8039-200 3

9A925-200 1 9A925.200 2 9A952-200 3

9B000-200 1 9B000.200 2 9B000-200 3

9B925-200 1 9B925.200 2 9B925-200 3

9C000-200 1

- 9C000.200 2 9C000-200 3

9C025-200 1 9C025.200 2 9C025-200 3

9C050-200 1 9C050.200 2 9C050-200 3

9C075-200 1 9C075.200 2 9C075-200 3

9C100-200 1 <0.03 3

<0.06 1 0.02 9 <0.02 4 <0.02 4 0.08 8

0.08 6 0.65 0 0.67 0

0.65 0 0.90 0 2.10 0

0.27 9 0.10 0 0.21 0

0.32 0 1.91 0 0.60 0

0.03 5 0.76 0 0.49 0

0.39 0 1.44 0 0.35 0

2.32 0 1.94 0 0.78 0

0.47 0 0.03 3 0.06 1 0.05 0 0.02 4 0.02 4 0.00 0

0.02 3 0.02 3 0.00 0

0.02 4 0.02 2 0.00 0

0.02 6 0.02 3 0.00 0

0.02 6 0.02 3 0.00 0

0.02 4 0.02 2 0.00 0

0.02 3 0.02 2 0.00 0

0.02 6 0.02 3 0.00 0

0.02 4 

# u

J

J

J

J

J

J

J

12/02/200 3

### Pag e 8 o f 8



## PC B (ppm ) 09/05/200 2 PC B (ppm ) 09/11/200 3 9C12 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 9 C 100.200 2 9C100-200 3

9C125-200 1 PC B (ppm ) 09/05/200 2 9C125.200 2 PC B (ppm ) 09/11/200 3 9C125-200 3 9C92 5 Polychlorinate dBiphenyl s PC B (ppm ) 10/10/200 1 9C925-200 1 PC B (ppm ) 09/05/200 2 9C925.200 2 PC B (ppm ) 09/11/200 3 9C925-200 3 En dof repor t

Monito r 5 Dov e Technologie s , In e 1.13 0 1.10 0

0.51 0 0.75 0 1.00 0

0.68 0 2.32 0 0.77 0 0.02 3

0.00 0

0.02 4 J 0.02 1 0.00 0

0.02 7 J 0.02 7 0.00 0