# FINA L CLOSEOU T REPOR T

MARTI N MARIETTA/SODYEC O SUPERFUN D SIT E MECKLENBUR G COUNTY , NORT H

CAROLIN A

Augus t 25,201 1


# lilllillilli i 1083887 5 

# 1 1FINA L CLOSEOU T REPOR T

MARTI N MARIETTAVSODYEC O SUPERFUN D SIT E MECKLENBUR G COUNTY , NORT H CAROLIN A I INTRODUCTIO N Thi s Fina l Close-ou t

report document s tha t

th e U.S
. Environmenta l Protectio n Agenc y ha s determine din accordanc e with Clos e ou l Procedure s fo r Nationa l Prioritie s Lis t

Site s (OSWE RDirectiv e 9320.2-22 ) that all appropriat e respons e action s a t th e Marti n Marietta/Sodyec o Superfun dSite hav e bee n successfull y implemented
. I I SUMMAR Y O F SIT E CONDITION S Backgroun d Th e Marti n Marietta/Sodyec o Superfun dSit e (EP A ID : NCDOO1810365 ) i s locate din Charlotte , Mecklenber g County , Nort h Carolina
. Th e Site i s locate dwithi n a49 2 acr e property referre dt o a s th e Sando z Chemica l Corporation , Moun t Holl y Plant , an di s locate do n Highway 2 7 Wes t i n Mecklenbur g County , North Carolin a(se e Figur e 1)
. Th e Site i s comprise do f fiv e noncontiguou s area s locate dwithi n th e facility' s boundaries
. Manufacturing , administrativ e an dstorag e facilitie s cove r abou t 36 2 acres . Th e remainin g balanc e ofth e lan di s covere db y woodland s an dgrasse dareas . Th e entir e 492-acr e facilit y i s regulate dunde r

RCR A authority
. DyeStuf f Compan y bega n operation s a t th e facilit y i n 1936
. Initially , th e plan t produce dliqui dsulfu

r dye s fro mpurchase dra w materials
. America n Mariett a(whic h becam e Marti n Mariett ain 1961 ) purchase dth e facilit y in 1958
. Marti n Marietta' s product s include dva t dyes , dispers e dye s an dspecialty chemica l product s for th e agrochemical , electronic , lithographic , pigment , plastic , rubbe r an dgenera l chemica l industries
. Sodyec o Inc. , purchase dth e plan t

fromMarti n Mariett ai n 1983
. Sodyec o Inc.' s earl y operation s produce dwaste s that consiste do f

low-volume , aqueous, acidi c o r alkalin e stream s containin g inorgani c salts , whic h wer e discharge duntreate dt o th e Catawb aRiver
. Later , Sodyec o Inc.' s operation s wer e expande dan dinclude d organi c solven t

wastes . Amon g th e material s place di n landfill s a t th e Sit e wer e residua l distillatio n tar s fromsolven t

recovery operations , empty drum s an dcartons , discarde dchemicals , off-specificatio n products , genera l plan t

waste s an dconstructio n debris
. Th e firs t indicatio n ofpotentia l groundwate r contaminatio n a

t th e Site wa s th e discovery o f organi c solvent s in th e Sodyeco' s potabl e wate r wel l i n Septembe r

1980
. Contaminate dgroundwate r wa s als o detecte di

n wate r suppl y well s adjacen t

t o th e Sodeyc o Plant
. In Jun e 1982 , ahazardou s wast e sit e investigatio n wa s conducte db y EPA
. Result s o f surfac e water , groundwate r an dsedimen t

sample s reveale dth e presenc e o f organi c contaminant s i n groundwate r

an dsmal l amount s in th e surfac e water . Th e Sit e wa s propose dt o NP L o n Decembe r 30 , 198 2 (4 7 FR58476 ) an dfinalizedon th e NP L Septembe r 8 , 198 3 (4 8 F

R40674 ) du e t o th e presenc e o f potabl e wate r

well s withi n athre e mil e radiu s an dth e presenc e o f tw o municipa l surfac e wate r intake s o n th e Catawb aRive r Th e Site contain s five contaminate darea s designate da s A , B , C , D , an dE (se e Figur e 2)
. Are aA i s a n on-sit e landfil l that

operate dbetwee n th e 1930 s an d1973
. Are aB i s a n on-sit e landfil l tha

t operate d betwee n 197 3 an d1978
. Are aC consist s o f thre e covere dpit s tha

t containe dth e remain s o f laboratory an d productio n samples , distillatio n tars , an dwast e solvents
. Th e tw o norther n pit s i n Are aC wer e excavate d i n Marc h 198 1 an dth e content s wer e trucke doffsit e t o alandfil l in Pinewood , Sout h Carolina
. Removal ofth e remainin g pi t

wa s conducte di n 1983
. Afte r excavatio n activities , are aC wa s regrade dan dplante d wit h grass . Are aD formerl y containe dtw o wastewate r settlin g ponds
. Th e pond s wer e take n fro mservic ein 1966 ; on e wa s cleane dou t in 197 3 an dth e othe r

betwee n 197 6 an d1977
. Are aE i s locate d down-gradien t

ofth e ol dplan t

an dmanufacturin g area . N o wast e i s know n t o hav e bee n dispose do f in thi s area . Th e curren t

lan dus e i s heav y industrial
. Ther e ar e tw o busines s tenant s locate dwithi n th e facilit y tha t occup y onl y afew buildings
. Th e majorit y ofth e former

manufacturin g facility , includin g Area s A-E , i s no t i n use . Mos t

ofth e lan dsurroundin g th e Sit e i s primaril y undevelope dwoodland
. Th e Sit e i s currentl y fence dan drequire s security clearanc e for access . Th e groun dwate r aquife r underlyin g th e Site i s currentl y no t

use da s adrinkin g wate r

source ; however , ther e are n o control s preventin g tha t use . Althoug h th e groundwate r

i s no t bein g use dfo

r drinkin g purposes , th e aquifer i s classifie da s aClas s IIA aquifer , a curren t sourc e o f drinkin g water . Ther e are n o residentia l propertie s tha t exis t abov e o r nea r th e groun d wate r contaminan t

plum e a t th e Site
. Remedia l Investigatioe/FeasibiMt y Stud y I n February 1986 , Sando z Chemica l Corporation , th e facilit y owner , entere dint o a

n Administrativ e Orde r o n Consen t

wit h EP A t o conduc t

th e RI/F S t o evaluat e th e exten t o f contaminatio n an didentif y feasibl e alternativ e remedies
. Result s ofth e R

I showe dth e groundwate r i n th e five indentifie dCERCL A area s A throug h E wer e contaminate dwit

h toluene , chlorobenzene , ethylbenzene , xylene , o-dichlorobenzene , tetrachloroethylene , an dtrichloroethylene
. Th e Site pose da n unacceptabl e carcinogeni c ris k t o human receptor s vi aingestio n o f

local wate r

fow l an dsmal l mammal s an dth e ingestio n o f groun dwater . Th e sit e als o pose da

n unacceptabl e non-carcinogeni c ris k t o human health vi ainhalatio n intak e fromAre aD an d th e ingestio n o f

onsit e groundwater
. Selecte dRemed y EP A issue dth e RO D for

th e clean-u p ofth e Sit e in 1987
. Th e remedia l actio n objective s a t th e site wer e t o protec t huma n health an dth e environmen t fro mexposur e t o contaminate don-sit e soil s throug h inhalatio n anddirec t

contact , an dt o restor e contaminate dgroundwate r t o level s protectiv e o f

human healt h an dth e environment
. Th e cleanu p consiste dofth e followin g elements : •Extraction , treatmen t

anddischarg e o f

contaminate dgroun dwate r fo r al l five areas ; "Excavatio n an doff-site incineratio n fo r Are aD ; •Installatio n of alandfil l cap fo r Are aB ; and , •Implementatio n o f

on e ofth e followin g activitie s afte r treatability studie s wer e undertake n fo r Are aC , including : 1 ) flushing; 2 ) soi l washing ; 3 ) therma l processing ; o r 4 ) in-sit u steamstrippin g an d excavatio n an doff-site incineration
. N o soi l remediatio n wa s deeme dnecessary fo r CERCL A Area s A an dE durin g th e RI/FS
. Th e initial cleanu p approac h fo r Are aC wa s a

n interi maction
. Th e final cleanu p plan fo r Are aC was outline di n a199 4 Explanado n o f

Significan t

Differenc e (ESD) , andinclude din-sit u soi l flushing, withth e flushing wate r bein g capture dan dtreate db y th e existin g groun dwate r treatmen t

system . Th e ES D als o include dconfinuatio n of avacuu mextracfio n pilo t stud y t o treat

soi l stock-pile don sit e that wa s contaminate dwit

h VOCs
. Th e vacuu mextractio n metho deventuall y prove dineffectiv e an dEPA issue da secon dES D in Novembe r 1998 , whic h require doff-site treatmen t an ddisposa l fo

r th e stock-pile dsoi l i n Are aC
. Remedia l Constructio n Activitie s Installatio n ofth e asphal t cap fo r Are aB wa s complete di

n Octobe r 1989
. Th e off-site treatmen t an d disposa l o f

Are aC stockpile dsoil s wa s complete din Marc h o f 1999
. Th e installafio n o f a n in-sit u flushing syste mfo

r th e Are aC soi l wa s complete ddurin g th e thir dwee k o f Septembe r

o f 1999
. Remediatio n o f

Are aD soi l wa s complete di n Apri l 1999
. A tota l o f 39 7 ton s o f

soil s wer e remove di

n tw o phases , an dsen t

off-site fo

r treatmen t

an ddisposal
. Th e groundwate r

syste mwa s designe dt o remove dVOC s fromth e shallo w (Area s C an dD) , intermediat e (Area s A/B , D an dE ) an ddee p aquifer s (Are aD)
. Th e groundwate r remediatio n involve d extractio n throug h recovery well s an dtreatmen t in th e onsit e RCRA wastewate r treatmen t

facility
. Th e treate dwate r

i s discharge dto th e Catawb aRiver , a s regulate db y th e Nationa l Pollutan t Discharg e Eliminatio n Syste m(NPDES ) program . Th e groundwate r extractio n well s fo

r Area s A throug h E wer e installe d1990
. Th e contaminate dgroundwate r continue s to b e treate di

n th e RCRA-regulate don-sit e wastewate r

treatmen t

facility , alon g wit

h contaminate dgroundwate r fromth e RCRA-regulate dportion s ofth e facility
. Th e remedia l action s wer e complete db y th e responsibl e party , wit h oversigh t

by th e stat e RCR A program . Th e Preliminary Close-Ou t Repor t wa s issue dby EP

A o n Septembe r

29 , 1999
. Sinc e th e groundwate r

remed y was constructed , implementatio n ha s bee n conducte dunde r th e facilitie s RCR A permi t

an dauthority
. Th e facility' s permi t incorporate dth e groundwate r remediatio n goal s an d cleanu p level s establishe din th e 198 7 RO D an drequir e IC s for limitin g th e us e o f

groundwate r

from aquifer s impacte db y site contaminants
. At th e tim e th e Site wa s liste do n th e NPL , th e RCR A Hazardou s Soli dWast e Amendment s (HSWA ) provision s hadno t bee n promulgated , an dit wa s necessary t o us e CERCL A respons e authorit y t o addres s th e contaminatio n a t th e Site outsid e ofth e regulate dRCRA unit s (Area s A - E)
. Sinc e th e facility' s RCR A permi t an dauthority hav e bee n use dt o implemen t th e groundwate r

cleanu p an dHSWA no w provide s th e legal authority necessary t o continu e t o th e treatmen t unti l cleanu p level s ar e achieve din th e CERCL A area s outsid e ofth e RCRA regulate dunits , EP A ha s conclude dtha

t th e groundwate r

risk s originall y identifie di n th e 198 7 RO D n o longe r nee dt o b e addresse db y CERCL A authority
. Institutiona l control s (ICs ) wer e als o necessary becaus e th e selecte dremed y resulte di n hazardou s substances , pollutants , o r

contaminant s remainin g a t th e Sit e abov e level s tha

t woul dallo w for

unlimite d us e an dunrestricte dexposur e i n th e soils
. Mor e specifically , th e remed y cappe dsoi l i n plac e i n CERCL A Area s A an dB , a s wel l a s lef t contaminate dsoil s covere db y clean soil s i n plac e i n Are aD
. Thes e Declaration s o f

Perpetual Lan dUs e Restriction s wer e implemente do n Augus t 10 , 201 1 a

t Th e Offic e o f th e Registe r

o f Deed s fo r Mecklenbur g County , North Carolina
.Th e 198 7 ROD , a s amende db y th e ESDs, was further amende dt o selec t

n o further

CERCL A acfio n fo

r groundwate r

andrequire dinstitutiona l control s preventin g disturbanc e ofth e cap s an dpreclud e direc t contac t wit h an y onsit e soil s impacte db y sit e contaminants
. Th e RO D amendmen t wa s signe do n Jul y 5 , 2011
. II I MONITORIN G RESULT S Contaminate dsoil s abov e industria l cleanu p level s wer e excavate dan ddispose do f off-site o r

wer e cappe di n plac e in Area s B , C an dD
. Post-excavatio n samplin g wa s conducte dan ddescribe di n th e remedial actio n report

date dSeptembe r

29 , 1999
. I V SUMMAR Y O F OPERATION S AN D MAINTENANC E REQUIRE D Fo r CERCL A Area s A , B , an dC , th e Clarian t Corporation , unde r

th e existin g RCRA C permit , i s conductin g th e long-termmonitoring , an doperatio n an dmaintenanc e activitie s a t th e Site
. Th e primary activitie s associate dwith O&M , associate dwith th e site , include : "Visua l inspectio n ofth e cap , assurin g tha t it i s stabl e an dsound ; an d •Monitorin g o f

institufional control s Operatio n o f

th e wate r treatmen t plan t an dassociate dgroundwate r monitorin g i s bein g conducte dunde r th e RCRA Subfitl e C permi t an di s no t

par t ofth e CERCL A response . V DEMONSTRATIO N O F CLEANU P ACTIVIT Y QUALIT Y ASSURANC E AN D QUALIT Y CONTRO L Activitie s a

t th e site wer e consisten t

wit h th e ROD , an dsubsequen t ESDs
. Th e R D wor

k pla n incorporate d al l EP A an dStat e quality assuranc e an dquality contro l (QA/QC ) procedure s an dprotocol
. EP A analytica l method s wer e use dfo

r al l validatio n an dsample s take n durin g th e RA
. Th e QA/Q C programuse dthroughou t th e RA wa s rigorou s in conformanc e wit h EP A an dStat e standards ; therefore EP A an dth e Stat e determine dthat al l analytica l result s ar e accurat e t o th e degre e neede dt o assur e satisfactor

y executio n ofth e R

A an dar e consisten t

wit h th e RO D an dth e R

D plan s and specification s V I FIV E YEA RREVIE W Thre e Fiv e Yea

r Revie w Report s fo

r th e Site hav e bee n issued , in 1996 , 200 2 an d2007
. Th e 200 7 five yea r revie w report

conclude dtha

t th e remed y selecte di

n th e RO D i s protectiv e in th e shor t term , but recommende dfollow-u p action s t o analyz e th e extractio n well s for thei r effecfivenes s in addressin g groun dwate r

contamination , conduc t

maintenanc e o n th e Are aB cap , an dt o evaluat e th e typ e o f IC s that shoul db e implemente da

t th e Site
. Al l recommende daction s hav e bee n addressed
. Additiona l groundwate r

studie s are bein g conducte dt o addres s issue s identifie din th e 200 7 five-year revie w report unde r RCRA oversight
. Thes e activitie s include dinstallatio n o f additiona l groundwate r

extractio n an d monitorin g well s in Area s D an dE
. Thes e activifie s wer e complete din 200 7 an d2010
. Repair s t o surficial crack s o n th e Are aB ca

p wer e complete di n 2008
. EPA incorporate dinsfitutional control s int o adecisio ndocumen t

i n th e Jul y 5,201 1 ROD
. Th e IC s preventin g disturbanc e ofth e cap s an dpreclud e direc t contai n with an y onsit e soil s impacte db y sit e contaminant s wer e implemente di n Augus t 201 1 an dfileda

t Th e Offic e ofth e Registe r

o f Deed s for

Mecklenbur g County , Nort h Carolina
. V H SIT E COMPLETIO N CRITERI A Thi s sit e meet s al l th e sit e completio n requirement s specifie di n OSWE RDirectiv e 9320.2-22 , Close-Ou t Procedure s fo

r Nafional Prioritie s Lis t

Sits
. Al l CERCL A remedia l activifie s specifie di n th e ROD , RO D Amendmen t

an dESD s a

t th e Marti n Marietta/Sodyec o Sit e ar e complet e an dth e Sit e pose s n o unacceptabl e ris k

t o huma n health o r

th e environment
. Th e onl y remainin g CRECL A activitie s t o b e performe da t

th e Sit e ar e O& M an dfive-year reviews
. Th e contaminate dgroundwate r at th e sit e i s bein g addresse dunde r

th e RCR A correctiv e actio n permi t an da s aresult , CERCL A actio n i s no t necessary . Therefore , EP A ha s determine dtha t n o further

respons e actio n i s necessar y at th e Site
. VII I AUTHORIZIN G SIGNATUR E U.S
. Envir

i f¥/5ak\jJit.
. Hill , Directo r ^ '"Superfun dDivision
Date : 

# ^^r// /BIBLIOGRAPH Y

EPA Recor do f

decision : Marti n Marietta/Sodyec o Site : EP A ID NCD001810365
. Charlotte, ' Mecklenbur g County , Septembe r 198 7 Explanatio n o f

Significan t

Difference s fo

r th e Marti n Marietta

/ Sodyec o Site : prepare db y USEP A Issue d Novembe r

199 8 Amende dRecor do f

Decision : Marti n Marietta/Sodyec o Site : EP A ID NCD001810365
. Charlotte , Mecklenbur g County , Jul y 5 , 201 1 Preliminary Closeou t

Report : Marti n Marietta

/ Sodyec o Site , prepare db y Usepa , Issue dSeptembe r 29 , 199 9 Declaratio n o f

Perpetua l Lan dUs e Restriction s Fo r A Federal Superfun dSite : Clarian t Corporafion , marti n Mariett aSuperfun dSite , Charlotte , Mecklenbur g County , Nort h Carolina
. Recorde dAugus t 10 , 201 1FIGUR E 1 (Sit e Locafion )FIGUR E 2 (CERCL A AREA S A-E )