IHnvMnNMlmMtt M

SDM S DocI D 45797 7 

### THIR D FIVE-YEA RREVIE W REPORT! ' -rrfcp dRecord s Cente r

F O R^' ' K : Mot-bvioQ- p rclSJS . NORWOO D PCB S SUPERFUN D SITE ? '/'^K : " g 3 Norwood , Massachusett s Decembe r 2009 Prepare dby : UnitedState s Environmenta l Protectio n Agency Region 1 Boston , Massachusett s

'1 1 Approve

dby : Jame s T . Oy^en

s HI, Difectb

r Offic e o f Sit e Remediatio

n an dRes^ratio n USEPA , Region 1 Date : /Z-^/t/ /NorwoodPCB s Superfun dSit e Five-Yea r Revie w Repor t Decembe r 2009 

## TABLE O FCONTENT S EXECUTIV E SUMMAR Y ES- 1 1. 0 INTRODUCTIO N 1- 1

1. 1 PURPOS E 1- 1 1. 2 AUTHORIT

Y FO RCONDUCTIN

G THE FIVE-YEA RREVIE W 1- 1 

## 2. 0 SIT

E CHRONOLOG Y 2- 1 3. 0 BACKGROUN D 3- 1 3. 1 SIT

E DESCRIPTIO

N 3- 1 3. 2 SIT

E HISTOR Y 3- 1 3. 3 INITIA LRESPONS E - PRE-RO D CLEA N U P ACTIVITIE S / REMOVA L ACTION S 3- 2 3. 4 BASI S FO RTAKIN GACTIO N 3- 2 3.4. 1 Summary o f

Remedia l Investigation s Result s 3- 2 4. 0 REMEDIA L ACTION S 4- 1

4. 1 REMED Y SELECTIO N 4- 1 4.1. 1 Remedia l Actio n (RA ) Objectives : Soi l an dSedimen t 4- 1 4.1. 2 Remedia l Actio n Objectives : Groundwate r 4- 2 4.1. 3 Remedia l Actio n Objectives : Meado w Broo k Sedimen t

4- 3 4.1. 4 Remedia l Actio n Objectives : Drainag e Syste man dRoo f Decontaminatio n & Gran t Gear Machinery/Equipmen t

an dFloo r

Surface s Decontaminatio n 4- 3 4. 2 REMED Y IMPLEMENTATIO N 4- 4 4.2. 1 Sourc e Contro l an dSoi l an dSedimen t / Ca p an dCove r

4- 4 4.2. 2 Groundwate r

Treatmen t

4- 5 4.2. 3 Meado w Broo k

Restoratio n 4- 6 4.2. 4 Gran t

Gea r Buildin g Demolitio n 4- 7 4.2. 5 Redevelopmen t

4- 7 4. 3 OPERATIO N AN D MAINTENANC E 4- 7 4.3. 1 Cap/Cove r

4- 7 4.3. 2 Groundwate r

Treatmen t

4- 7 4.3. 3 Meado w Broo k

Restoratio n 4- 8 5. 0 PROGRES S SINC E TH E LAS T REVIE W 5- 1 5. 1 PROTECTIVENES S STATEMEN T FRO M PREVIOU S FIVE-YEA RREVIE W5- 1 5.1. 1 200 4 Protectivenes s Statemen t 5- 1 5. 2 PROGRES S SINC E PREVIOU S FIVE-YEA RREVIE W 5- 1 5. 3 STATU S O FRECOMMENDATION S FRO M PREVIOU S FIVE-YEA RREVIE W 5- 2 6. 0 FIVE-YEA RREVIE W PROCES S 6- 1

6. 1 ADMINISTRATIV E COMPONENT S 6- 1 6. 2 COMMUNIT Y NOTIFICATIO N AN D INVOLVEMEN T 6- 1 6. 3 DOCUMEN T REVIE W 6- 1 6. 4 DAT A REVIE W 6- 2 6.4. 1 Groundwate r

Monitorin g Dat a6- 2 6.4. 2 Surfac e Water/Sedimen t 6- 3Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

### 6.4. 2 Ris k

Assessmen

t Dat a6- 5 6. 5 SIT E INSPECTIO N 6- 6 6. 6 INTERVIEW S 6-7 

### 7. 0 TECHNICA L ASSESSMEN T 7- 1 7. 1 QUESTIO N A : I s TH E REMED Y FUNCTIONIN G AS INTENDE D B Y TH E DECISIO N DOCUMENTS ? 7- 1 7. 2 QUESTIO N B : AR E TH E EXPOSUR

E ASSUMPTIONS , TOXICIT Y DATA , CLEAN U P LEVELS , AN D REMEDIAL ACTIO N OBJECTIVE S USE D A T TH E TIM E O FREMED Y SELECTIO N STILL VALID ? 7- 1 7. 3 QUESTIO N C : HA S AN Y OTHE RINFORMATION COM E T O LIGH T THA T COUL D CAL L INT O QUESTIO N TH

E PROTECTIVENES S OFTH E REMEDY ? 7-2 

### 7. 4 ARAR

S REVIEW

### 7-2 8. 0 ISSUE S 8- 1 9. 0 RECOMMENDATION S AN D FOLLOW-U P ACTION S 9- 1 10. 0 PROTECTIVENES S STATEMENT S 10- 1 10. 1 PROTECTIVENES S 10- 1 

### 11. 0 NEX T REVIE W 11- 1 12. 0 REFERENCE S 12- 1Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## LIS T O FTABLE S Tabl e 2- 1 Sit e Chronolog y 2- 1 Tabl e 3- 1 Norwoo dPCB s Superfun dSit e Lis t o f Contaminant s 3- 3 Tabl e 5- 1 Issue s & Recommendation s fro mPreviou s Revie w 5- 3 Tabl e 6- 1 Maximu mObserve dGroundwate r Analytica l Result s 6- 4 Tabl e 6- 2 Sit e Investigatio n Summar y 6- 6 Tabl e 8- 1 Issue s 8- 1 Tabl e 9- 1 Recommendation s an dFollow-u p Action s 9- 1

i nNorwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

## LIS T O FAPPENDICE S APPENDI X A Sit e Map s APPENDI X B Table s Documentin g ARAR s APPENDI X C Intervie w Note s APPENDI X D Photo s Documentin g Sit e Condition s APPENDI X E Five-Yea r Revie w Sit e Inspectio n Checklis t

I VNorwoo dPCB s SuperfimdSit e

Five-Year Revie w Report Decembe r 200 9

ARA R AWQ C CERCL A DO T F S GS A GZ A IRM MassDE P MC P NC P NP L NRWQ C O& M O U PA H PC B PP A pp m PR P R A RBA L RCR A R I RO D SAR A SVO C TA T TB C TC B TC E TSC A USAG E USEP A US T VO C 

## ABBREVIATION S AN D ACRONYM S Applicabl e o r

Relevan t an dAppropriat e Requiremen t Ambien t Wate r Qualit y Criteri a Comprehensiv e Environmenta l Response , Compensation , an dLiability Ac t Departmen t

o f Transportatio n Feasibilit y Stud y Genera l Service s Administratio n GZ A Ge o Environmental , Inc . Interi mRemedia l Measur e Massachusett s Departmen t o f Environmenta l Protectio n Massachusett s Contingenc y Pla n Nationa l Contingenc y Pla n Nationa l Prioritie s Lis t Nationa l Recommende dWate r Quality Criteri a Operatio n an dMaintenanc e Operabl e Uni t Polyaromati c Hydrocarbo n Polychlorinate dBipheny l Prospectiv e Purchase r

Agreemen t part pe r millio n Potentiall y Responsibl e Part y Remedia l Actio n Ris k Base dActio n Leve l Resourc e Conservatio n an dRecover y Ac t Remedia l Investigatio n Recor do f Decisio n Superfun dAmendment s an dReauthorizatio n Ac t Semi-Volatil e Organi c Compoun d Technica l assistanc e tea m T o B e Considere d Trichlorobenzen e Trichloroethylen e Toxi c Substance s Contro l Ac t U.S . Arm y Corp s o f

Engineer s Unite dState s Environmenta l Protectio n Agenc y Undergroun dStorag e Tan k Volatil e Organi c Compoun d cubi c yard sNorwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## EXECUTIV E SUMMAR Y Th e Unite dState s Envirormiental Protectio n Agency , Regio n 1 (USEPA ) ha s conducte daFive-Year Revie w o f

th e Remedia l Action s implemente da t th e Norwoo dPCB s Superfun dSit e (Site ) i n Norwood , Massachusetts , i n complianc e wit h th e Comprehensiv e Envirormienta l Response , Compensation , an d Liabilit y Ac t

(CERCLA) , 4 2 U.S.C . § § 960 1 e t seq . USEP A conducte dthi s revie w betwee n May 200 9 an dDecembe r

2009 . Thi s i s th e thir dFive-Year Revie w for

th e Site . Th e triggerin g actio n for th e first Five-Year

Revie w wa s th e star

t o f remedia l constructio n i n 1994 . Subsequen t review s hav e bee n conducte devery five years . Th e purpos e ofth e Five-Year Revie w i s t o evaluat e whethe r respons e action s an dorigina l performanc e standard s remai n protectiv e o f huma n health an dth e environment . Remedia l activitie s a

t th e Sit e wer e implemente di n thre e phases , with th e thir dphas e (Phas e 3 ) consistin g o f a n "A " an d"B" : Phas e 1 - groundwate r treatment ; Phas e 2 - buildin g demolition ; Phas e 3 A - cap an d cover ; an dPhas e 3 B - Meado w Broo k restoration. O n January 11 , 1996 , constructio n ofth e groundwate r treatmen t facility (Phas e 1 ) wa s completed . O n February 6 , 1997 , th e buildin g demolitio n (Phas e 2 ) wa s completed . O n Augus t

11 , 1998 , th e Cap an dCove r (Phas e 3A ) wa s completed . O n Augus t 11 , 1999 , Meado w Broo k

restoratio n (Phas e 3B ) wa s completed . Th e groundwate r treatmen t

facilit y operate dfro m Januar y 199 6 unti l Jun e 200 0 a t whic h tim e it

wa s shu t

down ; quarterl y groundwate r monitorin g continue dunti l Octobe r

2002 . At

thi s time , th e clean-u p goal s publishe di n th e 198 9 Recor do f Decisio n (ROD ) an dth e 199 6 Amende dRO D ha dno t bee n met ; however , ne w clean-u p goal s base do n a reclassificatio n o f

th e groundwate r

b y th e Commonwealth o f Massachusett s (th e Commonwealth ) wer e establishe di n a200 5 Explanatio n o f Significan t

Difference s (ESD) . Thes e hav e bee n me t an droutin e monitorin g ha s bee n [an dwil l continu e t o be ] performe dt o confirmthe y continu e t o b e met . I n Marc h 2008 , institutiona l control s (ICs ) i n th e for mo f aGran t o f Environmenta l Restrictio n an dEasemen t (Grant ) wer e recorde dfor th e Laham{i.e. , th e former Reardon ) property , th e are ao f th e Sit e encompassin g former

industria l operations . Subsequen t t o thei r recording , EP A an dMassDE P approve d aRedevelopmen t

Work Pla n (RWP ) thu s allowin g acommercia l retai l redevelope r t o complet e thei r constructio n o f

56,000-squar e feet

o f commercial/retai l spac e o n th e property . I n th e adjacent . Tow n o f Norwood-owne dMeado w Broo k parce l withi n th e Site , lan dus e restriction s require dunde r aConsen t Decre e with th e Tow n (Boo k No . 25628 , Pag e No . 534 ) hav e bee n recorde da t th e Norfol k

County Registr y o f

Deeds . Moreover , copie s o f Tow n Maste r

Plan s (sewe r

an dwater ) hav e bee n annotate dt o alert an y future publi c work s projec t o f th e existenc e o f

propert y us e restriction s withi n th e Meado w Broo k parce l du e t o Sit e contamination . Th e remed y at

Norwoo dPCB s Superfun dSit e protect s huma n health an dth e environmen t throug h meetin g groundwate r

clean-u p goals , th e establishmen t o f institutiona l controls , an dth e maintenanc e o f remed y infrastructur e concuretnl y an ddurin g redevelopmen t o f th e Site . In orde r

for th e remed y t o remai n protective , th e Operatio n & Maintenanc e (O&M ) Pla n an dEnvironmenta l Monitorin g Pla n (EMP ) mus t b e update dt o reflec t

change s i n sit e condition s a s aresul t o f th e redevelopment . Periodi c inspectio n ofth e Sit e an dabuttin g Meado w Broo k wil l b e conducte dt o insur e complianc e with th e recentl y recorde d ICs .

ES- 1Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report Decembe r 200 9 

## Five-Yea rRevie w Summar y For m SIT E IDENTIFICATIO N Sit e nam e (fro m WasteLAN) : Norwoo d PCB s USEP A I D (fro m WasteLAN) : MAD98067056 6 Region : 1 State : iVI A City/County : Norwood/Norfoll c Count y NP L status : Fina l Remediatio n statu s (choos e al l that apply) : Operatin g IVIultipi e OUs? * N o Constructio n completio n date : Septembe r199 9 Ha s sit e bee n pu t int o reuse ? Ye s REVIE W STATU S Lea d agency : USEP

A Autho rname : Da n Keef e an d Sha m u s Keohan e Autho rtitle : Remedia l Projec t Manage r Autho raffiliation : USEP A Revie w period : 05/0 9 t o 12/0 9 Date(s ) o f sit e inspection : 7/8/0 9 Typ e o f review : f l Post-SAR A , Pre-SAFI A , NPL-Remova l onl y Revie w number : 3 Triggerin g action : Completio n o f secon d Fiv e Yea rRevie w Triggerin g actio n dat e (fro m WasteLAN) : 200 4 Du e dat e (fiv e year s afte rtriggerin g actio n date) : 12/30/0 9

ES- 2NorwoodPCB s Superfim dSit e Five-Yea r Revie w Repor t Decembe r 2009



## Five-Yea r

Revie w Summar y For m(cont ) Issues : 1 ) Th e existin g O& M an dEM P ar e out-of-dat e a s aresul t o f redevelopment . 2) Punc h lis t

item s associate dwit

h redevelopmen t

nee dt o b e completed . Recommendation s an dFollow-u p Actions : 1 ) Complet e revision s t o th e O& M an dEM P that accuratel y reflect s th e post-redevelopmen t changes . 2) Complete dal l pimc h lis t item s associate dwith th e redevelopmen t withi n th e 2 year s perio dthat wa s contemplate di n th e approve dRedevelopmen t Wor k Pla n (i.e. , b y Marc h 2010) . Protectivenes s Statement : Th e remed y a

t Norwoo dPCB s Superfun dSite remain s protectiv e o f huma n health an dth e environmen t becaus e 200 5 revise dgroundwate r clean-u p goal s continu e t o b e met , remedia l infrastructur e i s bein g maintained , th e Redevelopmen t

Wor k Pla n ha s bee n successilill y complete d(pendin g completio n o f punc h lis t

items) , an d institutiona l control s ar e i n place . Othe r comments : Th e existin g Prospectiv e Purchase r Agreemen t

with th e Landowne r

need s t o b e amende dt o reflec t revise d institutiona l contro l obligation s unde r th e Gran t t o th e Commonwealth .

ES- 3Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report

Decembe r 200 9 

## 1. 0 INTRODUCTIO N 1. 1 PURPOS E Th e purpos e o f

thi s Five-Year

Revie w i s t o determin e whethe r th e remed y a

t th e Norwoo dPCB s Superfun dSit e (Site ) i s protectiv e o f huma n health an dth e environment . I n addition , thi s report identifie s issue s foun ddurin g th e revie w an drecommendation s t o addres s them . Th e U.S . Environmenta l Protectio n Agency , Regio n 1 (USEPA ) prepare dthi s Five-Year Revie w pursuan t

t o Sectio n 12 1 ofth e Comprehensiv e Environmenta l Response , Compensation , an dLiabilit y Ac t (CERCLA) , 4 2 U.S.C . § 963 1 an dth e Nationa l Contingenc y Pla n (NCP) , 4 0 C.F.R . Part 300 . CERCL A Sectio n 12 1 states : I f th e Presiden t

select s aremedia l actio n tha t result s in an y hazardou s substances , pollutants , o r contaminant s remainin g a t th e site , th e Presiden t

shal l revie w suc h remedia l actio n n o les s ofte n tha n eac h five year s afte r

th e initiatio n o f

suc h remedia l actio n to assur e tha t human health an dth e environmen t

ar e bein g protecte dby th e remedia l actio n bein g implemented . I n addition , i f upo n suc h revie w i t i s th e judgmen t

o f th e Presiden t

tha t actio n i s appropriat e a t suc h sit e in accordanc e wit h sectio n [104 ] o r

[106] , th e Presiden t

shal l tak e o r

requir e suc h action . Th e Presiden t

shal l repor t

to th e Congres s alis t

o f facilitie s fo r

whic h suc h revie w i s required , th e result s o f al l suc h reviews , an dan y action s take n a s aresul t

o f suc h reviews . Th e USEP A interprete dthi s requiremen t further i n th e NCP ; 4 0 CF R§300.430(f)(4)(ii ) states : I f aremedia l actio n i s selecte dtha t result s in hazardou s substances , pollutants , o r contaminant s remainin g a t

th e sit e abov e level s tha t allo w fo r unlimite dus e an dunrestricte dexposure , th e lea dAgenc y shal l revie w suc h actio n n o les s ofte n tha n ever

y five year s afte r

th e initiatio n o f

th e selecte dremedia l action . 

### 1. 2 AUTHORIT Y FO R CONDUCTIN G TH E FIVE-YEA R REVIE W Pursuan t t o Sectio n 121(c ) o f

CERCLA , 4 2 U.S.C . § 9631(c) , an d4 0 C.F.R . §300.430(f)(4)(ii ) ofth e NCP , Five-Year

Review s ar e require dat site s for which , upo n attainmen t o f th e Recor do f

Decisio n (ROD ) clean-u p levels , ther e ar e remaining hazardou s substances , pollutants , o r contaminant s remaining o n th e sit e that

wil l no t allo w for

unlimite dus e an dunrestricte dexposure . Sinc e th e RO D for thi s Sit e wa s signe di n 1989 , an dbecaus e waste s remaining i n th e cappe don-sit e landfil l an dwithi n th e adjacen t Meadowbroo k

Parce l wil l no t

allo w for

unlimite duse , fiiture Five-Year Review s for

thi s Sit e wil l continu e t o b e required . Thi s revie w reassesse s Applicabl e o r Relevan t an dAppropriat e Requirements (ARARs ) for substance s identifie da s contaminant s o f concern, an dconsider s whethe r ARAR s hav e bee n change dsuc h that th e remed y i s n o longe r

protective . Th e revie w als o consider s pendin g o r actua l change s i n zonin g o r lan d use s that coul dundermin e th e remed y an dth e nee dfor institutiona l control s a

t an dnear th e Site . Thi s revie w ha s bee n performe di n accordanc e with USEPA' s Jun e 200 1 Comprehensiv e Five-Year Revie w Guidance .

1- 1Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report Decembe r 200 9 

## 2. 0 SIT E CHRONOLOG Y Majo r sit e activitie s ar

e summarize

di n Tabl e 2- 1 Tabl e 2- 1 Sit e Chronolog y 06/8 3 06/8 3 08/8 3 06/8 6 05/8 7 09/8 9 04/9 4 11/9 4 01/9 6 03/9 6 05/9 6 02/9 7 04/9 7 10/9 7 08/9 8 08/9 9 09/9 9 12/9 9 04/0 0 06/0 0 05/0 1 05/0 2 12/04 12/04 02/0 5 07/0 5 10/0 6 05/0 7 03/0 8 03/0 8 05/0 8 11/0 8 03/0 9 09/0 9 12/0 9 Initia l discover y o f contaminatio n o n th e propert y Initia l Remova l Action s begi n Remova l Action s complet e Site liste do n Nationa l Prioritie s Lis t (NPL ) Remedia l Investigation/Feasibilit y Stud y (RI/FS ) complet e Recor do f Decisio n (ROD ) signe d Remedia l Desig n complet e On-sit e constructio n begin s for firs t phase , groundwate r

treatmen t

plan t Groundwate r

treatmen t

plan t constructio n complet e (Phas e 1 ) Operatio n an dMaintenance o f treatmen t syste mbegin s RO D Amendmen t

Signe d USEP A an dMADE P performe dfina l inspectio n o f

buildin g demolitio n (Phas e 2) PR P initiate dCap/Cove r

activities Meado w Broo k

Restoratio n begin s USEP A an dMassDE P performe dafinal inspectio n o f Cap/Cove r

(Phas e 3 A ) USEP A an dMassDE P performe dafinal inspectio n o f Meado w Broo k

Restoratio n

- Phase 3 B Constructio n Completio n designatio n achieve d Firs t 5-Yea r Revie w complet e Fina l Supplementa l Ris k

Assessmen t

submitte d Groundwate r

treatmen t

syste mtemporaril y shu t

dow n Groundwate r

Us e an dValu e determinatio n prepare db y MassDE P Fina l Amendmen t

t o th e Ris k

Assessmen t

submitte d Fina l Ca p & Cove r

Operatio n an dMaintenanc e Pla n approve d Secon dFive-Year

Revie w complet e ES D signe dmemorializin g ne w Groundwate r Clean-U p Level s 28" " Comprehensiv e Groundwate r Monitorin g Report Redevelopmen t

Work Pla n Submitte d Wastewate r

Treatmen t

Plan t Decommissione d ICs(Grant ) recorde dfo

r th e Lahampropert y Redevelopmen t

Work Pla n Approve d Redevelopmen t

Begin s Redevelopmen t

substantiall y complete d IC s (Notice ) recorde dfor Town-owne dMeado w Broo k parce l Fina l Close-ou t

Report complet e Thir dFive-Year

Revie w complet e

2- 1Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

# 3. 0 BACKGROUN D 3. 1 SIT E DESCRIPTIO N Th e Norwoo dPCB s SuperfimdSit e (referre dt o a s th e "Site" ) i s locate di n Norwood , Massachusett s approximatel y 1 4 mile s southwes t ofth e City o f

Boston . Se e Figur e 1 for aSit e Locu s Pla n an dFigur e 2 for aSit e Plan . Historically , th e sit e encompasse dapproximatel y 2 0 acre s consistin g o f severa l parcel s o f land , includin g industrial/commercia l propertie s an dassociate dparkin g area s i n a n industrial/commercia l are aadjacen t

t o aresidentia l area . T o th e north , th e Sit e i s bordere db y residentia l propertie s o n Audubo n Road ; t o th e eas t

b y th e heavil y commercia l U.S . Rout e 1 an dth e Dean Stree t acces s road ; t o th e south b y Dea n Street ; an dt o th e wes t b y residentia l propertie s o n Pellan aRoad . Propertie s alon g U.S . Rout e 1 i n th e vicinit y o f

th e Sit e ar e primaril y commercial , an dinclud e automobil e dealerships , an equipmen t renta l business , ape t

shop , restaurants , an dgasolin e stations . A pharmacy , a n aut o part s store , aDirec t Tir e dealership , an daMobi l gasolin e statio n ar e locate dt o th e southeas t o f th e Site , near

th e Dean Stree t acces s roa dan dRout e 1 . A shoppin g plaza , acar wash , an dtw o restaurant s ar e locate dacros s Dea n Stree t t o th e south o f

th e Site . Th e norther n portio n o f th e Sit e consist s o f

aportio n o f

Meadow Broo k surrounde db y asmal l woode darea . Meadow Broo k i s ashallo w strea mapproximatel y 6 t o 8 feet wid e an d6 t o 1 2 inche s deep . Th e Broo k serve s a s adrainag e wa y for ove r 90 0 acre s o f

densel y develope d lan dan ddischarge s eastwar dint o th e Neponse t Rive r approximatel y 1,60

0 feet downstrea mo f

th e Site . 

### 3. 2 SIT E HISTOR Y Contaminatio n a

t th e Sit e originate dfro mdisposa l practice s o f th e partie s wh o owne dth e propert y o r operate dbusinesse s o n th e Site . Th e former on-sit e buildin g wa s constructe di n 194 2 b y Bendi x Aviatio n Corporation , whic h produce dnavigationa l contro l system s an dconducte dothe r electroni c researc h for

th e U.S . Navy . I n Octobe r 1947 , th e lan dwa s purchase db y Tob e Deutschma n Corporation , whic h manufacture delectrica l equipmen t a t th e Site , includin g capacitor s an dtransformers . Th e propert y wa s purchase di n Octobe r

195 6 b y Comell-Dubilie r Electronics , Inc. , whic h als o manufacture delectrica l equipmen t

a t th e facility . I n Januar y 1960 , th e property wa s briefl y owne db y Maryval e Corporation , an d wa s the n purchase db y th e Friedlan dbrothers . Th e Friedlan dbrother s lease dth e property t o Federa l Pacifi c Electri c Company , whic h hel dth e leas e o n th e propert y unti l Octobe r 1979 . Durin g th e perio d fro m196 0 t o 1979 , Federa l Pacifi c Electri c Compan y operate dabusines s a t th e Site , an dsuble t

portion s o f th e facility t o Comell-Dubilie r Electronics , Inc . an dt o Arro w Hart Corporation , whic h als o manufacture delectrica l equipmen t a t th e facility . I n 1979 , th e Sit e wa s subdivided . Th e northeaster n portio n o f

th e Site , approximatel y 9 acres , wa s purchase db y Gran t Gea r Realty Trust , whic h lease dth e facility t o Gran t

Gea r Works , Inc. , t o produc e gear s for industry . Th e southern an dwestern portion s o f th e Site , approximatel y 1 6 acres , wer e purchase db y Pau l Birmingham , Pau l Reardon , an dJac k Reardo n wh o further

subdivide dth e propert y int o seve n lot s an dadde dane w privat e way , Kerry Place . O n Apri l 1 , 1983 , th e MassDEP , the n know n a s th e Massachusett s Departmen t o f Environmenta l Quality Engineering , receive datelephon e cal l fro macitize n livin g o n Pellan aRoa dreportin g pas t industria l wast e dumpin g an dcontaminatio n i n th e the n vacan t fiel do f Kerry Plac e betwee n Pellan aRoa dan dth e Gran t Gea r property . A s aresul t

o f thi s call , a n initia l fiel dmvestigatio n b y MassDE P wa s conducted . O n Apri l 6 , 1983 , MassDE P collecte dsoi l an dsedimen t samples . Th e initia l MassDE P investigation s confirme dth e presenc e o f PCBs . Th e MassDE P immediatel y move dt o restric t publi c acces s t o th e fiel d are aan dmarke darea s withi n th e Gran t Gear fenc e t o alert

worker s o f

th e possibl e danger . Becaus e o f limite dstat e fimds , th e MassDE P requeste dUSEP A involvement . Subsequently , USEP A contractor s assiste dMassDE P with th e collectio n o f confirmatory sample s o f th e oil-staine darea s alon g th e western fenc e lin e an di n othe r

area s o n bot h th e Gran t

Gear an dReardo n properties . Base do n thes e findings , it

3- 1Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report

Decembe r 200 9 wa s determine dthat

an emergenc y remova l actio n wa s warrante dt o addres s soil s outsid e th e Gran t Gea r Propert y with PC B concentration s greate r tha n 5 0 part s pe r

millio n (ppm) . Beginnin g Jun e 23 , 1983 , th e USEP A bega n remova l o f contaminate dsoil s o n th e She . A tota l o f 51 8 ton s o f contaminate dsoi l wer e remove dan ddispose do f off-site . Th e soil s wer e remove dfi-omlocation s withi n Kerr y Plac e an dGran t Gea r properties . Reporte dexcavatio n depth s wer e u p t o 3 0 inches . Durin g th e remova l action , wate r sample s take n fro mth e stormdrai n syste mbehin dth e Gran t Gea r Buildin g indicate dlo w level s o f

PCBs . Th e remova l actio n wa s complete do n Augus t 5 , 1983 . I n Decembe r

1983 , th e Sit e wa s further

evaluate db y USEP A an dsubsequentl y propose dfor inclusio n o n th e Nationa l Prioritie s Lis t

(NPL ) o n Octobe r

15 , 1984 . O n Jun e 10 , 1986 , th e sit e wa s formall y adde dt o th e NPL . Base do n th e preliminar y findings , MassDE P implemente da n Interi mRemedia l Measur e (IRM ) a t th e Sit e i n Januar y 1986 . Th e IRM wa s considere dnecessary t o limi t acces s t o area s o f

highes t surfac e soi l contaminatio n withi n th e fence dare ao f th e Gran t

Gear Property . Specifically , aMassDE P contracto r installe daca

p ove r a1.5-acr e portio n ofth e northwes t an dsouthwes t

comer s ofth e Gran t

Gea r Property . Th e contaminate dsurfac e soil s wer e covere dwith afilter fabri c line r

an d6 inche s o f

cmshe dstone . Th e cappe darea s wer e enclose dwith a4-foo t hig h wir e mes h fenc e an dth e area s wer e delineate dwith yello w hazar dtape . 

### 3. 3 INITIA L RESPONS E - PRE-RO D CLEA N U P ACTIVITIE S / REMOVA L ACTION S Th e followin g Pre-RO D Remova l Action s wer e performe dat th e Sit e 1 . Remova l Actio n complete di n th e summe r o f 198 3 b y USEP A - 51 8 ton s o f contaminate dsoi l wer e remove dfro mlocation s withi n th e Kerry Plac e an dGran t Gear properties . 2 . Remova l Actio n complete dJanuar y 198 6 b y MassDE P - a n IRM wa s implemente dt o limi t acces s t o area s o f

highes t surfac e soi l contaminatio n b y installin g aca p ove r a1.5-acr

e portio n o f

th e Gran t Gea r Propert y an dfencin g th e cappe dareas . 

### 3. 4 BASI S FO R TAKIN G ACTIO N Th e groundwater , soil , sediment , an dsurfac e wate r o n an dadjacen t

t o th e Sit e wer e foun dt o b e contaminate dwith volatil e organic compound s (VOCs) , polyaromati c hydrocarbon s (PAHs) , an dPCBs . Health threat s includ e direc t contac t with o r accidenta l ingestio n o f

contaminate dgroundwate r o r soil , a s wel l a s inhalatio n o f

airborn e contaminant s volatilize dfro mgroundwater . Remedia l action s wer e als o necessar y t o preven t

fiiture migration o f

contaminant s i n groundwater . 

### 3.4. 1 Summar y o f Remedia l Investigation s Result s Remedia l investigation s a t th e Sit e reveale dtha t contaminatio n wa s presen t i n sediment , soil , groundwater , surfac e water , an dsludges. Tabl e 1 present s th e contaminant s foun do n th e Site , th e medi a i n whic h the y wer e found , an dth e grou p t o whic h th e contaminan t belongs .

3- 2Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report Decembe r 200 9 

### Tabl e 3- 1 Nonvoo d PCB s Superfun d Sit e Lis t o f Contaminant s Contaminan t Medi a Contaminan t Grou p 1,1, 1 -Trichloroethan e Groundwater , Sediment , Soi l VO C 1,2,4-Trichlorobenzen e Groimdwater , Sediment , Soi l SVO C 1,2-Dichlorobenzen e Groimdwater , Sediment , Soi l VO C 1,2-Dichloroethan e Groundwater , Sediment , Soi l VO C 1,2-Trans-dichloroethylen e Groundwater , Sediment , Soi l VO C 1,3-Diclilorobenzen e Groimdwater , Sediment , Soi l VO C 1,4-Dichlorobenzen e Groundwater , Sediment , Soi l Bas e Neutra l Acid s Aroclo r 101 6 Groundwater , Sediment . Soi l PCB s Aroclo r 125 4 Groimdwater , Sediment , Soi l PCB s Aroclo r 126 0 Groundwater , Sediment . Soi l PCB s Bas e neutra l acid s Groundwater , Sediment , Soi l Bas e Neutra l Acid s Benzoi c aci d Groundwater , Sediment . Soi l Bas e Neutra l Acid s Chlorobenzen e Groundwater , Sediment . Soi l VO C Chloroform Groimdwater , Sediment . Soi l VO C PA H Groundwater , Sediment , Soi l PA H PCB s Groundwater , Sediment . Soi l PCB s Pentachloroethan e Groundwater , Sedimen t Soi l VO C Pheno l Groimdwater , Sediment . Soi l Bas e Neutra l Acid s Silve r Groundwater , Sediment . Soi l Metal s Viny l chlorid e Groundwater , Sedimen t Soi l VO C Zin c Groimdwater , Sedimen t Soi l Metal s

3- 3Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## 4. 0 REMEDIA L ACTION S 4. 1 REMED Y SELECTIO N Unde r it s lega l authorities , th e USEPA' s primar y responsibilit y at Superfun dsite s i s t o undertak e Remedia l Action s (RAs ) that ar e protectiv e o f

huma n health an dth e environment . I n addition . Sectio n 12 1 o f CERCL A establishe s severa l othe r statutory requirement s an dpreferences , including :

• RAs , whe n complete , mus t compl y with al l Federa l environmenta l an dmor e stringen t Stat e environmenta l o r

facility sitin g standards , requirements , criteria , o r limitations , unles s awaive r i s invoked . • Selec t

RA s shal l b e cost-effectiv e an dutiliz e permanen t solution s an daltemativ e treatmen t technologie s o r

resourc e recovery technologie s t o th e maximu mexten t practicable ; an da preferenc e for

remedie s wherei n treatmen t permanentl y an dsignificantl y reduce s th e volume , toxicity , o r

mobilit y ofth e hazardou s substances . Th e RO D for

th e Norwoo dPCB s sit e wa s signe di n Septembe r 1989 . Th e 198 9 RO D includedpumpin g an dtreatin g contaminate dgroundwater , excavatin g an dtreatin g soil s an dsediment s b y solven t extraction , an ddecontaminatin g th e Gran t Gear building . Du e t o highe r

tha n anticipate dcost s for solven t extraction , an amendmen t

t o th e RO D wa s publishe dan dsigne di n Ma y 1996 . Th e amende dRO D include d demolitio n o f

th e Gran t

Gea r building , excavatio n an dconsolidatio n o f contaminate dsoil s an dsediment s unde r an asphal t

cap an dcove r

areas , an drestoratio n o f Meado w Broo k

i n conjunctio n with th e Tow n o f Norwood' s floo dcontro l projec t withi n th e are ao f

th e Site . Remedia l ahemative s a t th e Sit e wer e develope dt o b e consisten t with th e NCP , 4 0 C.F.R . § 300.68(j) , whic h state s that th e selecte dahemativ e shal l b e cos t

effective ; technologicall y feasibl e an dreliable ; an deffectivel y mitigat e an dminimiz e damage s to , an dprovid e adequat e protectio n of , publi c health , welfare , an dth e environment . 

### 4.1. 1 Remedia l Actio n (RA ) Objectives : Soi l an d Sedimen t Th e R A objective s selecte di n th e 198 9 RO D t o addres s contaminate dsoil s an dsediment s a t th e Sit e ar e a s follows :

• Reduc e risk s pose db y direc t contac t with soi l contaminate dwith PCB s an dPAHs . • Reduc e risk s pose db y incidenta l ingestio n o f soil s contaminate dwith PCB s an dPAHs . • Minimiz e migration o f VOC s t o groundwater . Th e remed y selecte di n th e 198 9 RO D include dsoi l an dsedimen t excavation , treatmen t

usin g solven t extraction , an don-sit e disposal . Th e USEP A issue daReques t Fo r Proposa l (RFP ) regardm g th e soil/sedimen t solven t extractio n portio n o f th e remed y a s outline di n th e 198 9 ROD . I n 1995 , th e USEP A receive daproposa l for th e implementatio n o f

thi s work ; however , th e cos t greatl y exceede dprio r

cos t estimates . Als o base dupo n that proposal , th e USEP A believe dthat ther e woul db e difficultie s i n properly locatin g th e appropriat e solven t extractio n equipmen t

o n th e Sit e du e t o spac e constraints an dsafet y issues . Base dupo n thes e mitigatin g factors , th e USEP A determine dtha t i t wa s necessary t o amen dth e remed y for th e Sit e an da RO D Amendmen t

wa s issue di n 1996 . Th e amende dRO D propose dth e excavatio n o f hig h concentration s o f

chlorinate dorgani c compound s t o eliminat e acontinuou s sourc e o f groundwate r

contamination , excavatio n an dconsolidatio n o f PC B

4- 1Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 contaminate dsoi l fi-omportion s o f th e Gran t

Gear property an dfro mothe r surroundin g properties , includin g sediment s fi-omth e Meado w Brook , restoratio n o f Meado w Broo k

consisten t

with th e Town' s floodcontro l project , an dfinally cap an dcove r th e consolidate dcontaminate dsoi l an dsediment . Clean

u p level s for

five mai n categorie s o f

PC B contaminate dsoi l wer e set : Surficial soi l o n commercial/industria l properties : 4 0 part s pe r millio n (ppm ) PCBs ; Subsurfac e soi l o n commercial/industria l properties : 7 0 pp mPCBs ; Surficial soi l i n woode dare anorth o f Meado w Brook : 1 0 pp mPCBs ; Subsurfac e soi l i n woode dare anorth o f Meado w Brook : 5 0 pp mPCBs ; Soil s an dsedimen t

i n Meado w Broo k

an dit s banks : 1 pp mPCB s 

### 4.1. 2 Remedia l Actio n Objectives : Groundwate r Th e R A objective s selecte di n th e 198 9 RO D t o addres s groundwate r contaminatio n a

t th e Sit e ar e a s follows :

• T o reduce , withi n areasonabl e tim e frame , risks t o worker s pose db y inhalatio n o f airbom e contaminant s volatilize dfromgroundwater . • T o reduc e risks t o huma n health an dth e environmen t fro mcurren t

an dfiiture migratio n o f contaminant s i n groundwater . Groundwate r

a t th e Sit e i s contaminate dwith PCBs , VOC s (suc h a s trichloroethylen e an dviny l chloride) , an dSVOCs . Th e 198 9 RO D propose dthat contaminate dgroundwate r i n th e overburde n an dshallo w bedroc k aquifer s woul db e collecte db y abarrie r drain . Th e groundwate r collectio n syste mwoul db e designe dt o intercep t

contaminate dgroundwate r bot h i n th e overburde n aquifer that i s movin g towar d Meadow Broo k

an di n th e shallo w bedroc k aquife r that , a t th e poin t o f collection , woul db e discharging t o th e overburde n aquifer . Th e barrie r drai n woul db e designe dt o collec t contaminate don-sit e groundwater , bu t no t dra w i n off-site groundwate r an dsurfac e water . Contaminate dgroundwate r collecte dwoul db e treate db y agroundwate r treatmen t

system , includin g th e followin g treatmen t components : activate d carbon , ai r

strippin g with vapo r

phas e controls , an dprecipitation/filtration . Th e RO D Amendmen t

di dno t chang e th e pla n t o constmc t th e GWTP ; however , it

di dchang e th e metho d o f contaminate dgroundwate r collection , callin g for

aserie s o f

extractio n well s i n lie u o f th e barrie r

drai n specifie di n th e RO D an dspecifie ddischarg e o f treate deffluent

t o Meado w Broo k

rathe r tha n re-charg e t o th e groundwater . Th e GWT P wa s operationa l i n Januar y 199 6 an dtreatmen t continue dunti l i t

wa s shu t dow n i n Jun e 2000 . I n accordanc e wit h EPA' s 199 6 Fina l Groun dWate r Us e an dValu e Determinatio n Guidance , i n Ma y 2001 , MassDE P submitte da"low " us e an dvalu e determinatio n for th e groimdwate r

a t an di n th e vicinit y o f th e Site . Thi s determinatio n wa s mad e base do n th e aquifer' s classificatio n a s alo w yield , non potentiall y drinkin g wate r sourc e area , a s wel l a s th e fac t that nearb y residentia l an dcommercia l propertie s ar e supplie db y public , municipa l drinkin g wate r sources . A s aresul t

o f MassDEP' s "low " us e an dvalu e determination , th e contaminan t exposur e pathway s an d exposur e assumption s use dfor th e RO D wer e re-evaluated . Accordingly , supplementa l ris k assessmen t activitie s wer e initiate di n 200 1 an dwer e complete di n 2004 . A s th e resul t o f thes e assessments, revise d groundwate r

clean-u p levels , o r

risk-basedactio n level s (RBALs) , wer e calculate dfor th e Sit e groundwate r

i n Marc h 2003 . I n issuin g th e 200 5 ESD , EP A determine dthat thos e RBALs , whic h

4- 2Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 establishe dstandard s protectiv e for non-potabl e groundwater , woul db e th e ne w groundwate r clean-u p level s for thi s Site . 

### 4.1. 3 Remedia l Actio n Objectives : Meado w Broo k Sedimen t A s pe r t o th e 198 9 ROD , step s wer e take n t o minimiz e th e destmction , loss , an ddegradatio n o f wetland s durin g implementatio n ofth e remedy , includin g th e us e o f sedimentatio n basin s o r

sil t curtain s t o preven t downstrea mtransport

o f contaminate dsediments . A wetlan drestoratio n progra mwa s implemente dupo n completio n o f

th e remedia l activitie s i n wetlan darea s adversel y impacte db y th e remedia l actio n an d ancillar y activities . Th e RA objective s selecte di n th e 198 9 RO D t o Meado w Broo k Restoratio n ar e a s follows :

• Mitigat e an y fiiture impact s o f suc h remedia l activitie s t o Meado w Broo k an dth e surroundin g wetlan dareas . Measure s use dinclude dadequat e slopin g o f streambank s t o preven t

excessiv e soi l erosio n int o Meado w Brook . Th e remed y di dno t propos e t o restor e th e excavate dMeado w Broo k streambe dt o similar condition s existin g prio r t o excavation . Comment s fro mth e Tow n o f Norwoo dindicate dthat th e Meado w Broo k

floodcontro l project , whic h woul dinclud e al l portion s o f Meado w Broo k

targete dfor sedimen t excavatio n wa s slate dfor constmctio n upo n completio n o f th e Remedia l Action . Therefore , upo n completio n o f

th e soi l an dsedimen t

excavatio n o f

th e Meado w Brook , th e broo k streambe dan d adjacen t bank s fro mthes e area s wer e restored , t o th e maximu mexten t feasible , i n amanne r

consisten t with th e Meado w Broo k

Floo dContro l Projec t

plan s an dspecifications . Th e amende dRO D i n 199 6 di d no t chang e th e propose dremedia l altemativ e for Meado w Broo k

Restoration . 

### 4.1. 4 Remedia l Actio n Objectives : Drainag e Syste m an d Roo f Decontaminatio n & Gran t Gea rMachinery/Equipmen t an d Floo rSurface s Decontaminatio n Flushing , cleaning , and/o r containmen t

an dreplacemen t

o f portion s o f

Gran t Gear drainag e system , an d cleanin g an dsealin g o f

roo f surface s wa s propose di n th e 198 9 ROD . Th e R A objective s selecte di n th e 198 9 RO D t o addres s drainag e syste man droo f contaminatio n a

t th e Sit e ar e a s follows :

• T o minimiz e th e continue dreleas e o f hazardou s substance s t o Meado w Brook . Decontaminatio n o f

surface s o f

machinery , equipment , an dfloor surface s withi n th e plan t area s o f th e Gran t Gea r Buildin g wer e als o part

ofth e 198 9 ROD . Th e R A objective s selecte di n th e 198 9 RO D t o addres s gran t

gear machinery/equipmen t

an dfloor surfac e contaminatio n at th e Sit e ar e a s follows :

• T o reduc e risk s t o worker s associate dwith direc t contac t wit h PCB-contaminate dsurfaces . • T o reduc e risks t o worker s associate dwith inhalatio n o f airbom e PCB s withi n th e Gran t Gear Building . Du e t o th e fact

that Gran t Gear wa s n o longe r

i n operatio n an dit

wa s unlikel y that

th e existin g buildin g woul db e used , th e Amende dRO D i n 199 6 calle dfor demolitio n ofth e buildin g an don-sit e disposa l i n severa l ways . PCB-contaminate dbuildin g materia l wa s t o b e consolidate di n th e boile r roo man d dispose don-sit e unde r

th e cap . An y material , i n exces s ofth e capacity o f onsit e disposa l area s woul db e dispose da

t an appropriat e off-site property . Certai n materials , whic h ar e subjec t t o federal Resourc e Conservatio n an dRecover y Ac t (RCRA) , 4 2 U.S.C . § 690 1 e t seq. , requirements , woul db e dispose da t a n appropriat e off-site facility complyin g with RCR A an dToxi c Substance s Contro l Ac t (TSCA) , 1 5 U.S.C . § 260 1 e t seq. , requirements . Debri s tha t wa s uncontaminate dcoul db e reuse do r recycle da s appropriate .

4- 3Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

### 4. 2 REMED Y IMPLEMENTATIO N Th e USEP A issue daRO D i n 1989 , a n Amende dRO D i n 1996 , an da n ES D i n 2005 . Thre e separat e remedia l actio n phase s wer e completed , with th e thir dphas e consistin g o f aphas e "A " an d"B" . Phas e 1 wa s complete db y th e USEP A an dconsiste do f groundwate r

treatment . Phas e 2 wa s conducte db y th e Settlin g Defendant s an dconsiste do f th e Gran t Gear buildin g demolition . Phas e 3 A wa s conducte db y th e Settlin g Defendant s an dconsiste do f th e constmctio n o f

aca p an dcove r

ove r consolidate dcontaminate d soi l an dsediments . Finally , Meado w Broo k Restoratio n Phas e (Phas e 3B ) wa s complete db y USEPA . Remedie s implemente da t th e Sit e ar e briefl y describe di n th e followin g subsections . 

### 4.2. 1 Sourc e Contro l an d Soi l an d Sedimen t / Ca p an d Cove r Th e Settlin g Defendant s performe dexcavatio n o f sediment s i n Meadow Broo k a s pe r th e 198 9 RO D fro m Apri l 28 , 199 7 throug h Jul y 30 , 1998 , with atemporary wor k stoppag e fromFebmar y 1 9 t o Ma y 3 , 199 8 durin g winte r

conditions . Th e Meado w Broo k Remediatio n wa s divide dint o thre e section s referre dt o a s Reac h 1 , 2 , an d3 . Excavatio n activitie s withi n Meado w Broo k require dth e temporary diversio n ofth e stream . Dewaterin g cell s wer e constmcte di n th e northe mportio n o f th e Hurley property , locate dwes t o f th e existin g groundwate r treatmen t

plant . Tw o dewaterin g cell s wer e constmcte d- on e locate dt o th e west , whic h receive dsedimen t fro mReac h 1 only , an don e locate dt o th e east , whic h receive dsedimen t fro mReache s 2 an d3 only . Th e excavate dsedimen t wa s segregate di n thi s manne r du e t o th e lowe r concentration s o f

PCB s expecte dfor

th e sediment s remove dfro mReache s 2 an d3 . O n Jun e 7 , 1997 , excavatio n o f

Reac h 1 o f

Meadow Broo k

wa s completed . Approximatel y 2,40 0 cubi c yard s (yd^ ) o f materia l wa s excavate dfro mReac h 1 . O n Jul y 23 , 1997 , th e excavatio n o f Reac h 2 wa s completed . Th e excavatio n o f

Reac h 3 wa s performe di n tw o phase s - th e first consiste do f

sedimen t remova l fro mth e arche dculvert

sectio n a t Dea n Street , an dth e secon dconsiste do f sedimen t remova l fromth e bo x culvert section . Onc e clean-u p level s ( 1 pp mi n sediment ) wer e achieve da t 16 0 feet int o th e culvert , sedimen t remova l activitie s wer e terminated . Approximatel y 2,30 0 yd ' o f materia l wa s excavate dfi-omReac h 2 an dReac h 3 . Followin g th e excavatio n o f Reac h 1 t o th e excavatio n grades , a n are ao f staine dsoil s wa s observe d belo w th e elevatio n ofth e desig n excavatio n grad e at th e former

drainag e outfal l pipe . O n Jun e 11 , 1997 , after receivin g directio n fi-omth e USEPA , GZ A collecte dasoi l sampl e fro mth e are aan dsubmitte dit for laboratory analysis . Base do n th e analytica l results , adecisio n wa s mad e t o performalimite dremova l o f thi s staine dsediment . Th e limite dremova l o f th e staine dsedimen t

wa s performe dbetwee n Augus t 1 4 an dAugus t

19 , 1997 . Th e estimate dvolum e o f staine dsoi l remove di s 8 5 yd' . Soil s with PC B concentration s exceedin g th e appropriat e clean-u p level s wer e targete dfor excavatio n fro msevera l on-propert y areas . Trichlorobenzen e (TCB)-contaminate dsoi l identifie dnear soi l borin g locatio n SS-012 , wes t

ofth e former

Gran t Gea r building , wa s excavated . Th e excavate dunsaturate dzon e soil s wer e backfille dfro mth e bas e o f th e excavatio n t o abov e th e wate r table , an dsaturate dzon e soil s wer e backfille dfro mabov e th e wate r tabl e i n th e are ao f

th e excavatio n t o existin g grade . Approximatel y 5,90 0 yd ' o f

PCB-contaminatedsoi l wa s excavate dfro mth e Nort h Cove r Are aan dstockpile don-sit e for placemen t

unde r th e cap/cover . Approximatel y 2,60 0 yd ' o f PCB-contaminate dsoi l wa s excavate dfrom th e South Cove r

Are aan dstockpile don-sit e for placemen t

unde r th e cap/cover . Soil s with PC B concentration s exceedin g th e appropriat e clean-u p level s wer e targete dfor excavatio n fro msevera l off-property areas . Durin g th e activitie s performe dfor th e remediatio n o f

Reac h 1 o f Meado w Brook , area s containin g PCB-contaminatedsoil s alon g th e North Ban k Woode dAre awer e discovered . Approximatel y 10 0 yd ' o f soi l wa s excavate dfro mth e southe mhal f o f th e wester n North Ban k Woode dAre aan dstockpile don-sit e for placemen t

unde r th e cap/cover . After

th e conclusio n ofth e Reac h 1 remediatio n activities , area s containin g PCB-contaminatedsoil s wer e discovere dalon g th e Sout h

4- 4Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 Ban k Woode dArea . Approximatel y 78 0 yd ' o f soi l wa s excavate dfromth e Sout h Ban k Woode dAre a an dstockpile don-sit e for placemen t

unde r th e cap/cover . Previousl y stockpile dsoil s fi-omth e Reardo n property wer e relocate dt o th e Hurley property . Th e approximatel y 1,60 0 yd ' o f materia l wa s stockpile d i n tw o area s o f

th e Reardo n propert y - on e at th e sout h en do f th e propert y adjacen t

t o Dea n Street , an d th e othe r locate do n th e north en dofth e property adjacen t t o th e sout

h en dofth e Hurle y property . Both stockpile s wer e excavated , transported , an dstockpile dnea r th e southwes t

come r ofth e Hurley property . Beginnin g o n Apri l 30 , 1997 , th e stockpile dsoil s wer e consolidate don-site . Criteri awer e use dfor identifyin g ho w an dwher e th e material s shoul db e placed . Material s with PC B concentration s exceedin g th e risk-based, site-specifi c industrial/commercia l clean-u p level s wer e place dwithi n th e limit s o f th e propose dasphal t

cap . Material s with PC B concentration s belo w clean-u p level s wer e place dwithi n th e limit s ofth e propose dcove r areas . Durin g soi l excavatio n an dconsolidation , on-sit e undergroun dstorag e tank s (USTs ) wer e remove dbefor e th e cap s wer e installed . Th e existin g 10,000-gallo n undergroun d heatin g fiiel tan k

locate da t th e southwes t

come r o f th e former

Gran t Gea r buildin g an dth e 20,000-gallo n US T discovere dadjacent t o th e 10,000-gallo n tan k durin g th e buildin g demolitio n phas e o f wor k at th e Sit e wer e bot h decommissioned . Both UST s wer e cleaned , removed , an ddispose doff-site . Whil e excavatin g t o remov e th e 20,000-gallo n UST , an are ai n th e northeas t come r agains t th e former

buildin g foundatio n appeare dt o hav e petroleum-contaminate dsoil . Base do n visua l observations , thi s are awit h th e contaminate dsoil s wa s the n excavated . Th e materia l wa s stockpile dwit h th e previousl y stockpile d solid s fro mth e 20,000-gallo n UST . After th e PCB-contaminate dmaterial s ha dbee n place di n accordanc e with th e site-specifi c clean-u p level s an dconsolidate don-property , th e area s wer e prepare dfor th e installatio n o f

th e cap an dcovers . Onc e th e fill wa s place dt o th e appropriat e grad e (i.e. , approximatel y 1 2 inche s belo w th e final grad e i n cappe dan dcovere dareas) , anon-wove n geotextil e filter fabri c wa s lai dacros s th e ca p an dcove r

areas . A n asphal t

Ca p o r grave l cove r

wa s installe di n th e appropriat e areas . A detentio n basi n an dsurfac e drainag e syste mwa s designe dan dlocate dt o conduc t runof f acros s th e ca

p an dcove r t o adequatel y manag e th e discharg e o f mnoff , an dt o maximiz e th e are aofth e property suitabl e for redevelopment . Th e subsurfac e drainag e stmctures , oi l an dga s separators , catc h basin , drainag e manholes , drainag e lines , flared-endsections , an doutle t contro l stmcture s wer e designe dt o conve y overlan dstormwate r

flow t o th e stormwate r

detentio n basin . 

### 4.2. 2 Groundwate rTreatmen t Th e selecte dremed y for th e managemen t

o f migration o f

groundwate r

include dth e collectio n o f groundwate r

usin g a n extractio n syste mconsistin g o f nin e shallo w extractio n well s an dgroundwate r treatmen t consistin g o f

carbo n adsorptio n for

PC B removal , ai r

strippin g for

VOC s removal , an d precipitatio n filtration for metal s removal . Th e Groundwate r Extractio n an dTreatmen t Syste mwa s designe di n 199 4 an dconstmcte di n 1995 . Th e objectiv e ofth e syste mwa s t o minimiz e migratio n b y providin g an integrate dlong-termgroundwate r remediatio n facility . Nin e groundwate r

extractio n well s wer e installe di n Augus t 1995 , concurren t

with th e constmctio n ofth e treatmen t system . Th e facility wa s designe dt o operat e u p t o 2 5 years . O n Januar y 11,1996 , th e USEP A an dth e MassDE P conducte dapre-fina l inspectio n ofth e treatmen t facility an dit

wa s deeme doperationa l an dfunctional o n Febmar y 23 , 1997 . Metal s wer e remove dfro mgroundwate r usin g achemica l precipitatio n an dmulti-medi afiltration process . Sodiu mhydroxid e wa s adde dt o th e collecte dgroimdwate r t o caus e th e dissolve dmetal s t o precipitat e ou t o f solutio n an dfor

mcoagulate dsolids . Th e solid s fromth e chemica l precipitatio n an dfiltration proces s wer e collecte da s sludg e an ddewatere dt o facilitat e handling . Dewatere dsolid s wer e dispose doff-site i n an approve dlandfill , whic h operate di n complianc e wit h RCRA . Th e contaminate dwate r wa s the n

4- 5Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 pumpe dt o th e to p o f

an ai r strippin g tray towe r

wher e ai r

wa s blow n int o th e botto mo f th e tower , a s th e wate r wa s introduce dat

th e to p an dcascade ddown . Thi s counte r curren t flow throug h th e tra y towe r transferre dVOC s fro mth e groundwate r int o th e ai r

stream . Th e ai r

strea mwa s the n passe dthroug h a catalyti c oxidize r

t o destro y contaminant s befor e bein g release dint o th e atmosphere . A n activate dcarbo n uni t wa s use dt o remov e PCB s a s afinal polishin g ste p after th e ai r stripper . Al l hazardou s waste s transporte doff-site wer e dispose di n accordanc e with RCRA , Departmen t o f Transportatio n (DOT) , an d Massachusett s Hazardou s Wast e regulations . Wate r extracte dfiromth e sludg e durin g dewaterin g wa s pumpe dbac k

t o th e inle t

equalizatio n tan k

an dmixe dwith th e collecte dgroundwate r fo r treatment . Th e groundwate r

treatmen t

syste mwa s operationa l unti l it wa s shu t dow n (a t that tim e temporarily ) i n Jun e o f 2000 . A s aresul t

o f th e revise dgroundwate r classificatio n (fro mpotabl e t o non-potable ) an d "low " us e an dvalu e ascribe db y MassDEP , i n th e 200 5 ES D EP A determine dthat n o fiirther

groundwate r clean-u p wa s necessary , a s revise dclean-u p goal s wer e alread y bein g met . A fina l comprehensiv e groundwate r

monitorin g report

wa s complete di n 2005 , 5 year s after GWT P shu t

down , t o ensur e that

th e goal s wer e bein g met . Thi s report reveale dtha t

groundwate r

clean-u p goal s wer e continuin g t o b e me t an dEP A subsequentl y bega n GWT P decommissionin g activitie s i n 2007 . A s pe r th e Prospectiv e Purchase r Agreemen t

(PPA ) signe dwith th e property owner , EP A decommissionin g activitie s include d th e remova l o f

al l proces s equipmen t

an dterminatio n o f

utilitie s an dextractio n well piping . Thi s wa s substantivel y complete ddurin g th e Sprin g 2007 , after whic h th e shel l o f

th e buildin g wa s transferre do n Apri l 5 , 200 7 t o th e owne r wh o subsequentl y notifie dEP A o f hi s intentio n t o demolis h th e GWT P i n favo r o f othe r redevelopmen t

plans . Th e GWT P wa s dismantle di n Marc h 200 8 jus t prio r t o th e beginnin g o f

constmctio n ofth e commercial/retai l building s 

### 4.2. 3 Meado w Broo k

Restoratio n I n accordanc e wit h th e 199 6 Amende dROD , an dafter th e Settlin g Defendant s finishedexcavatio n o f contaminate dbroo k

sediments , th e USEP A restore dan dstabilize dth e sid e slope s an dbotto mo f Meado w Broo k i n orde r t o complet e th e Tow n o f Norwood' s floodcontro l projec t withi n th e are aofth e Site . Th e broo k wa s excavate dt o th e depth s require dt o mee t th e contour s ofth e floodcontro l project . Th e sid e slop e an dbotto mo f

th e broo k

wer e the n restore dwit h alaye r o f geotextil e fabri c an dappropriat e restoratio n material s (riprap , interlockin g concret e block s o r precas t concrete) , whic h covere dan y residua l contaminatio n locate da t depth s belo w th e floodcontro l contour s ofth e restore dbroo k channel . Restoratio n activitie s alon g Reac h 1 , adjacen t t o th e Site , too k

plac e betwee n Octobe r

an dDecembe r 1997 . Du e t o concern s relate dt o th e us e o f interlockin g concret e block s o n th e steepe r slope s o f Reac h 2 , precas t concret e channe l section s wer e used . Thi s redesig n effort , a s wel l a s severa l hig h wate r conditions , resulte du i delay s i n completin g restoratio n activitie s i n Reac h 2 . Reac h 2 activitie s too k plac e betwee n Apri l an dJul y 1999 . N o restoratio n activitie s wer e require dfor Reac h 3 , a s thos e culverte dsection s remaine dintact . Th e USEP A an dth e MADE P performe dafinal inspectio n o f th e Meado w Broo k

Restoratio n projec t

o n Augus t 11 , 1999 . Planting s an dreseedin g wer e complete dan daccepte di n Octobe r 1999 . O n Augus t

18 , 2000 , Meado w Broo k

O& M responsibilitie s an dth e Operatio n an dMaintenanc e Manua l for th e Meado w Broo k Restoratio n wer e transferre dt o th e Tow n o f Norwood . I n addition t o thes e clean-u p activities , aNotic e o f Righ t o f Acces s an dDeclaratio n o f Covenants , Condition , an dRestriction s ("Notice") , whic h i s an Attachmen t i n th e Town' s Consen t Degree , wa s recorde di n th e Norfol k County Registry o f

Dee d(Boo k

No . 25628 , Pag e No . 534) . Thi s Notic e describe s variou s restriction s o n th e Meado w Broo k parce l including , bu t

no t limite dto , th e following :

4- 6Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 1 . Th e restrictio n o f

groundwate r

extraction , excep t

for th e purpos e o f

monitorin g contaminatio n levels . Groundwate r

well s for suc h purpose s can onl y b e installe dpursuan t t o apla n approve db y EPA . 2 . N o us e o r

activit y shal l b e permitte do n an y portio n o f th e propert y whic h ma y disturb o r adversel y affec t

an y ofth e remedia l measure s implemente da t th e Site . 

### 4.2. 4 Gran t Gea rBuildin g Demolitio n Th e former

Gran t Gea r facility wa s demolishe ddurin g th e demolitio n phas e o f th e R A performe d betwee n Octobe r

199 6 an dFebruary 1997 . Elevate dconcentration s o f PCB s wer e detecte di n o r o n muc h o f th e buildin g materials , includin g stmctura l steel , equipment , concrete/brick , an droo f decking . Brick , concret e block , an dwallboar dmaterial s wer e cmshe dan dstockpile do n th e buildin g slab . Contaminate d woo ddeckin g wa s shredde dan dstockpile di n th e loadin g doc k are awes t

o f th e buildin g slab . Al l othe r buildin g materials , includin g asbestos-containin g material , stmctura l steel , an doffic e an dmanufacturin g equipmen t

wer e eithe r

place di n th e subgrad e boile r roo mo r disposed/recycle doff-site . A s th e boile r roo mwa s filled, car e wa s take n t o limi t voi dspaces . Remainin g void s wer e filledwith "flowabl e fill" an da14-inch-thic k

reinforce dconcret e sla b designe dfor

anticipate dloadin g (vehicl e traffic ) wa s constmcte dove r

th e boile r

roo mopening . 

### 4.2. 5 Redevelopmen t I n additio n t o thes e remedia l actions , redevelopmen t resulte di n additiona l protectivenes s o f th e soi l an d sediment s unde r

th e cap . T o ensur e th e integrit y o f th e origina l cap , th e developer s constmcte dne w building s aroun dth e cap thu s utilizin g th e remedia l ca p a s th e are at o b e use da s aparkin g lot . I n orde r t o mak e necessar y surfac e grade s a s part ofth e redevelopment , a n additiona l 6 t o 1 2 inche s o f grave l an d4 inche s o f asphal t wer e installe dove r

th e remedia l cap , thereb y increasin g it s protectiveness . I n addition , a s an adde dlaye r

o f protectivenes s t o future buildin g occupants , th e building s wer e constmcte dwith a passiv e vapo r

mitigatio n syste mconsistin g o f alaye r o f gravel , anetwork

o f transmissio n line s i n th e grave l laye r

whic h ar e passivel y vente dt o th e exterior , an dth e applicatio n o f Liqui dBoo t

"^ ^ ( aspray applie dmembran e system) . 

### 4. 3 OPERATIO N AN D MAINTENANC E Th e Ca p an dCove r

O& M Plan , detaile di n th e followin g section , wa s finalizedi n 2004 , prio r t o th e redevelopmen t

o f th e Site . Accordingly , th e O& M pla n shoul db e update da s soo n a s possibl e t o reflec t th e component s ofth e sit e tha t hav e bee n modifie d(suc h a s wel l locations ) a s aresul t o f redevelopment . 

### 4.3. 1 Cap/Cove r Th e purpos e o f

th e O& M Pla n i s t o outline th e action s tha t wil l b e take n b y th e Settlin g Defendant s an d propert y owne r

(i f redevelopmen t

related ) followin g th e completio n o f remedia l activitie s a

t th e Sit e t o monito r th e long-termeffectivenes s o f th e RA . Th e O& M Pla n present s adescriptio n o f ca p inspectio n an dmaintenanc e activities ; potentia l operationa l problems ; th e operationa l safet y plan ; necessary equipment ; recor dkeepin g procedures ; groundwater , surfac e water , an dsedimen t monitorin g requirements ; an damonitorin g wel l maintenanc e program . Th e final (pre-development ) O& M Pla n wa s approve di n Decembe r

2004 . 

### 4.3. 2 Groundwate rTreatmen t Sinc e th e groundwate r

clean-u p goal s wer e achieve dan dth e GWT P decommissione dther e i s n o GWT P O&M .

4- 7Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

\Decembe r 200 9 

### 4.3. 3 Meado w Broo k Restoratio n A Meadow Broo k

O& M Manua l wa s prepare db y th e Unite dState s Arm y Corp s o f Engineer s (USACE ) i n Jun e 200 0 for

th e Meado w Broo k

restoration. Th e O& M o f th e Meado w Broo k

Restoratio n wa s transferre dt o th e Tow n o f Norwoo di n Augus t

2000 . Th e O& M Manua l i s intende dt o enabl e th e Tow n t o maintai n th e floodcontro l project , a s wel l a s amunicipa l sewe r easemen t tha t run s throug h th e parcel , whil e preventin g th e releas e o f an y remaining contaminant s that wer e lef t i n plac e imdemeath th e flood contro l stmctures . Th e projec t i s mostl y self-regulatin g an dO& M i s limite dt o preventin g excessiv e vegetatio n o r

debri s accumulation , an drepairin g damag e cause db y erosio n an dvandalism . Walkin g inspection s ar e recommende dat leas t every thre e month s t o detec t deterioratio n o f

projec t features . Bank s shoul db e inspecte dfor damag e b y rain , wav e wash , sloughing , o r vandalism . Obstmction s cause db y debri s shoul db e removed . Vegetatio n shoul db e allowe dt o gro w i n certai n areas , bu t no t others . Detail s ar e discusse di n th e Meado w Broo k O& M Manual . Monitorin g o f

wate r quality an dsedimen t

i n withi n Meado w Broo k i s conducte db y th e non-municipa l Settlin g Defendant s t o asses s whethe r th e remed y i s remaining protectiv e an dis , therefore , part ofth e Cap an dCove r

O& M Plan .

4- 8Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report

Decembe r 200 9 

## 5. 0 PROGRES S SINC E TH E LAS T REVIE W 5. 1 PROTECTIVENES S STATEMEN T FRO M PREVIOU S FIVE-YEA R REVIE W Th e followin g section s contai n th e protectivenes s statement s fro mth e previou s 200 4 Secon dFive-Year Review . 

### 5.1. 1 200 4 Protectivenes s Statemen t Th e followin g statemen t wa s includedi n th e 200 4 Secon dFive-Year Revie w Report : "Th e remedy a t Norwoo dPCB s Superfun dSit e protect s human health an dth e environmen t becaus e ne w clean-u p goal s hav e bee n met . Operatio n & Maintenanc e (O&M ) Plan s hav e bee n submitte dby th e PRP s an dapprove d fo r th e Gran t

Gea r Property , an dinstitutiona l control s ar e in place . Meadow Broo k O& M ha s bee n transferre dt o th e Tow

n o f Norwood . However , i n orde r fo r th e remed y t o b e protectiv e i n th e long-term , th e followin g action s nee dt o b e taken : institutiona l control s fo r th e industria l sit e an dMeadow Broo k mus t b e update dan dimplemente dan dmonitorin g an dOperatio n an dMaintenanc e a t th e sit e mus t

b e conducte dregularly. " Th e 200 4 Secon dFive-Year Revie w Repor t

wa s signe do n Decembe r 29 , 200 4 b y Susan Studlien , Director , Offic e o f Sit e Remediatio n an dRestoration . 

### 5. 2 PROGRES S SINC E PREVIOU S FIVE-YEA R REVIE W Belo w i s asummary o f

progres s sinc e th e las t

Five-Year

Review . Shortl y after

th e 200 4 Five-Year

Revie w wa s completed , EP A release dan ES D t o documen t ne w clean

u p goals . Thes e ne w clean-u p goal s for groundwate r

wer e base dupo n "RBALs " whic h wer e calculate d for th e protectio n o f

ecologica l receptor s predominatel y tha t utiliz e Meado w Broo k

(whic h receive s contaminate dgroundwater ) an ddetaile di n aTechnica l Memorandu mi n 2003 . PCB s d o no t hav e a clean-u p goal establishe di n eithe r th e RO D o r

ESD . Moreover , th e 198 9 RO D acknowledge dthat clean

u p o f PCB s i n groundwate r

woul db e "technicall y infeasible. " Notwithstandin g this , an RBA L wa s calculate d[for

PCBs] an dwhic h wa s exceede di n groundwater . PCB s wer e als o detecte di n surfac e wate r abov e th e Ambien t

Wate r Qualit y Criterion . Accordingly , asupplementa l risk evaluatio n (Phas e I I Ecologica l an dHuma n Health Ris k Summary ) wa s complete di n 2004 . Thi s assessmen t conclude d"tha t th e existin g condition s an dlevel s o f contaminant s presen t

i n Meado w Broo k

d o no t represen t aris k t o th e environment. " I n regard s t o huma n health , "n o health concern s wer e indicate db y th e groundwate r dat a relativ e t o curren t

o r projecte dlan duse " an d"n o huma n health concern s [wer e identified ] relativ e t o th e sedimen t sample s fi-omMeado w Broo k o r th e Neponse t

River. " I n 2005 , afinal comprehensiv e groundwate r evaluatio n wa s complete dan dth e resultin g report documente dn o ROD-specifie dcontaminant s i n groundwate r abov e thei r

respectiv e groundwate r

clean-u p goal s establishe di n th e ESD . Havin g confirme dthat al l groundwate r

clean-u p goal s wer e bein g me t (approximatel y 5 year s after GWT P shu t

down) , it

wa s determine db y USEP A an dMassDE P tha t th e GWT P wa s n o longe r

necessary . Th e GWT P wa s subsequentl y decommissioned . A s pe r th e 199 7 PP A wit h th e property owner , EP A maintaine dresponsibilit y for removin g al l chemica l proces s equipment ; thi s wa s don e unde r

contrac t b y th e USAC E i n 2007 . A s pe r th e PPA , th e buildin g stmctur e (shell ) wa s lef t for th e property owne r

t o eithe r reus e o r dismantle ; it

wa s subsequentl y dismantle db y th e owne r i n 2008 . I n 2006 , adevelope r

propose dalarg e ( > 150,00 0 sf ) redevelopmen t

whic h woul dhav e bee n situate d predominantl y on/ove r

th e Ca p an dwoul dhav e require dexcavatio n i n th e "cappe dmaterial" . Base do n loca l concern s associate dwit h disturbin g contaminant s fro munde r th e cap , thi s redevelopmen t wa s no tNorwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 approve db y th e Town . Subsequently , th e develope r modifie dthei r

redevelopmen t

plan s including , notably , th e constmctio n o f commercial/retai l building s aroun dth e footprin t o f th e cappe dportio n o f

th e Site . Thi s reus e woul densur e that non e o f th e highest-contaminate dmateria l woul db e expose ddurin g constmction . Th e revise dWor k Pla n for Redevelopmen t

wa s approve db y EP A an dMassDE P i n Marc h 2008 , after

whic h th e develope r

receive dth e necessar y Tow n approvals . A s require db y th e PPA , th e Owne r update dan drecorde d(with th e Norfol k Count y Registry o f

Deeds ) institutiona l control s i n th e for mo f aGran t o f Environmenta l Restriction s an dEasemen t (th e "Grant" ) prio r t o th e redevelopment . Th e Gran t wa s recorde do n Marc h 27 , 200 8 an dentere dint o Boo k No . 25628 , Pag e No . 534 . Th e Gran t prohibit s certai n activitie s suc h as : 1 . Agricultura l us e 2 . residentia l us e 3 . da y car e o r

educationa l us e 4 . recreationa l us e 5 . extractio n o f

groundwate r 6 . excavatio n o f

materia l fro mth e sit e (includin g soils , minerals , an dresources ) 7 . constmctio n o f

building s o n th e cap 8 . an y activitie s that

woul dinterfer e with th e effectivenes s ofth e selecte dremed y An y reques t

t o allo w o r

modif y th e Gran t

restriction s mus t

b e mad e t o th e Grantee , th e Commonwealth represente db y MassDEP , wit h notic e t o th e USEPA . With thes e institutiona l control s i n place , an dwith EPA' s an dth e Town' s approval , redevelopmen t bega n i n Ma y 200 8 an dwa s substantivel y complete db y Novembe r

2008 . Th e PP A wit h th e landowne r need s t o b e amende ds o tha t reportin g requirement s unde r th e PP A ar e consisten t

wit h requirement s unde r

th e Grant . I n 2009 , th e Tow n o f

Norwoo drecorde dacop y o f th e Consen t

Decre e entere dint o b y th e Town , USEPA , an dth e Commonwealth . Include di n th e recorde dC D i s aNotic e o f Righ t o f Acces s an d Declaratio n o f

Covenants , Conditions , an dRestriction s whic h provid e long-ter mrestriction s o n th e Meadow Broo k

parcel . Additiona l detail s o f thes e restriction s ar e provide di n Sectio n 4.2. 3 o f thi s Five

year Review . With th e Notic e an dGran t recorded , IC s exis t

throughou t

th e sit e t o ensur e th e safet y o f huma n health an dth e environmen t int o th e fiiture . Th e PRP s continu e t o conduc t O& M includin g cap maintenanc e an dperiodi c collectio n o f surfac e water , sedimen t an dgroundwater . I n Septembe r 2009 , EP A complete daFina l Closeou t Report (FCOR ) whic h state s tha t remedia l activitie s wer e complete , al l institutiona l control s wer e i n place , an dclean-u p level s wer e bein g met . 

### 5. 3 STATU S O F RECOMMENDATION S FRO M PREVIOU S FIVE-YEA R REVIE W I n th e previou s Five-Year Review , alis t

o f recommende daction s for continue dO& M ofth e remedie s an d associate dfeature s wa s developed . Thes e issue s an drecommendation s ar e presente di n Tabl e 5-1 , whic h als o include s adescriptio n o f ho w th e issue s hav e bee n resolved .

5- 2Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report Decembe r 200 9

Tabl e 5- 1 Issue s & Recommendation s fro m Previou s Revie w Issue s fro mPreviou s Revie w Ne w groundwate r

monitorin g dat ashoul db e collecte d an devaluate drelativ e t o revise dclean-u p standards . Meado w Broo k

surfac e wate r

an dsedimen t

shoul d continu e t o b e monitore dt o determin e complianc e with ARARs ; ensur e that ther e i s no t

an unacceptabl e risk t o huma n health an dth e environmen t an dthat th e remed y remain s protective . Update dinstitutiona l control s hav e no t bee n recorded . A monitorin g wel l wa s observe dwithou t aloc k i n th e north ca p area .

N o O& M procedure s hav e bee n conducte di n th e Meado w Brook . Crack s wer e note di n th e cap , whic h nee dt o b e investigate d Cap e Co dberm s wer e damage ddurin g plowing . Actio n Take n an dOutcom e Groundwate r

dat acontinue s t o b e collecte dan d compare dt o clean-u p goals . Meado w Broo k

surfac e wate r

an dsedimen t

dat a continue s to b e collecte dan dmonitored .

Institutiona l control s hav e bee n update dan d recorde dfor

both privately-owne d(Laham ) an d municipally-owne d(Meado w Brook ) parcel s A s aresu h o f

GWT P demolition , th e majority ofth e well s hav e bee n decommissioned . However , severa l monitorin g well s wer e selecte dfo r long

teii n monitorin g an drequire drelocatio n a s aresul t ofth e redevelopment . Thi s ha s bee n completed . I n 2000 , an O& M pla n wa s give n t o th e Town . Thi s maintenanc e i s recommende dt o ensur e functionality o f

th e drainag e improvements . T o date , thi s ha s no t

bee n performed . Al l crack s hav e bee n repaired . Cap e Co dberm s wer e eliminate da s aresul t o f redevelopment .

5- 3Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

## 6. 0 FIVE-YEA R REVIE W PROCES S 6. 1 ADMINISTRATIV E COMPONENT S Th e USEP A Remedia l Projec t Manage r le dth e Norwoo dPCB s Superfun dSite Five-Year Revie w team , whil e risk

assesso r Ric k Suga t provide dtechnica l assistance . Th e revie w wa s conducte dbetwee n Apri l 200 9 an dDecembe r

2009 . Th e scop e ofth e revie w included :

• Documen t

Revie w • Standard s (ARAR ) Revie w

• Sit e Interview s • Sit e Inspectio n • Communit y Relation s • Five-Year

Revie w Report 

### 6. 2 COMMUNIT Y NOTIFICATIO N AN D INVOLVEMEN T Community notificatio n wa s initiate db y ameetin g hel do n Apri l 6 ' 200 9 betwee n Remedia l Projec t Manage r Danie l Keef

e an drepresentative s fromth e Tow n o f Norwood . A publi c notic e wa s subsequentl y prepare dan drelease do n Jul y 27 , 200 9 t o th e Dail y New s Transcript . Anothe r notificatio n t o th e newspape r

wil l b e issue dannouncing th e completion ofth e report an dth e result s ofth e review . A cop y ofth e final report

wil l b e availabl e for

revie w a t th e Morril l Memoria l Library i n Norwood , MA ; th e USEPA' s Regio n 1 Office ; an dth e USEPA' s website : http://www.epa.gov/regionl/superfund/sites/norwood . 

### 6. 3 DOCUMEN T REVIE W Th e projec t

tea mreviewe ddocuments an dsit e files t o becom e knowledgeabl e with th e histor y an dstatu s o f clea n up , an dt o asses s th e protectivenes s o f RA s a t th e site . Specifi c document s reviewe dincluded : 1 . Septembe r

29,198 9 Recor do f

Decisio n 2 . Ma y 17 , 199 6 Amende dRecor do f Decisio n 3 . Septembe r

23 , 199 9 Preliminary Close-Ou t Report 4 . Decembe r

30 , 199 9 Five-Year

Revie w Report 5 . Apri l 200 0 Fina l Supplementa l Ris k Assessmen t

(Foste r Wheeler ) 6 . Jun e 200 0 Operatio n an dMaintenanc e Manua l - Meado w Broo k Restoratio n (USACE ) 7 . Augus t

200 0 Interi mRemedia l Actio n Report for th e Groundwate r

Treatmen t

Plan t (Foste r Wheeler ) 8 . May 11 , 200 1 MassDE P Groundwate r Us e an dValu e Determinatio n 9 . January 200 2 Meado w Broo k Restoratio n Remedia l Actio n Report (USACE ) 10 . Ma y 200 2 Fina l Amendmen t t o th e Supplementa l Ris k Assessmen t

(Foste r Wheeler )

6- 1Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 11 . Marc h 200 3 Fina l Technica l Memorandu m- Developmen t o f Risk-Base dActio n Level s (Foste r Wheeler ) 12 . Marc h 200 3 27 * Quarterl y Groundwate r Monitorin g Report

(Nobis ) 13 . Septembe r

200 3 Soil/Broo k

Remedia l Constmctio n Report (GZA ) 14 . Januar y 200 4 Environmenta l Monitorin g Work Pla n (GZA ) 15 . Januar y 200 4 Operatio n an dMaintenanc e Pla n (GZA ) 16 . Jul y 200 4 Draf

t Phas e I I Ecologica l an dHuma n Health Ris k Summary Report

(Tetr aTec h FW ) 17 . Decembe r

200 4 Operatio n & Maintenanc e Pla n (GZA ) 18 . Decembe r

200 4 Five-Year

Revie w Report

(USACE/EPA ) 19 . Febmar y 200 5 Explanatio n o f Significan t

Difference s (EPA ) 20 . June/Jul y 200 5 28 * Groundwate r Monitorin g Report

(USACE/Tetr aTech ) 21 . Januar y 200 6 Annua l Monitorin g Report (GZA ) 22 . Januar y 200 7 Annua l Monitorin g Report (GZA ) 23 . Januar y 200 8 Aimual Monitorin g Report (GZA ) 24 . Marc h 200 8 Revise dWork Pla n Fo r Redevelopmen t

(GZA ) 25 . Marc h 200 8 Gran t

o f Environmenta l Restrictio n an dEasemen t (MassDEP ) 26 . Januar y 200 9 Annua l Monitorin g Report (GZA ) 27 . Marc h 200 9 Notic e o f Righ t o f Acces s an dDeclaratio n o f Covenants, Conditions , an d Restriction s containe di n Consen t Decre e i n Unite dState s an dth e Commonwealth o f Massachusett s v . Tow n o f Norwoo d 28 . Septembe r

200 9 Fina l Close-Ou t

Report (EPA ) 

### 6. 4 DAT A REVIE W 6.4. 1 Groundwate rMonitorin g Dat a Quarterl y groundwate r

monitorin g continue dthroughou t th e operatio n o f

th e groundwate r

treatmen t system . I n Jun e 2000 , th e groundwate r treatmen t

syste mwa s shu t

down , however , quarterl y groundwate r monitorin g continue dfor tw o year s beyon dth e syste mshutdown . Th e las t comprehensiv e groundwate r monitorin g wa s complete di n Jun e 200 5 (th e 28 * monitorin g round) . Th e 28 * quarterl y groundwate r monitorin g roun dinvolve dth e collectio n an danalysi s o f sample s from thirty-on e monitorin g wells , nin e extractio n wells , an dthre e surfac e wate r sampl e locations . Groundwate r

gaugin g round s continu e t o indicat e eas t t o northeas t

flow i n th e overburde n aquife r an d eas t with asoutheas t

componen t

i n th e bedroc k

aquifer . Th e result s reveale dn o contaminan t exceedin g th e revise dgroundwate r

clean-u p goals , whic h subsequentl y allowe dEP A t o decommissio n th e GWTP . I n addition t o th e las t

comprehensiv e round , th e Settlin g Defendant s continu e t o collec t bi-annua l

6- 2Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 groundwate r

dat aa s pe r

th e final Cap an dCove r O& M Plan . Thes e result s ar e reporte di n annua l monitorin g report s whic h hav e als o demonstrate dtha t clean-u p goal s ar e bein g met . A summary o f highes t detecte dconcentration s o f contaminant s i n groundwate r ove r th e las t 5 year s i s give n i n Tabl e 6 - 1 . It shoul db e note dthat

redevelopmen t

too k plac e betwee n th e Sprin g an dFal l 200 8 monitorin g rounds . Th e mos t recen t groundwate r

dat a(Fal l 2008 ) reflect s th e conditio n o f groundwate r

post-redevelopment . Sampl e result s from200 9 ar e jmticipate di n January 2010 . Al l o f contaminant s i n groundwate r (for whic h ther e wa s aROD-specifie dclean-u p goal ) continu e t o mee t thei r revise dclean-u p goals . 

### 6.4. 2 Surfac e Water/Sedimen t Surfac e wate r

an dsedimen t

sample s ar e collecte devery 2 yccirs a s pe r th e approve dEMP . Durin g thi s five-year revie w period , sample s wer e collectio n i n 200 6 an d2008 . Durin g eac h samplin g event , thre e sample s wer e collecte d(on e eac h fromnorthwes t come r ofth e property , th e mid-poin t o f Meado w Broo k an dfromth e broo k

jus t prio r t o th e Dea n Stree t

culvert) . Th e maximu mconcentratio n detectio n i n sedimen t wer e 0.2 1 an d0.4 8 pp mo f PCB s i n 200 6 an d2008 , respectively . I n regard s t o surfac e water , thre e sample s wer e collecte ddurin g eac h ofth e event s an dn o PCB s wer e reporte d(typica l reportin g limi t 0. 5 ug/L) .

6-3'Norwoo dPCB s Superfijn dSit e Five-Year Revie w Report Decembe r 200 9

Contaminant s o f Potentia l Concer n Volatil e Organi c Compound s (VOCs ) 1,2,4-Trichlorobenzen e 1,2,3 - Trichlorobenzen e 1,2 - DIchlorobenzen e 1,3 - Dichlorobenzen e 1,4-Dlchlorobenzen e Tota l 1,2-Dichloroethene s 1,1 - Dichloroethen e 1,1 - Dichloroethan e Chlorobenzen e Tetrachloroethen e Trichloroethen e tert - Buty l alcoho l (TBA ) Aceton e 1,2,4-Trimethylbenzen e Tetrahydrofura n Viny l Chlorid e Maxi m Site-Specifi c RBA L (UQ/I ) 34,00 0

4,60 0 3,660,00 0

37,00 0 108,00 0

310,00 0 Tabl e 6- 1

u m Observe d Groundwate rAnalytica l Result s (200 5 - 2008 ) 200 5 Groundwate rData * Jun-0 5 (ufl/l ) 1,50 0 N D N D N D 2 5 42 0 N D N D N D 5 8 2,10 0 N D N D N D N D 12 0 Nov-0 5

(ug/l ) 49 0 N D N D N D 9 6 36 9 N D N D N D N D 1,80 0 N D N D N D N D 9 9 200 6 Groundwate rDat a

1-May-0 6 17-Nov-0 6 (ug/l ) 67 0 N D N D N D 7 8 44 8 N D N D N D N D 1,10 0 N D N D N D N D 7 6 (ug/l )

85 0 N D N D N D 3 6 46 8 N D N D N D N D 1,10 0 N D N D N D N D 7 5 200 7 Groundwate rDat a

25-Jun-0 7 (ug/l ) 1,31 3 37 3 3 1 5 4 7 4 51 4 6. 8 1 0 18 7 N D 1,92 2 N D N D N D N D 13 1 Nov/De c 200 7

(uq/l ) 6 9 1 7 N D 2 0 2 2 51 8 7. 3 N D 26 0 N D 25 0 5 1 N D N D N D 9 1 200 8 Groundwate rDat a

10-Apr-0 8 (ug/l ) 9 2. 7 5. 3 2 7 3 9 460. 4 6. 4 N D 10 0 3. 3 8 4 N D 6 5 N D N D 9 0 13-Nov 0 8 (ug/i ) 98 0 23 0 1 9 8 9 7 2 103. 6 1 5 N D 13 0 1 1 97 0 N D N D 1. 2 1 1 6 1 Polychlorinate d Biphenyl s (PCBs )

Tota l PCB s Well s exceedin g PC B RBALs ^ 4. 3

4. 3 3 0

ME-17(B 4 ) 16. 8

ME-17(B-4 ) 8. 6

MW-1A , ME 17(84 ) 1 3

ME-17(B-4 ) ,B-2 8 34. 4

MW-1A , ME 17(B4 ) 61. 5

ME-17(B-4) , MW-2A , MW-1 A 3 9 MW-1A , ME-17(B4 ) 5. 6

MW-1 A *Las t comprehensiv e roun d o f samplin g (3 1 well s 9 EW ) ^ Whil e a n RBA L fo rPCB s wa s calculated . I t wa s no t adopte d i n th e 200 5 ES D a s a "clean-u p goal " pe rse . Th e RO D acknowledge d restoratio n o f PCB s i n groundwate ra s "technicall y impracticable " and , therefore , Identifie d institutiona l control s a s th e mean s b y whic h exposur e t o PCB s woul d b e controlled .Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

### 6.4. 2 Ris k

Assessmen t Dat a A Groundwate r

Ris k Assessmen t

wa s complete di n 199 8 that evaluate dhuma n health exposur e t o chemical s tha t

ma y volatiliz e fromgroundwate r int o indoo r

ai r o f apropose dbuildin g a s wel l a s evaluate decologica l risks associate dwith groundwate r discharg e t o Meado w Brook . A Supplementa l Ris k

Assessmen t

wa s complete di n 200 0 b y Foste r Wheele r a s a n updat e t o th e 199 8 Groundwate r

Ris k Assessmen t

(Foste r Wheeler , 2000) . Th e Supplementa l Ris k Assessmen t

consiste do f ahuma n health ris k

assessmen t

an dascreenin g leve l ecologica l risk assessment . Th e huma n health ris k assessmen t

focuse do n potentia l inhalatio n o f compound s volatilize dfro mcontaminate dsubsurfac e soil s an dgroimdwate r

i n afuture commercia l building . Th e screenin g leve l ecologica l risk assessmen t

focuse d o n th e potentia l impact s o f th e discharg e o f

contaminate dgroundwate r t o th e Meado w Brook . Th e assessmen t

indicate dthat

contribution s t o th e projecte dcarcinogeni c risk fro mth e subsurfac e soi l an d groundwate r

excee dth e targe t

value s for

eac h sourc e mediu mseparately . Th e risk driver s wer e viny l chlorid e an dtrichloroethen e i n groundwate r an dtrichloroethen e an dmethylen e chlorid e i n subsurfac e soil . A n assessmen t

o f potentia l indoo r

inhalatio n risks unde r

fiiture condition s assumin g th e shutdow n o f th e groundwate r

treatmen t

syste mwa s als o performed . Th e projecte drisk an dhazar dresult s wer e generall y similar

t o th e curren t

condition s scenari o with somewhat highe r risk an dhazar dlevels . Th e huma n health risk

assessmen t

conclude dtha t

apossibl e unacceptabl e risk exist s fro mth e inhalatio n o f volatile s fromgroundwate r an dsubsurfac e soil s an dengineerin g control s ma y b e necessary i f th e us e o f th e propert y change s and/o r ne w stmcture s wer e built . Th e screenin g leve l ecologica l risk assessmen t indicate dn o apparen t

risk t o recepto r

specie s base do n th e availabl e dat aan dbenchmark criteria . I n 2002 , Foste r

Wheele r complete dan Amendmen t t o th e Supplementa l Ris k Assessment . Th e Amendmen t

addresse dth e potentia l exposure s o f afiiture constmctio n worke r t o contaminate d groundwater . Th e result s indicate dthat th e hazar dinde x exceede dth e MassDE P targe t leve l an dth e calculate dcarcinogeni c risk slightl y exceede dth e MassDE P targe t leve l for

ahypothetica l future constmctio n worke r

expose dt o th e Sit e groundwater . Thes e result s wer e base do n an assumptio n o f repetitiv e derma l an dinhalatio n exposur e ove r th e cours e o f

typica l buildin g constmctio n Th e elevate d risk an dhazar dinde x result s relativ e t o th e MassDE P targe t level s ar e essentiall y th e resu h o f th e detecte dAroclo r

compound s i n groundwate r an dth e potentia l direc t

contac t exposur e route . Thus , an y future excavatio n activitie s woul dlikel y requir e appropriat e Health an dSafet y trainin g an dPersona l Protectiv e Equipmen t

(PPE ) t o minimiz e risk

t o constmctio n worker s an db e conducte di n complianc e wit h applicabl e law s an dregulation s an dth e institutiona l control s for th e site . I n Marc h 2003 , Foste r

Wheele r Environmenta l Corporation , subsequentl y performe daSupplementa l Ris k Analysi s for

th e Sit e an ddevelope dne w groundwate r clean-u p goal s [o r

Risk-Base dActio n Level s (RBALs) ] i n ligh t

o f MassDEP' s "lo w us e an dvalue " determination . Th e result s ar e summarize di n a Marc h 200 3 Technica l Memorandum . Th e actio n level s wer e develope dt o reflec t th e protectio n o f ecologica l receptor s associate dwit h th e aquati c habitat s o f Meado w Broo k

an dit s associate driparian communitie s adjacent

t o th e Site . Maximu mconcentration s o f VOC s an dsemi-volatil e organi c compound s (SVOCs ) i n groundwate r hav e al l bee n consistentl y belo w th e RBAL s wit h aconsiderabl e margin . Thes e RBAL s wer e documente da s th e ne w groundwate r clean-u p goal s i n th e 200 5 ESD . Thi s ris k analysi s raise dsom e concem s abou t th e remaining PC B contaminatio n i n groundwate r an dh s impact s o n Meado w Brook . Th e RBA L ha s bee n me t for PCB s i n al l well s adjacent t o Meado w Brook . Surfac e wate r

Ambien t Wate r Quality Criteri a(AWQCs) ' for PCB s wa s exceede da

t th e midstrea man d downstrea mstation s i n th e 26 * samplin g round . Th e Technica l Memorandu mrecommende dtha t th e detection s o f

PCB s i n surfac e wate r

o f Meado w Broo k

shoul db e fiirther

investigate dan dasecon dphas e ("Phas e II" ) o f

investigatio n wa s initiated .

' No w calle d"Nationa

l Recommende

dWate r Quaht y Criteri a("NRWQC" ) (40 C.F.R . § 122.44) .

6- 5Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report Decembe r 200 9 I n Jul y 2004 , Tetr aTec h F W prepare daDraf t Phas e I I Ecologica l an dHuma n Health Ris k Summar y Report a s part o f Phas e I I fieldinvestigation s for Meado w Broo k

at th e Site . Th e Phas e I I investigatio n wa s t o asses s PC B impact s fromth e Sit e t o Meado w Broo k an dt o examin e sedimen t PC B distributio n downstrea mo f

th e Site . Th e report

conclude dthat

existin g condition s an dlevel s o f contaminant s presen t i n Meado w Broo k

d o no t presen t arisk t o huma n healt h o r

th e environment . N o unacceptabl e huma n health risk s wer e indicate db y th e groundwate r dat arelativ e t o curren t

o r projecte dfuture lan duse . A possibl e huma n healt h concer n associate dwith long-termdirec t contac t exposur e t o soi l wa s indicate da t discret e location s off-site an ddow n strea mofth e site , adjacen t t o th e Neponse t

River . Additiona l off

propert y sample s wer e collecte dan dexposur e poin t concentration s (EPC ) calculate d( 3 ppm) ; thi s valu e wa s les s tha n th e residentia l surfac e soi l clean-u p goal specifie di n th e RO D (1 0 ppm) . N o huma n health concem s relatin g t o sedimen t sample s take n fro mMeado w Broo k an dth e Neponse t

Rive r wer e indicated . Base do n thi s data , an dth e 198 9 RO D determinatio n tha t i t wa s technicall y impracticabl e t o reduc e PC B concentration s i n groundwate r t o health-base dlevels , n o groundwate r clean-u p leve l for

PCB s wa s establishe db y th e RO D o r th e ESD . An y secondar y ris k t o huma n healt h fro mexposur e t o PC B contaminatio n o n th e sit e (i n soi l o r groundwater ) wil l continu e t o b e controlle dvi ainstitutiona l controls . Periodi c surfac e wate r an dsedimen t

monitorin g i n Meado w Broo k ha s bee n (an dwil l continu e t o be ) collecte dt o evaluat e long-ter mcomplianc e wit h NRWQC s an dth e protectio n o f th e envirormient . 

### 6. 5 SIT E INSPECTIO N Th e Five-Year

Revie w Sit e Inspectio n t o asses s th e protectivenes s o f th e remedie s wa s conducte do n Jul y 8 , 2009 . Th e inspectio n wa s conducte db y Danie l Keef e an dShamu s Keohan e (USEPA) ; an dAlbert Ricciardelli , Senio r

Principa l (GZ A GeoEnvironmenta l Inc.) . Tabl e 6- 2 provide s asummary o f th e Sit e component s that wer e inspecte dan dabrie f descriptio n o f findings . Issue s an drecommendation s ar e further discusse di n Sectio n 8.0 . Photo s ca n b e foun di n Appendi x D . 

### Tabl e 6- 2 Sit e Investigatio n Summary Acces s an dSite Road s Detentio n Basi n (alon g Meado w Brook ) Detentio n Basi n Sid e Slope s

Cap an dCove r Are a Th e road s an dparkin g lo t appear t o b e i n goo dshape . Th e Dea n St . acces s road s appear t o b e use dregularly , bu t

th e parkin g lo t

ha s Httle us e becaus e ther e ar e presentl y n o commercia l tenants . Th e detentio n basi n ha dsom e wate r i n it , du e t o th e significan t rain s durin g Sprin g 2009 . Ther e wa s som e overgrowth i n th e basin , bu t durin g th e sit e inspection , landscaper s hire d b y th e propert y owne r

arrive dt o mo w th e are aa s see n i n photograph s 13-14 . Th e slope s alon g th e interio r ofth e basi n wer e i n goo dcondition . Ther e wa s n o expose d geotextil e fabri c an dth e weir s appeare dt o b e i n goo dshape . Th e outsid e slop e ofth e basin , slopin g dov mt o th e Meado w Broo k howeve r wa s considerabl y overgrown . Larg e shrub s an dsom e youn g tree s hav e take n root . Th e asphal t

parkin g lo t

ove r th e cap appeare dt o b e i n goo dcondition . N o crack s o r othe r structura l damag e wer e noted .

6- 6Norwoo dPCB s Superfun dSit e

Five-Year Revie w Report Decembe r 200 9 

### Tabl e 6- 2 Sit e Investigatio n Summary Cap Are aUs e Monitorin g Well s

Meado w Broo k Th e parkin g lo t an dadditiona l utilitie s suc h a s ligh t post s appeare di n goo dcondition . Th e monitorin g well s wer e foun dt o b e unlocke dan deasil y opened . Se e photo s 22-23 . Thi s conditio n wa s reflectiv e mor e s o recen t relocatio n o f

well s (du e t o redevelopment ) an di s containe da s on e o f th e redevelopmen t

punc h lis t

items . Ther e wa s som e debri s suc h a s atir e an da n ol dshoppin g cart

foun di n th e broo k

that coul d imped e flo w a s organi c debris , suc h a s log s an dleave s pil e up . Se e photograph s 17-18 .



### 6. 6 INTERVIEW S EP A conducte dinterview s o f owner s an dbusinesse s adjacen t t o th e Site , an do f

loca l an dStat e officials . Th e objectiv e o f

th e informal interview s wa s primaril y t o obtai n genera l informatio n an dt o update curren t understandin g o f

activitie s a

t th e Site . A fe w abuttin g businesse s wer e visite do n Jul y 8 , 2009 . Durin g thes e visits , abutter s wer e give n abrie f summary o f

th e event s a

t th e sit e ove r

th e pas t 5 year s an dasurve y questionnaire . Th e followin g abuttin g businesse s wer e visited : Neponse t Valle y Chil dCare , Advanc e Aut o Parts , Walgreens , an dDirec t Tire . Durin g thes e interviews , non e o f th e abutter s raise dan y concem s abou t th e site ; the y wer e give n a questiormair e an dcontac t informatio n shoul dan y concem s aris e a t afuture time . I n additio n t o th e abuttin g businesses , intervie w question s wer e provide dt o th e othe r projec t stakeholder s including : Albert

Ricciardelli , Senio r

Principa l o f

GZ A GeoEnvironmenta l Inc , o n behal f o f th e Settlin g Defendants ; Stev e Costello , Director o f Community Plannin g an dEconomi c Development , Tow n o f Norwood ; Jo e Laham , th e owne r o f th e former

facilit y property ; an dJi mGrafrneyer , Tod dHamula , an d Pau l Dansczak

representin g Developer s Diversifie dRealty , th e redevelopin g company ; an dDav e Buckle y for MassDEP . Ou t o f al l thes e interviewees , n o majo r concem s wer e identified . Th e consensu s wa s that th e constmctio n wa s aver y successfli l projec t conducte dwith th e coordinatio n o f al l th e parties . Stev e Costello , representin g th e Tow n o f Norwood , ha dthi s t o say abou t th e Remedia l Action s at

th e site :

" I thin k th e EP A an dDE P hav e don e an outstandin g jo b i n assistin g th e Tow n wit h rehabilitiatio n o f

thi s site . Ther e wer e absolutel y n o issue s wit h th e Tow n o r abuttin g neighbor s becaus e th e EP A an dth e develope r agree dt o aWor

k Pla n with Remedia l Action s [completed ] prio r t o constmction . Thi s Wor k Pla n addresse dth e Town' s primar y concern.. . and , i n m y opinion, th e final developmen t i s very protectiv e o f

huma n health an dth e environment. " Additiona l intervie w note s ar e provide di n Appendi x C .

6- 7Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## 7. 0 TECHNICA L ASSESSMEN T 7. 1 QUESTIO N A : I S TH E REMED Y FUNCTIONIN G A S INTENDE D B Y TH E DECISIO N DOCUMENTS ? Yes , th e revie w o f

documents , ARARs , an dth e result s o f th e Jul y 200 9 sit e mspectio n indicat e that th e remed y i s operatin g an dfimctionin g a s designed . Base do n observation s durin g th e sit e inspection , th e R A ha s bee n determine dt o b e performin g a s expected . Th e successfu l completio n o f redevelopmen t

at th e sit e create dadditiona l safet y control s t o ensur e th e succes s o f th e implemente dremedy . Th e ca p wa s give n additiona l coverag e with th e constmctio n o f th e parkin g lot , an dth e passiv e vapo r mitigatio n syste minstalle dunde r

th e retai l building s ensur e th e safet y ofth e occupants . Indicator s o f

potentia l issue s pointin g t o afailm g remed y woul db e ca p erosio n o r

disturbance , increase d contaminan t

concentration s i n groundwater , o r increase dcontaminan t

concentration s i n Meadow Brook . Continue dmonitorin g o f groundwater , a s wel l a s Meado w Broo k surfac e wate r

an dsediment , wil l b e critica l i n evaluatin g th e functionality an dprotectivenes s ofth e remedy . Institutiona l control s hav e bee n recorde do n th e bot h th e former facility an dMeado w Broo k propertie s tha t wil l ensur e th e remed y remain s protectiv e i n th e future . A Gran t o f Environmenta l Restrictio n an d Easemen t wa s recorde dbetwee n th e property owne r (Jo e Laham ) an dth e Commonwealth , represente db y th e MassDEP . I n addition aConsen t Decree , whic h include s aNotic e o f Righ t o f Acces s an dDeclaratio n o f Covenants , an dRestriction s wa s recorde di n th e Norfol k Count y Registry o f

Dee db y th e Tow n for

th e Meado w Broo k

Parcel . 

### 7. 2 QUESTIO N B : AR E TH E EXPOSUR E ASSUMPTIONS , TOXICIT Y DATA , CLEAN-U P LEVELS , AN D REMEDIA L ACTIO N OBJECTIVE S USE D A T TH E TIM E O F REMED Y SELECTIO N STIL L VALID ? Soi l an dSedimen t Soi l an dsedimen t

standard s identifie di n th e 198 9 RO D wer e update di n th e 199 6 RO D amendment . Thes e standard s hav e no t bee n revise dsinc e th e amende dRO D an dther e ar e n o newl y promulgate d standard s that

cal l int o questio n th e protectivenes s o f th e remedy . Intensit y an dfrequenc y o f us e o f th e Sit e ha s change dsinc e th e las t Five-year

revie w a s aresul t

o f redevelopment . EP A reexamine dexposur e pathway s i n it s revie w o f th e RWP . Du e t o concem s abou t vapo r intmsio n int o indoo r

air , apassiv e vapo r

mitigatio n syste mwa s require dan dinstalle di n eac h ofth e commercia l building . Se e Photograph s 5 & 7 . A s require di n th e RWP , pos t constmctio n an dprio r

t o occupancy , sub-sla

b ai r sample s wer e obtaine dan analyze dan darisk assessmen t

completed . Th e assessmen t

conservativel y assume dthat th e exposur e populatio n woul db e residential . Base do n thi s analysis , th e risks wer e foun dt o b e acceptabl e (les s tha n 1 x 10"^) . I n th e fiiture , a s necessary an dpendin g future monitorin g results , th e sub-slab ventilatio n system s ca n b e mad e t o b e activel y vente dwith th e additio n o f

blower s o r

vacuu mpumps . Groundwate r Th e aquife r

beneath th e sit e i s n o longe r classifie da s acurren t

o r potentia l futur

e drinkin g wate r

suppl y b y th e Commonwealth . Therefore , Maximu mContaminan t Level s (MCLs ) promulgate dunde r th e Saf e Drinkin g Wate r

Act , an dMassachusett s Drinkin g Wate r Standard s ar e n o longe r applicabl e an dwer e remove da s ARAR s b y th e 200 5 ESD . A s aresul t ofth e revise daquife r

classificatio n an dadditiona l risk

7- 1Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 assessmen t

activities, th e USEP A calculate drevise dgroundwate r clean-u p goal s (i.e. , RBALs ) whic h wer e documente di n a200 5 ESD . Thes e clean-u p goal s hav e bee n an dar e currentl y bein g met . 

### 7. 3 QUESTIO N C : HAS AN Y OTHE R INFORMATIO N COM E T O LIGH T THA

T COUL D CAL L INT

O QUESTIO N TH E PROTECTIVENES S O F TH E REMEDY ? N o newl y identifie dhuma n healt h o r ecologica l risks hav e bee n identifie dt o date . N o othe r informatio n ha s com e t o ligh t

sinc e th e Jul y 200 9 sit e inspectio n tha t coul daffec t

th e protectivenes s ofth e remedy . 

### 7. 4 ARAR S REVIE W A revie w o f

ARAR s wa s conducte dt o evaluat e whethe r th e RA s ar e protectiv e o f huma n health an dth e environment . Th e revie w accounte dfor update dregulator y standard s promulgate dsinc e th e ROD , amende dRO D an dES D wer e issued . A n analysi s o f

newl y promulgate do r modifie drequirement s o f Federa l an dStat e environmenta l regulation s wa s conducte dt o determin e i f thes e ne w ARAR s chang e th e protectivenes s o f th e remedy . Th e evaluatio n include s adeterminatio n o f whethe r th e regulatio n i s currentl y an ARA Ro r TBC , an d whethe r th e remediation , a s planne di n th e ROD , amende dROD , an dESD , woul db e i n complianc e with th e requirements . Action- , location- , an dchemical-specifi c requirement s ar e tabulate dan dlocate di n Appendi x B o f

thi s report . Th e standard s revie w wa s base do n th e revie w o f USEPA-provide ddocuments , a s wel l a s publishe d Federal , State , an dlocal mle s an dregulations . Recommendation s ar e mad e a s t o whethe r an y change s t o th e lis t o f contaminant s o f

conce mnee dt o b e made . Unde r Sectio n III . A o f

Attachmen t

I "Explanatio n o f Five-Year

Revie w Policy " t o OSWE RDirectiv e 9355.7-02 , th e Commonwealth shoul db e requeste dt o identif y Stat e ARAR s promulgate do r modifie dsinc e th e ROD , amende dROD , an dES D wer e signed , whic h ma y hav e abearin g o n th e protectivenes s o f th e remedy . Accordin g t o th e MassDEP , a s o f thi s report , the y wer e no t

awar e o f

an y ne w o r

revise dStat e ARAR s affectin g th e protectivenes s o f th e Remedy . Fe w change s t o th e ARAR s hav e occurre dsinc e th e ES D wa s signed . Mos t locatio n an dactio n specifi c ARAR s currentl y appl y t o ongoin g monitorin g an dO& M activitie s rathe r tha n th e constmctio n activitie s discusse di n th e las t

Five-Year

Review . Tw o location-specifi c ARAR s regardin g federal protectio n o f wetland s an dprotectio n o f floodplain n o longe r

exis t a s promulgate dstandards . N o othe r substantive change s wer e identifie dfor ARAR s cite di n th e ESD . N o change s t o ARAR s hav e occurre dthat woul d affec t th e protectivenes s ofth e remedy .

7-2Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report Decembe r 200 9 

## 8. 0 ISSUE S Tabl e 8- 1 provide s asummary o f th e issue s identifie dat

th e Sit e durin g thi s Five-Year Review . Tabl e 8- 1 Issue s Issue s Th e O& M an dEM P plan s nee dt o b e update dt o accoun t for change s a s aresul t o f redevelopment . Punc h lis t item s associate dwith RW P hav e no t bee n completed , including , bu t

no t limite dto , th e installatio n o f cap benchmark s an d th e installatio n o f

protectiv e casin g aroun dvapo r samplin g points . Affect s Curren t

Protectivenes s (Y/N ) N N Affect s Futur e

Protectivenes s (Y/N ) Y YNorwoo dPCB s SuperfimdSit e

Five-Year Revie w Report Decembe r 200 9 

## 9. 0 RECOMMENDATIONS AN D FOLLOW-U P ACTION S Tabl e 9- 1 provide s recommende dfollow-u p action s for issue s discovere da

t th e Sit e durin g thi s Five-Year

Review . 

### Tabl e 9- 1

Recommendation s an d Follow-u p Action s Issu e O& M an dEM P plan s ou t o f dat e Punc h lis t

item s associate dwit h redevelopmen t incomplet e Recommendation s an d Follow-u p Action s Develope r

t o amend , a s pe r

th e approve dRedevelopmen t Work Plan , th e existin g fina

l O& M an dEMP . Develope r

t o complet e miscellaneou s item s a s describe di n th e approve dWor k Pla n for Redevelopment . Party Responsibl e Develope r Develope r Oversight

Agenc y USEP A

USEP A Milestone

Dat e Sprin g 201 0 Sprin g 201 0 Affect

s Protectivenes s (Y/N ) Curren t N

N Futur e

Y

Y

9- 1Norwoo dPCB s Superfijn dSit e

Five-Year Revie w Report

Decembe r 200 9 

## 10. 0 PROTECTIVENES S STATEMENT S 10. 1 PROTECTIVENES S Th e remed y a

t Norwoo dPCB s Superfun dSit e protect s huma n healt h an dth e environmen t becaus e clean

u p goal s ar e bein g me t

an dinstitutiona l control s hav e bee n recorded . Th e Lahampropert y ha s bee n redevelope dan dconsist s o f tw o (2 ) ne w building s totalin g 56,00 0 squar e feet o f commercial/retai l space . Grave l an dasphal t

wer e adde dt o th e Remedia l Ca p thereb y increasin g it s protectiveness . T o b e ensur e protectivenes s i n th e future , th e O& M an dEM P plan s need s t o b e updated , punc h lis t item s associate d with th e redevelopmen t

nee dt o b e completed .

10 -Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## 11. 0 NEX T REVIE W I n accordanc e with th e Jun e 200 1 Comprehensiv e Five-Year Revie w Guidance , th e fourt h Five-Year Revie w wil l b e du e five year s fromth e signatur e dat e o f thi s (third ) Five-Year

Review .

11

-Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 

## 12. 0 REFERENCE S 1 . Foste r Wheele r Environmenta l Corporation , 2000 . Fina l Supplementa l Ris k Assessment , Norwoo d PC B SuperfimdSite . Apri l 2000 . 2 . Foste r

Wheele r Environmenta l Corporation , 2000 . Fina l Interi mRemedia l Actio n Report for th e Norwoo dPC B SuperfimdSit e Groundwate r Treatmen t

Plant . Augus t

2000 . 3 . Foste r

Wheele r Environmenta l Corporation , 2002 . Fina l Amendmen t t o th e Supplementa l Ris k Assessment , Norwoo dPC B Superfun dSite . Ma y 2002 . 4 . Foste r

Wheele r Environmenta l Corporation , 2003 . Fma l Technica l Memorandum , Developmen t o f Risk-Base dActio n Level s for th e Protectio n o f

Ecologica l Receptor s for Contaminant s o f

Potentia l Conce mi n th e Groundwate r a t th e Norwoo dPC B SuperfimdSite . Marc h 2003 . 5 . GZ A Ge o Environmental , Inc. , 2003 . Soil/Broo k Remedia l Constmctio n Report . Septembe r 2003 . 6 . GZ A Ge o Environmental , Inc. , 2004 . Operatio n an dMaintenanc e Plan , Norwoo dPC B Superfun d Site . Januar y 2004 . 7 . GZ A Ge o Environmental , Inc. , 2008 . Revise dWork Pla n for Redevelopment , Norwoo dPC B SuperfimdSite . Marc h 2008 . 8 . GZ A Ge o Environmental , Inc. , 2007 . Annua l Monitorin g Report for 2006 , Norwoo dPC B Superfun d Site . Januar y 2007 . 9 . GZ A Ge o Environmental , Inc. , 2008 . Annua l Monitorin g Report for 2007 , Norwoo dPC B Superfun d Site . Januar y 2008 . 10 . GZ A Ge o Environmental , Inc. , 2009 . Annua l Monitorin g Report for 2008 , Norwoo dPC B Superfimd Site . Januar y 2009 . 11 . GZ A Ge o Environmental , Inc. , 2004 . Environmenta l Monitorin g Work Plan , Norwoo dPC B Superfim dSite . January 2004 . 12 . GZ A Ge o Environmental , Inc. , 2004 . Operatio n an dMaintenanc e Plan , Norwoo dPC B Superfimd Site . Decembe r

2004 . 13 . Laham , Joseph . 200 8 Gran t o f Environmen t

Restrictio n an dEasemen t fromJosep h Laham(Grantor ) t o Commonwealth o f

Massachusett s (Grantor) , [date ] 14 . Massachusett s Departmen t o f Environmenta l Protection , 2001 . Groundwate r Us e an dValu e Determination . Ma y 11 , 2001 . 15 . Nobi s Engineerin g Inc . an dFoste r Wheele r Environmenta l Corporation , 2002 . 27 * Quarterl y Groundwate r

Monitorin g Report , Norwoo dPC B Superfun dSite , Norwood , Massachusetts , Octobe r 200 2 Samplin g Event . Marc h 4 , 2003 . 16 . Tetr aTec h FW , Inc. , 2004 . Draf t Phas e II Ecologica l an dHuma n Health Ris k Summar y Report , Norwoo dPC B SuperfimdSite . Jul y 2004 .

12- 1Norwoo dPCB s SuperfimdSit e

Five-Year Revie w Report

Decembe r 200 9 17 . Tetr aTec h FW , INC. , 2005 . Twenty-Eighth Groundwate r Monitorin g Report

Norwoo dPC B Superfun dSite , Norwood , MA . June/Jul y 2005 . 18 . Tow n o f

Norwoo dlette r

re : Maste r

Plan s 19 . U.S . Environmenta l Protectio n Agency , 1989 . USEP A SuperfimdRecor do f Decision , Norwoo d PCBs . Septembe r

29 , 1989 . 20 . U.S . Environmenta l Protectio n Agency , 1996 . USEP A SuperfimdRecor do f Decisio n Amendment , Norwoo dPCBs . Ma y 17 , 1996 . 21 . U.S . Environmenta l Protectio n Agency , 1999 . Preliminar y Close-Ou t Report . Septembe r

23 , 1999 . 22 . U.S . Environmenta l Protectio n Agency , 2009 . Fina l Close-Ou t Report . Septembe r

22 , 2009 . 23 . U.S . Environmenta l Protectio n Agency , 1999 . Five-Year Review , Norwoo dPC B Superfun dSite , Norwood , Massachusetts . Decembe r 1999 . 24 . U.S . Environmenta l Protectio n Agency , 2001 . Comprehensiv e Five-Year Revie w Guidance . U.S . Environmenta l Protectio n Agency , Offic e o f Emergenc y an dRemedia l Response . Jun e 2001 . 25 . U.S . Arm y Corp s o f Engineers , 2000 . Operatio n an dMaintenanc e Manual , Meado w Broo k Restoration , Norwood , Massachusetts . Jun e 2000 . 26 . U.S . Army Corp s o f Engineers , 2002 . Meado w Broo k Restoratio n Remedia l Actio n Report , Norwood , Massachusetts . January 2002 . 27 . U.S . Environmenta l Protectio n Agency , 2004 . Five-Year Review , Norwoo dPC B Superfim dSite , Norwood , Massachusetts . Decembe r 200 4 28 . U.S . Environmenta l Protectio n Agency , 2005 . Explanatio n o f Significan t

Difference s for

th e Norwoo dPC B SuperfimdSite . Norwood , Massachusetts . Febmar y 2005 .

12- 2mMltmmmfmi M t mnnfiiiM X

Norwoo dPCB s SuperfimdSit e Five-Year Revie w Report

Decembe r 200 9 

## APPENDI X A SIT E MAP S

# 1

# ^Mt^- "

t ^ 

# GZ V ' • '*-" " ^' " •^"* " •"' - jiZ . SOURC E SCANNE O USS S TCPOGI W :>HI C OUADRANSLE S SCANNE O S Y TH E MASSACHUSETT S BXBCijn m OFFtt * O F eN(VMOI*IEN^A L AJFFAlHf i IWIASSGI S OlSTHlBUTS a JL#J6 . JtWI .

^ S PSO J MG H 3B P DESlGr«£ 0 SV . D R OPeSATO R EM 3 QATE . 1 2 ia-2C0 S 

## LOCU S PLA N NORWOO D PC B SUPERFUN D SIT E NORWOOD . MASSACHUSETT S j O i NC . 0 ' 031860 5 00 1 F-IEURf e M O 

## 1U M < T Ll*r

- -W P •^T l V . 7V H 

# 1 1

.A- * 

### •Hi. ! 

# illll i

1S3M.S 0

## APPENDI X B TABLE S DOCUMENTIN G ARAR sAUTHORIT Y REQUIREMEN T

CHEMICA L SPECIFI C ARARs : Federa l Criteria , Advisories , an dGuidanc e Technica l Basi s for Derivin g Sediment Qualit y Criteri afor

Non-ioni c Organi c Contaminant s for

th e Protectio n o f

Benthi c Organism s Usin g Equilibriu mPartitionin g (EPA-822-R-93-011 ) Clea n Wate r

Ac t - Sec . 30 4 Federa l Ambien t

Wate r Quality Criteri a 3 3 us e 1314 ; 4 0 CF R122.4 4

EP A Carcinogeni c Assessmen t Grou p Potenc y Factor s

EP A Ris k Referenc e Dose s (RfDs ) STATU S REQUIREMEN T SYNOPSI S

T o b e Thi s guidanc e i s use dt o establis h criteri at o Considere dprotec t

th e aquati c organism s i n stream s an dt o determin e environmenta l risk withi n th e sedimen t

an dt o se t

sediment , cleanu p levels . Relevan t an dFedera l AWQ C ar e criteri afor protectio n o f Appropriat e huma n health an daquati c organism s whic h hav e

bee n develope dfor

carcinogeni c an dBroo k noncarcinogeni c compounds . AWQ C ar e develope dunde r th e Clea n Wate r

Ac t (CWA ) a s guideline s fromwhic h state s develo p wate r qualit y standards . T o b e Potenc y factor s ar e develope db y th e EP A ftom Considere dHealt

h Effect s Assessment s o r Evaluatio n b y th e Carcinogeni c Assessmen t Group . T o b e RfD s ar e doe s level s develope db y th e EP A fo r Considere dnon-carcinogeni c effects . ACTIO N TAKE N T O ATTAI N ARAR s Th e criteri aestablishe dwer e use dt o evaluat e risks t o aquati c organism s expose dt o contaminate dwate r entraine d AWQ C wer e use dt o characteriz e risks t o fres h wate r

aquati c lif

e i n Meado w Broo k

EP A Carcinogeni c Potenc y Factor s wer e use dt o complet e th e individua l incrementa l cance r

risk resultin g from exposur e t o sit e contaminants . EPA RfD s wer e use dt o characteriz e risks du e t o exposur e t o contaminant s o n site . LOCATIO N SPECIFI C ARAR s Federa l Regulator y Wetland s Executiv e Orde r (E O 11990 ) Applicabl e 4 0 CF RPar

t 6 , Appendi x A Unde r this regulation . Federa l agencie s ar e require dt o minimiz e th e destruction , loss , o r degradatio n o f

wetlands , an dpreserv e an d enhanc e natura l an dbeneficia l value s o f wetlands . Any redevelopmen t o r O & M wil l includ e al l al l practicabl e mean s o f

minimizin g harmt o wetlands . Floodplain s Executiv e Orde r (E O 11988 ) Applicabl e 4 0 CF RPar

t 6 , Appendi x A

Clea n Wate r

Ac t (CWA ) - Sectio n 40 4 Applicabl e Dredg e an dFil l Requirement s (3 3 U.S.C . 1344 ; 4 0 CF RPar t 230 ) Federa l agencie s ar e require dt o reduc e th e risk o f floo dloss , t o minimiz e th e impac t o f floods , an dt o restor e an dpreserv e th e natura l an d beneficia l value s o f

floodplains . N o activit y tha t

adversel y affect s awetlan dshal l b e permitte di f

apracticabl e altemativ e tha t ha s les s effec t i s available . Th e remedia l actio n wa s designe dt o kee p al l activitie s ou t

o f th e floodplai n t o th e greates t

exten t practicable . Ongoin g monitorin g an dO& M activitie s i n an d adjacen t t o Meado w Broo k

o r an y othe r

Sit e wetland s wil l mee t

thes e standards . Fis h an dWildlif

e Coordinatio n Act 1 6 U.S.C . 66 1 Applicabl e Befor e undertakin g any Federa l actio n tha t cause s th e modificatio n o f

an y bod y o f

wate r o r affect s fis h an dwildlife . Federa l an dStat e fish an dwildlif e agencie s wil l b e consulte dconcernin g an y monitorin g an dO& M activitie s i n an dadjacen t

t o Meado w Brook .AUTHORIT Y REQUIREMEN T STATU S REQUIREMEN T SYNOPSI S ACTIO N TAKE N T O ATTAI N ARAR s Resourc e Conservatio n an dRecover y Ac t Relevan t

an d (RCRA ) Locatio n Standard s Appropriat e (4 0 C.F.R . 264.18 ) Thi s regulation outline s th e requirement s fo r constmctin g aRCRA facility o n a100-yea r floodplain . Hazardou s wast e dispose do f o r generate dwithi n th e floodplain o f

Meado w Broo k

wil l b e manage dt o preven t areleas e o f

hazardou s wast e i n th e event o f a floodevent . Stat e Regulatory Massachusett s Wetland s Protectio n Ac t Applicabl e (M.G.L . C.13 1 Sectio n 4 0 :310CMR10.00 ) Massachusett s Waterway s Regulation s Applicabl e (M.G. L c.21 . Section s 26-53 ; 31 4 CM R9.00 ) Thes e regulation s outlin e th e requirement s necessary t o wor

k withi n 100 feet

o f awetland . Regulate s wor

k withi n waterways , includin g wate r qualit y protection . Al l redevelopment , monitoring , o r O& M wor

k withi n area s regulate dunde r

thi s standar dwil l b e conducte d i n complianc e with thes e regulations . Al l redevelopment , monitoring , o r O& M wor

k withi n o r adjacen t t o Meado w Broo k

wil l compl y wit

h thes e standards . ACTIO N SPECIFI C ARAR s Federa l Regulatory Resourc e Conservatio n an dRecover y Ac t Requirements (RCRA ) Subtitl e C (4 0 C.F.R . 260-262 )

Toxi c Substance s Contro l Ac t (TSCA) , 1 5 use . § § 2601,e t

seq. , 4 0 C.F.R . 761.7 5 Applicabl e (fo r generate d wastes)/ ; Relevan t an d Appropriat e (fo r closure / pos t closure ) Applicabl e RCR A regulate s th e generation , transport ,

storage , treatment , an ddisposa l o f hazardou s Waste . CERCL A specificall y require s (i n Sectio n 121(d)(3 ) that

hazardou s substance s fromrespons e action s b e dispose do f a t facilitie s i n complianc e with Subtitl e C o f RCR A Establishe s standard s for

PC B landfills , includin g permittin g waiver s for

cla y soils , syntheti c liner , 5 0 feet t o wate r table , an dleachat e collectio n requirement s upo n afinding b y th e Regiona l Administrato r Waste s generate ddurin g monitorin g o r O & M activitie s wil l b e characterize d an dhandle di n accordanc e with applicabl e RCRA regulations . Waste s lef

t i n plac e unde r

th e cap wil l b e manage di n complianc e with closur e an dpost-closur e standards . Closure/pos t

closure s standard s (incorporatin g waiver s invoke dunde r

th e RO D amendment ) fo r th e cappe dPC B waste s wil l b e followed . Toxi c Substance s Contro l Ac t (TSCA) , (4 0 C.F.R . 760.60 ) Clea n Wate r

Ac t - Sec . 30 4 Federa l Ambien t

Wate r Quality Criteri a 3 3 us e 1314 ; 4 0 CF R122.4 4 Relevan t an d Appropriat e Establishe s treatmen t an ddisposa l standard s fo r PC B waste s generate da s par t o f redevelopment , monitorin g o r

O& M activities . AWQ C ar e develope dunde r th e Clea n Wate r

Ac t (CWA ) a s guideline s fro mwhic h state s develo p wate r qualit y standards . Treatmen t an ddisposa l standard s fo r PC B generate dwaste s wil l b e satisfied . AWQ C ar e use dt o monito r wate r qualit y i n Meado w Broo k

t o asses s th e protectivenes s ofth e remedy . Guid e o n Remedia l Action s a t SuperfimdT o b e Site s wit h PC B Contaminatio n (OSWE Rconsidere d Directiv e 9355.4-01 , Augus t 1990 ) Set s fort h guideline s fo r

implementin g remedia l action s for

PCB s Ongoin g monitorin g an dO& M activitie s will b e conducte dconsisten t

wit h th e goal s o f

this guidance . Stat e Regulatoo ' Massachusett s Groundwate r Protectio n Relevan t an d Requirements Regulation s Appropriat e 31 4 CM R6.0 0 Thes e regulation s establis h th e criteri afo r classifyin g groun dwate r

an dfor establishin g monitorin g standards . Groundwate r ha s bee n reclassifie da s Clas s III , designate dfo r

use s othe r

tha n a s asourc e o f

potable , wate r supply . Th e regulation s als o se t standard s tha t wil l b e use dfor

monitoring .AUTHORIT Y REQUIREMEN T Massachusett s Ambien t

Ai r Qualit y Standard s STATU S REQUIREMEN T SYNOPSI S Applicabl e Thes e regulation s specif y emission s standard s for particulate s an dlead . ACTIO N TAKE N T O ATTAI N ARAR s Al l redevelopment , monitorin g an dO& M activitie s wil l b e conducte di n amanne r t o minimiz e th e generatio n o f

dus t o r othe r hazardou s wastes . Massachusett s Ai r

PoJiutio n Contro l Regulation s 310C.M.R . 7.0 0 Applicabl e Massachusett s Hazardou s Wast e Regulation s Applicabl e 310C.M.R.30.0 0 Regulation s specifi c t o contro l o f odo r an d requirement s fo r

handlin g asbesto s waste s an d fugitiv e dus t

emissions . Regulafion s govemin g th e generation , treatment , storage , an ddisposa l o f

hazardou s waste . An y odor s an dfiigiti v e dus t generate db y O&M , redevelopment , an dmonitorin g wil l b e controlled , unde r thes e standards . Thes e regulation s wil l b e followe di n conductin g O&M , monitoring , an dredevelopmen t activities . Potion s o f

thes e regulations , whic h ar e specifi c t o on-sit e PCB s ar e no t

applicabl e sinc e PC B ar e adequatel y regulate dunde r TSCA . Massachusett s Hazardou s Wast e Regulation s Applicabl e 31 0 CMR . 30.125(b ) Requirements for Toxi c Characteristi c Leachin g Procedur e (TCLP) . Waste s generate dfor off-sit e disposa l i n conductin g O&M , monitoring , an dredevelopmen t activitie s wil l b e characterize dan dhandle di n accordanc e wit h thes e standards . Massachusett s Hazardou s Waste Regulation s Applicabl e 31 0 C.M.R . 30.30 2 Requirement s for an y generato r

o f awast e t o detemiin e i f

th e wast e i s hazardous . Waste s generate dfor off-sit e disposa l i n conductin g O&M , monitoring , an dredevelopmen t activitie s wil l b e characterize dan dhandle di n accordanc e wit

h thes e standards .

## APPENDI X C INTERVIE W NOTE S

### ^ ^

^ ^ \ UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y s ^S.2 ^

I Regio n 1 ^ ^^^ ^ I 1 Congres s Street , Suit e 110 0 %^**^ ^

BOSTON , M A 02114-202 3 ^ " i PROl*- ^ 

### Norwoo dPCB' s Sit e Interview s Name : Davi dBuckle y Title : Projec t Manage r Organization : MassDE P What i s you r relationshi p t o th e Norwoo dPCB s Site ? Projec t Manage r for th e Commonwealth o f

Massachusett s (actin g throug h MassDEP) . Ar e ther e an y issue s regardin g th e sit e that yo u woul dlik e t o brin g t o EPA' s attention ? Sit e remediatio n ha s bee n complete dt o MassDEP' s satisfaction . Also , redevelopmen t activitie s hav e bee n substantiall y complete dt o MassDEP' s satisfaction . Redevelopmen t activitie s hav e ha dt o necessaril y interac t with th e sit e remed y component s an dEPA , MassDEP , th e sit e owner , an ddevelope r hav e worke dclosel y t o se e th e tw o complemente deac h other . Redevelopmen t t o ashoppin g cente r

was abeneficia l us e that MassDE P believe s i s a

n overal l improvement . Ther e ar e anumbe r

o f mino r punc h lis t

item s whic h th e develope r ha s committe dt o completin g i n short

order . Som e o f

thes e item s ar e critica l t o th e lon g termprotectio n an dmonitorin g ofth e remed y includin g th e Gran t o f Environmenta l Restrictio n an d Easement . O f

critica l importanc e ar e installin g benc h mark s t o identif y th e critica l ca

p component s an dupdatin g th e as-buil t plan s t o reflec t

actual fieldconditions . D o yo u believ e that

th e complete dRemedia l Action s ar e protectiv e o f huma n health an d th e environment ? Yes , upo n completio n ofth e punc h lis t item s reference di n th e answe r t o questio n 1 above . D o yo u forese e an y issue s becomin g aproble maffectin g th e protectivenes s ofth e remed y i n th e future ? No , a s lon g a s th e variou s responsibl e partie s continu e t o maintai n th e remed y component s the y ar e responsibl e for . T o dat e thi s ha s no t bee n aproblem . D o yo u hav e an y othe r

questions , comment s o r

concems ? N o

### ^^

^ ^ % UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y S Regio n 1 o ^^^ ^

I 1 Congres s Street , Suit e 110 0 \^''~., ^

BOSTON , IVI A 02114-202 3 Norwoo dPCB' s Sit e Interview s Name : Albert

Ricciardell i Title : Senio r Principa l Organization : GZA GeoEnvironmental , Inc ^ What i s you r relationshi p t o th e Norwoo dPCB s Site ? Projec t Coordinato r

for Settlin g Defendant s Remedia l Actio n Ar e ther e an y issue s regardin g th e sit e that yo u woul dlik e t o brin g t o EPA' s attention ? N o D o yo u believ e that

th e complete dRemedia l Action s ar e protectiv e o f huma n health an d th e environment ? Yes D o yo u forese e an y issue s becomin g aproble maffectin g th e protectivenes s ofth e remed y i n th e future ? N o D o yo u hav e an y othe r

questions , comment s o r

concems ? Non e^,^<^^°^r .



### ^ ^ ^ ^ UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y s ^^***rf ^

1 Regio n 1 ^ ^^^ ^ I 1 Congres s Street , Suit e 110 0 V^^*^^ ^

BOSTON , M A 02114-202 3 ^-t t PROlt* ^ 

### Norwoo dPCB' s Sit e Interview s Name : Stev e Costell o Title : Directo r o f Community Plannin g an d Economi c Developmen t Organization : Tow n o f

Norwood What i s you r relationshi p t o th e Norwoo dPCB s Site ? Th e Norwoo dPlannin g Boar dissue dth e Special Permi t allowin g th e redevelopmen t o f thi s site . I a

mth e primar y contac t

for th e Board . Ar e ther e an y issue s regardin g th e site that yo u woul dlik e t o brin g t o EPA' s attention ? Non e a t thi s tim e D o yo u believ e that

th e complete dRemedia l Action s ar e protectiv e o f huma n health an d th e environment ? I thin k th e EPA an dDE P hav e don e a n outstandin g jo b i n assistin g th e Tow n with th e rehabilitatio n o f

thi s site . Ther e wer e absolutel y n o issue s with th e tow n o r abuttin g neighbor s becaus e th e EP A an dth e develope r agree dt o aWor

k Plan with Remedia l Action s prio r

t o constmction . Thi s Wor k Plan addresse dth e town' s primary conce m(i.e . d o no t distur b th e cappe darea ) and , i n m y opinion , th e final developmen t i s very protectiv e o f

huma n health an dth e environment . D o yo u forese e an y issue s becomin g aproble maffectin g th e protectivenes s ofth e remed y i n th e fiiture? Non e a t thi s tim e D o yo u hav e an y othe r

questions , comment s o r

concems ? Non e a t thi s tim e^''^'^^ \ UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y s »,^M ^

S Regio n 1 I . ^XiA ? ? 1 Congres s Street , Suit e 110 0 ^b^'"^sO ^

BOSTON , M A 02114-202 3 

### Norwoo dPCB' s Sit e Interview s Name : Ji mGrafineye r

Title : V.P . Developmen t Organization : Developer s Diversifie dRealty (DDR ) What i s you r relationshi p t o th e Norwoo dPCB s Site ? Lessee/Develope r Ar e yo u awar e ofth e pas t remedia l activitie s (capping , groundwate r treatment ) a

t th e Norwood PCB s site ? Ye s Ar e yo u awar e ofth e mos t recen t redevelopmen t

activitie s a

t th e Norwoo dPCB s site ? Yes D o yo u hav e an y question s o r concem s regardin g eithe r th e remedia l (i.e. . clean-up ) activitie s o r redevelopmen t

activitie s a

t th e Norwoo dPCBs ? N o D o yo u hav e an y recommendation s for th e USEP A regardin g thi s site ? N o

## APPENDI X D PHOTODOCUMENTATIO N

Photograp h 1 : Th e Redevelope dSit e (cap/parkin g lo t foreground/retai l building s background) .

D- 1Photograp h 2 : Retai l Buildin g A (lookin g toward s Rout e 1) .

Photograp h 3 : Retai l Buildin g B (lookin g toward s Meado w Brook) . D- 2

# ^^^^^^^^B . ! 

# 1

r

Photograp h 4 : Th e interio r o f Retai l Buildin g A .

Photograp h 5 ; Element s ofth e Passiv e Vapo r Mitigatio n Syste mi n Buildin g A . D- 3Photograp h 6 : Th e Liqui dBoo t '•' ^ Vapo r

Barrie r laye r whic h underlie s concret e slab.

Photograp h 7 : Roo f

penetratio n an dexhaus t

ven t t o passiv e Vapo r

Mitigatio n Syste m(Retai l Buildin g A) . D-4Photograp h 8 : Th e interio r o f Retai l Buildin g B .

Photograp h 9 : Element s ofth e Passiv e Vapo r Mitigatio n Syste mi n Retai l Buildin g B . D- 5Photograp h 10 : Th e Liqui dBoo t ^ ^ Vapo r

Barrie r laye r whic h underlie s concret e slab.

Photograp h 11 : Th e newly-constructe dparkin g lo t tha t overlie s th e Remedia l Cap . D- 6Photograp h 12 : Th e northwes t edg e ofth e parkin g lo t

an dpropert y botmdary with Kerr y Place .

Photograp h 13 : Detentio n basi n facin g Southeas t with maintenanc e crew s visible . D- 7Photograp h 14 : Ground s cre w maintainin g detentio n basin .

Photograp h 15 : Meado w Brook , lookin g facin g dow n strea m(Southeast) .

D- 8Photograp h 16 : Stro mdrai n poin t o f discharg e int o th e detentio n basin .

Photograp h 17 : Overgrowth o n slop e ofth e detentio n basi n alon g Meado w Brook .

D- 9

# r*'^ #

Photograp h 18 : Shoppin g cart discarde di n Meado w Brook .



## teSh o 

## ppe s 

# 01vya>;Parr]r| s f O R LEAS E 

# pBJ^ g ^•^ 1 HBH I • ^ H •IH I ^ ^ H 

# • • q •1 ^ 

# • • • •I^ H H H 

# • • Photograp h 19 : Sig n frontin g Rt . 1 . D-1 0Photograp h 20 : Th e mura l o n th e rear o f Retai l Buildin g A , a s viewe dfromRout e 1 (require db y th e Town o f Norwood) .

Photograp h 21 : Sub-sla

b sampling port s locate dalon g th e rea r o f Retai l Buildin g A

D-1 1Photograp h 22 : Sub-sla b sampling port s locate dalon g th e rea r o f Retai l Buildin g B .



### ^^^H^B^^rX'* ^

^Ki " .'j3^atS M 

# A 

# 1

« ! ' 

## 6 ^ •" ^ 

## ^•m k

c, . ^' v " 

# g ^

k

^ ^ • •'4.yf^;:,.';.;..;:», > ^ - • b .

^



# 0 ^ 

# :a-.< ^ 

# n •

^ 

# 4 

# 1 %lfiL . ri^-:".»m : WHt- ^



# - \'- f 

# r Photograp h 23 : Sub-sla

b samplin g port s locate dalon g th e rear o f Retai l Buildin g B .

D-1 2

## APPENDI X E SIT E INSPECTIO N CHECKLIST S

E- l

## Five-Yea rRevie w Sit e Inspectio n Checklis t

Norwoo d PCB s Superfun d Site , Norwood , Massachusett s I . SIT E INFORMATIO N Sit e name : Norwoo dPCB s Dat e o f Inspection : Jul y 8,200 9 Locatio n an dRegion : Rt . 1 an dDea n St , Norwood , Massachusetts , USEP A Regio n I EP A ID : MAD98067056 6 Agency , office , o r

compan y leadin g th e five-year review : USEP A Regio n I Weather/temperature : Partl y Cloud y ~ 7 0 F Remed y Includes : (Chec k al l that apply ) • Landfil l cover/containmen t n Acces s control s • Institutiona l control s D Groundwate r

pum p an dtreatmen t n Surfac e wate r

collectio n an dtreatmen t D Othe r D Monitore dnatura l attenuatio n D Groundwate r

containmen t D Vertica l barrie r

wall s

Attachments : D Inspectio n teamroste r attache d n Site ma p attache d II . INTERVIEW S (Chec k al l tha t apply ) 1 . O& M sit e manage r

Albert Ricciardell i Senio r Principal . GZ A Interviewe d Nam e

at sit e D at

offic e D b y phon e Phon e no . Titl e Dat e Problems , suggestions ; Report attache dIntervie w recor dattache d 2 . O& M staf

f Nam e Interviewe dD at

sit e D at

offic e D b y phon e Phon e no . Problems , suggestions ; Report attache d Titl e Dat e

E- 23 . Loca l regulator y authoritie s an drespons e agencie s (i.e. , Stat e an dTribal offices , emergenc y respons e office , polic e department , offic e o f publi c health o r

environmenta l health , zonin g office , recorde r o f deeds , o r othe r cit y an dcount y offices , etc. ) Fil l i n al l tha t apply . Agenc y Environmenta l Protectio n Agenc y Contac t Danie l Keef

e Nam e Titl e Problems ; suggestions ; D Report attache d Remedia l Projec t

Manage r 7-8-200 9 Dat e Agenc y Environmenta l Protectio n Agenc y Contac t Shamu s Keohan e Intern 7-8-200 9 Nam e Titl e Problems ; suggestions ; D Report attache d Dat e 617-918-132 7 Phon e no .

Phon e no . Agenc y Massachusett s Departmen t o f Environmenta l Protectio n Contac t Davi dBuckey t Projec t Manage r 12/0 9 617-556-115 6 Nam e Problems ; suggestions ; • Report attache d Titl e Dat e Phon e no .

4 . Othe r

interview s (optional ) • Report s attached . Jo e Laham- Sit e Owne r Stev e Costell o - Tow n o f Norwoo d Pau l Dansczak

- Developer s Diversifie dRealt y

E- 3III . ON-SIT E DOCUMENT S & RECORD S VERIFIE D (Chec k al l that apply ) 1 .

2 .

3 . 4 .

5 . 6 . 7 . 8 . 9 .

10 . O& M Document s • O& M manua l • Readil y availabl e • As-buil t

drawing s • Readil y availabl e n Maintenanc e log s D Readil y availabl e Remark s D 

## n n Site-Specifi c Healt h an dSafet y Pla n • Readil y availabl e • D Contingenc y plan/emergenc y respons e pla n D Readil y availabl e D Remark s Thi s H& S Plan s exis t fo r O& M an dRedevelopmen t activities . O& M an dOSH A Trainin g Record s • Readil y availabl e Remark s Permit s an dServic e Agreement s D Ai r discharg e permi t

D Readil y availabl e n Effluent

discharg e D Readil y availabl e D Wast e disposal , POT W D Readil y availabl e D Othe r permit s Dumpste r

fo r th e City D Readil y availabl e Remark s 

## •

D D D 

## • U p to dat e Up t o dat e U p t o dat e Up t o dat e U p to dat e U p t o dat e

U p t o dat e U p t o dat e Up t o dat e Up t o dat e Ga s Generatio n Record s D Readil y availabl e D U p t o dat e Remark s Settlemen t

Monumen t

Record s D Readil y availabl e Remark s D U p t o dat e Groundwate r

Monitorin g Record s • Readil y availabl e • U p t o dat e Remark s Thes e record s ar e submitte dannua l i n Groundwate r Monitorin g Report s Leachat e Extractio n Record s D Readil y availabl e Remark s Discharg e Complianc e Record s D Ai r • Readil y availabl e D Wate r (effluent ) D Readil y availabl e Remark s DaU y Access/Securit y Log s D Readil y availabl e Remark s D

D D

D U p t o dat e U p t o dat e Up t o dat e U p t o dat e D N/A

D N/A • N/A

D N/ A D N/A

D N/ A

• N/ A • N/ A • N/A • N/A

• N/A

• N/ A

D N/ A

• N/ A

• N/A • N/ A

• N/ A

E- 4rv . O& M COST S O& M Organizatio n n Stat e in-hous e D Contracto r for Stat e D PR P in-hous e • Contracto r fo r PR P n Federa l Facility in-hous e D Contracto r for Federa l Facilit y D Othe r 2 . O& M Cos t

Record s D Readil y availabl e D U p t o dat e • Fundin g mechanism/agreemen t i n plac e • Origina l O& M cos t

estimate : Contracto r

-negotiate dO& M for

fixedpric e ove r

3 0 year s D Breakdow n attache d

Fro m Fro m Fro m Fro m Fro m Dat e

Dat e Dat e Dat e Tota l annual cos t b y year for revie w perio di f

availabl e n Breakdow n attache d Dat e Tota l Cos t Dat e Tota l Cos t Dat e Tota l Cos t Dat e Tota l Cos t D Breakdow n attache d D Breakdow n attache d D Breakdow n attache d D Breakdow n attache d Dat e Dat e Tota l Cos t 3 . Unanticipate do r Unusuall y Hig h O& M Cost s Durin g Revie w Perio d Describ e cost s an dreasons : No t applicabl e (none) .

V . ACCES S AN D INSTITUTIONA L CONTROL S • Applicabl e D N/ A A . Fencin g 1 . Fencin g damage dD Locatio n show n o n sit e ma p D Gate s secure d• N/A Remark s Thi s sit e i s no t fence d B . Othe r Acces s Restriction s 1 . Sign s an dothe r

securit y measure s D Locatio n show n o n sit e map • N/A Remark s Th e sit e i s redevelope dan di s ope n t o th e public .

E- 5C . Institutiona l Control s (ICs )

1 . Implementatio n an denforcemen t Site condition s impl y IC s no t properl y implemente dD Ye s • N o D N/A Sit e condition s impl y IC s no t bein g fully enforce dD Ye s • N o D N/ A Typ e o f monitorin g (e.g. , self-reporting , driv e by ) Site visit s Frequenc y N o les s tha n quarterl y

• Ye s • Ye s

• Ye s n Ye s Phon e D N o D N o D N o • N o no .

• N/A D N/A D N/ A D N/ A Responsibl e party/agenc y MassDE P i s responsible : however , sit e visit s routinel y conducte db y PRP' s consultant s (GZA) . EP A an dMassDEP . Contac t Davi dBuckle y Projec t Manage r 617-556-115 6 Nam e Titl e Reportin g i s up-to-dat e Report s ar e verifie db y th e lea dagenc y Specifi c requirement s i n dee do r decisio n document s hav e bee n me t Violation s hav e bee n reporte d Othe r problem s o r

suggestions : b Report attache d Institutiona l Control s includ e followin g (general ) us e restrictions : n o groundwate r withdrawal , n o interferenc e with respons e actions , disruptio n o f caps , o r excavatio n o f

contaminate dmaterial . N o formal report s require db y MassDEP : however , propert y us e i s describe d(an dupdated ) i n Aimual Monitorin g report s prepare db y GZ A an dreviewe db y EP A an dMassDE P 2 . Adequac y • IC s ar e adequat e • IC s ar e inadequat e D N/ A Remark s D . Genera l 1 . Vandalism/trespassin g D Locatio n show n o n sit e ma p D N o vandalis meviden t Remark s Graffit

i wa s notice ddurin g on e sit e inspectio n an dha s sinc e bee n removed . 2 . Lan dus e change s o n sit e • Redevelopmen t D N/A Remark s Th e sit e ha s bee n redevelope dfor commercial/retai l use . Two building s ar e o n th e sit e bu t

ar e currentl y vacant . 3 . Lan dus e change s of f sit e • N/ A Remark s VI . GENERA L SIT E CONDITION S A . Road s • Applicabl e D N/ A 1 . Road s damage dD Locatio n show n o n sit e map • Road s adequat e D N/A Remark s

E- 6B .

A . 1 .

2 .

3 .

4 .

5 . 6 . 7 .

8 .

9 . Othe r Sit e Condition s Remark s A s aresul t ofth e complete dredevelopment , sit e condition s ar e generall y improve d (for exampl e ther e

Landfil l Surfac e ar e ne w acces s VII . Settlemen t

(Lo w spots ) Area l exten t Remark s Crack s Length s Remark s Erosio n Area l exten t Remark s Hole s Area l exten t Remark s Vegetativ e Cove r n Trees/Shrub s (indicat e Remark s road , additiona l asphal t ove r th e cap . mcrease dlightmg . etc.) . LANDFIL L COVER S • Applicabl e D N/ A

Width s D Locatio n show n o n sit e map Depth

D Locatio n show n o n sit e map

Depth s

n Locatio n show n o n sit e map Depth

n Locatio n show n o n sit e map Depth • Settlemen t no t eviden t

• Crackin g no t

eviden t

• Erosio n no t

eviden t

• Hole s no t

eviden t

D Gras s D Cove r properl y establishe dD N o sign s o f stres s siz e an dlocation s o n adiagram ) Alternativ e Cove r

(armore drock , concrete , etc. ) • Additiona l Layer : Parkin g Lo t Remark s A s aresul t o f redevelopment , an asphal t parkin g lo t

wa s installe dove r

th e remedia l cap . Bulge s Area l exten t Remark s We t Areas/Wate r D We t area s n Pondin g D Seep s D Sof t subgrad e Remark s Slop e Instabilit y Area l exten t Remark s Damag e

D Slide s D Locatio n show n o n sit e map

Heigh t

• We t areas/wate r

damag e no t

ev i n Locatio n show n o n sit e map D Locatio n show n o n sit e ma p D Locatio n show n o n sit e ma p n Locatio n show n o n sit e ma p • Bulge s no t eviden t

den t Area l exten t Area l exten t Area l exten t Area l exten t D Locatio n show n o n sit e map • N o evidenc e o f slop e instability

E- 7B . Benche s D Applicabl e • N/ A (Horizontall y constructe dmoimd s o f earth place dacros s astee p landfil l sid e slop e t o interrup t th e slop e i n orde r t o slo w dow n th e velocity o f surfac e runof

f an dintercep t

an dconve y th e runof

f t o aline d chaimel. ) 1 . Flow s Bypas s Benc h Remark s D Locatio n show n o n sit e map N/ A o r oka y 2 . Benc h Breache d Remark s D Locatio n show n o n sit e ma p N/A o r oka y 3 . Benc h Overtoppe d Remark s D Locatio n show n o n sit e ma p N/A o r oka y C . Letdow n Channel s D Applicabl e • N/A (Channe l line dwith erosio n contro l mats , riprap , grou t bags , o r gabion s tha t

descen ddow n th e stee p sid e slop e ofth e cove r

an dwil l allo w th e nmof

f wate r collecte db y th e benche s t o mov e of f o f th e landfil l cove r withou t creatin g erosio n gullies. ) 1 . Settlemen t Area l extent

_ Remark s D Locatio n show n o n sit e map D N o evidenc e o f settlemen t Depth 2 . Materia l Degradatio n D Locatio n show n o n sit e map I H N o evidenc e o f

degradatio n Materia l typ e Area l exten t Remark s Erosio n Area l extent

_ Remark s D Locatio n show n o n sit e map D N o evidenc e o f erosio n Depth Undercuttin g Area l exten t Remark s D Locatio n show n o n sit e ma p • N o evidenc e o f undercuttin g Depth Obstruction s Typ e n Locatio n show n o n sit e map Siz e Remark s D N o obstruction s Area l exten t

6 . Excessiv e Vegetativ e Growt h Typ e n N o evidenc e o f

excessiv e growth D Vegetatio n i n channel s doe s no t obstruc t flow D Locatio n show n o n sit e map Area l extent _ Remark s D . Cove r Penetration s • Applicabl e D N/ A

E- 8Ga s Vent s D Activ e D Passiv e D Properl y secured/locked D Fimctionin g D Routinel y sample d • Evidenc e o f

leakag e at

penetratio n D Need s Maintenanc e Remark s • Goo dconditio n • N/ A Ga s Monitorin g Probe s D Properl y secured/lockedD Functionin g D Evidenc e o f

leakag e a

t penetratio n Remark s D Routinel y sample d D Need s Maintenanc e D Goo dconditio n • N/A 3 . Monitorin g Well s (withi n surfac e are ao f Cap ) D Properl y secured/locke d• Functionin g • Routinel y sample d• Goo dconditio n D Evidenceo f

leakag e at

penetratio n • Need s Maintenance D N/A Remark s On e groundwate r monitorin g wel l wa s note dt o b e missin g aloc k i n th e north cove r area . Thi s i s aredevelopmen t punc h lis t

item . 4 . Leachat e Extractio n Well s D Properl y secured/locked D Fimctionin g D Routinel y sample dD Goo dconditio n n Evidenc e o f

leakag e at

penetratio n D Need s Maintenanc e • N/ A Remark s 5 . Settlemen t

Monument s Remark s D Locate d D Routinel y surveye d N/ A

E . Ga s Collectio n an dTreatmen t D Applicabl e N/ A 1 . Ga s Treatmen t

Facilitie s D Flarin g D Therma l destructio n D Collectio n for reus e n Goo dconditio n • Need s Maintenanc e Remark s Ga s Collectio n Wells , Manifold s an dPipin g D Goo dconditio n D Need s Maintenanc e Remark s Ga s Monitorin g Facilitie s (e.g. , ga s monitorin g o f adjacen t home s o r

buildings ) D Goo dconditio n D Need s Maintenanc e D N/ A Remark s F . Cove r Drainag e Laye r n Applicabl e N/ A 1 . Outle t

Pipe s Inspecte d Remark s n Functionin g D N/ A 2 . Outle t

Roc k Inspecte d Remark s D Functionin g D N/A

E- 9G . Detention/Sedimentatio n Pond s • Applicabl e D N/A A detentio n basi n i s locate dalon g th e northe medg e ofth e propert y an di s use dt o manag e stormwate r for mth e Roo f

drain s an dparkin g lo t

(i.e. . Cap) . 1 . Siltatio n Area l extent _ • Siltatio n no t

eviden t Remark s Depth D N/A

2 . Erosio n Area l extent _ • Erosio n no t

eviden t Remark s Depth _

Outle t Work s Remark s Functionin g D N/A 4 . Da m Remark s D Functionin g • N/A Vegetativ e Growt h D Locatio n show n o n sit e map D N/ A • Vegetatio n doe s no t

imped e flow Area l exten t

Typ e Remark s Vegetativ e growt h i n th e detentio n basi n i s maintaine db y ground s cre w 2 time s pe r year .

E-1 0H . Retainin g WaU s n Applicabl e N/A

1 . Deformation s D Locatio n show n o n sit e ma p • Deformatio n no t eviden t Horizonta l displacemen t

Vertica l displacemen t Rotationa l displacemen t Remark s 2 . Degradatio n Remark s D Locatio n show n o n sit e ma p D Degradatio n no t eviden t

I . Perimete r

Ditches/Off-Sit e Discharg e • Applicabl e D N/ A Meado w Broo k

flows alon g th e northe medg e ofth e sit e an dreceive s stormwate r fromth e detentio n 1 . basins . Siltatio n Area l extent

_ Remark s D Locatio n show n o n sit e map Depth Siltatio n no t eviden t Vegetativ e Growt h D Locatio n show n o n sit e map D N/ A • Vegetatio n doe s no t

imped e flow Areal exten t

Typ e Remark s Whil e th e flow doe s no t see mt o b e restricted , som e debri s ha s accumulate di n th e Broo k an dth e vegetatio n o n th e sid e slope s i s moderate . Th e Tow n ha s bee n mad e awar e o f thei r responsibilit y t o performth e recommen dO& M a s pe r th e O& M Manua l fo

r Meado w Brook . Erosio n Area l extent

_ Remark s D Locatio n show n o n sit e ma p Depth Erosio n no t eviden t Discharg e Structur e Remark s Functionin g D N/ A

VIII . VERTICA L BARRIE RWALL S D Applicabl e N/ A Settlemen t Area l extent

_ Remark s n Locatio n show n o n sit e map Depth n Settlemen t no t eviden t

Performanc e Monitorin g Typ e o f monitorin g n Performanc e no t

monitore d Frequenc y Hea ddifferential Remark s D Evidenc e o f breachin g

E-1 1IX . GROUNDWATER/SURFAC E WATE RREMEDIE S D Applicabl e • N/ A

A . Groundwate r

Extractio n Wells , Pumps , an dPipeline s D Applicabl e • N/A 1 . Pumps , Wellhea dPlumbing , an dElectrica l n Goo dconditio n D Al l require dwell s properl y operatin g D Need s Maintenanc e • N/ A Remark s 2 . Extractio n Syste mPipelines , Valves , Valv e Boxes , an dOthe r Appurtenance s D Goo dconditio n D Need s Maintenance Remark s 3 . Spar e Part s an dEquipmen t D Readil y availabl e D Goo dconditio n D Require s upgrad e D Need s t o b e provide d Remark s B . Surfac e Wate r

Collectio n Structures , Pumps , an dPipeline s D Applicabl e • N/A 1 . Collectio n Structures , Pumps , an dElectrica l n Goo dconditio n D Need s Maintenance Remark s 2 . Surfac e Wate r

Collectio n Syste mPipelines , Valves , Valv e Boxes , an dOthe r Appurtenance s D Goo dconditio n D Need s Maintenanc e Remark s 3 . Spar e Part s an dEquipmen t D Readil y availabl e D Goo dconditio n D Require s upgrad e D Need s t o b e provide d Remark s

E-1 2C . Treatmen t Syste m D Applicabl e N/A (GWT P decommissione dan dremoved ) 1 . Treatmen t

Trai n (Chec k

component s tha t

apply ) D Metal s remova l D Oil/wate r separation : D Ai r strippin g D Carbo n adsorbers : _ D Filter s D Bioremediatio n D Additiv e (e.g . D Other s , chelatio n agent , flocculent) D Goo dconditio n D Need s Maintenance D Samplin g port s properl y marke dan dfunctional n Sampling/maintenanc e lo g displaye dan dup t o dat e D Equipmen t

properl y identifie d Quantity o f

groundwate r

treate dannuall y Quantity o f

surfac e wate r

treate dannuall y Remark s Electrica l Enclosure s an dPanel s (properl y rate dan dfunctional ) D N/ A D Goo dconditio n D Need s Maintenance Remark s Tanks , Vaults , Storag e Vessel s D N/A D Goo dconditio n Remark s D Prope r secondary containmen t

D Need s Maintenance Discharg e Structur e an dAppurtenance s n N/ A n Goo dconditio n Remark s D Need s Maintenanc e 5 . Treatmen t

BuUding(s ) D N/ A D Goo dconditio n D D Chemical s an dequipmen t properl y store d Remark s Need s repai r

6 . Monitorin g Well s (pump an dtreatmen t remedy ) n Properl y secured/locke dD Functionin g D Routinel y sample d• Goo dconditio n n Al l require dwell s locate dD Need s Maintenance D N/A Remark s D . Monitorin g Dat a Th e las t comprehensiv e monitorin g dat awa s collecte do n Jul y 200 5 (3 1 monitorin g well s an d9 extractio n wells) . Sinc e that that time , bi-annua l groundwate r monitorin g ha s continue da s par t ofth e PRP s Cap an dCove r

O& M Plan . Aimual report s ar e received . 1 . Monitorin g Dat a • I s routinel y submitte do n tim e I s o f acceptabl e qualit y Monitorin g dat asuggests : • Groundwate r

plum e i s effectivel y containe dD Contaminan t concentration s ar e declinin g

E-1 3D . Monitore dNatura l Attenuatio n

1 . Monitorin g Well s (natura l attenuatio n remedy ) D Properl y secured/locke dD Functionin g D Routinel y sample d n Al l require dwell s locate dD Need s Maintenanc e Remark s D Goo dconditio n • N/ A

X . OTHE RREMEDIE S I f ther e are remedie s applie dat th e sit e whic h ar e no t

covere dabove , attac h an inspectio n shee t describin g th e physica l natur e an dconditio n o f an y facility associate dwit h th e remedy . A n exampl e woul db e soi l vapo r extraction . X L OVERAL L OBSERVATION S

B .

D . Implementatio n o f th e Remed y Describ e issue s an dobservation s relatin g t o whethe r th e remed y i s effectiv e an dfunctionin g a s designed . Begi n wit h abrie f statemen t

o f what th e remed y i s t o accomplis h (i.e. , t o contai n contaminan t plume , minimiz e infiltratio n an dga s emission , etc.) . Th e purpos e ofth e remed y i s isolate dan dpreven t direc t contac t wit h PCB-contaminate dsoi l an dsediment . Base dupo n th e sit e inspection , monitorin g results , an dobservation s durin g thi s review , th e remed y appear s t o b e functionin g a s intended . Ne w groundwate r cleanu p goal s establishe di n th e 200 5 ES D hav e bee n met . Th e Sit e wa s approve dfor an dsubsequentl y redevelope di n 2008 . Adequac y o f

O& M Describ e issue s an dobservation s relate dt o th e implementatio n an dscop e o f O& M procedures . I n particular , discus s thei r

relationshi p t o th e curren t an dlong-ter mprotectivenes s ofth e remedy . O& M plan s exis t

for th e Cap an dCove r

are aofth e sit e an dth e Meado w Broo k parcel . However , th e O& M pla n need s t o b e update ds o a s t o reflec t mino r change s a s aresul t

ofth e complete dredevelopment . Earl y Indicator s o f

Potentia l Remed y Problem s Describ e issue s an dobservation s suc h a s unexpecte dchange s i n th e cos t o r scop e o f O& M o r ahig h frequency o f

unschedule drepair s that

sugges t that th e protectivenes s ofth e remed y ma y b e compromise di n th e fiiture . N o issue s o r

observation s whic h sugges t th e protectivenes s ofth e remed y may b e compromised . Opportunitie s fo r

Optimizatio n Describ e possibl e opportunitie s for optimizatio n i n monitorin g task s o r th e operatio n ofth e remedy . Remedia l Actio n i s complet e an dth e Fina l Close-ou t Repor t (FCOR ) ha s bee n prepared . Remainin g remedia l activitie s consis t predominantl y o f

PRP-lea dO& M activities , therefore , n o rea l opportunity for optimization .

E-1 4