third five-year review report - records collections
TRANSCRIPT
T h lied I' ive-'Y ear Revi ew R epo ftfor
The W e s t e r n S a n d and Gravel Supcrfund SiteBurr i l lv i l l e and North Srni I h field
P'rovudenc e County, Rhode 1 si <j n d 0 2 8 9S>
September 2003
Prepared by:The Uni ted Stal.es Em v iro am en tal P'roteci.ion A.genc;
Region 1, New England13 ositon., Mas;s achuse ti.s
"llljll" Illllllllll INI Jlr Illk
A pprovcd by: Date:
Susan Studliem, Acting DirectorOffice of Site Remedial.] on and RestoTationL.S. EPA, New England
Table of Con te 111 l:sS j: citjioiti !Ej[!Jj[L3!!!j!l!E!3!]!yU!
LIST OF ACRONYMS Hi
EXECUTIVE SUMMARY iv
F'h'fi-Yeair1 Review SnIKIinanry Ftiroii v
1.0 INTRODUCTION \
2.0 SITE CHRONOLOGY 2
3.0 BACKGROUND 3
3/1 Physic;;!I Oliiiraciteirislics 3
3.2 Land aimcl Resource Use ;!>
3.3 Nis'lory of ContainriiiniailtiDiri !!
3.4 In htiiall Response -\
:i.!i Basis for T.iikinig Action =1
4.0 REMEDIAL ACTI'ONS 5
4.11 Operable Uiniiil 1 Ri-trnedy !:ielecl:ion/lliinpllemeitiil:atioini :!i
4.;!! Operable Uiniit 2 Remedy !:iele<(:l:ion/linplleirie!nil:atioin ::i
4.3 Operable Unit 3 Remedy SiiiEileciion/lniplleineiniliation <(>
A A Syslteirn 0>peraltion!iJOpiE!ratioo iiincl Mli-iiinile nance (O<!liNI) 8
5.0 PROGRESS SINCE THE LAST FIVE YEAR REVIEW 8
6.0 FIVE-YEAR REVIEW PROCESS 11
7.0 TECHNICAL ASSESSMENT 14
7,1 Technical Assessniieirnl: Syinniiifiiry 15
B.O ISSUES 16
9.0 RECOMMENDATIONS AND FOLLOW-UP ACTIONS 16
10.0 PROTECTIYENESS STATEMENT 17
11.0 NEXT REVIEW 19
12.0 AFIP EN DICES 17
Appendices
Append is A Site MapAppendix El Tables Documenting; Remedy PerformanceAppend i x C Fi gures Document.) nig; R emedy Perfbrmanc eAppend i:x D Annual Isoc one e ml ration MapsAppendix E! Piezomelric Data & GioiimcKvater How MapsAppendix F September 2002 Site Inspection ReportAppend ix G PhoLographiic Surmrniiuy o f!:! ite Co nidi t ions
LI STOP AC RON VMS
AIRAR Applicable or Relevant and Appropfiate Requirenrient
CAMU Corrective Action Management Unit
BSD liixplanation of Significant DifferenceGRI/FS Ground water Remedial IriivestiqatioiVFeasibi'lity StudyMCL Maximum Cointanni riant LevelMCLG Maximum Contaririinant Level GoafNCR National Conlinqencv Plan
National lllmissiDn Standards for Haz:afclous Air Pollufcanitss
Potentially Resijxinsible P<3i["|]/r
PSD Perforrninq Settling IDefendlantRA Reirnedii-il ActionRAO Remedial Action ObjectiveRD Remedial DesignRII/FS Remedial InvesitiqatJon/Rscisibility Stud/RIDEM Rhode Island Departrnerut olf Enviironrriental ManaqernentROD
"SDWA"Record of DecisiionSafe bnnki'nq Water Aci
III!
[This page imlantional\y left blank.]
ii VL I
The purpose of thus five-year rev iew us to de termine whether the remedial actions al t.he WesternSEinchS: Gravels lie. located p r i m a r i l y in Burri I Ivi I I e, and pa in i a l l y in North Srni lh field. Providence County.Rhode [ i s l and ( I h e Site) are protective of human heal lh and ( h e e n v i r o n m e n t and f 'uncdoming us designedThi & five-year rev iew is for I he enl ire Siile (0 U si I. II an d 1 1 1 ) The Umite A Si Eil s:s 1: n vnroii irnen tal Prolec tion
c o v e r i n g I he years. 1998 t h r o u g h 2003.
The Site was a sand and gravel quarry operation from I ' J S i t u n t i l I '3 '7S From 1 9 7 5 to A p r i l 1979,a portion of the Site was used for the disposal of l iqu id wastes including chemica l s and septic waste.Unpe rrni tl eel waste =, we. re di sposed o fail the S ite and over time, some o f t Ii e waste s pene (rated I he porou s soi Iand contarninaled the ground wEite i r In 1979. ha.i:ai.pdous waste.;, were no longer accepted at the Site, and inMia rch I')!!() EPA co ncluc ted a reinova I act ion at the Site du r ing which approxi rnately 60,000 gallons o f VOC-contaminated l iquids were pumped from lagoons. In 1982. t h e Rhode Is land Department of Envi ronmenta lManagement (RIDEM), began a groundwater reciirculation svslern in an effort to control the spread ofgroundwaler co nta mm ation 1 n S ept ember 19H3, the EPA ad d ed 1 he S it e to the CEiRCL A Na ti onall Prior it iesList (NPL).
EPA h as i ssued three Rec ord o f Deci sionsi (ROD) for tl n s S it e Under I h E: first RO D ( 19 84). wa terfillers were installed on pnvEi te well's until a permanent water supply system WEIS cons t ruc ted lo serve thea f'fected are a (appro?! irn ate ly 56 pairce I s ) in 1992. The second RO D (1985) add ressed contain mate cl soi Is atthe Si te. Contain ina ted soi Is were exc availed and eon sol ida ted i ri a de signa ted area w ithin the S ite. A R C R ASu b t i t le C c ap wa -. m si ailed ove r I he two- acre soi I <A isposall a rea i n I') '(! 7 Thi s area of the Si te was graded.and l he cap and graded area were fenced and posted with w a r n i n g signs The fenced area of the Sitecomprise s app ro >:inrial elv six (6) acres. Posit-c leisure rnon il o r ing and ins pec t ion s of the cap a ncl graded Siteareas are ongoing ETA issued the t h i r d ROD in 1991 to address groundwater co nta mm Eil ion The.groundwater rernedyselecled for the Site is rnomlored natural attenuation until inlernnri cleanup levels havebeen rnel, site monitoring and i r t s l i l u t i o r i E i I controls The 1991 ROD includes a contingency remedy foracti ve pump and I rea t , whi ch takes effec t in 1 h e event l:h at na tura I afte n ual ion doe -. not oc cur al the predi ctedrale.
The Eiii 'sessiirient of this, f ive-year rev iew found that the remedies continue to f u n c t i o n as designed.The v« Eil er =,u pp ly s ys tern is o pera ted and rn amtai ned safe ly The I andfi I I c ap is in ex eel len t conditi o n and isbeing well maintained. Annual data reports demons!rEile that na tu ra l at tenuation of (he groundwaler isprogress ing at the pred ic ted ra tes for the s.e Iec1.ec! indi cator corn pounds. 13 ecause the rent edt a I actions at al II h e Operable U n i t s (RODs 1, 2 and 3) at the Weslern Sand and Gravel Site are protect ive, the Site i sprotective of h u m a n health and the environment
fib is page intend oral ly left hhink.|
§iil:e Minnie: Western Sand & GravelEPA JO: RID009764929
City/Gouirillv: I:kii7illville> and N Srnithliiekl, Providence 01:
NPL sttaliuis: RnalRenirietiliiEiltioiii : OU 1 and OU 2 complete. Oil 3, monitored natural Eitteniiation i;> .inder.vay.
llfliulltiipleOI.]®? VES coiiniplelJoiri date: 1 ;>/;>2/ll992
L(!'iJid E::PA
Ani'tltor iriiinriiE!: Jarnes M Biiiiiiiiiiiiiiiimiiiiiiiiiiiiiiimiiiiiiiiiiiiiiiii
Amlhor Itillle: Rernedicil
iod: December 2:002' to Sep'teirnber 2:003of Sirl IEI i inspect iron: March 199&, June 1'E)98, September 1998, December 1908, March 1999,
June 1999, September 1999, December 1999, Mlarch 2000, .June 2000, S(?pternber 2000, December 2:000,March 2001, June1 2001, Seplernbeir 2001, Mlarch 2002, September 200!! (site inspeclionsi were? concluded artthe time of Jhe iJf'^yfjdW'51!!-1! 'HIJJEi!'1"^1 !JyiJ(!!:s! > i!i'-!!3|y)j! ??"[!••[•
Review rumribi'r: 3 (third)TiniC|j:|iE!iriirij;| adjoin: Previous l:Kre-Year F'tewiew Report
Tirii(][i:;iE!rini:j acjjioiri date (fmm WastcUW]: ff?Ki®n 998
There were no health based or env i ronmen ta l issue si ident i f ied during this; five-ye Eir review period
I'll EI was m i s s i n g flroirm the 2002 Data Report (stream staff gauge res id ing ; , ) due to drought relatedcond i t ions and conditions created by indigenous wi ld l i f e (a beaveir dairn) w h i c h prevented sampl ing:re ' iv-> from l E i k m g a c c u r a t e reading!) ofl.he stream staff gaiigcs
Doring routine i n sped ions, small t rees were observed to have taken root along side and on top of thecap As observed, any vegetative matter with the potent ia l to affect the i r i t eg i r i ry of the cap wasremoved.
Rec:o nn nuein di-i'tiio ns and R>l low-imp Adtiioirw::
Field crews will I ex tend the markings on the sUiff'gauge >. »o> that reading!; d u r i n g low flow/d rough!coind iti'O ns can be acciirate ly measu red during smltiseque nt airinua I rnomit air ing e vemls. Since some of thestaff gaug,e!) have been upset (i .e. , knocked over), all gEiuges wi l l l>e r e - c a l i b r a t e d pir ior to anysubsequen t annual monitoring events.
Continue to m o n i t o r ceip (bir p o t e n t i a l l y woody vegetation find remove as: necessary.
Protective nesss 8teitemenil(!!i |:
:le res idents in the affected area •EIS been in operation since
Q||J 2 involved the consolidation of contaminated soils to t h e cap area and construction of animpermeable barrier oveir the consolidated containinated soils The OU 2 remedy continues t om i n i m i z e the continued release of contaminant!) to Ilie ground w Eil eir Eind prevents public exposure tothe contaminated soils. The remedy at OU 2 i s prof eel ive of human heEi l lh and the e n v i r o n m e n t
OU 3 relies on monitored na tura l attenuation of eon tarn i n at eel groiindwater with a contingency forEIC t ive pu trip a rid tre EH., and ins t i i lu t io rial controls, to prevent the u se o f giroundwater i n the a ffecte d Eire EIIt was originally projected that natural attenuation would ret] LI in: 24 to 28 years, to achieve the target,cleanup concentrat ions . During, the most recent swunpl ing event in September 2002, three of the fourindicator compounds were at or bellow the target: concentrat ions, a n d t h e e x t e n t of the con taminan t
V I
F iv e-Yea r Review S ui inn mary Form , c ont'd .
as !•> tal:eiTient(s), c oin l:'d :
p l u r n e cont inues to decrease The retried)' EI! Oil 3 is e x p e c t e d t o bs protective upon compile! ion, andin I he inleriinn. e x p o s u r e pal hways lhal am Id result in unacceptable inisks are beingcomlirolled.
Eiec anise the remedial ad ions a t all Oils ;it the Westeinri Sand ar id Gravel Sule are protective., the Suleis protect iv s: of human he all h and the env ironmeiiit
Oitltneir Cornnrieiriits:
The ire are no additional cornnienlsa l t h i s lime.
VI I
The purpose of Lhs: f ive-year review is. lo dieteinrniirie whet her the remedies silt a s i te are pro tec t ive ofhunnaiii heal th and I h e enviironrn enl. The rnel hods, find ings, a rid com: lusiion s; of reviews jure doc u me rite d i nF ive-Yea r Review report si. ] n acldit ion, Fi ve-Y ear Re v iew repo nts ident ify issues found duri n & the rev iew,if any, and ident i fy recommendations; to address, (.hern.
Th E; Agency is prepiainmg this F ive -Year Review report purs nan I to CE RCLA § 1 2 1 and the N ationalConitingeiricy P l a n (NCR). CERCLA §] 21 =ital.es:
If the President selects a remedial action that results in any hazardous substances, pollutants, orcontaminants remaining at the site, the President shall review such remedial action no less often
an each five years after the initiation of such remedial action to ass itre. that hitman health ande environment are being protected by the remedial action being implemented In addition if
upon such review it is the judgement of the President that action is appropriate at such site inaccordance, with section [104] or (106], the President s hah' take or req itire s itch act ion. ThePresident shall report to the Congress a list of facilities'for which such review ts required, theresults of all such reviews, and any actions taken as a result of such reviews.
If a remedial action is se/ected that results in hazardous substances pollutants or contaminantsremaining at the site above levels thai allow for unlimited use and unrestricted exposure, thelead agency shall review such action no less often than every five years after the initiation of theselected remedial action.
The United Stales Environmental Protection Agency, Region I (EPA), conducted t h i s five-yearreview of the remedial actions! i m p l e m e n t e d at the Western Sand and Gravel (WS&G) Site (heiremafteirreferred to as I he Site), located on Douglas Pike (also km own as; Route '?), on the boundary o f'13 u i n r i l l v i i l l eairid North Smith fie Id. i n Providence Count';/, Rhode Island. This review was conducted iiri accordancewi th OSWER Directive 9355.7--03B-P, •'Connprehensive Five-Year Review Guidance" (June 2 0 0 1 )
Thus is I he th i rd fi ve-year rev iew For the Site. The 1 r igge r ing acti a ri for 1 his statutory review wasI he submis s ion of the I9"9ii Five--Year Review Report. The five-year review is required due to the fad:t h a t hazardous , substances, pol lutants , or contaminants remain at the Site above levels tha t a l l ow forunl irn ited u se and u rnestricl eel exposure.
2.0 SITE CHRONOLOGY
able 1 •• C]li[iroiM)ki'[|;y ol 'Si l i : Evenlsi
lE'repUt JlilL ,Site operated EIS ii sand aind gravel (HiEirry.ArjpKKiiiTiatelv 12 acres of i h e Site used for disposal of l i q u i d waste-,.Joint irneel ing of l i i u r r i l l v i i l l e and Norlb Srni lh field Town C o u n c i l s lo discussconcerns about Western Sand and Gravel Site.RI Department, of Heal thRIDEM sends V/esteirn Sand and Gnivel Ein 'Notice of Viola t ion for violation ofk V E i t e i r and a i rpo l lu i - ion regulEi i t io i r is , odors and loir fa i l ing to pa-pan: completeand accurate i n d u s t r i a l waste nuani fes tsRIDEM issues. Cease and Desist OrderUnder Consent Agreement wi th RIDBM six p'ouridwat er monitoring wellsii iii st EI lied and sampled and tested pos i t ive for toluene, xylene, chloroform. 1 , 1 . 1 -1 richloroethane , tn chloroetJiene, telirac h loroethene, a rid dlichlorornet baneIR1PEM issues a Consent Decree, a Show Cause Order o n Closure, Eind a FinalI l o M j r e Order l o r pumping cherrncEil wastes from the lagoonsI 1 'A jpurn p » out lagoons1R1DF.VI i n s t a l l s ground water re -circulation system.} i inal Listing on the N PL( H I 1 R l ' FS Complete
' n i i i F i n a J R O D Date.OH 11 RI/FS Complete.OU I I Final ROD Date.Approximate . 1 / 4 5 PRPs entered in to EI Consent Decree t o pay IT A for Iheestimated cost, of the wate r l ine construction and perform all the oilier EIC t iviti esrequired in the Oil 1 a n d O L ) I I RODsOU I I Remedial Desigm CompleteOU II Remedial Action!) Complete
OU I RernediEil Design CompleteOU 111 RI/FS CompleteOU III -- Final ROE) d Elite "Nat in EL! at tenuation W eon1.ing<: ru;y for p u r a p & t r e a tFive PRJP-. enter into a Con sent DecreeLoperlbinrniOU III remedyA d m i n i s t r a t i v e Settlement w i t b one PRPt l i iE i i t failed to jo in Ibc 1992 CDPre l imina ry Close - O u t ReportFirs t Fi ve Yea r R e v le w
OU I I I Natural Attenuation Design Complete
OU I Remed ia l Action Complete
Second Five Year Review
P r o s p e c t i v e Purchaser A airceirmenl w i t h Supreme Mud- A t Ian t i c Corpora t ion
IliEiile1953 lo [9791 9 7 5 to 1979
J anuary 1 91 9
FebruEiry 1979February 1979
April 24, 1979November l (3' '/9
November l c)79
1980November 1982
September 8, 19,83September 2,8. 1984September .28. 1984September 30. 1985September 30, 1985
f u m e 5, 19,87
June 12, [ < ) 8 7March 29. 1989
March 29, 1989April 1 Hi, 1991April 1 6 , 1991
February 21 ,1992Auij!,u :,t 1 1 , 1 9 9 2
De cember 22 , 1 992December 23, 19 9 2
February 1. 1993
September 26, 1994
J u l y 9. 1998
October 2001
The Site, is located on the boundairy of Bur r i l l v i l l e and North Sirni thfield, in Providence Couir i ty ,Rhode [ i s l a n d . A. nuip depicting the general1 location of the Site is provided1 as Figure 1 (Appendix A'|. TheSite consisls of,approxiniEil.ely 25 acires o f l a n d a.nd is located i n a in aresi gem eir ally described as; being semi-rura l . The general layout of the S i t e is shown oin Figure 2 ( A p p e n d i x A).
Rliode I s l and Waler Q u E i i l i t y StaiiidEirds., Class Bwaler bodies a r e su i tE ibh : loir f i shing, swimming, Eindolhs : rrecreational purposes. There is also a we t l and area near the Site t l i E i l border,-, Tar k i l n Brook. Res iden t i a larea s are I ocated 1 o the wesl a rid norl h of the Site, with I he nearest res id<: nee. being approxi ma tely 1 .,000 fee tnorth\ves1 of Ihe Site. Groundwaler has also beem confirmed to duscharge inl.o Tarkiln Brook Eind t h eShi le i r sv i l le Reservoir.
The Site * V E I S operated as a sand Eind gravel quarry from 1953 u n t i l I97 '9 . From 1975 t o Apri l 1979,a port ion of the s i t e was used for Ihe disposal of l i q u i d wasles inc lud ing chemicals and septic WEiste.Contents of lank t rucks were empt ied directly into open lagoon•> and p i t s , none of which was limed wi thprotective maleriEils. Over l ime, some of the wastes penetrated Ihe porous soil and conlEirninated IhegroLindwater.
In October 2001. a Prospect ive Purchaser Agreement between EPA-Region 1 ("New England) andSupreme Mid-Atlant ic Corporation (Supreme) WEIS signed. Supreme purchased the 25-acre She Theprojecte ci land use of the c Eipped portion of the S iite '(Eipproximate ly 6 a cres) will I be 1 irn ited by the u t r l izat ionof ins t i tu t ional controls. Tins: l and south of (tie capped port ion of the Site (approximate ly 19 acires) uscurre n t l ly be ing developed by Supreme as a track body assern h ly plant . Th t: 19 aae area under dev eloprne titis generally upgradient of Ihe impacted groundwal.er,
that eventual ly penetrated under ly ing porous soils; Eind contaminated t h e ground water. The total volume ofmater ia ls disposed of at llu: Site i s unknown. RJD'EIVI records indicate I t i E i l approximate y 470,000 gal onsof waste were deposited at the Site during its hist year of operat ion.
suppl ies. ne Eirby wslh were sa tripled by the Rhode I sland De-pain nnemt of Hea Ith (RIDOI-1) In A pri I 19 79,R I D H VI issued a Cease and IDesisI Order for wolalions of watt r and a i r p o l l u t i o n i r egu la t ions , .
:M Initial Response
1 ii I cr '9 ,I he Rhode Island Depa rtrnenl of Envi ronm ei il EI! Mia n Eige men t (RIDE M) issued a C ease andDe si s.l Orcle r for vnolal ions o f wa ter an d a ir po II u tnon re gul la t i o ris a t the 8 ilk:.
I n I (J80, IB PA pe r formed a reirmov EI! a t the Site duiririj.; wl n ch appro?! innate ly 60,000 ga lion s of VOC-conl a mi i,rial ed liquids we re punripe d and removed from 1 he I Eigoon=,. Th is ac t ion wa»tal< en under th e au thori tyofSectuHi 31 I of the Clean Waler Act, prior to the passage of CI1RCL A.
In 1982, R] DE M as the lead Agenc v , be.[>am EI groin n d \\ EH er ret: ire u \a t ion system in a n effort I o conliro Ithe spread of gnnnridwal er c o nta rni n EI! ion R I DEM and EPA c endue ted Rl/F S si ud ies a t the 8 il e dun n E: 1982to 1985 lor OU's oine and two.
3.5 Baisii! for Tiikiiiijj; Action
Contamination had mi g r cited to and had affcclecl i h e qua lily of dr inking water in nearbyr e s i d e n t i a l wel ls .
CoiiitanriiiiEitecl groundwaler liad discharged in lo nearby Tai rk i l r i I!! took and Sla tersv i l leRe -.
ContaininEitecl soil Eind sludge existed i n v E i n o u - , local ions on i h e Site.
Hazardous a i r emissions went not delected at the S h e .
Action was taken EH: the Site since bolh human and env i ronmenta l receptors enisi : and cou ldpotent ia 1 ly be exposed to con laiirniinants oc coming, at coirice ritra t i O'f i -. i n exc es s of sta te and Fede ral si Einda rds.The primary exposure to Sile co 'n ta in inat io 'n would be throijf!,h direct contacl. and/or ingest ion of soils,si u d ties, and sedi me n ts in wasle ba si n =,/ la g,oons and sueas i rnnriedialely adjaceiiit to 1 he wasl e basi n =./ la goons ,direct contact and/oir inges t ion of surface waler: and inge '- tuon of co ' r i ta rn inEi ted g.roundwalc'r. The ROD forOU III I n sled the fol lowing, primary conlamiirianls of concern:
be n ;:e ne, c h lorobenzcne , tol uene , xyleities. 1 , 1 . 1 -tricl i l oroel h Eine, Ir ic h loroethene,1 etrachl o roel hene. 1 , 2 -di ch loroethane, 1 , 1 • d ic hlon »e t l lan e., and di chloro trie tha nc.
Page 4
4.0 REMEDIAL ACTIONS
4.1 Operable IJiniil I Remedy S'
In September I ()!M, EPA issued the first. ROD f o r I h e ' S h e with the fbl lowiing, re rued la I objectivesI To provide residents in the affected area w i t h a permanent supply of safe dr ink ing water." A bal E: loc EI I sou rce s o f conl airmiirial ioni at the S il s:II VI ini tni z<: fill u re p u b l i c health rusks by res tn cti n g si tc acce ss
To achieve these objectives t h e ROD specified:•• Th E: insl a I I ation o f w ale r fillers as an lin il ial Remedial M easure ( 1 R M) to provide prolec tion
for homes where c on taiiriiiiiants 'were ident i f i t:d in the ir we! I s , unti I the peimi Eine n t al termitewater s u p p l y became fundiomaI.
° The insta Ihiti o n of a peirniiEineiiit allerniiite wa ter suppl y to se rv ice appro x irnalely 5 6 pa rce Isof l a n d
Starting in August I(3'!M, Olim Hunt Specialty Products. Inc (O l in ) , apol.eiriitiEilly responsible paity( P f i J P ) EH: the Site, i n s t a l l ed water f i l t e r s in private homes wiIh conlEirninaled wells airid in homes that n n i g h tbecome conlanninated. EP/-\ began coii islruclion of the perrr i i i inent water supply system in April 1990. Thewater s u p p l y system became operat ional Eind [linetionEI! m September 199'1.
I n September 1983, £FA issued a secoind ROD for the si te v / h h 1 he fo l lowing E i d c l i t i o n E I ! remedialobjectives:
• Contain or remove sources of 'conlarninat i ion at the She to nr i i i in i i rn ige t h e continued releaseof conUirni r iant - , 1.0 the groundwalerand f u t u r e public exposure and health impacts
1 M iti gat E: the eiiiv ironnienla! iimpact of conlarn ina ted ground w EII BT
To achieve these object i ives , I h t : ROD specifiedThe grading of c o n t a m i n a t e d soul la the cap areaThe i ri 'stal lat ion of an ini pernrieab le CEip consist ei it w it h RC R A prov is ions
1 The phEisingoi . i l of the groundwateir reciirculation system, and the removal and disposedof the associated equipmeirit .
» The final g r E i d i n g of the Site with loEirn and I he Deeding of the cap airid surroundni igsuirface.
" The securing of the Site w i t h a fence and pos t ing , of the Site.
This ROD Eilso required tine fo l lowing , opeiral ion and n r i a in t en since a c t i v i t i e s :° The inspect ion ar id maintenance of the cap. f ence , Eind pos t i l ings consis tent wi th RCRA
prov is ions.° Con t i i n u E:C| Biroundwa ter mon itorhng consi stenl wi t h K C R A post -closure pro visi o n s.
P'Eige::
Construct ion ac t iv i t i es for Oil I I were complete b> IVI . i rch IW) A l l contaminated soils wereexcavated and conso l ida ted under approximately 2-acires of impermeable ca|) ( R C R A C). The Site wasgraded a n d The cap and graded area are fenced and posted w i t h wairni ing signs.. The fenced areacomprises approximately 6-acres of the 25 acre Siile. Post-closure monitoring and inspections of the capand graded aireas. are ongoing.
In April 11991. EPA issued the ih i i rd and f inal ROD for the Site w i t h the f o l l o w i n g irernediallobject ives :
11 Restore contaminated gjroundwa ter in the overburden aquifer, from the boundary of theexi sit ing ca p t o 1 h e o u te r boundary of the contta mi nanl pi u me, to s tate andl federalA R.A R s, incl ud ing d runk ing water stand ards, and l o a level that i s, prot ec t ive of hum anh e a l t h and t h e env i ronmen t as; sioon a.s practicable.
I Restore cont ami rial eel water i n the bedrock s y s t e m , to state and f ede ra l ARARs.i n c l u d i n g drinking water standEirds., and to a level thai is, p ro tec t ive of human h e a l t h andthe env i ronment as; soon as practicable unless E P A d e t e r m i n e s , based on adldit ioinalinformation, t h a t contaminat ion in the be d rock doe s; not exceed protec t ive leve l s .
Protect imcontani ina ted! grou ndwatjer and su rfac e wa te r for current a n d fulmire useII Preve n t h u ma n a nd airi innal e xpostire to c on tain in ated gro nodwater.11 Protect env i ro i r i i rne in ta l receptors ; .
To achieve these objectives the ROD speciliied
« Reliance on na tu r a l alienusition of contairninated giroundwater with a contingency toperform active res tora t ion . According to the hydrogeologic models, gro uindwat er isexpected to be restored to t h e interim c l eanup levels in approximate ly 2-\ to 2,8 yearsA c t i v e restoration, (bir which a work plain has been developed, wi l l be i m p l e m e n t e d ,accord ing to the ROD, i [' n at u raf atteirmal ion is not restoring the grounds ate r at a ralepircdicled by modeling or faster
" U t i l i s a t i o n of msl i tul ional controls to reduce the risk to public h e a l t h f rom consumptiono f gro uindwat er
11 Imiplementalion of a Site monitoring program to include l o n g term monitoring of t h egiroundwater.
The interim c l eanup levels for four indicator compounds have been establ ished for the s i t e todieter m ine if na tu ra l a t t enua t ion is working as predicted by t h e model or fas te r . These compounds andcleanup levels are presented below:
in Section 4.2 of the S i t e Moni tor ing Plan. The f i r s t evalual ion was comple ted t h r e e years from t h e date oflodging of t h e Consent Decree The Consent Decree was lodged February 26. 1992. T h i s Hirs t evaluationw EIS cornp le ted in accord am: e w il h the Si te Monitoring P la n Eind ( 'on sent De cree 8 tatemenl o f Work and wa spresented in Appendix E, to the 1994 DEI!a Report, dEil.ec! February 1995. The evaluation showed t h a t thestatist ical lest passed w i t h o u t considering oullieis for the i n d i c E i l o r compounds letrachloiroelhene,t r ichloroelhene, and v i n y l chloride. The report made recommendat ions regarding treatment of out l iers forthe indicator compound benzene and EI fur ther recommendation regarding modif icat ion of t h e benzenetheoret ical curve based on new i n f o r m a t i o n derived f rom a irecenl r e v i e w of the groundwaler modelingassumpt ions and modeling parameters reported i n t h e l i t e ra tu re .
Subsequenl 10 that eva lua t ion , (bur consecutive quarters of ben/ene rnaximurns a t or below thetheore t i ca l c u r v e had been achieved However, loir (lie period December l (3'9!> through December 1 996,t h r e e of the f ive quarters were above the theoretical curve for benzene As a r e s u l t , and consistent w i t hSection 1II (< ! 0(1 ) (a) (3) , page '/ of the Consent Decree Statement of W o r k , ano the r Periodic Evaluation ofI he data was cornpleled and submit ted to the agency i n April I c) '97 That evalualion identified proposedchanges to I he s ta t is t ical t e s t s , w h i c h a r e consist ent w i l h t h e language and inl ent of the RODAdditionally, olher trend ana lyses of the data indica te thai na tu ra l E i t l enua t ion is occur r ing at the s i t econsistent with the overall compliance schedule in the ROD.
The proposal for modification of the s t a t i s t i c all test c o n s i s t e n t wi th the intent of the RODreceived agency concurirence i n the course of the development of t h e F ive-Year Review, Type I A, forOperable U n i t No. 3 (April 1998). Wi lh this; modif icat ion, the need loir ac t ive remedial ion w i l l be evaluatedon ly if both of the following, conditions are met:
In apply ing t h e Wilcoxon Rank Sum Test, the n u l l hypo thes i s is rejected i n favor of t h ea l te rna t ive hypothesis tha t Eittenuiation is occurring, at a rEite slower than predictec by thetheoretic Eill curve This will occur if T" > t( a , n )
» Least squares regression fails to ident i fy a s t a t i s t i c a l l y s ignif icant negative slope a t the95 percent conf idence level.
The implementation of the remedy under O!) I l l- n a t u r a l a t t enua t ion-con t inues to be monitored asr e q u i r e d i n t h e ROD. To date, groundwater-monitoring events have demonstrated tha t na tu ra l attenuationis occurring at the Site and there is no need loir any add i t i ona I remedy implementation. During the five-yearreview period concentrations of the indicator compounds cont inue to decrease and all four indicatorc o m p o u n d s , passed I he W i l c o x o n Rank Sum Test d u r i n g this f i ive-yeEir r e v i e w period. There is also asign i flicant negati ve slope for the lea ;,t squares regression 1 hat inch cales 1 h at benzene is c on t i nu ing to decrea seo\ er 1 irne Ta h le s and fi gures present ing t he si ati si ic all eva lua t ion from ini t ia t ion throug h 1 h e Septern tier 200 2
he four indicator compounds are presented in Appendices 13 and C, respect ively
IsoconcentrEi l ion maps for the years 199!! through 2002 (as presented in the a n n u E i l reports duringthis fi\ e-ye Eir rev iew pe riod) are provided in Appe nd ix D Th esc rn aps show 1 he con cen tral ion c o n tours fortola I vol ati le organic s based on the single h ighes t total volat i le organic cone ent fEition delected in e a c h welllor a l l s a m p l i n g events during the respective year.
1.4 iSys 11!m Op (!ratioin s/Operattiioiti wnd 1VI aiiimtan a rice (U & Ml)
"he water s u p p l l v sys tem is operated and mainta ined by EL p r i v a t e l y o w n e d w E i t e i r d i s t r i c t (Nasonvi
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'Flu: PRPs have con t inued to condlucl.roulline system opera t i ions/O&MI t h a t I I E I S consis ted of theS il e inspec t loins and .general nriai n te nance o f the grounds. In addi t i o n , the PRPs conti mue to mion ii.or I heperfor ma rice of the re me dy based on Biroundwa ter sarn p l i n [\ e vents . Qua rte r ly progre ss reporl s, andanniuEi l data reports have been submitted lo ihe EPA for the years, ci ted below All O&IVI act ivi t ies duringthe f i v e - y e a r review period was conducted during the regular s ampl ing events , as noted below
September 1998" September September 2000* September 2001** Sepl ember 2002"December 199 f! Decembe r 1999 December 2000 (: (: |:
* Annua l IBverM** Eli annual [• \ ?n\ * M: S irnplin g eve rit e Innmauid from ove ra l l s\slem inon i lo i r inp program
Si n ce I be remedy relies on natural al'tenuiatk) n o I'conl arn ina te d groundwaler 1 o achieve the goal s; setforth in I h t : ROD, an annual dala review us; also conducted1 lo assess whEither the remedy p e r f o r m a n c estandards; are being satisfied.
5,0 P R OCR! ES S SIN CE TH IE LAST R E VIE W
In Ihe second F ive- Year Review, daled July 1998, EPA certified that the remedy selected for I hisSiilc ircnnai n s prol E:C I ive of hum an hea II h a ncl Ihe enviironniei i l . Sin ce 1 he cone enl rati o n s of the i nd ic Eil orcompounds decreased al the rate predicted by I h e theoretical curve, or fas te r , il was recommended thaiI be na tura l a tLer i iua l io r i remedy be a l lowed lo continue. The p r e v i o u s f ive-year review did nol target anyspecific issues or addi t iona l recommendations;.
During the course of I his five-year re view period, tPA and R1DEM were petitioned by the P R P slo decrease the number of wel ls sampled and the frequency that Ihe 'wells were sampled. This, requestwas, made since the indicator compounds; continued lo decrease at the irate predicted b y I be theoret icalcurve. The proposed modifications weire considered in no way to inripacl the ongoing , rouline moni tor ingprogram and the e v a l u a t i o n of Ihe effectiveness of'llie remedial action The proposed changes lo theremedia l program included I be f o l l o w i n g :
• Te mpora ry s;e ailing and/or permanent aband on rneini: of s,e led ed on si te wel Is ,Reduction i n I be (ireq|UE:ncy of the grou ndw al er sampling schedule, and
• Reduct ion in (be f requency of the collection of bydrogeologic r n o n i l o r i n g d a l a .
Tenn |"Ki ra ry Sealed Wdllsi
Te mporair il y seal ing of se lecte d rnon itorimig wel Is v* rci '= p roposcd to en sure ? ec u rity to the aqui fcr. Byd o ing I b is. it was proposed I o rerno ve I bese we Ills firoirn I be hi ei n n all sarnpl ing e vcnl, bul kee [> the v^e I I s i nta cifor the f i n a l a n:a inrn enl sampling. The wel Is would be sealed at the surface w i t h metal plates thai would be
Page ii
removed for the f inal sampling event at the coiTipl(:ltH>n ofllu: muni ton n a program
The iralionale for the se lect ion! of wel l ; , for temporary sealing was a? follows:
11 The proposed wells lacked contamination, as evidenced by results. obtained froirni theprevious b iennia l S E m i p h n g events. •• Seplenibcr 1997 and September 1999.The effectiveness of the cap us monitored by other wells located between I In: cap and (hewel l s ; proposed for sea ling,.
The f o i l owing is a l ist ing of line wells litial were reques ted to be temporari ly sealed and thereforererno vedl from t he b ien n ia 1 s;a rnpl ing ev enl. All hough wells 11 I S> a rul 1 1 1 D we re not a part of an y samp] ingprogram at i h e t ime, it was requested tha t they also be temporar i ly sealed so that they may be available forthe a t ta inment sampl ing event at the connplet ion of the routine m o n i t o r i n g program.
PZ-9sMDc
' L . >
•MI
15UI 8 SI S MI S DI M S
II 1 D11 2 SM 2 M1 I 2 D1 I 4 S
II4MII4DII5SIBM11 5 D
H6SII61VII16DI I 7 SPZ- 1
PZ-4PZ-5PZ-6PZ-7PZ-S
Other we I I si which w Eire on ly sarn p le d on a b ie run la I basi s (we I c luste rs; 12 , B, I 4,16, 17. C1, C 2, an dC3)were not requested to be re moved firorn I he routine m o n i t o r i n g prog,rEirn due to their s l ra legic loc Eilionsfor i d e n t i f y i n g c o n t a m i n a t i o n ouls.ide of the currenlly k n o w n p lume (ac t ing , as sent inel w e l l s ) and/or thec u r r e n t presence of low leve l s ; of v o l a t i l e organic contanr i imat io i r i in the wel ls .
Pi: r tin !i nim I ly A Imnido ined Well;?;
Addit ion ally, it was; proposed by t h e PRPs to permanent ly a b a n d o n several of ihe on site wellsbecause they are no l o n g e r or never have been part of the sampl ing program, and they present a potentialfor c o n tarninate s to enter the aquifer I ri Ihe case of some of I he ca rl ier ins tail le d bedrock we! Is t hat maynot liEive an adequate seal ( I I 3 I B and C4B), the potential for in t roduc t ion of overburden contaminants in lothe l i m i t e d bedrock ground'A'ater system is a concern.
Presented be low are the v/ellsfbr wlhich pieinrnanen t closure was requested and Ihe Eisso-ciiatedrationale
I l l El "Mot a product ive w e I I / n o t being used for sampling19 El Not a produc t iv e we I I 'not be ing us ed lor sarnpl ing1131B Mot Ihei ng s;a rnpled/pote nt i all cross contaminat ion
between overburden and bedrockC4B Mot: being s;arnpled 'poteir i t iEI! cros;:s conlarnination
between overburden and bedrockA-3 Oil-2 Well l /Not a pEirl of the c u r r e n t sampling programC Oil-2 Wel l l /No t EI pEir t of the cu r ren t sampling programB OII--2 We II I ' "Mot EI parl uf the cu i r i r cn l sampling programE,-3 OII-2 WeII'"Mot a part of the current sampling program
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I ) W--5 OU • 2 Wei I/Not a part, of the <: uirrent sarn p li n g pro giranriGZ--I O U - 2 Well /Not a pan. of the c u r r E i n l s ampl ing programGZ-4 OU-2 Well /Not a pan of the current sampl ing programGZ-5 OU-2 Wel l /Not a part of the c u r r e n t sampling program
'GiroHI nid wa 11: r Sam plli nig IE'
Based om the result, of collected data to date and t h e ove ra l l success of the ongoing remedia lprogram, the P R P ' s proposed I he reduction of i t lne groundwalcr s E i r n p i l i n g schedule lo biaii inual ve r sus thequarterly schedule Eil t he time. A proposal was nnads: lo keep t h e current sampling schedule for t h emonths of March and September, and dele te the June and December sampling events since they representcollect ion of only l i n r i i l e c l seasonal da ta that has been suf f i c i en t ly chairacter ized/evahiEited This; reductionwould only eh mini ate t h e col lection of data from well c lus te r s C-4, C-S.C-6, and II-.3 loir hvo quar ter 1 ! .IDue to the demon slraled s tab i l i ty of the p lurne anid the abundant data tirom t h e s e f o u r well clusters, thePRFs. fe l t that the proposed reduction to the sampling program was justified.
Based om the previous 9 years of quarterly groundwaler piezoiriietru: data, groundwaler has beenflowing in t h e same direct ion cons is tent ly in I tie shal low, medium, and deep interval-; of t h e overburdenaquifer A d d i t i o n a l l y , measurements have also shown cons is tency in the recharge and discharge areas asev idenced in t h e groundwaler f l ow net evaluations for each quarter . Based on I his in fo rmat ion , it waspropo sed by t he P RPs to limit 1 he s it e vv ide groundwaler leve I rnea -,u rernent s to once a year for the remainingwells w h i c h a t e not sealed or abandoned The annual rneEisurements would be conducted d u r i n g theSe ptember groun d v» ateir sarnpl ing ev ent.
SUMMARY
E1PA and FSIDE1VI approval lor the irequiested program mod i f i ca t i ons was granted (correspondencedated August 7, 2001 ) with the fbllowing ejsceptiion:
• The wells thai were i n i t i a l l y proposed lo be pm-nanent ly abandoned w i l l mis lead betemporary sealed as approved, using the same spec i f ica t ions for temporary m o d i f i c a t i o nas detailed in previous correspondence
Well s a m p l i n g beginning iin September 2001 was conducted in accordance w i t h the EPA EipprovEilin 1 h e redlu ctioiri o f's Eini p h n g (requeue v and local ions Spec! fie a l ly , sa rnples w ere not c oiled ed from twe n ty-two ( 2 2 ) of the previously required loca t ions during I he b i enn ia l sampling event The s amp l ing l oca t i onsapproved lor e l i r n i n a t i o n from t h e groundwaler monitoring program included t h e fol lowing '
Red evdopnuenut
In October 2 0 0 1 , a P r o s p e c t i v e Pun:baser Agreement between LiPA - Region 1 ( N e w E n g l a n d )and Supreme Micl-Ati lEint ic Corporation (Supreme) was s igned Supreme, purchased the 2 5 - E i c r e Site. Theprojected hind use of I he capped port ion of I he Site (approximately 6 acres) wi l l ! be l i m i t e d by theu t i l i/ati o n of i n s;l ii ml iona I conliro Is The land sou th o f the c appc d port ion o f the S it e (Eipprox inn site ly 19acre:;) 11 si current ly be ing developed by Supreme as a (melt body assembly plant. The 19 acre Eirea underdevelopment is . generally upgrad ien t of ( h e impacted groundwaler.
<()„II Ad uriiiniisltira liivc Coiriiiponenitii
The Wc'steirm Sand & Giravel s h e ' s five-yeair r ev iew learn was; led by Mr. James Ml. Brown, E!PARegion 1 R e r n e d i i a l Project MEinager loir the Site The r e v i e w components included:
" si te inspection," dEita r e v i e w ;° revi ew of ann ual da la ireporls;° revi ew of s h e ins pec 110111 reports,° interviie vt s, w it h 1 ocal offici E i f s and resident s; and° development and review of the Five-Year Report
Soon after 1 he review and a pp roval o f thus five-year re v ie w re port, EI inotice wil I be placed iin a loca 1paper anitiounc ing that the five-yeair review report is complete a n d t h a t i i l is ava i l ab le to the p u b l i e at I h e S i l erepositories EIS l i s t ed below
E i u r r i l l v i i l l e Town Hall1 0 5 Har r i sv i i l l e Main Si reel
Ha i r i n sv i l l e , Rhode Island 02,830'
LIRA -- Region 1 ( N e w E n g l a n d ) Records; Center-One Congress StreetBos ton, Ma ssa chuselts 021 hi - 2 0 2 3
Dui ing t h u s jfi ve-y ear revi ew peri ad, I here were n o public hear! n as or pub I ic meeti n as. Howe ver, U SSenator L i n c o l n Chafeeand other state and loc all off iciEils v i s i t ed I he S h e in 2001. Communi ty i nvo lvemen tac t iv iti es d u r ing 1 he five yea r re viie v» per iod were liinniiled I o the subrn is sion o ['the annua I dat EL reports to thelocEi l l and Feeler EI! ireposi tones l isted Eibove (i.e., tine B u r r i l l v i i l l e Town H a l l a n d i h e H P A - Region 1 N e wEngland Records; Center).
In October 2001. EI P r o s p e c t i v e Purchaser Agreement belween EPA and Supreme IVI i d - A l l a n t i cCorporation was signed S u p r e m e M id-Atl antic Corporation subsequen t ly purchased the 2 5-acre Site a n d
Page 1 1
In. JamuEiry, 2003. hi PA perfbirrned exploratory t rench ing and soil sampling al the V/est era S find andGrav el site. T he ex p lora lory treiriche s a rid so ill samp] iing was pcrfo r rned in re spon se to c ornrn u,ri il y cone erasre gardi rig 1 he c u nent dev e lopmemt of I he Siile by Supreme M id -Atl Einl ic C o r poral ion. Spet: ifical ly, dark colo rso i l s eric o uirite red d ui r ing Site g;adi n g ope r EL! ions mare EIS that some re sidenl s be! lev e pi Is and/oir lagoons wereonce locEiled find never reniiediiated as; part of the S u p e r f u n d cleanup p l a n .
Soil samples; were sent t o a hib where they were analyzed fora variety of metal s, serni volati le andv Q'lal il e oirgan ic connpou rids, (VOCs), pe si ic ide s and PC E l ' s . lii as ed on observ Eil ions o f the four 1 es t p u t s, irios i g n i f i c a n t visual evidence of old disposal pits oir lagoons could be found A few isolated area s of da rk soilwe. re obse rved. Che mi cal ana lys is of I h is dark soil i indue at es low le ve\ s of o r,aan ic cont a rni rial ion an d me tal s.The concent ra t ions ; were below a n y levels of concern loir t h e p l a n n e d i n d u s t r i a l use of i h e Site.
Based on v is ual e v ide nee, the res,u II s; of the die mi cal analys is and exist ing i n si i t u t i ion all c on trol si ongiroundwa tcr use EPA. determined that addit ional investigations a r e not warranled at I his i.irne E-PA has;consul tec wi th Rl DE M and they comcur w il h thi s conelus ion. In addit ion, Rl DEiVI tested groun d wate r we II s;in t wo nea rby resi dences and dete r mi ned t hat they were iriol. be ing impEictecl by contain ina n ts o f'e oncerm fromthe Site. One of the res ident ia l wells w i l l be toledl again i n t h e near f u t u r e .
63 DIKunrnoiI Review
This f i v e - y e a r review consisted of a review of re lev aril documen t s i n c l u d i n g line RODs. the 1992and r[)9,B F ive -Year Review Reports, a n n u a l gjroundlwater moni to r ing reports, i n s p e c t i o n reports. Eind arev lew of current regu la lory guide l i nes (stal e and federa I ) to confirm tJnat s tan dards ha\ e n of cha n gecl w it hrespecl lo i h e remedy.
6.<-l IDaltai Review
Ongoing la sks associated w i t h O L II include reguhir inspection and monitor ing of l i n e l andf i l l capdu r ing rout me S ite monitor! n,E! eve nts Duri rig this five -year review period, the int egri ty oft h e ca p rernai n eelintact . VI inor wood y vegeta lion obse r vcd on the cap and along 1 h e ca p fence I ine wa s removed as; necessary.
Tas,l<s; for Ob I I I include ongoing, ground'WEiteir r n o n i l o r i n g for select v^el l l s a t Ihe Site, Si teins pec t i ion s, and annual report ing of res;ul ts Girountdwater flo w I hiroughout thi s; fi ve-year re v iew pe r iod ha;;been to the nor th , wi th grou in d water u It irn Eil e ly d ii»ch Eirgi n g into local streEirns. All piezoirnietric data Eindgirounclwater f l o w niEips that \vere generated d u r i n g the 5-year period are presented in Append!*; F!
O v e r a l l , the d c i l a indicate t h a t n a t u r a l at tenuation is occu r r ing EI! t h e S i t e EIS evidenced by thedownward trends of select ind ica tor compounds (P'CE, TCI:., vinyl ch lo r ide , and benzene) as indicated on[• igure s 3 tl irough 6 (A ppendi K C) T he i rid ic Eil or compound data h five bee n ELSSCS = ed s nice I Wli b y appl y ingthe f o l l o w i n g analyses lo Ihe giroundMater data:
Page I I 2
If applying the Wilcoxon Sunn Test, the mull hypothesis, is; rejected in favor of I he a I tern ai.i veh ypol lies is. naitura I artenu ation is occ u nr ing at a rate slower tha n predi cl eel by 1.1ns: theoirel ic ;i I c urve (i his, wi 111occur i fV = t(a , n)). Should this occur, an alternative (i e , more proactive) remedy would be required.
The ben/erie concentral ions over lime were also evaluEitecl by plotting the least squares regressiono f the data (Fi gurc 7, A ppendi ?! C). Sli ou Id this plot fa ill I o i dent i Ey a sta tust ica II y si gn ifican t negative slopeat the 95 percent confidence level, an al tern Eiti ve remedy would be required
During ihis five-yeair review period, the SilEitislical analysis confirmed thai iifitural atLeinuation isoccurring Eit the Site.
Laboratory analytical res u ll s; for 1 h is five-year review period Eire sunimairizecl below with res,ped tothe individual indicator compounds of concern, focusing on the two sampling, events for 2002
" liimxene concentrations; exceeded the theoretical concentration five tunes; during this five-yearreview period. During the last two sampling events for th is five year review period (March andSepte rnbeir 2002), the maximum benzeme concent ral ion cle tected w as 4.0 irnicrograrn s; per li ter (//g/'l)and 1 0 /jg/1 respectively Both below the theoirel ic a I and urrget com: enl niti o n =, of 5 0 /.<[!/].
° Te tiracliloroetheirie (f-'CH) c o nee ntra tiions si ight ly e xceede d the theoirel ic all concent rEition once duringthis; five-year rev iew period (June 2001). Dinning the most recent s am pi ing events (March andSepl ern l>er 200?.), PC B was; cle tected at a maximum cone enl ral ion of 5.8 p g/1 during t he March 2002event, belo w the decllin ing theoretical concent ral ion of I 8.7 ,u g,' I, but above the target c once n trail ionof 3.0 g/ll. The rna x irn umi PC'li! concentiral ion during i he S ept ember 2002 even t was 2 5 /vg/l. belowboth the declining theorelical cone enl ration of 17.8 (Jig/I and the target concentration o fS .O /vg / l
• Trichloroelhene (TC E) concentration«. exceeded I he thcoreti cal c once n tra tiion tw ice during th is fi ve-year re view period (June I'JW and March 2002). During 11n: March 2002 sarnp l ine event. TCE was,cle te ctecl at a rnaxi rnum coiiicenlirat ion of 1 !i g/1, above I be dec! iniin g theoirel ic a'l conce ntra tiion o f 8 3/^g/1. Ho\vevcr the irna»;iinriurn TC E concent rat ion dcleolcd during, i he most September 2002 eventwas; 2 8 pg/J, below both the declining theoirel ica I cone enl ration for September (7 'I ^g/ll) and thetarget concentnil-ioiri of 5.0 wg/l
•• Vi n y I c h Ion de con cenitirat ions ex ceecled t he theore t ical cone entrati o n six ti me s, du r ing I h is five -yearreview period (March 199!i, March \W9, September 1999. September 2000. March 2001 andSepte rnbeir 2 0 0 1 ) However, during the 2002 sampling evenls, vinyl chloride was detected atmaximum concentration;; of 2 I ,wg;'l and 1.2 ug/l during the March and Sepl ember event-,,respecti velly. The dieted cd rnaxi mum c oncen trail ions were be low the theoret ical concent ration of 5.0,wg/1 T he rn aximurn M'arch c o nee ntra tiiom was above the target c once n tra tiion of 2.0 ,tvg/1. whi le I hemaximum September conccnl ral ion WEIS below the lair gel concentration
Duir ing 1 his fi ve-year rev iew peri od, al I foul i nd ic al or c on ipoun d s, (be n ze ne. PCE, fCC, and vi nychloride) passed the Wilcoxon Rank Sum Test during each sampling round There i=, also a significantnegEiti ve slope for I he 1 easl squiEircs re giress ion I bat indicates thtit be ri.eenc1 i s conl inui n g to decrease over 1 irneTa b le s; a rid fiig,u res pre s;e n ti n g the slal is tical eva luat ion fro rn i n il iat ioi i of the n icini ton ng program through the
September 2002 sampl ing event, for the f o u r i r id icaltor compounds, Eire presented in Appendices B a n d C ,respectively
6,,5 Siilc Kniipc'dkiiii
The Site was inspected by A'1C during g;rtjund\va(er s a m p l i n g event:,. S i le in spec t ions werec o nduc ted during e Eich of the giroundwa ter sia rnpl ing event«, conducted dun n E; 1998 (March. June, Se pternbe riuid December), I')11)1!) (March, June , September and December). 2000 (March, June, September andDecembe r), 2001 (Marc h , June, and! Septennbe r), anidl 2,002 (M am. h a rid S epl ember |. OverEill , there were noconditions iden t i f i ed that would conripronri ise the remedy. The general main ten Eince ac t iv i t i e s . inc luded:replace me n t o finis ted 1 ocks, rriai n te n Eince o f vegetation a long fe nee I ine«.; ircnioval o f young trees «.p ronti rigiiri southern portion of the Si le . e l i m i n a t i o n of animal b u r r o w * undeir the fence ( w h i c h were f i l l ed i n ) , andrep] EIC ement of posl ed w arm n g signs al o n » the fence. During I he VIarcJi 2002 e venl, ATC not ic ed 1.1] at somesmall t rees had established themse lves a long the edge of the cap These trees were removed before t h e ycould damage the cap. Site i n s p e c t i o n reports are provided in A p p e n d i x F.
The cap was generally observed to be well maintained There were no observed low spots orponded waters, no erosion al damage, and n o observed an ima l burrows i n the cap Appendix G is a
lotogfaphic summary of genera l S i le condit ions as> observed during a irecenl Sile inspect ion .
i .6 ]l mtarviie w&
7.0 TECHNICAL ASSESSMENT
The remedy cont inues lo func t ion as intended by the t h r e e Records of Dec i s ion for t h e S i te . Thewa te r supply system is opeirated and rn EU n (aimed safely The l a n d f i l l cap is in excellent c o n d i t i o n Eind isbein g, we 11 irna int aimed Amu u Eil data repo rts c le Eirly demonsl rate I hal natura I Etrlenuati on of theg,roundwater is progressing al or faster than the predicted rates, for the selected indicator compounds.
Question fit: Are the exposure assumptions,, Koxialfy cilia to, cleanup levels, and remedial actiona&jecfives (RAOs) used ait the. time of remedy selection shill valid?
Ba sed o n EI rev iew oft he most curre n t stale and federa I re eul la t i o n < , 1 he targ,et. c leanup lie vel :> rern aimvalid. There heive been no changes to I he regulations to warrant any f u r t h e r review of t h e existing targetgrouin d wate r concent ra t ions There have also been no changes m the physical cond i t i ons of the S i le tha iwould affecl the pro!eeliveness of the remedy. The rnosl recent state regulation for assessment ofground water q u a l i t y app l i cab l e lo t h e S i l e i s listed below:
" R uh:s and Regulations for Groimdwater Quality, Slat e o f Rhode Island and P'rov ide rice PI Einl al ionsDepart men I of E:,nvironnrieri tal Management, Div i s ion of Ground water and I n d i v i d u a l SewageDisposal Systems, Regu la l i on 1 2-100-OM, promulgated May 1992, las t amended August 1996.
The rnosl recent Federal r egu la t ion for assessment of g ioundwater q u a l i t y a p p l i c a b l e l a t h e S i l e i s l is ted
Paige 14
Code of Fea'eral Regulations, Title. 40 - Protection of Environment Chapter ! - Environmema!Protection Agency Par! 141 - National Primary Drinking Water Regulations.
Condition s ait the Si te reni Eiin relati vel y unchanged s ince the iiriceptio n of I he ROD:;. There ha ve beenno c h ange s l.o Sule usage o r the use of adjacent pirope rties that vvou Id ca III i nto que si ion the protect iveness oft h e remedy. The regu la t ions ; governing grounchvateir qua l i t y at t h e Site remain unchanged.
The land south of the capped portion of the Site is cu r ren t ly being developed as a truck bodyassembly plant. The area under development is general ly upgradient of the impacted groundwaler andmeasure:; approximately 19-acres. Since this, work is upgradienl of t h e imp acted groundwa ter, and aslong as. these development a c t i v i t i e s ; do not encroach upon the capped portion of the Site., and publicwater is u t i l i zed . , the remedy remains, protective of boll) h u m a n heal th and the environment ,
According to the data reviewed lor this five-year period and I he site inspections conducted duringgirouridwaler sampling events;, the remedy is funclioning EIS intended by the three ROlDs, for the Site Therehave been no changes in regulatory statutes EIS they would per la in to the target level 's, and no new pathwaysloir exposure identified, that , would call into question the goals of the remedy as set forth in the RODs.Overall, groundwateir concentrations continue to decline at rates taster or equal to predicted rales In fact,three of the fou r target compound,-; were at or below t h e target concent rat ions d Hiring the most recent(September 2002) ground wEiter s ami pi imp, event, The overall trends of the indicator compounds whichdemonstra te that rial u raf attenuati on is occurring,, are shown on t he fi eures pre -.ented in Appe ncl ix C (F igures,3 through 6). Figures 3 through 6 are plots; of the "Theoretical Attenuation versus, t h e Actua lConcent rations," for the indicator compounds (P'CE, TCE, viiriyll chloride, and benzene). 'Natural attenuationat t h e Site i s also confirmed on the ''Least Squares Regression Analysis for Benzene,'1 Figure 1 (Appendi?!C).
The extent of I he con tarnin ant. pi uirne is also decreasing i n si ze over the five-yeair period Th is trendis ex.li ibiled on I he a n riual isoconcentral ion maps depicl-ing maximum total vo lat i le orga n ics detected duri rigthe five-year period (A ppendix D). As, i llu slrated by the maps, the plume has decreased i n size/aeria I ex ten ta rid concent ration over the co uirse of the five .year period, most iriol ab ly by the reducl ion and dec rease in s izeof the n u m b e r of wells e x h i b i t i n g total VOC conicenilrations greater than 100 paints per b i l l ion .
'] here were no iissucs ident i f ied in the previous Five-Year Keporl. Table 2 s i inninai i /es l h o ' « eissues; iden t i f ied dur ing ( h i s f ive-year re v i e w period based n n i h e Site inspections.
Observed Itre© i;|rovirl!ri Hryirug lo eslakilisih a round iiirn:! oin the C Etaff gauges! could ini't be read in recem! iiiE
Issues idenl i f ied al. the Site dur ing , Site inspections \vere MJirnrnanyed in Fable 2 (Sectnon 8.0)Table 3 addlresses, those issue s a n d i n c l u d e s recommendations for f o l l o w - u p ad ions
(telloinsl:'n;i|i:!<: live rKKi si (Y/M]i
CiiiiTiiinlt l: iiili.irii
andlaroundcap
nolreadable.
accordingly toirinininiiizeairiiydn!iturt]<Eiric E! to capby vEsgelal.uve irn.Eitler(nriosl notably trceis.)Prnor lo theSeptember ii'DO:!sairniplirig evenl:,rn,Eik!> iiure sstaff
a in no itated l:oaccount 'for drought
Is mil iiuirface
Paige 16
10.0 PROTE CT1V E N ESS ST A TE M ENT
OU I involved the c o n s t r u c t i o n of EI waiter supply system to provide r e s iden t s m the a f f e c t e d areawith EI permanent supply of safe d r ink ing water The water supply system IIEIS been in operation sinceSeptember 1994. The r emedy a t O U 1 is protective of h u m a n health and the environment.
OU 2 involved tine consolidation of co>ritamiriEited soils to t h e cap EtreEi and construction of ani tnpe rtneabl e barrier ove r the conso lidal ed c o>nta mi natecl so il ls II le OU 2 re rnedy cont inues lo mi n irn ixe thec o n t i n u e d release of c o n t a m i n a n t s t ( j the groundwaler and prevents p u b l i c exposure to the contaminatedsouls. The remedy al OU 2 us protective of human health and t h e environment .
OU 3 tellies on monitored natural attenuation of contaminated groundwater w i t h a contingency foractive pump EindtreEit , and ins t i l u t i o rial controls lo prevent t h e u < e of groundwaler in the a flee led area Itwas o r i g i n a l l y projected that na tu ra l a t l e n u a t i i o n would require 24 to 28 years to achieve t h e target, cleanupconcentrations. During the most recent sampling!, event in September 2002. three of the fouir indicatorcompounds were al or b e l o w the target concentrations;, and I he extent of the contarniinanil plume continuesto clecrea se The remedy at OU 3 is expect ed to be protecl ive upon compJeiti on , a rid in the inteir i rn , e xpos lirepathways tha t c o u l d result in unacceplEible risks are toeing corn rolled
Because Ihe re medial Eic l ionsa l EI) I O Us at the Western Sand a ricl Grave l Site are protect ive , the Siteis p ro t ec t i ve of h u m a n heal th Eind the e n v i r o n m e n t .
I f . r j ME XT RE VIEW
The n e x t five -year review for Ihe She is required i n September 2008, f i veyea i r s fro m l he date of t h i srev iew.
12.0 APPENDICES
Appendix A Site MapAppendix 6 Tables Docume rat ing Remedy PerfonmanccA ppendi x C F igu fes Doc urns: n t ing Reni sdy P?. rforrna mceAppendix D A n n u i a l Isocoincentralion IVIapsAppend ix f ] Plezoraetiric Dala a.nd Groundwala Flow MapsA p p e n d i x ! September .2002 Site Inspection ReportAppet id ix G P h o t o g r s i p h i c Suirnrnary of ISiite Conditioms
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D
o
[>Be:-OCI
Mi) Nil
Jun-01
IV3 cs! *•& 'Zi:n I i». ^>. G
i:
Oc:
i::i
in
Location12 :i
I2IVI
120
I3S
I3IVI
II3D
'HI-IS
II3M
III3D
C2S
cm
OiielhVlphtlialEite
Oii-n-E3utylphthalat8
:iis>(2-(!lhylh«.«yli!phthali:itf!
DiiE'thylphthi-LlEite
Di-n-IEiutylphthalHtB
bi£i(2 •ell'iylhexyl ipKhalatB
OiiE'thylpil-ithalate
Di-ri-IEiutylpWialatB
bi5(2-el)-ii'lhexvl)plifhalatE)
biEi(2-Ejlhylhexvl)plil:halatE>
l:irE.(2-E>t)-n'ltiexvl)phihala'tE)
Diethyl|:hthalatc
Di-iri-l:njtylphtlial:it<3
l:ni'S.(2 etliylhe:<yl)ph1halaf:E>
l:ii'E,[2-E!t)-i>'lhe:<vl)phlhEilai:B
I:«s,(2-E!tliylhe;<vl}phlh£ilat'8
Isopliororifs
l:is(;!-ettiylhsi;<yl]phlh£ilaie
Dicthylphthalatii
l:is(2-E>tliylhE!xyi)phlhalaii?
Diethylphthalate
enenI:Linijji
D.IJ
[) SJB
0.2 J
O.IJ
0.2JB
0.2J
O.IJ
0.2 JB
0.2.J
ND
O.IJ
0.7J
0.09JE3
0 3J
ND
ND
0.2J
ND
0.2J
ND
O.IJ
91:1.Hi[II
ND
ND
50E3J
ND
ND
32 (JJ
ND
ND
50IE3J
261-iJ
0 !i 1 QIJ
ND
1IJ
;: 10U
1 (10U)
SOIEU
MD
Si (10U)
MD
1 (10U)
2J
l..i:)caltioni:
CilD
CMS
(MM
C5S
Di-n-butylplittialatE)
bis(2-i?thvlhi:i)cyl)pliitlii:ilat(:
bisi2-i?thvlhi?>cyl)phth,=il£it(:
bi8i2-i?thylhi?>cyl)plitli,3lati:
Di-n-butylphthalatEi
bisi2-i?thvll'iEi>cyl)phtl',ala1i:'
IsophorariE*
2 4-Dichloiophi:'rK3l
(3 2.1 El
0 ?J
ND
ND
MD
MD
MD
MD
3.1
EU
1.1
ND
1 ncui
0 51 MGUI
IIGUI
:i IIGUI
1.1
2 I1CU|
1 ricu i
MD
:u1.1;•[)4.1
1.1
0 7J
ATC As Siociates Inc Pag© 2 of 3 Project Mo 50.57074
Location
C.SO
C6S
OHM
'CiEiO
Notes1
Cciproloaotarn^
4-U MC)io-.:i-Mt!myl|.ih(ji 101
8-IMi5lhylnaph1halBri0
DisMi-iylphlhsilate
t)iii(2-ethylhi=i>:yl)phthi=i(:ito
Di-iv-builylphttialaitE)
t)ii>( 2 -ethylli ia >:yl )ph ttiailato
bi!s(2-i:tiyllii:!^l)phthalat(!
bis>(2-«fl'iylM{?>ryl||3hthalat(s
biSi(2-oi:hylMe>:iH)|3hlhi3Jat(i
en'-.itlit.
'I'
NO
2J
0 SJ
0.4J
[) 'iJ
0.2J
MD
MD
MD
MD
9a.u
0.9R
o.yjMil
Mil
* |10Ui
M[i
2 |10U)
2 |10U)
47E3J
2 (101.1) i
Tor duplicate samples, the highest concentration is given.Unite. •• rnicrograms per liter (ug/l)MD • Nol detectedSernivolalilesi were not analyzed in 1998, 2000 and 2002.1 (lOU'i - estirnaled value detected be lew detection limit (1
&'•'
1 z ;I '.
o " o a
'i I:' |l i i! < S" <: o <: ?>
o !:' :> o c,
i '
I SI
1:1 " a o a
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ii! S ' P '
i i ' 1
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<:> :> EJ <:•
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ii i Ei! I: &
SamplingMonth
Sepi.erntaa-8.9August--9i )Movembei-90Se pi E:rnber-9 1Dec ;:mber»9 1JuniE:--9 2SeplenibE:r--92Decenrilx:r-92M;u<: h -93Jun.B-93Seplennbcr-9 3December- 9 :>March-94June-94September- 94DExembcr-94Warch-93June- 9 5September- 9 5December -9. 5March-96Ju ne- 96ikptc'inbci • 96Dsceinbc'i-96March-97Ju ne - ?7September -9"Decenibet-9'7Man:h--98June -98SE:plember-98.Dcce mbe i -98.M.arch-99June -99September -9'}D e c e m b e r -99March-00Ju rie -00Septeniber-00DeceTiibeT-OQMar;;h-01J u tie -0 ISeptember -0 IMaich-02Scp1teniber~02
Signed Rank Test
"I" < t(a,n)
«-18
_ "f
•469131821242''303336394 245483154376063i£>oi ) 9'.;'5"A
; i>-]\"i)01.3>619
102105108N 11 1-11171 2012.31.26132138
Passed
Tlneoir eti cailC«IIU:IMI trillion
(ppb)34 02 4 822 817 215 813 312 .2U 210 39 58. 78 0'7 3(5 '76 23 '73 23 05 05 05 05 03 05 05050503 03 0S i )s.ososo505.05 0xu505 0.5.05.0.5.0.5 0.5.05.0
Since
MaiimiiinConcentration
( P P " )5<l 013 01903 0
28 55.0
2 I 0s.s4.0
59 01.4.5.22.0
2 3 06.6.5..52.S5.11 .19.91.47.410.00.31.11.9Ui 2i 0I 9
1 1 .00 30 3
1 6.08 42 02 00 fi4 76 [)4 92 7S i!4 00 3
'<',0 0
.- 1 1 8• 3 8
-14 212 ' '-SJS 8-5 7-6 34 9 3-"I 3-2 8••3 316 30-1-0 2••? 40 I-3 94 9-3 62 45 0- 4 •'- 2 S!- 2 13 il
- 1 8- 2 0-3 16 0•4 5-4 51 I 03 4
- . 0- . 0•4 4-0 3.1 0
•0 I-2 3.o s•1 0-I 5
AbsoluteVail ue
v,0
1 I 8.3 8
14 212 '78 38 8S 76.3
•1 9 57.32 85.316 30 40 22 40 13.91 93 6I A5 0-I 72 8.2 I3 II 82 03 1(i 04 54 3
1 I 03 43 03 I)4 40 31 00 12 30 81 04 5
"P h •••
R,
I412443423839>!36433. '7P3.3446413-it.
25312314323016122010
111213527274022I SI S26582
1.31
82'7
W,000010100I000I1001010]1000]000100110000100100
SuiinilJEUOV,) ==
it(a,n) -
(R,)iw,,io000
4 203?004500044(5(]0j
031[)
1-132000
200003300
402200008.00700
,S8 7
6(M
FE:bruary--89!ie:plernber-8!?August-90Novernber"90September-91December-'?!February 92
J iurLe-92
Septernbeir-92Decernbeir-92March-93June-9:!SeptE:niber-9:iDecE:rriber-y 3iV[a.rdi-9JJune-!) 4Se pl.enibE:r-94Decernber-94Man: h-93.Iune-9 5September-').;!Decembsr-9.5March-96June-96Sepleinber-y6December-96March-9'7June-97Seplember-97December-97M:arch-98June-98Sep(ember-98Df:cember-98,March-99June-99September-99Decetnbcr-99M,arch-00Ju tie -00September-00December-00March-01June-0 ISepte rn.be T-0 IMarch-02September-02
10
Y,E:e:biruaiy89Scpnenibeir-8,9August-90Movembcr-90,5e pi.ember--(3 1Decerriber-9 1Febru arv -92June-9 2SepK:niber--9 2December-92Mdm: h-93June-93September- 9 5December- 9.3MarctL--94June- 94September- 94December- 9-1Marcti-95June- 9 :>September- 95Deccmbcr-95March-%J u n e - 96September-';*!;December -9(5Man:h--97June-97Septe tube t -9"?Dece tnbe r -9"!March-98J u n e -98,September -98Dcce rnbe r -98M,arch-99J u n e -99Septernber-99i:)ec«nba~99Mar;:h-00] line -00Sjep'tanba-OQDe:;eni be ir ••(>[)March-0 1] Line-OilSepte imbeir -01March-02Septeinbe,r-02
-2 3-18
'T• /
-469U15IS
212427:in333639424548515-1576063666972•*•;
78,818-18'?90939(599102105108,11 I11-1in1.201.231 26132138,
200 0I 73 5
il 38, 8,1 30 610(5 1} 00 496 48 8 98361 8 714 1(59.7f i x 661 758 154. 751 448 44.x :>4.2 940 337.935.733 631.629 8,28, 026 42-1 8,.23 322 0.20 1]') -118 3VI 2\6 213 214 313 312 112 011 310 610 [)9 48 37 4
200.051 01(5 0'23 011 08.01 2 0I '' 010 86.S
30 03 9 09.7
34.011.019.02 7.0-1.98.012.017.01.2.01 1 .013,. 04.84 . 1
] 0.013.03 3I 0
4 18 911.00 3
12.018,05 i!4 !!2 33 72.73.07.28.56 513 02.8
0 0• 1 1 6 3- 1 2 2 8-107 6-9 5. 7-92.4-84 4- 'H.9-7.2 8-7.2.2-4-1 1- 10 7-5.: 9-2"i "/•41 [•35 7- 2-1 -1-43 5-3 '? 5- : , ( ) < 3- 2 3 3-1 3 '3-.2 4 1•2 0 6- .2(5 !i-2 3 1-18 0- 1 3 4-2 1 5-.'. 2 3-I" ' 9-11 8-8 4
•• 1 7 80.2.1 8•9 4•9 5>
- 1 1 0-9 0-9 3-6 3-3 -1-1 5-2 96 "i-4 (5
0 01 1 6. 5122.8107.693 192 48,4 41 1 9"1 2 8'72 24 4 130 735 927 747 135.724.44 3 . 53 7 530 923 ' 32 s 924 720 626.82.5.71 8, 013 -12 I 5>22.. 3n 91 1 8,8 4n 8,3 21 89 49 3
1 I 09 [)9 36 33 41 52 96 74 6
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4-143423941403:6
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I II I( 1( 1( 1( 1( '00(](]000000[)[)0000000000000000.3000000000<3(]
Surrrp.li.no\\ 1 Hindu
FebrtiiHY-80September -89Augmt- 'X)No\ ember- 90Sep tember -91December- '!][•cbruiiA-92June -92Sepi.ernber-9 2Decernber-92Ma tc h -03June-'! 3Se pi ember- 9 iDec ember- 9 3M a r c h -9-1June-9 4September- 94Ds:(:ciTibci-94March-'!1:*June- 9 5Septcinbci-93December -03March-<36Ju nc- 9<'iSeptember -96Dcce rube r -96March- 9 7June- 1 /?September -9"'December-';1 ' 'March- 98] u ne -98Skip tern be I-'! 8December-'! 8Match- 99J Line -99Scpiteniber-9'9Decernber-9yMarch -00)urie-(X)Se pi eniber-j[)0Deceniber-00Maic h -0 1June-0 1Seplember-01March-02September-02
1 V Jl I-- *». 'l.J'j'1! 'i..' L '1 k.l 1 _l 1 1I l_. J.^r JL 'kj ^1 L l l j l ' lk h,.J 1. i » 1 1 IL- k._J II Jl ^_» IL'fc T J L J 1 JL I-J ' .-
Target: Coin c nielra 1 i o m •• 2.0 ppito
A i:i:ui;].lTheo re t ie nil VI a dimtunri Absol tute
Commit r,ai:i mri CoiKiEiiil.r.atioiri V aim:« ( p p b ) (ppb) v, Y,
-25•18. i
•4-_\915
18212 4?73033'1639424:48515-1:>'/60S3'i<5j9727578ai848'''!'()'!3'36•39102105108
I I1417202:>263238
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17 3] . :> >1 .3 812 .31 I 09 88 87 87 06. 3565 05 05 0.5 05 05 0:: 05 05 05 03 05 05 05 0
430.0160.088 064 043 590 51 I (119 053 02.07.4
2 1 01203>.91 .118.0''6.080.03 854. 53 388.5] 7.0] 7.053 .0
1 51 0
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12 0J.O6.41.02. 33.17.13.03 4
23.06.02 . 11.2
0 0-169 9- 1 ?'3 R- 1 30 -1-8 9 8-2 8 5-9 9 -i••75 9• 3 1 7- "/ i 6- & I I 1-30 3>-41 0- 4 i . ;- 4 1 Is- 2 ( 1 341 X49 -1
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F igures Docu menting Remedy Peirfo rinnan ce
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Appeinidix 13
An iniuaI Isoconcentratiion Map!•;
p3
8 i
1
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/y i"I ": -i !i*:«' [!i *4f ijl :!• I't IE K' bj tri !^L
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WESTERN SAND AND GRAVEL PIEZOMETRlC ELEVATI0NSFOR SEPTEMBER 2002 SAMPLING EVENT
2 82.48235.53
C2M 235.47C2D 23.5.46C3S 23.5.20C3VI 2 5.x 18C3D 255.26C-IS 254.7-1C4VI 2S4.&2C 4 D 2 54.73C 4 B XCSS 254.73CSM 2.5468C5D 2.5469C6S 254 83C6M 254 "UC6D 254 "i 6
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W lii STER N SAND AN D G RAVEL PIEZO ME T RIG E L E VAT ION SFOR SEPTEMBER 2002 SAMPLING EVENT
Loc al ion
September200.?
file'vaaon
IBS
IBM
IB D
I B B
IMM
IMD
115 S
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II5 D
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3!
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STREAM GAUGE::.SGr I n ol me asu n. ci - li.nv st n.'£m i c 01 idii ion -,SG2 nol measiiirod - Irnv s t ream c 01 idii ion •SG2 A not me asurcd - Ii.^'» s>l n: an L c 01 idii ion •SG3 not measured - i i i < i c r e s s i b l e clue 1.0 flcoding IIQJTI beaver dam
PZ:'/PZ:SPZ:S
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X
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HISTORIC WELLS
D W -:G2-1
x Wells; temporarily sealed in 2001 in accordance wilh 8/7/01 III PA let ierAll elevations ireference mean sea level
THEREFORE, NO PIEZOMETRIC MAP WAS PREPARED
SEPT EMBER 2002
MARCH,, JUNE, AMID SEPTEMBER 2001
WE:Sri-RNSA,N'[) AND GRAVEL PIIEEZOMEEl'RIC EELIE VflVION'S
FOR SiAVIPLING EVE:NTS
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'284 66.25 6 4625 6 4925 :i 41256 1 :256 1 1256 \"/255 &'/2 5 5 . 7 . 3; 'i S 6!^'} ''t S Q"/
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dry .it 1 1 .432.: 5 -1:!2.: 3 822.: 3 ":6253 5925 3 2-,
WIEESTEEFiN SflND AMD GRAVE: L PIEZOMIEETFilC ELEVATIONS
FOR SAMPLING EVIEENTS
March
:BOI.luiric
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SCI
sc:iSG.2A
SGJ
V ol .es:
A l l ' tieaiiuremens .3 re rt:t:t h a m mean ssra level i 'MSL)
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SHALLOW WELLS
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MEDIUM WELLS
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MARCH,, JUNE, AND SEPTEMBER 2001
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PIEZOMETRIC DATA
MARCH,, JUNE, SEPTEMBER, AND DECEMBER 2000
WIEESTEEFiM SAMi:i AMD GiRAW'EEL. PIEZQIVIETFilC EEUE WATIOMS
FORSfliMPLING [EVENTS
DAI E
Mrl!,[. I
C 1 1)
C2S
C2M
C2 D
CM!
C3MI
Cil)
C*Si
CJIMICM It)
C-I1FI
CSS
C J M
CSD
C6S
C6.V1
CliD
I I*
11 VI
HID
12 S!
12 V]
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CIS
13 M
HID
[-('!
MM
] 410
ISS
ISM
I:: D
] f ,S i
1I6M
lii I)
17 Si
] 7 MI
[VII
ISiS
] SIM'
March
2000
285.42256.572.:> 6 562 5(5 4 92.5(5 2425(5 212.5(5 2 '82.55 80253 86255 83256 06255.91255 75255.832 5 7.06256.24256.25
255 .7 (5235.72? •> :i 7(5: > 5 3 10:> 5 :i IT;
2 54. 1 32 54 .732 54 .762.59 702.5(5 (592.5(5 412:54 832:54 (59254 87254 31254 46254.38254.72.254.712 54. 722.53.30•;.;:; :),;,
• ) • ) - , 1:1-3
Jniuii!
21X10
2,85.04
2,36.61?% 59
2 56. 28
:>% "'(5
2 56 29
255.90J S '^ ftf)
256.142.55.992.55. a 12.55.9]2.57 272:5(5 402:5(5 4 2
253 82.25 3 8025 5 8 3253 17255.142.35.1.52.54.092.34.612.34,81;> ')':> 69236.912S6..58234.95254.782.54.9(52.54.502.54.492.54.432.54. '722:54 792:54 722:53 742:54 05254 04
,:ii'[ili:ni her
;:i)i)o
282 -1 425(5 122.5(5 122.58 032.35 832.35 81255 83254 83255 12255 4125 5 64255.42255 302 5 5 . 3 42 5 5 . 3 1255 .39253.60
255.27'' •> !i 3 5? :i S '•> 9
254.64254.62254 5825.) / : >2 5-1 .3 72 54 3 7258 482.5(5 142.55 832.34 432.54 252:54 482.: 3 8125 4 0625 3 97254.21254. 342 5 4. 3 a253 762 5 3 . 5 825: 59
DecrmhE!
2001)
28.3.98256 68
256.71
25630
25(5 3''
25(5 43
255 94
2.55 9 7
2.55 95
2.56 10
2.35 97
2.: 3 88
25 5 9 3
256 80
256 29
256 37
255.85
255.82
155,82
2.55.13') 5 5 09
"I •> S 052 54.25'} 34 85254.86259 90256 &~l256.3925-1.79254.632 54. a 62 34 .2 92.34 5 32.54 4 5254 7]2:54 812:54 82254 18254 02254.02,
WE: STERN SAME) AMD GRAVE: 1. PIEZOMETRIC ELEVATIONS
FOR SAMPLING B/IE:MT!i
I CIS
ii i D1.I2S
1.I21VI
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,115131
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(MM
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PIEZOMETERS
PZ1
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HISTORIC WliLL
\l,
E-:i
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A-:IIG z-sG Z-4IJW-3
G.Z- 1
254.56
2,54.74
256.01
2 5(5.04
256.01
255.44
?v. 402 5: '.43
253 . 1 1
253 ,15
253 13
254 31
254 14
254 39
253,80
'?':"> 8'-'253.80257.00
257.62
2,57.87
2,5.3.91
2,55.66
253.35
253.55'> ;i '] ') '[
2,53.09
2.52,82
255 8(5
255 80
diy at 1 1 .45256,272:53,98253.81253.67
253.35
253.74
254.89
256.08
256.12
256.01
25.5.49
25.5.46
;i'Vi 54
2, 36. 53
2,53.16
253.19
2 53 .08
2 54.42
2,54.2"'
2.54.51
253.88
2.53.88
253,85
25"' 6 2
257.89
258.27
25-8.68
256.02
253.44
253.68.
2,53.56
2.53.1.5
2.52.90
256.11
2.55.812
dry at 11.452.56.202.53.85253.67253, "70253 42
2,34.20
254.36
255.50
255.50
255.53
254.97
254.98
254.96
256.13
252.64
252.6,8
252,67
253 92
253 72
254 00
253 41
253 412:53 ,41
2:57.17
:>'tfi S'5
2,56.54
257.23
255.36
252.96
253.13
252.74
2.52..30
2,5136
25:5.64
255.34
diy at 1 1 .43255 292:53 52253 44253.41
253.06
254.44
254.62
256.07
256.11
256.08
255.55
"> 5 :i 5 '52'n 5(52 56. 1 5;> '>! . 30
253.34
254.30
2,54.12
254.36
253.93
?5"1 94253.90
256, f! 5
25"' 5925 7 482:57.76
2:55.52
253.46
2:53.62
253.18
253.36
253.02
236.20
255.91
drv at 11,422 57.3 82 34. 1 62 .53. SI2.53.862.53.57
DATE,
STREAM GAUGES
SGI
SG2
SG2A
SG3
Ma itch
2flO«l
2.35.05233.70233. 65232.30
Jinn:
3. BOO
242 20252 05252. 40251.60
September
20I1I)
234.14233.50253.60231.98
D«' ember
:i mm
254 65253 3.525 3 50252 40
Notes:A J I measurements are feet [ram. mean sea. level ('MSI-)
MARCH, JUNE, SEPTEMBER, AMD DECEMBER 2000
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MARCH, ,1U NE, SE P TEMBER, A N D ID EC E 111 B E R 2000
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MARCH, JUNE, SEPTEMBER, AND DECEMBER 2000
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236 68
256 7]
256 6 1
2:56. '> /
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255.92253.9:5
255.92
256.25
2 . 5 ( 5 . 1 2
23:5 !J2
256 05257 i!2
256 81256 '?;!
255 9425:5 89255 9 '2255 30255 ;>;.255 17254 04254 8.5254 84260 6'225V ; > ]
256 9125:5 03254 8523:5 03254.'/0254.:;].254. -16254 792.54.84254.88253.802 54 062 54.06
3:84.7'?! 56. 1 1J56 .181.56.09155 84!3S 80255 85255.36255.402:55.382:35.65235.41235.262,55.34256.18255.66255.72
255.29255.27255.302 54.60254.57254.54253.092 54. 1 7254.19259.042,56.242,55.972,54.38254.22234.41233.78253.86253.82234.0 1254.15254.192:53.00253.452:53.45
284 892:56.222:56.22236 16•' -in •' [
;> ;s :i 87255.93255.502 5 5. -IS!25:5 -17253 :58255 44255 37255 452:55.962:55.652:55.71
2:55.332:55.31255.332:54.672:54.652:54.602:53.952:54.41
2:54,41
2:59.77
256 28
256 0.5
25 4 36
25 4 20
254 43
253 91
254 07
253 99
254 39
254.39
254.40
253 58
253.52253.53
285.34
'} ''6 1 7
2.56.41
256 29
256 09
256 04
2:56.10
2:55.64
255.64
235.65
2. 55. 892 5 5 . 7 1
255.57
255.63
256.63
255 94255.97
255.53
255.52
255.55
254.88
254.85254.71
254.01254.56254.57
259 .19
256.43
2 56. 1 3
254.62
2 54.44
2.54.65
254.23
254.23
254.18
254.49
2:54.52
254.55
253.55
253.72
253 73
insH I D
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PIEZOMETERS
P Z 1
PZJ
PZJ
PZ4
PZ.:i
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PZ.7
PZS
P'Z9'
HISTORIC WELL,:.E
E-3
C
A -:iGZ-S
GZ--4
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GZ- 1
254 81
254 95
256 20
256 23
256 [ ; >
25:5 58
253 34
253 36
'256 38
253 16
25 3. 18
253 17
254.31
254.34
25 4 34
253 88
253.87
253.82
2:57.54
2:53.04
2:5 3. 842.59.12
256.07
253.20*
253.49
252.93
232.88
236.18
2.35.88
±ry at 1 1 , '13236.57253.74233.49253.70253.37
2 54. 1 9;> '>4 Vj2S5.>t255 :i9255.55254 9-52.54.S9
2.54.91
2.56.24
2. 5 2.. 5 82. 5 2. 582.52 .602.53.882.53.67
2.53.96
2.53 382.53 292.53 25157 -12
251 05256 87
257 6.8
255 '1 9
252 85
253 10
252 95
252 '10
252 25
253 63
255 34
diy at 11.45253 'IS252 39252.74
253 10252 82
2: 4 07
2. 4 25
.', . 5 5 52: 5 56
2: 3 38
2: 3 07
253 05
25 3 04
'255 842 5 2 . 7 ]
2:5 2 74
252.72
253.85253.57
253.94
253.34
253 .29
253.27
256.89
256.93
256. J-2
2 .57 .19
2 5 5.] 8252.JK}
2,53.13
252.69
252.67
2:52.43
2 5 5 . 7 3
23.5.42
diy;ii: ] I . -1 3257.182 5 3 . 7 8251682 5 3 . 1 825.3.71;
254.56
254.4825x77
2 5 x 8 1
255.82•'•;:; ? 625x23
2 5 5 . 2 4
256.2"'
2 32.il 4
252.86
232.87
254.09
253.89
2 54. 1 5
2 5 3 . 5 6
253 57
2 5 3 . 5 5
2 56 7 9
257 28
257 31
2.57 98
255 57253 i;
253 29
252.94
252 81
252 57
2.55 90
2.55 6 1
dry at 11.422.55 87253 822 53 7 3253 482.53 15
WEST EERN SAND AMD GRAVE; L. PI IE 2 3 ME 7 R 1C EE ..IE \/ ft TIONS
FOR SAMPLING. I E W E E N T S
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MARCH, JUNE, SEPTEMBER, AMD DECEMBER 1999
iiii
DEEP WELLS
MARCH, JUNE, SEPTEMBER, AND DECEMBER 1999
C!oo
ou
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MARCH, JUNE, SEPTEMBER, AMD DECEMBER 1998
255.12256.10256.04255.82255.76255,82255.48255.50253.30253.72253.40253.26253.362 56.13253.94255.93
' » = !
WEST EEKN SAND AMD GRAVEEL PIE: ZOIVII: TRIG EELEE VM'IONSEEVIE:NT=>
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2 5 : i 6 3 2358!: 2 5 : 0 6:>'i :i 91 256 04 :':i: ''i
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2 J4 94233 17
DATE .Vlai rc ln June Septrirriber I'tocrrriher
1 !><>« 19"W 1 !><>8
STREAM GAUGES
SGI 25.5.10 25330 254.20 2:54 30SG3 253.50 above 234' 252.00 252.28
SG2A 253.00 Hooded 252.40 252.40SGJ 252.20 doodled 251 .70 2:51.7:5
J'kile-s
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MARCH, JUNE, SEPTEMBER, AND DECEMBER 1998
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FENCE; GATES, LOCKS AMD SIGN;;REMEDIAL ACTION AREA CHECKLISTDRAINAGE SVVAi.ES AND STRUCTURES CHECKLIST
INSECTIONBY: Joseph Lang. DATE: 00'12/02
WellName
C-1C-2-SC-2-MC-2-DC-3-SC-3-MC-3-DC-4-SC-4-MC-4-DC-4-13C-5-SC-5-MC-5-DC-6-SC-6-MC-6-D
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Comments;i::or C-i, na work within 50 fi radius Y 1 N
Upper srteel casiinijj ;md ssteel lid damaged
Steel! well casing needs la be painted 3/03Steel well casing needs to be painted 3/03Steel well casing needs to be painted 3/03
Steel we'll cssinc] needs to be painted 3/03Well temporarily Healed / 'welded closed
PROTECTIVE POSTS INTACT?
WellName
C-2C-3C-4C - 5C-6
Mum ber4 posts;4 posts!4 fJOiStSi
4 past:;4 posts;
YesXXX,x;X
Mo Comments
* Other comments, e.g., significant listing of protective Gassing; protective posts damagedwe"l! name illegible, etc.
SIG MATURE: DATE:
Fence & Posits;intact, No erosion Murrib&r of
chainlink <3< gaps unce r signs tobarbed »vire fence be on fence
fres : ofdarn sage
Gateml ad
and locked Corn rn en Is;
SouthSouth WE: si
Wa-,tNcirhE; as)
XXXX":<:
x*X '
X.X
X
1 on fences, 1 on gate22
XXX
2 on fence 1 on gate X4 X
XMo gal E:No gale
xNo gate
See belowSee below
See below
>: mean:: YES' means see comments, (below)
Othei corTirnents• Two temporary "Ke sap C L t • No Tresipasssing" signs (on I he t'onl gate (south side I
sand along I he north Isance) were replaced by ATC! with perrriEjnenl "Conger - Keep Our sign*!• An animal burrow was; Git)served underneEith Uisa east s.ide fencing ATC filled in I h s s hide
with rocks• An animal burrow was; ab served underneath (he north side fencing Al'C filled in I he hole
'wi thi roc k E;• VegelEJtion was observed growing along the northern portion of the east side fencing• One sign along the northern portion of the ?.as\ sidel'sancing was obi-t jrved la be haded ATC willreplace I h s a s ign in iMsarch 3/03
• Young t ieaes «vere observed along the sjouthern porlicn of the east:; de fencing,Ealong the southwest fencing, and along I ha wesl side Pricing ATC recommends I hatthe treesi/vegelEJtion be trimmed Earn:! mainlEJined to f j revent ooiential dEarnagsa to the fencing
• A kink in I he ch-Jin fencing on Ihe riorlh s ide was; ot;s;erved The kink is nol of concern at this time.• A ID-foot long, 4-inch diameter, discarded steel pipa w=as discovered by ATC near the south side
south side gate for recornrn sanded 'ernoval off-sitefencing The steel ci[3s: V«EJS plsjced ipijude Ihe soi,-;:' '•"7 (.<"''
SIGNATURE C " ^-- \ £ T L «.
WESTERN SAND A.ND GRAVEL
REMEDIAL ACTION ARJ-A CHECKLIST
r subs dence damage (or(EKiequate fros* heave Gocdrainage) dariaqe'i veqel'ES tion
• The cap was fieshly IT owed- No evidfiTce of Ejrumal track:; or burrowing were obssjrved in the cap ar<=c3 except lar \wa animal burrows
which were observed along the fencing. The animal burrows W E = r e filled with rock:;
SIGNATURE DAT;:. ' u •!..
WESTERN SAND AND GRAVEL CHECKLISTDRAINAGES WALES
DRAINAGE SWALESGood vegetation
in swaleNo settling No ercsion (but not
air subsidence" damage (or overgrown so ;==;(proper frost heave la restrict
SOUTHEASTNORTH
aramaqejXXX
damage/X iXX
wauer now]XXX
See belowSee belowSee below
Lommenis
DRAINAGE STRUCTURES
No sett l ing Mo erosionor subsidence" damage (or
(proper frosl heave Rip-rapdrainage) darnaqe)"" intact
SOUTH ASOUTH 13 j! SOUTH CNORTHEAST'NORTHWEST
XXXXX
x.X)(.XX.
XXXXX
See aeSee tie.Bee beSee beSee be
Corn meritsawawawawaw
x means YES
* e.g , no low spots or ponding of water in swale or structure"" e g., sides of swale/structure <:i''E5 intact, no eirosionail tireakoul•; -a l lowing water to
Mow ciway from swale/:>truc1ure centerlineSouth C drainage structure is not crilical to cap integrity
Appendix G
PhiQlographic Sumnniairy ol Site Condi!ions
flARCH 2 003 SLIF'P LIEEMIEE NT Al. PHIO TOG R APHIIC DOCU M EE N 1"," T10 MWESTERN SAND AND GRAVE I.BUiRRILLVILLEE R HO DIE ISLAND
I - h L t < K j r 3 jli No 3 I. ookirg saulh ;-it tlle soulllei r | > < > i t i < 1 1 1 jl he I,iiidl II Mole c c n =,1 -uctioi i, i < t ,'ilics to the sdLth 3 C \ s l . i t i d f i
f - 'ho t3g i< i [ ih Mo ;] Lacking west = r l h £ 3 \ w e s l e r n pj i l iL i of the andi
MARCH 21.10.i SUI-'l-'LEIVOJTftl. I-'HO I CO? AI'HIC DOCUME:N 1 A T I O NiVIISriiRM S,»NI.) AND G K A W E ' lBURRILI..VIL.LI;: RHIOIH: ISL«,MIJ
1^^$WB&»'•>*& !-"W!SJ!i?:; 0i'5rv' if '\iisiy^&Vv' - "*^V S"i-
WCJ&&ssaa?^^SipfflK«5.w ';: #' i«;' ' ilii !!lii' . ' ( ? • ' • '"!:!"•;>f : -•' "'!' i, ujilmil''!) •"< .mi •" . 'MI!I'!!)I|' l>.MknK^siiiMI *:; :,:iiiii!!!!'!!l.iii.inili muii!!!iik!ii!!liii!!-!iSiiil r , ..-,<' -.• - ' " JiI;!......
IIP ii
1 3 n >i t o , i| > l i Ni t ( i I', [, ic il d 'in t ii i t ij, i[ 1 1 illei |/',c( j < '< I ,M t 1 1
pip pN-*'iiiSaSlsSgl:
I h ) d t i r j|)h N ) ' ) ' 5 t K c i ) , )u< | ( ••( : ?A .!'- t on IV 3 i h ' ( ) , ' ( ) ( ! > •>
:.:,wr;f.,'' ' ''
^- ' ' J •> , \ ''
Nd 10 ,,|D-,( jp ( h j ldtir iph of :.ti cdt i c 3 j i j i 1 S( i ,j , ) • - o 1 ) ' E ri'cil on M < i r ( h ?3
MA Fi'l.: HI .t ()i 1 3 SU f] P1. EE M!E M I AIL IP HO T OG KAP HIC I.) DC UW E S T E R N SAND AMI) t i l - iAVCLI3URRII.1.\/II.I.E, F?HOI)I: ISI AND
F ' l c i t o i j i t f M\d I <' ' \re 3 ( i f fo in ic t w< llclustci
IVIARICH 2003 81.IPPLIE!ME:MTAL PHOTOGRAPHIC DOCUMENTATIGNWESTERN SAND AMD GRAVEL.I3URRILL.VIILI.E, RHODE ISLAND
F'hctograph No 1.3 Look ng soulneast Iron rear the scu th€ ' r n landfi I penrneler lenceIhe former h l l s i d e a r e a anc lorrner local ion of nioni loniK; wnll C - " -D
Photograph No 14 Looking scij ' iheasl f'orn the est imated locat ion of monitoring we I C-'I-Dand former hi! side a'ea