ENVIRONMENTA L PROTECTIO N AGENC Y 4 0 CF RPart

30 0 [EPA-HQ-SFUND-1986-0005 ; FRL ] Nationa l Oi l an dHazardou s Substance s Pollutio n Contingenc y Plan ; Nationa l Prioritie s List : Deletio n ofth e Norwoo dPCB s Superfun dSite AGENCY : Environmenta l Protectio n Agency . ACTION : Direc t

final rule . SUMMARY : Th e Environmenta l Protectio n Agenc y (EPA ) Regio n 1 i s publishin g a direc t final Notic e o f

Deletio n ofth e NorwoodPCB s Superfun dSite (Site) , locate di n NorwoodMassachusett s fro mth e Nationa l Prioritie s Lis t (NPL) . Th e NPL , promulgate d pursuan t t o sectio n 10 5 ofth e Comprehensiv e Environmenta l Response , Compensation , an dLiability Ac t

(CERCLA ) o f

1980 , a s amended , i s a

n appendi x ofth e Nafional Oi l an d Hazardou s Substance s Pollutio n Contingenc y Pla n (NCP) . Thi s direc t final deletio n i s bein g publishe db y EP A with th e concurrenc e ofth e Commonwealth o f Massachusetts , throug h th e Massachusett s Departmen t o f Environmenta l Protectio n (MassDEP) , becaus e EP A ha s determine dtha t

al l appropriat e respons e action s unde r CERCLA , othe r

tha n operation , maintenance , an dfive-year review s hav e bee n completed . However , thi s deletio n doe s no t

preclud e futur

e action s unde r

CERCLA . DATES : Thi s direc t

final deletio n i s effectiv e [insert dat e 6 0 day s fromth e dat e o f publicatio n i n th e Federa l Register ^ unles s EP A receive s advers e comment s b y [inser t dat e 3 0 day s fro mdat e o f publicatio n i n th e Federa l Register] . I f advers e comment(s ) are received , EP A wil l publis h atimel y withdrawa l ofth e direc t final deletio n i n th e Federa l Registe r informin g th e publi c tha t th e deletio n wil l no t

tak e effect .

SDM S DocI D 47942 6ADDRESSES : Submi t you r comments , idenfifie db y Docke t ID No . EPA-HQ-SFUND

1986-0005 , b y on e ofth e followin g methods :

• http://www.regulations.go v . Follo w on-lin e instruction s for submittin g comments .

• Email : keefe.daniel(^epa.go v

• Fax : 1-617-918-032 7

• Mail : Danie l Keef

e U.S . EP A Remedia l Projec t Manage r S 5 Pos t Offic e Squar e (OSRR07-1 ) Boston , M A 02109-391 2

• Han ddelivery t o th e followin g address : Danie l Keefe , 5 Pos t Offic e Squar e (OSRR07-1) , Boston , M A 02109 . Suc h deliverie s ar e onl y accepte ddurin g th e EPA' s norma l hour s o f

operafio n (9:0 0 a

mt o 5:0 0 pm) , an dspecia l arrangement s shoul db e mad e fo

r deliverie s o f

boxe dinformation . INSTRUCTIONS : Direc t you r comment s t o Docke t

ID No . EPA-HQ-SFUND-1986

- 0005 . EPA' s polic y i s tha t al l comment s receive dwil l b e include di n th e publi c docke t withou t chang e an dmay b e mad e availabl e onlin e a t http://www.regulations.gov , includin g an y persona l informatio n provided , unles s th e commen t include s informatio n claime dt o b e Confidentia l Busines s Informatio n (CBI ) o r othe r informatio n whos e disclosur e i s restricte db y statute . D o no t submi t informatio n tha t

yo u conside r

t o b e CB I o r otherwis e protecte dthroug h http://www.regulations.go v o r e-mail . Th e http://www.regulations.go v we b sit e i s an "anonymou s access " system , whic h mean s EP A wil l no t

kno w you r

identity o r

contac t informatio n unles s yo u provid e i t i n th e bod y o f you r comment . Ifyo u sen da

n e-mai l commen t

directl y t o EP A withou t

goin g throug h http://www.regulations.gov , you r e-mai l addres s wil l b e automaticall y capture dan dinclude da s part ofth e commen t

tha t i s place di n th e publi c docke t an dmad e availabl e o n th e Intemet . I f

yo u submi t

a n electroni c comment , EP A recommend s tha t yo u includ e you r nam e an dothe r

contac t informatio n i n th e bod y o f you r commen t an dwith an y dis k o r CD-RO M yo u submit . I f EP A canno t

rea dyou r

commen t du e t o technica l difficultie s an dcanno t

contac t yo u for clarification , EP A may no t b e abl e t o conside r

you r comment . Electroni c files shoul davoi dth e us e o f specia l characters , an y for mo f encryption , an db e fre e o f an y defect s o r

viruses . DOCKET : Al l document s i n th e docke t are liste di n th e http://www.regulations.go v index . Althoug h liste di n th e index , som e informatio n i s no t publicl y available, e.g. , CB I o r othe r informatio n whos e disclosur e i s restricte db y statue . Certai n othe r material , suc h a s copyrighte dmaterial , wil l b e publicl y availabl e onl y i n th e har dcopy . Publicl y availabl e docke t

material s are availabl e eithe r electronicall y i n http://wvyw.regulations.go v o r in har dcop y a

t either : EP A Regio n 1 Recor dCente r 5 Pos t Offic e Squar e Boston , M A 0210 9 Phone : 1-617-918-144 0 Hours : Mo n - Fr

i 8:0 0 a mt o 5:0 0 p m NorwoodMorril l Memoria l Library 3 3 Walpol e Stree t Norwood , M A Phone : 781-769-020 0 Hours : Mo n - Thur s 9:0 0 a mt o 9:0 0 pm ; Friday 10:0 0 amt o 5:0 0 pm ; Saturday 9:0 0 amt o 5:0 0 pm ; Sunday 2:0 0 a mt o 5:0 0 p m FO RFURTHE RINFORMATIO N CONTACT : Danie l Keefe , Remedia l Projec t Manager , U.S . Environmenta l Protectio n Agenc y Regio n 1 ; 5 Pos t Offic e Square ,Boston , M A 0210 9 Mailcode : OSRR07-01 , o r b y phon e a

t (617 ) 918-1327 , o r

b y emai l a

t keefe.danielfSjepa.go v SUPPLEMENTAR Y INFORMATION : Tabl e o f Contents . I . Introductio n II . NP L Delefio n Criteri a III . Deletio n Procedure s IV. Basi s for

Sit e Deletio n V . Deletio n Actio n I . Introductio n EP A Regio n 1 i s publishin g thi s direc t final Notic e o f

Deletio n fo

r th e Norwoo dPCB s Superfun dsit e (Site ) thu s removin g th e Sit e fro mth e Nationa l Priorifie s Lis t

(NPL) . Th e NP L constitute s Appendi x B o f 4 0 CF Rpart

300 , whic h i s th e Nationa l Oi l an dHazardou s Substance s Pollutio n Contingenc y Pla n (NCP) , whic h EP A promulgate dpursuan t t o Sectio n 10 5 ofth e Comprehensiv e Environmenta l Response , Compensafio n an dLiability Ac t (CERCLA ) o f

1980 , a s amended . EP A maintain s th e NP L a s th e lis t o f site s that appea r t o presen t

asignifican t

ris k t o publi c health , welfare , o r

th e environment . Site s o n th e NP L may b e th e subjec t o f remedia l action s finance db y th e Hazardou s Substanc e Superfun d(Fund) . A s describe di n 300.425(e ) (3 ) ofth e NCP , site s delete dfro mth e NP L remai n eligibl e fo r Fund

financedremedia l action s i f futur e condition s warran t

suc h actions . Becaus e EP A consider s thi s actio n t o b e noncontroversia l an droutine , thi s actio n wil l b e effectiv e [inser

t dat e 6 0 day s fro mth e dat e o f publicatio n i n th e Federa l Register ]unles s EP A receive s advers e comment s b y [inser t dat e 3 0 day s afte

r thi s publicatio n i n th e Federa l Register] . Alon g with thi s direc t final Notic e o f

Deletion , EP A i s co publishin g aNofic e o f

Inten t t o Delet e i n th e "Propose dRules " sectio n ofth e Federa l Register . I f

advers e comment s are receive dwithi n th e 30-day publi c commen t perio do n thi s delefio n action , EP A wil l publis h atimel y withdrawa l o f thi s direc t

final Notic e o f Deletio n befor e th e effectiv e dat e ofth e deletion , an dth e deletio n wil l no t tak e effect . EP A will , a s appropriate , prepar e arespons e t o comment s an dcontinu e with th e deletio n proces s o n th e basi s ofth e Notic e o f Inten t t o Delet e an dth e comment s alread y received . Ther e wil l b e n o additiona l opportunity t o comment . Sectio n II o f

thi s documen t

explain s th e criteri afor

deletin g site s fromth e NPL . Sectio n II I discusse s procedure s tha t EP A i s usin g for

thi s action . Sectio n IV discusse s th e Norwoo dPCB s Superfun dSite an ddemonstrate s ho w i t meet s th e deletio n criteria . Sectio n V discusse s EPA' s actio n t o delet e th e Site fro mth e NP L unles s advers e comment s are receive ddurin g th e publi c commen t period . II . NP L Deletio n Criteri a Th e NC P establishe s th e criteri atha t EP A use s t o delet e site s fro mth e NPL . I n accordanc e with 4 0 CF R300.425(e) , site s may b e delete dfro mth e NP L wher e n o fiirther respons e i s appropriate . I n makin g suc h adeterminatio n pursuan t t o 4 0 CF R300.425(e) , EP A wil l consider , i n consultatio n with th e State , whethe r an y ofth e followin g criteri a hav e bee n met : i . responsibl e partie s o r othe r person s hav e implemente dal l appropriat e respons e action s required ;ii . al l appropriat e Fund-finance drespons e unde r CERCL A ha s bee n implemented , an dn o further respons e actio n b y responsibl e partie s i s appropriate ; o r iii . th e remedia l investigatio n ha s show n tha t th e releas e pose s n o significan t threa t t o publi c health o r

th e environmen t

and , therefore , th e takin g o f remedia l measure s i s no t

appropriate . Pursuan t t o CERL A Sectio n 121(c ) an dth e NCP , EP A conduct s five-year review s t o ensur e th e continue dprotectivenes s o f remedia l action s wher e hazardou s substances , pollutants , o r

contaminant s remai n a

t asit e abov e level s tha t

allo w for unlimite dus e an d unrestricte dexposure . EP A conduct s suc h five-year review s eve n if asite i s delete dfrom th e NPL . EP A ma y initiat e further actio n t o ensur e continue dprotectivenes s at adelete d sit e i f ne w informatio n become s availabl e tha t indicate s i t

i s appropriate . Wheneve r ther e i s asignifican t

releas e fro masit e delete dfro mth e NPL , th e delete dsit e may b e restore d t o th e NP L withou t

applicatio n ofth e hazar drankin g system . III . Deletio n Procedure s Th e followin g procedure s appl y t o deletio n ofth e Site : (1 ) EP A consulte dwit h th e Commonwealth o f

Massachusett s prio r

t o developin g thi s direc t

final Notic e o f

Deletio n an dth e Notic e o f Inten t t o Delet e co-publishe dtoda y i n th e "Propose dRules " sectio n ofth e Federa l Register . (2 ) EP A ha s provide dth e Commonwealth thirt y (30 ) workin g day s for revie w o f thi s Notic e an dth e paralle l Notic e o f Inten t t o Delet e prio r

t o thei rpublicatio n today , an dth e Commonwealth , throug h th e MassDEP , ha s concurre do n th e deletio n ofth e Site fromth e NPL . (3 ) Concurrentl y wit

h th e publicatio n o f

thi s direc t

final Notic e o f

Deletion , a notic e ofth e availabilit y ofth e paralle l Notic e o f Inten t t o Delet e i s bein g publishe di n amajo r

local newspaper , th e NorwoodRecord . Th e newspape r

notic e armounce s th e 30-day publi c commen t perio d concemin g th e Notic e o f

Inten t t o Delet e th e Sit e fro mth e NPL . (4 ) Th e EP A place dcopie s o f document s supportin g th e propose ddeletio n i n th e deletio n docke t

an dmad e thes e item s availabl e for publi c inspectio n an dcopyin g a

t th e Site informatio n repositorie s identifie dabove . (5 ) I f advers e comment s ar e receive dwithi n th e 30-day publi c commen t perio do n thi s deletio n action , EP A wil l publis h atimel y notic e o f withdrawa l o f

thi s direc t

final Notic e o f

Deletio n befor e it s effectiv e dat e an dwil l prepar e arespons e t o comment s an dcontinu e with th e deletio n proces s o n th e basi s ofth e Notic e o f Inten t t o Delet e an dth e comment s alread y received . Deletio n o f

asite fro mth e NP L doe s no t itsel f create , alter , o r

revok e an y individual' s right s o r

obligations . Deletio n of asite fromth e NP L doe s no t i n an y way alte r EPA' s righ t

t o tak e enforcemen t

actions , a s appropriate . Th e NP L i s designe d primaril y for

informationa l purpose s an dt o assis t EP A management . Sectio n 300.425(e)(3 ) ofth e NC P state s tha t th e deletio n of asit e fro mth e NP L doe s no t preclud e eligibility for

futur e respons e actions , shoul dfutur e condition s warran t

suc h actions . IV . Basi s fo r

Sit e Deletio nTh e followin g informatio n provide s EPA' s rational e for deletin g th e Site fro mth e NPL : Sit e Backgroun dan dHistor y Th e Norwoo dPCB s Superftin dSite (CERCLI S No . MAD980670566 ) i s locate d i n Norwood, Massachusetts , approximatel y 1 4 mile s southwes t ofth e Cit

y o f Boston . Lan dus e consist s predominatel y o f industrial/commercia l propertie s an dassociate d parkin g area s i n a

n industrial/commercia l area . T o th e north , th e Sit e i s bordere db y residentia l properties , t o th e eas t b y Rout e 1 an dth e Dean Stree t acces s road , t o th e sout

h b y Dean Street , an dt o th e wes t b y residentia l properties . Th e northe mportio n ofth e Sit e consist s o f

aportio n o f

Meado w Brook . Contaminatio n originate dfro mdisposa l practice s ofth e partie s wh o owne dth e propert y o r

operate dbusinesse s o n th e Site (th e Facility) . Th e former on-sit e buildin g was constructe di n 194 2 b y Bendi x Aviatio n Corporation , whic h produce dnavigationa l contro l system s 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 equipment . Th e propert y wa s purchase di n 195 6 b y Comell-Dubilie r Electronics , Inc. , whic h als o manufacture d electrica l equipmen t

a t th e facility . I n January 1960 , th e property was owne db y Maryval e Corporation , an dwa s the n purchase db y th e Friedlan dbrothers . Th e Friedlan d brother 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 dfrom196 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 ofth e facilit

y t o Cornell-Dubilie r

Electronics , Inc . an dt o Arro w Hart Corporation , whic h als o manufacture delectrica l equipment . I n 1979 , th e Sit e wa s subdivided . Th e northeaste m portio n ofth e Site , approximatel y 9 acres , wa s purchase db y Gran t Gea r Realty Trust ,whic h lease dth e facilit y t o Gran t

Gea r Works , Inc. , t o produc e gear s for variou s industries . Th e southe man dweste mportion s ofth 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 d th e propert y int o seve n lot s an dadde dane w privat e way (Kerry Place) . O n th e eas t sit e ofth e Sit e run s Meado w Broo k throug h aproperty owne db y th e Tow n o f Norwoo d whic h contain s atow n sewe r easement . I n 1983 , MassDE P receive dacal l froma n abuttin g residen t

reportin g pas t industria l wast e dumpin g an dcontaminatio n i n th e the n vacan t fieldo f Kerr y Place . A s a result , a n initia l investigatio n wa s conducte dwhic h confirme dth e presenc e o f PCBs . EP A contractor s assiste dMassDE P with th e collectio n o f sample s an dbase do n thes e findings , it

wa s determine dtha t

a n emergenc y remova l wa s warranted . EP A remove d an ddispose d(off-site ) 51 8 ton s o f contaminate dsoil . Durin g th e removal , 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 . In Octobe r

1984 , th e Site wa s propose dfor inclusio n o n th e NP L (4 9 F R40320 ) an dwa s formall y adde do n Jun e 10 , 198 6 (5 1 FR21054) . Remedia l Investigatio n an dFeasibilit y Stud y (RI/FS ) Th e Remedia l Investigations/Feasibilit y Stud y (RI/FS ) wa s complete di n 1989 . Durin g th e investigatio n th e followin g medi awer e evaluated : air , surfac e soil , subsurfac e soil , dredg e piles . Meado w Broo k sediments , surfac e water , groundwater , an dth e Gran t Gea r Building . Th e highes t

concentratio n o f

PCB s i n soi l wa s i n aformer disposa l are a i n th e weste man dnorther n portion s ofth e Gran t Gea r propert y wher e u p t o 26,00 0 part s pe r millio n (ppm ) wer e identified . Th e estimate dtota l volum e o f contaminate dsoi l i n both saturate dan dunsaturate dsoi l with PC B concentration s greate r tha n 1 0 pp mwa s31,55 0 cubi c yard s (y d) . Soil s wer e als o foun dt o b e contaminated , althoug h t o alesse r

extent , with VOCs , SVOC s an dmetals . Contaminant s release dt o Meado w Broo k include dPCBs , VOCs , an dmetals . Withi n sediments , th e primary transpor t mechanis mfor

PCB s was th e movemen t o f sedimen t t o whic h th e PCB s ar e attached . PCB s detecte di n sedimen t range du p t o 1,10

0 pp mi n Meado w Broo k

an du p t o 3,85 0 pp mi n former sedimen t dredg e piles . With regar dt o groundwater , contaminant s includ e PCBs , VOC s an dSVOC s with th e highes t

concentration s generall y bein g detecte dwes t ofth e former

Gran t Gea r building . Groundwate r

contaminatio n wa s detecte di n both overburde n an dbedroc k aquifer s with trichloroethyien e havin g th e highes t concentratio n (1,80 0 part s pe r billio n (ppb) ) i n overburde n an dviny l chlorid e i n bedroc k (11 0 ppb) . Selecte dRemed y I n Septembe r

1989 , EP A issue daRO D for th e NorwoodPCB s site . Th e Remedia l Actio n Objective s outline di n th e 198 9 RO D t o addres s contaminate d buildings , soils , sediments , an dgroundwate r 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 .

• T o reduc e risk s t o worker s associate dwith direc t contac t with PCB-contaminate d surfaces .

• T o reduc e risk s t o worker s associate dwith inhalatio n o f airbom e PCB s withi n th e Gran t Gea r Building.

• Reduc e risk s pose db y direc t contac t with soi l contaminate dwith PCB s an dP AHs .

• Reduc e risk s pose db y incidenta l ingestio n o f soil s contaminate dwith PCB s an d PAHs .

1 0• Mitigat e an y futur e impact s o f

suc h remedia l activitie s t o Meado w Broo k an dth e surroundin g wetlan dareas . .

• Minimiz e migratio n o f VOC s t o groundwater .

• Reduce , withi n areasonabl e tim e frame , risk s t o worker s pose db y inhalatio n o f airbom e contaminant s volatilize dfromgroundwater .

• Reduc e risk s t o huma n health an dth e environmen t fromcurren t

an dfiiture migratio n o f contaminant s i n groundwater . Majo r component s ofth e 198 9 remed y include :

• Decontaminatio n o f

surface s o f

machinery , equipment , an dfloors withi n th e plan t area s ofth e Gran t

Gea r Building ;

• Excavatio n o f

approximatel y 34,000cubi c yard s o f PCB-contaminate dsoil s an d sediment s an dtreatmen t

b y solven t

extraction ;

• Backfillin g o f

soil s an dsediment s t o b e covere dwith asphal t o r clean fill

• Constructio n an doperatio n of aGroundwate r Treatmen t

Plan t (GWTP ) t o remediat e groundwater ;

• Restoratio n o f

impacte dwetlands ;

• Long-termmonitoring; an d

• Institutiona l control s (ICs ) A s aresul t

o f highe r than anticipate dsolven t

extractio n cost s an dlogistica l problem s with it s implementation , an di n consideratio n ofth e likel y commercial/industria l reus e o f th e property , EP A issue daRO D Amendmen t i n Ma y 1996 . Th e RO D Amendmen t include dth e demolitio n o f th e Gran t Gea r building , th e excavatio n an dconsolidatio n o f contaminate dsoil s an dsediment s o n site , an dth e constructio n o f apermanen t

cap . Soi l

1 1an dsedimen t clean-u p goal s wer e further modifie da s discusse di n th e Cleanu p Goal s section . I n accordanc e with EPA' s 199 6 Fina l Groun dWate r Us e an dValu e Determinatio n Guidance , i n May 2001 , MassDE P submitte da"low " us e an dvalu e determinatio n fo r th e groundwate r

a t an di n th e vicinity o f

th e Site . Thi s determinatio n was mad e base do n th e aquifer' s classificatio n a s anon-potentia l drinkin g wate r sourc e area , a s wel l a s th e fac t tha t 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 dexposur e assumption s use dfo r 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 dgroundwate r clean-u p levels , o r risk-base dactio n level s (RBALs) , wer e calculated . Thes e wer e subsequentl y adopte da s groundwate r

Cleanu p goal s i n a200 5 Explanatio n o f Significan t

Difference s (ESD) . Curren t

groundwate r

clean-u p goal s are liste di n th e Clean-u p Goal section . Respons e Action s Remedia l activitie s wer e complete di n asingl e Operabl e Uni t (OU) ; however , th e activitie s consiste dofth e followin g phases : Phas e 1 wa s complete db y th e EP A an d consiste do f

groundwate r

treatmen t

plan t constructio n an doperation ; Phas e 2 was conducte db y th e Settlin g Partie s an dconsiste do f buildin g demolition ; Phas e 3 wa s conducte djointl y b y th e Settlin g Partie s an dEP A an dconsiste dofth e constructio n of a ca p an dcove r

ove r consolidate dcontaminate dsoi l an dsediment s (Phas e 3 A - Settlin g Party-lead ) an dMeado w Broo k Restoratio n (Phas e 3 B - EP A lead) .

1 2Fo r EPA-lea dactivities , suc h a s th e GWTP , th e desig n criteri awer e se t fort h i n th e final "Plan s an dSpecification s for th e Groundwate r

Remediatio n a

t th e Norwoo d PC B Superfun dSite " prepare db y Metcal f & Eddy , Inc . o n behal f

o f EP A i n 1994 . Meado w Broo k

Restoratio n Phas e (Phas e 3b ) was complete di n accordanc e with a UASC E Statemen t

o f Wor k (SOW) , whic h include ddesig n detail s provide db y th e Tow n o f Norwoo da s par t

o f it s floodcontrol/floo dmitigatio n project . Desig n criteri afo r th e Settlin g Party-lea dcleanu p wor k (t o addres s risk s associate dwith th e former Gran t Gea r facilit y an dit s operations ) wer e se t fort h i n th e Statemen t

o f Wor k (SOW ) whic h wa s part of a199 6 Consen t

Decre e with forme r

owner s an doperator s ofth e Facility (hereafter referre dt o a s th e "Facilit y CD" ) a s wel l a s th e Remedia l Actio n Wor k Plan s submitte db y th e Settlin g Partie s an dapprove db y EP A consisten t with th e SOW . Sedimen t Th e Settlin g Partie s performe dexcavatio n o f sediment s i n Meado w Broo k from Apri l 199 7 throug h Jul y 1998 . 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 . Th e excavatio n o f Reac h 1 was complete dwith excavatio n limit s determine db y th e Tow n o f Norwooda s thi s sectio n o f th e Broo k

was als o targete dfor

sedimen t remova l a s part

ofth e Town' s floodcontrol/floo dmitigatio n project . Followin g th e excavatio n o f Reac h 1 t o grade s provide db y th e Town , a n are ao f staine dsoil s wa s eviden t

at/belo w aformer

drainag e outfal l pipe . Base do n th e analytica l result s showin g PCB s greate r tha n 1 ppm , alimite dremova l o f th e staine dsedimen t

wa s performed . I n total , approximatel y 2,50 0 yd' ^ o f materia l wa s excavate dfro mReac h 1 includin g 8 5 yd'

^ o f staine dsoil .

1 3Th e excavatio n o f Reache s 2 an d3 wa s performe di n tw o phase s - th e first consiste do f

sedimen t remova l fromth e arche dculvert sectio n a

t Dean Street , an dth e secon dconsiste do f

sedimen t remova l fro mth e bo x culvert section . Onc e clean-u p level s ( 1 pp mi n sediment ) wer e achieved , sedimen t remova l activitie s wer e terminated . Approximatel y 2,30 0 y do f materia l wa s excavate dfromthes e reaches . Soi l Soil s with PC B concentration s exceedin g th e appropriat e clean-u p level s wer e excavate dfromsevera l on-property areas . I n addition , atrichlorobenzen e (TCB)

- contaminate dsoi l are awa s identifie dwes t o f th e former

Gran t Gea r building ; thi s wa s als o excavated . Approximatel y 5,90 0 yd' ' o f PCB-contaminate dsoi l was excavate dfrom th e North Cove r

Are aan dstockpile dfo

r placemen t

unde r th e cap/cover . Approximatel y 2,60 0 y do f

PCB-contaminate dsoi l wa s excavate dfro mth e Sout h Cove r Are aan d stockpile dfo

r placemen t

unde r th e cap/cover . Wit h regar dt o off-propert

y soils , severa l area s wer e identifie dwith PC B concentration s exceedin g th e appropriat e clean-u p levels . Durin g th e remediatio n o f Reac h 1 o f

Meado w Brook , PCB-contaminate dsoil s wer e identifie dalon g th e North Bank Woode dArea . Approximatel y 100 yd ^ o f soi l wa s excavate dan dstockpile dfor placemen t

unde r th e cap/cover . I n addition , PCB-contaminate dsoil s wer e discovere d alon g th e Sout

h Ban k Woode dAre aresultin g i n th e excavatio n o f approximatel y 78 0 y d o f soil . Beginnin g i n 1997 , th e stockpile dsoil s wer e further consolidate don-site . Material s with PC B concentration s exceedin g th e risk-based , site-specifi c industrial/commercia l clean-u p level s (o f 7 0 ppm ) wer e place dwithi n th e limit s o f th e

1 4asphal t cap . Material s with PC B concentration s belo w clean-u p leve l o f 7 0 ppm , bu t abov e 4 0 ppm , wer e place dwithi n th e limit s o f th e cove r

areas . Durin g soi l excavatio n an dconsolidation , on-sit e undergroun dstorag e tank s (USTs ) wer e als o remove dbefore th e ca p an dcove r

wer e installed . Afte

r th e PCB-contaminate dmaterial s ha dbee n placed , th e area s wer e prepare dfor th e installatio n o f

th e ca p an dcovers . Onc e th e fill wa s place dt o th e appropriat e grad e 1 2 inche s belo w th e final grad e i n cappe dan dcovere d areas , anon-wove n geotextil e filter fabri c was lai dacros s th e areas . Subsequently , a n asphal t Ca p o r grave l cove r

wa s installe di n th e appropriat e areas . Groundwate

r Th e selecte dremed y for

th e managemen t

o f groundwate r

migratio n include dth e collectio n o f

groundwate r

usin g a n extractio n syste mconsistin g shallo w extractio n well s an dth e constructio n o f aGWT P consistin g o f carbo n adsorption , ai r stripping , precipitation , an dfiltration. Th e GWT P wa s constructe di n 199 5 an ddeeme doperationa l an dfunctional i n February 1997 . Th e groundwate r

treatmen t

syste mwas operationa l unti l i t was shu t dow n (at tha t tim e temporarily ) i n Jun e o f 2000 . A s aresul t

o f th e revise dgroundwate r classificatio n an d"low " us e an dvalu e ascribe db y MassDE P i n 2001 , groundwate r cleanu p goal s wer e further modifie di n a

n 200 5 ESD . Subsequently , EP A determine dtha t n o fiirther groundwate r

clean-u p was warrante da s revise dclean-u p goal s wer e bein g met . Th e GWT P wa s dismantle di n Marc h 200 8 jus t prio r t o propert y redevelopment . Institutiona l Control s A s require db y aProspectiv e Purchase r Agreemen t

(PPA ) entere di n 199 7 betwee n th e owne r

an dth e EP A , th e Owne r update dan drecorde d(wit h th e Norfol k

1 5County Registry o f Deeds ) update dIC s i n th e for mof aGran t

o f Environmenta l Restriction s an dEasemen t (GERE) . Th e GERE wa s recorde di n Marc h 200 8 an dentere d int o Boo k No . 25628 , Pag e No . 534 . Th e GERE restrict s certai n activitie s suc h a s da y care , residentia l use , an dgroundwate r withdrawa l (amon g others ) an dpermit s othe r activities , suc h a s excavation , provide dcertai n safet y procedure s ar e followe dan d approval s obtained . Unde r th e term s of a199 7 Consen t Decre e (hereafte r

referre dt o a s th e "Meado w Broo k

CD" ) th e Tow n o f

Norwoo dals o establishe dIC s o n th e Meado w Broo k parce l (recorde da

t Boo k No . 26407 , Pag e No . 129) . Cleanu p Goal s Th e cleanu p goal s fo

r PBC s i n soi l an dsedimen t wer e modifie da s aresul t th e 199 6 RO D Amendmen t (se e tabl e below) : Property Gran t Gea r Property Adjacen t Commercia l Property Soi l betwee n Gran t

Gea r an d Meado w Broo k Sedimen t Residentia l Propertie s 198 9 RO D 1 0 pp m

2 5 pp m

1 pp m

1 pp m 1 pp m 1996ROD- A

4 0 pp msurfac e 7 0 pp msubsurfac e 4 0 pp msurfac e 7 0 pp msubsurfac e 1 0 pp msurfac e 5 0 pp msubsurfac e 1 pp m N o actio n require d

Contaminate dsoi l an dsedimen t wer e excavate dan dconsolidate do n property fo r placemen t

withi n th e ca

p o r cove r dependin g o n th e leve l o f contamination . Post

1 6excavatio n samplin g wa s conducte dan ddescribe di n th e remedia l actio n Remediatio n

Completio n Report

prepare db y consultant s o n behal f o f th e Settlin g Parties . Wit h regar dt o Groundwater , a s describe dpreviously , th e Commonwealth o f Massachusett s classifie dgroundwate r beneath an dadjacen t

t o th e sit e a s "Low " us e an d value . A "Low " designatio n indicate s tha t it i s no t afutur e drinkin g wate r

source . Accordingly , chang e t o th e origina l G W cleanu p goal s (whic h wer e base do n MCLs ) wer e documente di n th e 200 5 ES D an dare summarize dbelow :

Contaminan t Trichloroethen e Tetrachloroethen e Viny l Chlorid e Total 1,2-dichloroethene s 1,2,4-trichlorobenzen e 1,4-dichlorobenzen e 198 9 RO D 5 pp b 5 pp b 2 pp b 17 5 pp b 35 0 pp b 5 pp b 200 5 ES D

10 8 pp b 3 7 pp b 31 0 pp b 366 0 pp b 3 4 pp b 4. 6 pp b

EP A conducte dquarterl y groundwate r monitorin g fro mApri l 199 6 unti l Octobe r 200 2 whic h coincide dwith th e perio do f GWT P operatio n an dshortl y thereafter . Surfac e wate r sample s wer e als o periodicall y collecte dfro mMeado w Brook . Severa l year s afte r plan t shutdow n (i.e . i n 2005) , EP A complete dafma l comprehensiv e groundwate r evaluatio n an 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 dtha t

al l groundwate r

clean-u p goal s wer e bein g me t (approximatel y 5

1 7year s afte r GWT P shu t

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

necessary . Operatio n an dMaintenanc e A s describe dpreviously , remedia l activitie s wer e complete di n 3 phase s (th e thir d phas e consistin g o f

bot h aPhas e 3 A an dPhas e 3B) . Phas e 1 - Groundwate r

Treatmen t

Plan t Base do n achievin g revise dgroundwate r clean-u p goal s modifie di n th e 200 5 ESD , i n 2006 , EP A determine dtha t th e GWT P ha dreache dth e en do f it s "usefu l life " for al l use s relativ e t o sit e respons e activities . Accordingly , EP A proceede dt o remov e chemica l processin g equipmen t fromth e GWT P an ddecommissio n extractio n an d monitorin g well s tha t

wer e no t part ofth e long-ter mmonitoring . I n alette r date dApri l 5 , 2007 , EP A provide dnotic e t o th e owne r that , a s pe r

th e PPA , EP A ha dcomplete dit s decommissionin g activities . Subsequently , o n May 16 , 2007 , EP A receive dnotic e from th e owne r o f hi s intentio n no t

t o reus e th e GWT P building . A wor k pla n for it s dismantlin g wa s submitte dan dapprove di n Septembe r 2007 . Th e buildin g wa s remove d i n th e Sprin g o f

2008 . N o long-termO& M ofth e treatmen t plan t i s required . On-goin g evaluatio n o f

groundwate r

i s provide db y groundwate r sample s collecte db y th e Settlin g Partie s t o th e Facilit y C D a s part o f thei r on-goin g O& M ofth e Cap an dCover s (se e Phas e 3 A below) . Phas e 2 - Buildin g Demolitio n Th e buildin g demolitio n phas e too k plac e immediatel y prio r

t o an di n connectio n with th e relocatio n o f

soi l an dsediment , an dth e constructio n ofth e cap an dcovers . Accordingl y ther e i s n o O& M associate dwith thi s RA .

1 8Phas e 3 A - Ca p an dCover s Th e O& M an dEnvironmenta l Monitorin g Plan s (EMP ) wer e approve di n Novembe r

2004 . Consisten t

with thes e plans , th e Settlin g Partie s t o th e Facilit y C D annuall y inspec t

th e cap an dcovers . A s aresul t o f redevelopment , certai n cove r area s hav e bee n replace dwith ane w typ e o f cove r (referre dt o a s "foundatio n cover") . I n addition , certai n monitorin g well s selecte dfo r long-termmonitorin g hav e bee n re located . Accordingly , revise dO& M an dEM P plan s wer e submitte di n Apri l 201 0 an d subsequentl y approve di n January 2011 . Phas e 3 B - Meado w Broo k Restoratio n A t th e completio n o f

thi s restoration , an di n ligh t o f desig n detail s provide db y th e Tow n o f Norwoodt o insur e consistenc y with othe r floodmitigatio n projects , a n Operatio n Manua l was provide dt o th e Tow n o f Norwoodi n 2000 . Th e Operatio n Manua l describe drecommende dprocedure s an dinspection s t o ensur e tha t th e complete d projec t continue s t o fiinctio n a s designe dan dtha t th e floodcontro l infrastructur e remain s i n plac e t o preven t

th e releas e o f

an y subsurfac e contamination . Institutiona l Control s EP A an dth e Stat e wil l periodicall y (no t les s tha n annually ) inspec t th e propert y t o insur e tha t

usag e ha s no t

deviate dfromthos e allowe db y th e ICs . Unde r th e GERE recorde do n th e Facilit y property , th e landowne r i s obligate dt o follo w procedure s t o ensur e tha t

Sit e redevelopmen t

doe s no t damag e component s ofth e remedy . O n th e Meado w Broo k

property , th e Tow n i s obligate dunde r th e term s ofth e Meado w Broo k C D t o ensur e tha t

n o releas e o f

subsurfac e contaminatio n occur s eithe r i n it s maintenanc e

1 9o f

floodcontro l structure s or it s sewe r easemen t throug h th e area . Th e statu s an d protectivenes s o f

thes e I C wil l b e summarize di n successiv e five year reviews . Redevelopmen t I n 1997 , th e 9-acr e Gran t Gea r propert y wa s sol dan dth e ne w owne r obtaine da PP A fro mEP A whic h require dth e owne r t o guarante e continue dsit e access , dismantl e th e Groundwate r

Treatmen t

Plan t (GWTP ) buildin g (whe n i t ha dreache dth e en do f

it s "usefu l life") , a s wel l a s recor dupdate dInstitutiona l Controls . Subsequentl y (earl y 2000s) , th e owne r

entere da99-yea

r groun dleas e with acommercial/retai l developer . I n 2003 , th e develope r

propose dalarg e (>150,00 0 squar e feet) redevelopment; however , thi s woul dhav e bee n situate dpredominantl y ove r th e remedia l cap an dwoul dhav e require dexcavatio n int o contaminate dsoil . Base do n local concem s associate dwith disturbin g th e cappe darea , traffic , an dothe r local lan dus e issues , thi s redevelopmen t wa s no t approve db y th e Town . Thus , i n 2007 , adifferent

commercial/retai l develope r propose dmodification s t o th e origina l redevelopmen t pla n includin g th e constmctio n o f building s aroun dth e footprin t ofth e cappe dportio n ofth e site . Thi s reus e woul densur e tha t non e ofth e highest-contaminate dmateria l woul db e exposed . Th e revise dwor k pla n for redevelopmen t

(WPR ) wa s approve db y EP A an dMassDE P i n Marc h 2008 , afte r whic h th e develope r

receive dth e necessary Tow n approvals . Constructio n ensue di n Ma y 200 8 an dwa s substantiall y complet e i n Octobe r 2008 . • A s aprecautio n an dt o ensur e agains t th e accumulatio n o f

vapor s from groundwate r

t o indoo r

air , apassiv e vapo r

mitigatio n syste mwas require dan dinstalle d i n eac h ofth e commercia l building . A s require di n th e WPR , pos t constructio n an dprio r

2 0t o occupancy , sub-sla b ai r sample s wer e collecte dan danalyze dan daris k assessmen t completed . Base do n thi s analysis , th e risk s wer e foun dt o b e acceptabl e (i.e. , les s tha n 1 X 10'^) fo

r afutur e commercia l worker . Moreover , base do n local zonin g a s wel l a s restrictio n recorde dagains t th e propert y (describe dfurther below) , residentia l us e i s prohibited . I n th e future , a s necessar y an dpendin g futur e monitorin g results , th e sub-sla b ventilatio n system s ca n b e mad e t o b e activel y vente dwit h th e additio n o f blower s o r vacuu mpumps . Presently , tw o building s totalin g 56,000squar e feet o f commercial/retai l spac e ar e situate do n th e NorwoodPCB s site . Th e cap , unde r whic h i s locate dth e highes t concentration s o f

PCBs , serve s a s acentra l parkin g lo t fo r th e development . T o date , th e developmen t

i s no t occupied . Five-Yea r

Revie w Sinc e hazardou s substance s wil l remai n o n th e sit e abov e level s allowin g for unlimite dus e an dunrestricte dexposure , statutory five year review s hav e bee n conducte d b y EP A pursuan t

t o CERCL A Sectio n 12 1 C a s provide di n OSWE RDirectiv e 9355.7

- 03B-P , Comprehensiv e Five-Year Revie w Guidance . Th e Firs t Five-Year

Review , date d3 0 Decembe r 1999 , conclude dtha t

th e remed y was protectiv e an drecommende dthat , i n ligh t ofth e State' s reclassificatio n o f groundwater , aris k

assessmen t

b e competed . Upo n attainin g revise drisk-base dclean-u p levels , groundwate r

treatmen t

wa s n o longe r

required , bu t

monitorin g wa s continue dt o verif y tha t revise dgroundwate r

standard s woul dcontinu e t o b e met . Th e Secon dFive-Year

Review , date d2 9 Decembe r 2004 , conclude dtha t

th e remed y wa s short-termprotectiv e o f huma n health an dth e environmen t base do n

2 1continue dcomplianc e wit h ne w clean-u p goals . I n addition , O& M plan s wer e submitte d for bot h th e Facility an dMeado w Broo k properties . Th e 200 4 revie w als o conclude dtha t i n orde r for th e remed y t o remai n protectiv e i n th e long-term , th e followin g action s neede dt o b e taken : 1 . update dinstitutiona l control s neede dt o b e recorded , an d2 . Operatio n an dMaintenanc e (includin g monitoring ) neede dt o b e conducte dregularl y [bot h o f whic h hav e sinc e occurred] . Th e Thir dFive-Year

Review , complete di n Decembe r 2009 , conclude dtha t

th e remed y a t th e NorwoodPCB s Sit e continue s t o protec t 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 concurrentl y durin g redevelopmen t

ofth e Site . Th e 200 9 Fiv e Yea r Revie w als o conclude dtha t i n orde r fo r th e remed y t o remai n protective , th e Operatio n & Maintenanc e (O&M ) Pla n an d Environmenta 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

ofth e redevelopment . Thes e hav e bee n update dan dapprove d (January 2011) . Th e Fourth Five-Year

Revie w i s du e i n Decembe r 2014 . Communit y Involvemen t EP A communit y participatio n a t th e site ha s take n man y forms . I n additio n t o statutorily-require dmeeting s an dpubli c hearing s associate dwith th e 198 9 RO D an d 199 6 RO D Amendment , EP A ha s participate di n numerou s othe r outreac h activities . EP A conducte dpubli c outreac h durin g eac h ofth e thre e five-year reviews . EP A prepare dupdate dFac t

Sheet s i n 2003 , 2005 , an d2007 . Th e Fac t Sheet s wer e distribute d t o mailin g lis t

recipient s a s wel l a s hand-distribute dt o al l abuttin g residence s an d

2 2busines s owners . Extr acopie s ofth e fac t sheet s hav e bee n mad e availabl e t o th e publi c a t th e followin g locations : th e Norwoo dPubli c library an dNorwoodTow n Hall . I n addition , EP A ha s attende dnumerou s Publi c Meeting s durin g th e sit e redevelopmen t

approva l process . Al l Community Involvemen t activitie s require dan di n associatio n with thi s propose ddeletio n hav e bee n completed , includin g th e publicatio n o f anotic e i n alocal newspape r o f genera l circulatio n regardin g thi s propose ddeletio n an d th e availability o f

document s locate di n th e Deletio n Docket . Determinatio n tha t

th e Sit e Meet s th e Criteri afo r Deletio n i n th e NC P Th e NC P specifie s tha t

EP A may delet e asit e fro mth e NP L i f "al l appropriat e responsibl e partie s o r

othe r person s hav e implemente dal l appropriat e respons e action s required " o r

"al l appropriat e fund-finance drespons e unde r CERCL A ha s bee n implemented , an dn o further respons e actio n b y responsibl e partie s i s appropriate" . EPA , with th e concurrenc e ofth e Commonwealth o f Massachusett s throug h th e MassDE P b y a lette r date d[Date] , believe s thes e criteri afor deletio n hav e bee n satisfied . Therefore , EP A i s proposin g th e deletio n ofth e site fromth e NPL . Al l ofth e completio n requirement s for

th e sit e hav e bee n me t

a s describe di n th e Norwoo dPCB s Fina l Clos e Ou t Report (FCOR ) date dSeptembe r 2009 . V . Deletio n Actio n Th e EPA , with concurrenc e ofth e Commonwealth o f Massachusett s throug h th e MassDE P ha s determine dtha t al l appropriat e respons e action s unde r CERCLA , othe r tha n operatio n an dmaintenance , routin e monitoring , an dfive year reviews , hav e bee n completed . Therefore , EP A i s deletin g th e Site fro mth e NPL .

2 3Becaus e EP A consider s thi s actio n t o b e noncontroversia l an droutine , EP A i s

takin g i t withou t prio r publication . Thi s actio n wil l b e effectiv e [insert dat e 6 0 dav s from th e dat e o f

publicatio n i n th e Federa l Register ] unles s EP A receive s advers e comment s b y [inser t dat e withi n 3 0 day s o f

thi s publicatio n i n th e Federa l Register] . I f advers e comment s are receive dwithi n th e 30-day publi c commen t period , EP A wil l publis h a timel y withdrawa l o f

thi s direc t

final notic e o f

deletio n before th e effectiv e dat e ofth e deletion , an dit

wil l no t tak e effect . EP A wil l prepar e arespons e t o comment s an d continu e with th e deletio n proces s o n th e basi s ofth e notic e o f inten t t o delet e an dth e comment s alread y received . Ther e wil l b e n o additiona l opportunit y t o comment . Lis t o f Subject s i n 4 0 CF RPar t 30 0 Environmenta l protection . Ai r pollutio n control , Chemicals , Hazardou s waste . Hazardou s substances . Intergovernmenta l relations , Penalties , Reportin g an d recordkeepin g requirements , Superfund , Wate r pollutio n control , Wate r

supply .

Dat e H . Curti s Spaldin g Regiona l Administrato r EP A Regio n 1 Fo r th e reason s se t

ou t i n thi s document , 4 0 CFRpart 30 0 i s amende da s follows : PAR T 300—[AMENDED ] 1 . Th e authority citatio n fo r part 30 0 continue s t o rea da s follows : Authority : 3 3 U.S.C . 1321(c)(2) ; 4 2 U.S.C . 9601-9657 ; E.O . 12777 , 5 6 F R54757 , 3 CFR , 199 1 Comp. , p . 351 ; E.O . 12580 , 5 2 F R2923 ; 3 CFR , 198 7 Comp. , p . 193 . 2 . Tabl e 1 o f

Appendi x B t o part

30 0 i s amende db y removin g "Norwoo dPCBs" , "Norwoo d" . 2 4