Coakley andfill Area

RYE

Grove Rd Landfill

Rye water tower

Site access Operable Unit 2

Operable Unit 1

1

rm1

Used to manage contaminatedgroundwater at over 800 sites in NH

Managing contaminant plumes following: source removal, treatment or containment

Establish a groundwater management zone (GMZ) by defining property boundaries within which groundwaterexceeds standards

2

• iOlr 1.21111'

L....- I I

NOT6Sr

1, 'fil1& Pl.AM· ts; B-.sEl!l \J POM1A ".LAN IN Tt:£ .ltPf<:tL 201C POP T(nlED-el',it,_:;eCAHilEN:rAL MGN(rORtt-Mil: tEn\alK9 DAT/ED ()!.f1&'1l7 (liOL.CU\,li,H~lli.ru. llilC~ A.f'l.l\JII IN THfZ 1\lilJ &nl MEMT. l'J.R.fliGE'WATt.i\.AID .:;RQI.IMD'l~lER MQf.4TQitl..-; N.N111TUD "SITE.PUN t,ARJEB BBNEEFJNCl, tlC.}, AND CH Y OF PO.HTBWOOliR Bl.9.EIER-f.iPB OOATlONB FOR BITE MOt~rrORINOfONTS. &TilfAM ~ AND\\.'4~ S:UPN,•{V: l,OOA110MS BASeO ON Mi,,CRJ+.ti4T AE-R l.iil. Pl«)l'OGlliiP+i't ./1.ND-lMl; l..~O\\e l;Ff;JlfNel; SITE f'LAN& , .StuE. '1EA:1\JRE L«:Al1 0NS.Mil!J·~E MIEA~PR.QXl!.I..A.TE,

2, .li. Plf".Atni:l'il,Uf; PIIIOPER,TV t,,_lh'E& BA&UI 00 ""OREMOtf~I-~ . PROPfR11E& IN -Mf;!;~tZI 00 Wd;JJ(FAf.l H~L f\OAO BA:SEBUPO.NTCIM4 Of GRIEEKLIINDTAAWI.P fl,,1 (D,lilHJ.ltP.R.IL ,,20111),

>, ---VI$ -0 ~•o•"'.IZ _ _,,f\,IIJ' l\l,,tOMAy' O, "'°' l"<WQOQ• I" 'rHI --...._t:IATIDN .,.,.,,_ l'I" t¥NOOCJ.;~i1.'FE'i,., MD :&tllJ iGMZ:-EXP/1.NSkJNAREII UIAKl5HED IY TIE i!MJ GW MTED .WI.MY 7. 201 "1,

COAKLEY LANDFILL SUPERFUND SITE NORTH HAMPTON & GREENLAND, NEW HAMPSHIRE

SEPTEMBER 2017 lATERAL EXTENT OF TOTAL PFOA + PFO-S IN BEDROCK GROUNDWATER

GZ-109 + [1 ,74J]

,.. EiLQ

FIGURE 16 """ 2'11'17-12-61

JI 10424.008 ........... $LY

"""" Afl SiiO'liN Olfl>&f.\',

SLY

------- ...... --

,..,.

~fPl!m

""" ~

lfflEIWl,

LEGEND

+ "'

[N/5] [HDl

ro-oo•J - 10 --.25CI--soo------

--- - ---

II II

II

-

II ~M~li'O~,._;wru_

uwne Cf GROO~TER MAtl MOORRES"f.ilJCTICf,4zcte

Pi!!P:.rl!fl: Cf' W&Jfll-l1Af'flll

PRCPERn't~!:.t. R~OFWll

S11!EMO

T"!:;IIM!ILNE

OOTSAMPLED

~.Qfl!Jl!.fti;.'i!D~1! ~ -1JOOLII/IT CCNCEtffRA1101i IN1te::.,t ---· l,OC_llC!I_. 1~0e:O.Nt.:£Nlit:Al li:'.N 00Mif0'l.lfl l:.;ocg~Jk;iN cCJKitl;Ji.ljil

D.'$.K 0 ·~1!! N -m IND) -

CES ........ ~&11il

Lateral distribution of PFOA + PFOS in bedrock groundwater

3

7 ii

1:tCIO"

I

NOTES,

1, Jl1& PLAN I& BABEmtlPO.lhtt PLAN IN TlE AP~L »tOKI' rr,LED-a/".J~CIHilENTAI.. MONIFOfllOO kE.11\\011:K" DAtEC Oi!.11&1f1 (GOltUI /,HotllllEl. l~.:,,.A.~LAN IN PE ,9it SeDMBft. ~l\fll_Q:~TUAMJ ~NC71~1ER MQNiTJRl~ ,PLM "TfMD "'SITEPUH ~EB EIIGIMEEi;j NCl, N C..], M DCHYOF,POiUBMO\ffil SLEl,EJER,,llP9 t.OCA.TIONB FOR SITE MONll"ORiOO.PClt lTS . S.tftt.-.,1,(S AND\~ TEJI ,51.#\. 'f If.el l,.OC,l,'1)0tf!S- IA!EI) ON Nif.CJdt~T ,-f;;II \.EI L PMGTOCftAPtll ».lb-lilE ,r.fJjj!,l,li; fU!FEIIU:N-'!E 51r.E fUMi , .SfT;E f.EAJIJRE LOOA110NS.ANJ-8GALE ARE.APP~IMATE,

:t /i. f'F-JtO:x)WI ll; H Of'~l'V ,i,Ji;,i;.'& ~ 00 AJIORt;ME;ltf~O Pl,ANS , .PR.Ofi{:_Rlll;!I. Iii Cii!~EM!Jt~ ON E.AKJ!A!fT H~ ~ IIA.SEEIUPONTOM40FGREEHI.A."14DTA:XMlt.PA-1 l't'Al'mA?RIL 1, 2017,t,

:I , rHl~~ l8ibAaeDtl,.DN·"Qi~IOLt,lt\lJlf'f"-,At/'~.T!:,DMAV 9, XQll.~ C,,,~ ~ n-tl:!)D.O,tl'A#'!.ICi11,T~ Nl!!',il-JtCII, IWIWilC.O~~J\lin,MOm'!~GMl.EXPNitbN.MtAUiTMtlSJtEDIWTl£~1;,GWr,,.t,tED~1.2Q'I�,

ErTin.e

COAKLEY LANDFILL SUPERFUND SITE NORTH HAMPTON & GREENLAND, NEW HAMPSHIRE

SEPTEMBER 2017 LATERAL EXTENT OF TOTAL ARSENIC IN BEDROCK GROUNDWATER

GZ-109 + [""-'»11 - .,.

FIGURE 11 "'"'

" 10424~11 .........,.,,

"""" MlSHOV.N CIEMDOI.

~ PC-7B [<11,jM)t]

BLQ

21>11-11. 10 AFitll'llB

SLY """ """""" S.LY

lfflEIWE.

LEGEND

IBECROCXMOf,fh°ORI NGWELL

UMIT-5 ~ M~m Wi.MA.ef..W6.Nf _.~ Af!nJlletKIN ~

PERM:lER Cf' W£1F1U .. ;,i?PROXIWATEJ

lflOl'C/ITI' •~I• ~!<;/fr OIIWJ\V

!S-'J:fle>-M

- - - - T OM.11,~E

pus) ~ '-~PLE;I

[II.IIOij OONOENJRAllOM INIIO.l

lliiiiiiiiiiiii(IJJ1iiiiiiiiiiiiiii IBOCOll:e,lm.t,TIOfr,I Cotf'TWR (Nnl..)

.. - - - - DII.SltED li\1-ERE NFERRED

I I

II II

II

.....

Lateral distribution of arsenic in bedrock groundwater

4

• IGIT 1:HIIT

L....- I I

NOTI,8'

1, li1&PUN r.,BMED UPOttA.M.AN IN THEAPR._ 20'1i:tf~1fn.ED'EtN~otl~AL»aNfTOft1 l«litE1\WJRk'"DAYEDlleth},Yl1 (GQ\.DE111'..:;~Q1;lt,.TU. I ~~ .\'f"W4 l!II Tl£ ,11i'J tEEI P!i! Et&T. WflF,111;.tw,,,TEJI,~ t;RQl,JM[71~Tffl fllf;t,f f QRI.,.; P.lJIN 1tll..ED -:siTE PLAN" ~ IEB EICIJ~EERINO,. NC.�, MD CITY OF POIITTIWOVTH 8LBEJER,,(F,9 LOCATK>HS FOR E.fTE MONlroflJI«) PONT& imtEAM$ MIC,\\.'dfl !1.ufft,,Y~LC'.IC,i,1l0M$ ~ (;f.l MK~T Al;JII - MiO~P!-11 AAII) ~t.1,"0yfl ~fFl;;Rf»!:I:; $1ll f'W4, -5'1tt F~11UflE. LOC.-.11Q~.Ali!D t,~ALat ARE .APP!l:01«.IMA.1',

:t, Af'J>.fUfi;~T fl'lli!OP,~'fV ~l~S ~ ON .UO~~l).Pl,11.NS, PROflER'fl l;Jl lN'Cli!:J;Et.VM:I ON lti!~AST H~ R.o,11)

8'l..SEDUPQN"TOM~ OF GREE-t4LMD TAXM.l!P R-1 (D,lilm AP-R1L t, 201.JJ,

:, , ~~QM"t' 1$M5(0rJll'OM·•~~-y Ji,,AtrM1'DWK~~ims~et,.tJDttJ, t!i1 1M~~CMJ'~Uci1.T~llllll""ilo.fti:',O o.Ytwilr;QQ<;~,\'f&.MO»!JGMZ.EKP.MSbNMEAH'T"-Rli.HEDIWT1£.21J1JGfri'PDl'i'FED;w,il,wn'7.~,4,

COAKLEY LA.NDFILL SUPERFUND SITE NORTH HAMPTON & GREENLAND, NEW HAMPSHIRE

SEPTEMBER 2017 lATERAL DISTRIBUTION OF 1,4 - DIOXANE IN BEDROCK GROUNDWATER

GZ-109 + (<USJ - .,

FIGURE 13 °"18.

Jlt 10-424,011 WIWMD-'e't.

""" /<SSHOIIIN

_ .. BLQ -2017-1~ flrf~lB

SLY tnx

SLY t!!l.f:l),IJE.

~, I I I _.._ ., __

-

LEGEND {lijQlll(H:lc'.\'IOl,,lU.SIIHt,Y "'6

!IEDROCKMONITOJ.iNO\\EU.

IJ~ T~ ~ <:ft~ltR MAM~{lilENI AtCOfil fl E!!iTRICl'lOl'il ZONE

P~H=TER OF l.ANZIF1Ll,cAPPRC:id!itATE}

~'NLNl • l!!JgHTrJ/rW/1.'f

S.T.RIW,fl

mnlL~E

[N/S] oor""""LEO 10.008] CONCENIRAllOtil Ul'llOll

- 3 - IBOOOJ1:911JtAliloNCOWIDJR l,l)Qlt:i - 5'Cl - IBOC0i.:::eftRAT<}Or,ICOtffOOR(OOtj - 1DD- l9000.Jt:a.fTJb\t10NCCllfTOOR(UQ\._'I liiiiiii - Ml • lllliiiii D.1.9:JiEDV-'l'ERE NFBIREl

-

Lateral distribution of 1,4-dioxane in bedrock groundwater

5

M pl1

No violation of standards outside the GMZ

If a violation identified, permittee shall submit corrective action plan to agencies

Upon approval, permittee executescorrective action plan

6

c:] GMZ {Approximate)

PFOA + PFOS (P PT) s1.11 p1y

\Ve'.I

• MDC111Drlng surrace

Well water ... � ~70

~ � 40 - <70

~ <40

ND

Postca rds Ma iled

Water D istribution

-__r i,;r,:i.,· H.-.l'l'.1'51\IRli O~J".\IITl-1f .T C£

Environmental Services

" w-~- •~ r --y -

I '

•

7.1 18

Rye WaterDistrict Wells

CoakleyLandfill

Coakley Landfill

Woodknoll Dr

183

32.9

Grove Rd Landfill

152104

Breakfast Hill Landfill

74 68 82

3

Approximately 1 mile

COAKLEY AREA PFAS INVESTIGATION &

PRIVATE WELL SAMPLING PROGRAM

Private wells sampledsemiannually by CLG /NHDES

N. Hampton FD

PFAS INVESTIGATION Updated: June 5, 2018 PleaSE note that the data p<eSEnted is under constant revi -m as. new -sites or faci1ies are added. The data may not con - all -pota,tial or existr,g s es er facilities. NH!lES is not responsible for the- use •Dr interpretation of dis infonnation. Nol inta>de<I for "'9:>l fUPOSeS.

* Existing Remedial Site with PFAS Detections

Public Water Distribution

Wellhead Protection Area

Landfi ll

--- -- a,.., .... , - ...,,., .. � • ~400

• � • 70 - <400

40 - <70

h_ ~ <40

ND

Analytica l Result Pending

•--==---==--- Feel 0 2,600 5,200 10,400

1 in = 2,600 feet ..• ~ [

JI I

Map By: Derek Bermel! 271-8520 8

PFAS INVESTIGATION Updated: June 5, 2018 Please note that the data pra.sented is under ccnstant relrisioo as new ~ites or fa cities are added. The data may not oonta:O all 0G the potential or exismQ s es er facitities. NHDES is. not responsible for the use or intetpetation of this information. NOi: intended for legal pwposes..

* Existing Remedial Site with PFAS Detections

C:=J Political Boundary

Public Water Distrib ution

Wellhead Protection Area

Landfi ll

PFOA + PFOS -- ...-~ ex,,, ,,.,., "'~ ..,..,

• ... � • ~400

• ... � • 70- <400

� 40 - <70

0 ~ <40

ND

Analytica l Result Pending

•--==---==---• Fee 0 2,600 5,200 lD.400

1 in = 2,600 feet

Map By: Derek Bennett 271-8520

9

kl y n In rm n

-.r ::~~~~: Environmental

Services

Richard Hull U.S. EPA - New England, Region 1Tel. (617) 918-1882E-mail: Hull.Richard@epa.gov

Jim MurphyU.S. EPA - New England, Region 1Tel. (617) 918-1028E-mail: murphy.jim@epa.gov

Andrew Hoffman, P.E. NH Department of EnvironmentalServices Tel. (603) 271-6778E-mail: Andrew.Hoffman@des.nh.gov

10

Coakley Landfill Update

CLG Open House June 7, 2018

NEWHAMPSHIRE -,L" DEPARTMENT OF

Environmental ~~ Services

1

Coakley andfill Area

RYE

Grove Rd Landfill

Rye water tower

Site access Operable Unit 2

Operable Unit 1

2

0 1200'

L-- I NOTES:

1, Thi!:! fiAtJ l:!I ~~ED ~ 4-. PU~ 1-1 lHE AHIIL1il1UPt'.IP-1)nEt.1 "E)N!Rti~H'TJ.L WOh.lTM l'-lll NETV~ ~:TEl)ffl'T~ \OOWC:" ~:'.i!iQCl•'TE:i, lt)t: ,). " P~ ll'f n.: l'wfM ar.l.YENT, :wr;,:~wo\TER- ;\.J,U)~tJll t~l'tR u !;l',l f«;;mtN;; Pll(-l 11n£O -srre PLA' ,v.JilES. Et.-'(!l;!EER l'<IO., 1:-ie.~ A:iO e rrY CF PCRTBMOlfiH EU:i'.(El'ER, 8 !.OCATI B ~ SITE MONf:!"OOt-KJI POI ITS . .SlR ·ws ,1,sl)~"--ll.Tfll'::l.l!Pi-~Y'r 1.ux:Al~ h-$ OONniCMAr.t r ..c. F.fl l.:.J..f"HOTOG~ .-.~OTtff 4.ROJJ'f, RF.FERE~Cf!'i lll' F't>~. ~ TE FEIi TUIIE. LCG.11110 0.,:s "JO V.JiLE A.'.IE A??.q,;:ntlMATE.

�, t!o.OM rEPRCflE,,fNLl!iiliil H.:.SFDClN AfO~E>l:i:NllOhE!lf\ l~S, f'IICIPF.R1Jf. !I III CREEl'.U.J,r,Q(J t~8 KfA'ST l1 L1 Rll,:.D 9"8E1115\1N T-0'1.fi Of ~EEl'Ur,Kl il\X "'-AP Roi (D.i\TED.lPFi.l L 1. 2013),

:!J , G.'ill ~CMY IS flA5lDJJf'a"I •r.,~ ftl:l.fl™-1'.'r' F-'11.1<1-t 0.li~DMA'r' 9, XO~ l~r.Ll!M:tl t'~ THI! :>:ffl.a'.9' 1:i1-TIDN PREP-MU, UYNltNQOOKA~:iOCIATU MID.LOI J: GMZ DPll,.510.~ ltR£II. l:! :s.TMI L.1 5HEO DY Ttll:! ltll.J GM? CJiTCD.l".N:.IARY 7. ~ , .,,

GZ-109 -++- Gz.117

---

~ PC•7A

FPC-78

LEGEND ®

A L-1

+ ~\'ELL IJ + ~E t) .., s.11••:.

1.E:ACKt.TEBAWt. l'-ffll.OCJtTt:lH

OVER&:l:IDBtMOMTOOINB "ELL

BEDl!.OCK ',,1O'-f" li.1O 1/,

SU'=IFA'CE 'n1o'TE':! 8A-~PLI NG ~ "TIO!I'

UWIT9 Cf OROJMM.I.TER Mi.fulOEWENI A.tO.'Q.I REliiTi'IC.Tltfl zote

-••-•••••• 11 f"O, t!P:CI JIHIU,. 41,ppit,:;,xJ~.,:,r I

·-TO'I.NSHIP C

I I

//

.A9MF-.1:I II LlClllfCL'I.II

Coakley Landfill Site Plan

3

!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!·i!!!!!!!!!!!!!!·i!!!!!!!!!!!!!!·i!!!!!!!!!!!!!!·i!!!!!!!!!!!!!!

1972 - 1985

Waste & Incinerator Ash Received

1979 - 1983

Impacts to Private Wells Identified

1983

Listed on NPL

May 1989

FeasibilityStudy (FS) Issued

June 1990

Record of Decision

March 1991

ESD Issued Modifying Cap

Design

May 1992

CD Between US, NH andDefendants (OU1)

4

May 1994

FS for OU2

September 1994

ROD for OU2

1998

Landfill Capping Completed

January 1999

CD Between US, NH and Defendants (OU2)

September 1999

ESD Issued Eliminating P&T From

OU1 Remedy

5

September 2007

ESD OU2

2008

GMP Issued

August 2015

ESD OU1 and OU2 1,4 Dioxane addedas COC; GMZExpanded

May 2016

Drinking Water HAAdopted forPFOA, PFOS

Spring 2016

PFAS SamplingInitiated

October 2016

NH Adopts HA as AGQS for PFOA,

PFOS

6

USEPA Health Advisory (HA)

HAs established for PFOA and PFOS = 70 ppt in drinking water.

HAs provide information on contaminantsthat can cause human health effects and are known or anticipated to occur in drinkingwater.

EPA’s HA for PFOA and PFOS offers a marginof protection throughout a person’s life from adverse health effects resulting from exposure to PFOA and PFOS in drinkingwater.

7

II

r nn V 1 NEW HAMPSHIRE DEPAR1MENT OF

nmental Services

January 2017 EPA calculated risk-based ScreeningLevels (SLs) for incidental ingestion of surface water and sediment assuming exposure durationsof 120 (conservative) and 45 days/yr (realistic) forPFOA, PFOS and PFBS

November 2017 EPA calculated risk-based SLs for standard recreational fish consumption rates for a child for PFOA, PFOS and PFBS Most conservative exposure assumption for child

6,000 mg/day, 350 days/year, 6 years (about 74 ounces per year)

8

Overview of SLs for Recreational Ingestion of Surface Water, Sediment & Fish Tissue

Surface Water (ng/L) Sediment (mg/kg) Fish (mg/kg)

120 day/yr 45 day/yr 120 day/yr 45 day/yr 6 grams/day

760 2,030 0.369 0.98 0.00521

760,000 2,030,000 369 983 5.21

Risk-Based Screening Levels

Assumptions

PFOS/PFOA

PFBS

9

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.:!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ~ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ~ !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

January 2018

EPA Directs CLG to Conduct

Bedrock Investigation

February 2018

Chinburg Well Packer Testing

Results

February 2018

EPA Directs CLG to Sample Fish

Tissue

May 2018

Surface GeophysicsPerformed

Spring-Summer 2018

Fish Tissue Sampling

May 2018

Spring 2018 Semi-Annual Sampling

June 2018

Deep BedrockWell Installation

10

�

�

COAKLEY PHASE I DEEP BEDROCK EXPLORATION PLAN

·-- -- ~ -- ·· --~

T ''°""'

6!!:i:;-;.~litied ' Pr~Within otAd_Mlc:ent lolt1e

3. S'te1eatlnloenOM••e•~ma1e

LEOENO.

• OU-I monlloMg wd.

• OIJ.2 monilOl'ing ..,.1

R~li,1-A

• Manmlng-11.

·+ Groundlo·etermon4of1t1gw.l!

• WaU!1St4>plywtll

Coctkloyt...l'l<lftllet!oe

-- a,oo1c.

� 28

!f&r:=::~!~lr=J/:t:: faif:ps Hampton Wiler Worb Urie

178

163 188

152

155

252

174

184

99

190

200

184

Approximate location of new well couplets

Coakley Groundwater Management Zone (GMZ)

Chinburg Well

183

188

Bedrock well and depth (6 inchopen borehole) potentially viable for additional data collection.

Bedrock wells sampled by CLGfor Site contaminants.

11

NHDES & CLG Surface Water SamplingStations (approx.)

F&G stocking at Brackett Rd≈2500 yearling brown trout8-10 inches long in April

Upstream limitof tidal water

CoakleyLandfill

Sampler (date) PFOA (ppt)

PFOS (ppf)

CLF (12/19/16) 11.4 ND (8.15)

Rye Sagamore Rd (11/20/17)

10.2 ND

Rye Lang Rd (11/20/17) 12.5 ND

Proposed fish tissuesampling locations

kl y ndf1II nt Inf rm t1 n

www.epa.gov/

-.r ::~~~~: Environmental

~~ Services

Andrew Hoffman, P.E. Richard Hull NH Department of EnvironmentalU.S. EPA - New England, Region 1 Services Tel. (617) 918-1882 Tel. (603) 271-6778E-mail: Hull.Richard@epa.gov E-mail: Andrew.Hoffman@des.nh.gov

Jim MurphyU.S. EPA - New England, Region 1Tel. (617) 918-1028E-mail: murphy.jim@epa.gov

13