FINA L CLOS E OU

T REPORT

FOR

ROGER S ROA

D MUNICIPA

L LANDFIL L 8UPERFUN D SIT E PULASK I COUNTY , ARKANSA S

UNITE D STATE S ENVIRONMENTA L PROTECTIO

NAGENCY, APRI L 199 6ROGERS ROAD MUNICIPAL LANDFILL SUPERFUND SITE FINAL CLOSE OUT REPORT Pulaski County, Arkansas

I . INTRODUCTIO

N Thi s Fina l Clos e Ou t Repor t document s tha t the Unite d State s Environmenta l Protectio n Agenc y(EPA ) ha s complete d construction activitie s fo r th

e Roger s Road Municipa l Landfil l Superfun d sit e (Site ) i n accordanc e wit h OSWE R Directive 9320.2-3C . EPA, the Arkansa s Departmen t o f Pollution Contro l an d Ecolog y(ADPC&E) , an d the cityo f Jacksonville , conducted an inspection o f th e sit e o n Septembe r 20 , 1995 , an d determine d tha t th e EP Acontractor s an d th e cit

yo f Jacksonvill e had substantiall ycomplete d the construction an

d remedia l action activitie s i n accordanc e wit h the Record o f Decisio n (ROD ) an d the Remedia l Desig

n (RD ) work plan s an d specifications . Durin g thi s inspectio

n EP Adetermine d tha t al l remedia l activitie s wer e complet e an d tha t th

e onl y remaining activitie s wer e Operatio n an d Maintenanc e (O&M ) includin g groun d wate r monitoring .
II . SUMMARY O F SIT E CONDITIONS Background The Sit e encompasse s abou t 1 0 acre s i n Pulask i County, outsid e th e citylimit s o f Jacksonville , Arkansas , approximatel y 1 2 mile s northeas t o f Littl e Rock, Arkansas . (See Figure s 1 an d 2 . ) A n estimate d 10,000 peopl e live withi n thre e mile s o f th e Sit e an d dra w drinkin

g wate r fro

mpubli c an

d privat e wells. Les s tha n one-hal f mil e wes t o f the Roger s Roa d Municipa l Landfil l Superfun

d Sit e i s the Jacksonvill e Municipa l Landfil l Superfun d Site. Becaus e o f th e proximit yo f the site s an d th e similaritie s i n thei r feature s an d characteristics , the site

relate d activitie s fo r thes e site s wer e carrie d ou t concurrently . The cit yo f Jacksonvill e operated th e landfil l fro

mth e tim e i t purchase d the lan

d i n 1953 unti l 1974 . Ope n burning an d trenchin g wer e th e primar

ymethod s o f wast e disposa l use d a t the Site. The landfil l wa s closed i n Jul y197 3 whe n ADPC& E refuse d t o gran t a landfil l permi t becaus e o f the hig h wate r tabl e an d poo r drainag e i n the area. Specifi c wast e type s an d quantitie s wer e no t recorde d b yth e Sit e owner/operators ; however, i n additio n t o municipa l waste, severa l drum s o f industria l wast e fro ma loca l herbicid e manufacturer , Verta c Chemica l Corporatio n (Vertac) , wer e dispose dSIT E DETAIL S ROGERS ROAD LANDFILL

. JACKSONVILLE. AR 0 5 0 10 0 SCALE (FEET

)o f i n the landfill. On-sit e soi l an d abou t 3 0 decaying drum s wer e foun

d t o b e contaminate d wit h dioxi n (2,3,7,8-tetrachlo

rodibenz o (P ) dioxi n expressed a s 2,3,7,8-TCD D equivalents), th e herbicide s 2,4- D an

d 2,4,5-T , an

d th e pesticid e dieldrin. I n earl y1986 , the cit yo f Jacksonvill e fence d th e Sit e t o preven t publi c access . Althoug h the cityo f Jacksonvill e maintain s the fenc e aroun d the Sit e perimeter , th e Sit e i s stil l used recreationall yfo r huntin g b yloca l residents . The Sit e wa s adde d t o the Nationa l Prioritie s Lis t on Jul y22 , 1987 , wit h a scor e o f 29.64 . Record o f Decision Findings The Remedia l Investigation (RI ) fo r th e Site, whic h describe d the natur e an d exten t o f contamination , wa s release d t o the publi c i n Jul y1990 . Th e FeasibilityStud y(FS ) wa s als o release d a t thi s time. A60-daypubli c commen t perio d bega n o n Jul y9 , 1990 , an

d ende d o n Septembe r 7 , 1990 . I n addition, a publi c meeting wa s hel d o n Jul y18 , 1990 , t o presen t the result s o f the RI/F S an

d t o accep t publi c comment . EP Areviewe d the result s o f the Jul y199 0 RI/F S conducte d b y the EP Acontractor . Pee r Consultants , an d al l publi c comment s received. O n Septembe r 27 , 1990 , a Record o f Decisio n (ROD ) fo r the Sit e wa s issued . The selected remed yincluded :

• Excavatio n o f contaminate d soi l an d debri s containing greate r than 1 0 part s pe r billio n (ppb ) equivalen t 2,3,7,8-TCD D an

d backfilling the excavate d area;

• Transportation o f th e excavate d materia l t o th e Verta c Chemica l Corporatio n Superfun d Sit e i n Jacksonville , Arkansas ;

• Incineration o f the excavate d contaminate d materia l an d disposa l o f residual s a t Vertac;

• Steam-cleanin

g an d disposa l o f larg e items o f refus e remove d fro

mcontaminate d area s a t th e Roger s Roa d Site;

• Coverin

g soil, debri s an

d wate r meeting th e criteri a state d below wit h twelve inche s o f soil: 1 ) 2,3,7,8-TCD D concentration s >1. 0 an d ^1 0 ppb , 2 ) Cumulative Hazar d Inde x >. 7 fo r 2,4,5-T ; 2,4, 5 TP ; an d dieldrin; o r 3 ) Dieldri n >3 7 ppb• Institutiona l control s such a s fenc e maintenanc e an d land-us e restrictions ; an d

• Groun

d wate r monitoring fo r a t leas t 5 years. O n Jun e 20 , 1994 , a Consen t Decre e (CD ) betwee n EP Aan d th e cit yo f Jacksonvill e regardin g th e Sit e wa s entere d i n Federa l Distric t Court . Thi s CD an d th e C D fo r the nearb yJacksonvill e Landfil l Sit e wer e th e firs t i n th e countr

ybetwee n a municipalit yan

d EP Atha t utilize d thi s typ e o f mixe d work settlement . Unde r the agreement , EP Aperforme d th e work tha t involve d handlin

g th e hazardou s substances , including picking-u p the ho t spot s o f contamination , transportin g the materia l t o Vertac, incineration , an d decontamination . Th e cityperforme d the non-hazardou s work, includin g fencing, backfilling, grading, re-vegetating , inspection an d maintenance , installation o f additiona l groun

d wate r wells, groun

d wate r sampling an

d analysis , an

d land-us e controls . Community

Relations Activities Becaus e o f the high communit yinteres t i n the nearb yVerta c Corporation Superfun

d Site, a communityrelation s office, staffe d b yan EP Acontractor , wa s establishe d i n 1990 . Th e purpos e o f thi s offic e i s t o disseminat e informatio n t o citizen s an d th e pres s an d t o giv e citizen s a foca l poin t fo r thei r questions . A n active campaign t o notif yloca l resident s an d receiv e inpu t prio r t o the Sit e excavation an d transportation wa s conducted . Landowner s adjacen t t o the Sit e wer e visite d an d transportation wa s coordinate d wit h loca l authoritie s an d representative s o f the Littl e Roc k Ai r Forc e Bas e whic h i s located nea r th

e transportation route . Acommunit yope n hous e meetin g wa s hel d o n Augus t 22 , 1994 , t o discus s the remedia l action an

d receiv e citizen input . ASit e close-ou t ope n hous e an d ribbon-cutting ceremon ywer e hel d o n Septembe r 25 , 1995 . Remedial Construction Activities On Augus t 22 , 1995 , Ecolog yan d Environmen t (E&E) , the EP A Technica l Assistanc e Tea m(TAT ) an

d the EmergencyRespons e Clean

u p Servic e (ERCS ) contractor , Riedel-Peterson , mobilize d t o begi n remedia l operation s a t the Site. Afte r preliminar yroad work wa s completed , excavatio n o f contaminate d soi l wa s initiated . Durin g th e action, Riedel-Peterso n recontainerize d contaminate d materia l tha t wa s i n decayin g drum s an

d excavate d soil. Thi s material, along wit h investigation-derive d wast e sucha s contaminate d persona l protective equipment , wa s transporte d t o

the Verta c sit e fo r treatmen t a t th e incinerator . Confirmatio n soi l sample s wer e collecte d afte r thi s initia l excavatio n t o verif yth e degre e o f contaminan t remova l an d t o determin e the area s o f moderat e contaminatio n (2,3,7,8-TCD D concentration s >l. O an d ^1 0 pp b an

d dieldri n >3 7 ppb ) whic h woul d late r b e covere d wit h clean soil. Atota l o f 20 0 cubi c yard s o f contaminate d soi l an d 7 6 drum s o f hazardou s material s (including 19 drum s o f investigation

derive d wastes ) wer e transported t o Verta c and incinerated . Thi s i s a highe r volume tha n the 13 0 cubi c yard s estimate d i n th e ROD . Despit e thi s increas e i n volume, remedia l activitie s wen t smoothly . Incineration a t Verta c bega n on Octobe r 20 , 1994 , and ende d on Decembe r 4 , 1994 . Th e Januar y20 , 1995 , Technica l Assistanc e Repor t fo r the Roger s Roa d Municipa l Landfil l writte n b yE&E, detail s the Remedia l Actio n (RA ) activitie s performe d b y EP Aan d it s contractors . Th e tota l cos t fo r th e R Awa s $129,070.0 0 fo r the ex cavation , preliminar

ysampling , an

d transportation o f the wast e an d $1.07 millio n fo r the confirmator ysampling an

d incineratio n a t Vertac. Durin g th e fal l o f 1994 , th e cit yo f Jacksonvill e continue d regradin g activitie s an

d installe d th e thre e additiona l groun d wate r monitorin

g well s betwee n th e Jacksonvill e Landfil l an d th e Roger s Roa d Landfil l a s require d b ythe RO D an

d CD . Th e city demobilize d i n lat e Octobe r whe n heav yrain s i n th e are a made passag e throug

h th e Sit e difficult, cityactivitie s recommence d i n Jul y199 5 whe n the Sit e wa s sufficientl ydr yfo r vehicle s t o pass. Th e cityregradin g activitie s wer e complete d i n Septembe r 1995 . Alis t o f al l sit e activitie s undertake n b ythe cityi s include d i n the weekl yactivityreport s i n the Sit e file. III . DEMONSTRATION OF QUALITY ASSURANCE/QUALITY CONTROL (QA/QC) FOR CLEANUP ACTIVITIES Becaus e o f the simplicit yo f thi s action, on e wor k pla n wa s submitted whic h encompasse d th e Remedia l Desig n (RD ) an

d R A activitie s a t the Site, consisten t wit h the RO D an d the CD . Th e QualityAssuranc e Projec t Plan fo r the R Adetaile d the stric t sampling an

d analytica l program . Al l procedure s an d protoco l fo r confirmator

ysampl e analysi s include d i n thi s documen t wer e i n accordanc e wit h EP

Aprocedures . Th e selection o f the location s fo r confirmator

ysampling an

d a graphica l presentation o f th e concentration s o f contaminant s a t thes e location s ar e documente d i n the Januar

y20 , 1995 , Technica l Assistanc e Repor t (the Remedia l Actio n Completio n Report) fo r th e Roger s Roa d Municipa l Landfill .

6Atota l o f 9 3 soi l sample s wer e taken durin g th e R At o confir mattainmen t o f clean-u p standards . Sample s wer e collecte d fro m point s o n a 1 4 x 1 4 foo t gri d pattern extendin g outside o f the boundar

yo f contaminatio n a s establishe d during the Remedia l Investigation . Eighty-si x o f thes e sample s wer e analyze d fo r dioxi n an

d relate d compound s an d 1 3 wer e analyze d fo r dieldrin, i n accordanc e wit h the QualityAssuranc e Sampling Plan (QASP ) prepare d fo r the Remedia l Actio n b yth e TAT. EP Aprovide d direc t oversigh t o f the excavatio n an d confirmator

ysoi l samplin

g activities . Th e Jacksonvill e Communit yRelation s Offic e maintaine d administrativ e suppor t fo r th e projec t fiv e day s a week. The QA/Q C progra

mutilize d throughou t the remedia l actio n wa s sufficientl yrigorou s an d wa s adequatel ycomplie d wit h t o enabl e EP

At o determin e tha t al l analytica l result s ar e accurat e t o th e degre e neede d t o assur e satisfactor yexecutio n o f th e remedia l action consisten t wit h th e RO D an d th e RD/R

Awork plan.

IV . MONITORING RESULTS Th e QualityAssuranc e Sampling Plan explaine d th e con firmator ysamplin

g an d analytica l progra

mfo r the remedia l action. Th e implementatio n o f thi s pla n wa s detaile d i n th e Technica l Assistanc e Report. Initiall ythe confirmator ysampling involve d a 1 4 x 1 4 gri d aroun d al l th e area s tha t wer e visibl y contaminate d o r show

n t o b e contaminate d during th e remedia l investigation . Sampl e location s tha t di d no t mee t remedia l actio n goal s an

d al l the adjacen t gri d location s wer e the n re excavated , an

d the entir e re-excavate d are a wa s resampled. Thi s proces s wa s continued unti l al l gri d location s me t remedia l actio n goals. A s pe r the RO D an

d the CD , area s wher e 2,3,7,8-TCD D equivalen t concentration s wer e greate r tha n o r equa l t o 1 0 pp b wer e excavate d an

d the materia l wa s transporte d t o Verta c fo r incineration . I n severa l areas, thi s involve d excavatio n deepe r than th e on e foo t projecte d fro mpreviou s Sit e studies . Atota l o f 20 0 cubi c yard s o f wast e materia l wa s removed. Fina l confirmator

ysampling showe d tha t remova l o f thi s quantityo f materia l wa s sufficien t t o mee t remedia l actio n goals. Th e complet e result s o f the confirmator ysamplin

g ar e give n i n th e Technica l Assistanc e Repor t fo r the Roger s Roa d Municipa l Landfill. Th e dat a containe d i n thi s repor t demonstrat e tha t cleanu p level s specifie d i n the RO D wer e achieved. Groun d wate r sample s taken i n Novembe r 1994 , Jun e 1995 , an d Decembe r 199 5 di d no t sho w dioxi n contamination , no r di d the y sho w concentration s o f organi c material s o r inorgani c (metals) material s abov e acceptabl e health-base d levels.V . SUMMARY O F OPERATIO NAN D MAINTENANC E Sit e O& M activitie s whic h wil l b e performe d b yth e cityo f Jacksonvill e include routine sit e inspection s t o ensur e tha t positiv e drainag e (a s define d i n th e CD Statemen t o f Work) i s occurrin g an d maintenanc e o f perimete r fencing. Thes e activitie s wil l maintai n th e protectivenes s o f th e remedy. Th e cityo f Jacksonville , a s agree d upo n i n th e CD an d accompanying Statemen t o f Wor k an

d a s detaile d i n th e R AWork Plan, ha s assume d al l responsibilityfo r O& M a t the Site. I n addition, unde r th e CD , the cit yagree d t o perfor

mthe groun

d wate r monitorin

g fo r a t leas t fiv e year s a s require d b yEP At o ensur e tha t th e remed ywa s effective an

d operatin

g properly . Plan s fo r O& M ar e i n plac e an d ar e sufficien t t o maintai n the protectivenes s o f the remedy . Th e cityi s fulfillin

g it s obligatio n t o perfor mthe O&M. Th e sit e i s fence d an d th e cityo f Jacksonvill e i s controllin

g acces s t o th e sit e groun d water, s o the institutiona l control s ar e i n place. VI . PROTECTIVENESS Thi s sit e meet s al l the sit e completio n requirement s a s specifie d i n OSWE R Directive 9320.2-3C , Procedure s fo r Completio n an d Deletion o f Nationa l Prioritie s Lis t Site s an d Update. Specifically , confirmator ysampling verifie s tha t th e sit e ha s achieve d the RO D cleanu p standards : al l contaminate d soi l an d debri s containin

g greate r than 1 0 par t pe r billio n (ppb ) equivalen t 2,3,7,8-TCD D wer e excavate d an d al l soi l an

d debri s wit h 2,3,7,8-TCD D concentration s >1. 0 an d ^1 0 ppb , o r wit h a Cumulativ e Hazard Index >. 7 fo r 2,4,5-T ; 2,4, 5 TP an d dieldri n wer e eithe r excavate d o r covere d wit h on e foo t o f clea n soil. I n addition, n o soi l wa s lef t onsit e wit h a dieldri n concentration abov e 3 7 ppb. Confirmator ygroun d wate r samplin

g an d backfillin

g th e sit e wit h clea

n soi l provid e furthe r assuranc e tha t the sit e wil l n o longe r pos e a threa t t o huma n healt h o r th

e environment . Th e onl yremaining activitie s t o b e performe d ar e O& M activities , includin g groun d wate r monitoring, bot h o f whic h the cit

yo f Jacksonvill e ha s guaranteed . Abibliograph

yo f al l report s relevan t t o th e completio n o f thi s sit e unde r th e Superfun d progra m i s attached . VII . FIVE YEAR REVIEW Prio r t o sit e cleanup , contaminatio n a t the Roger s Roa d Landfil l wa s ver

ylocalized . Th e majorit yo f th e landfil l wa s neve r contaminate d abov e health-base d cleanu p levels . A t thi s time, the Roger s Road Municipa l Landfil l Superfun d Sit e ha s bee n cleaned-u

p t o residentia l standard s and , therefore , froma health-ris k standpoint , the landfil l ha s n o land-us e restrictions . Becaus e the sit e i s located i n a n are a 8historicall yused fo r tras h dumping, however, physica l hazard s

caused b yitems mad e o f glas s an d meta l maystil l exist. Th e ultimat e us e o f th

e sit e lan

d wil l b e a t the discretio n o f th e owner s o f th e land, on e o f whic h i s th e cityo f Jacksonville . Becaus e th

e RO D call s fo r institutiona l control s limitin g groun d wate r us e o n an

d immediatel ydowngradien t o f th e site, a five-yea r revie w i s necessary . Afive-yea r review i s usuall y conducte d fiv e year s fro mth e dat e o n whic h th e firs t contrac t i s awarde d fo r work t o install, construct , o r implemen t the remedy. Acontrac t wa s awarde d t o E& E o n Augus t 4 , 199 4 fo r the RA . Therefore , EP

Aexpect s t o complet e th e firs t Five-Yea r Revie w o n o r befor e Augus t 4 , 1999 . Furthe r five-yea r review s will b e conducte d pursuan t t o OSWE R Directive 9355.7-02 , "Structur e an d Component s o f Five-Yea r Reviews" o r othe r guidanc e wher e i t exists .

9 

# APR3 0 1996 " DateVIII. BIBLIOGRAPHY



### 1 . U.S . Environmenta l Protection Agency, Record o f Decision, Roger s Road Municipa l Landfil l Superfun d Site, Septembe r 1990 . 2 . Cityo f Jacksonville , Remedia l Actio n Work Plan, Septembe r 1994 . 3 . Ecolog

yan d Environment , Technica l Assistanc e Repor t (include s Remedia l Actio n Samplin g an d Analysi s Plan, Quality Assuranc e Projec t Plan, Healt h an d Safet yPlan, an

d Remedia l Actio n Closeou t Report) , Januar y1995 . 4 . U.S . Environmenta l Protection Agency, Repor t on the Firs t Annua l Groun

d Wate r Sampling Even t Unde r the Consen t Decre e Betwee n EP

Aan d the Cit

yo f Jacksonville , Apri l 1995 . 5 . U.S . Environmenta l Protectio n Agency, Repor t o n th e Resampl

in g o f the Jacksonvill e an d Roger s Groun

d Wate r Monitorin

g Wells, Septembe r 1995 . 6 . U.S . Environmenta l Protection Agency, Pre-fina l Inspectio n Report, Septembe r 22 , 1995 . 7 . U.S . Environmenta l Protectio n Agency, Preliminar

yCloseou t Report, Septembe r 25 , 1995 .

10