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J f KE,.,.(OY fEO(AAL IIJilOINC., IOS~ON MASS•CHUS(TTS Q2203

May 15, 1987

Ms. Sharon Christopherson NOAA Coastal Resource Coordinator u .s. Environl':'lental Protection Age ncy

Waste Management Division

JFK Federal Building

Boston, HA 02203

RE: Dover Municipal Landfill Site, Dover, NH

(hereinafter •site•)

Dear Ms. Olristopheraon:

The United States Environmental Protection Agency (EPA) has documented the release or threatened release of hazardous substances, pollutants or contaminants at the above referenced Site .

sections l04(b-c), 12l(j), 126 and other sections of the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA), 42 u.s.c. S9601 et. !!.i·• as amended by the Superfund Amendments and Reauthoriimon Act of 1986 (SARA), P.L. 99-499, 100 Stat. 1613 (October 17, 1986) cladfy and define resource trustees. Specifically, those sections· of CERCLA require EPA to notify the appropriate trustee of potential natural resource damages emanating from a release or threatened release of hazard.oue substances, pollutants or contaminants and to coordinate with that trustee in assessments, investigations, planning and negotiations in reference to the release.

Pursuant to section(&) Sl04(b)(2) and Sl2l(f)(l)(F), EPA hereby notifies you of potential damages to natural resources under your

. jurisdiction resulting from a release under investigation at the Site. EPA seeks to coordinate the investigation of the Site and possible negotiations with you.

Attached you vill find a list of contacts and information pertaining to the Site. Please review this information and contact Paul Marchessault, Remedial Project Manager for the Site at (617) 565-3650 as soon as possible. This will provide EPA with the maximum benefit of your expertise and unique perspective.

/ ,

Merrill s. Hohman, Director Waste Hanagement Divi s i on

Attachment

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Tr.USTEE NOTIFICATIOtl FOrJI

1. Si te Identification

Dover !lunicipal Landfill Toland Road cover, New Hampshire CERCLI S tNHO 980520191

2. EPA Contacts

Te chnical : Paul N. Marchessault (617) 565-3650

FTS 835-3650

Legal: Unassigned

3. Site Description and History

The Dover Municipal Landfill is a 55-acre waste disposal area located in the southwest corner of Dover, New Haf:1)shire at the inters.ection of the Dover, Barrington and Madbury town lines. The location of the landfill is shown on the attached map .

The landfill is about one-half mile south of the Dover City production well (Caldervood) which ie located in an area called •The Hoppers, • approximately 500 feet west of the Cocheco River and about one-third of a mile north of llallego Brook and the Bellar.~y (Portsmouth) Reservoir. Wetlands southwest of the landfill separate it from the reservoir. The landfill is bordered by Toland Road and Green Hill Road on the north, by Tolend Road on the east and by private property on the southeast and south. zcThe western portion of the site borders both the HadbJry-oover line and private property. The east -point of the landfill site is at the intersection of Tolend Road and Rochester Neck Road. The site is contained in a rural setting except that the land along the east side of Tolend-Rochester Roads has been subdivided for building lots. Up to 17 shallow wells have been dug across To lend Road from the landfill-some within 100 feet of the site. These wells are no longer used as domestic water supplies since 8 municipal water was extended to service the residences in the'· Ularea. The landfill is generally flat but has a ridge running north/south. At this ridge, surface wate r is divided easterly toward Cocheco River and west and southerly toward Bellamy Reservoir. A firebreak ditch exists along the entire perimeter of the site. Recently, this firebr eak ditch has been graded east to channel surface flOIIo' and high groundwater fror:1 the base of the landfill under Tolend Road to the Cocheco River. Access to this site is from Tolend

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Road. The City of Dover managed the operation and maintenance of the landfill during its active pedod of 1954 to 1976 and still retains ownership.

Landfilling began in 1954 on the eastern portion of the site and expanded to the northwestern and southwestern portion in the late 1950s and early 1960s. The landfill was operated as a trench-type landfill until June 1962, when due to high groundwater, the operation was converted to an area method. The City of Dover and the Town of Madbury contributed domestic and industrial refuse. Some specific wastes included leather tanning wastes, organic solvents, municipal trash and sludge from the Dover uastewater Treatment Plant.

In 1976 Geraghty and rHller, Inc. conducted a general assessment of the landfill and ita potential impact on groundwater quality. Additional monitoring was conducted jointly by the City of Dover and the t~ew Hampshire Department of Environmental Services (NH DES) beginning March 1977. Organic solvents were found to be entering the groundwater at that time.

In September 1977 the state ordered an end to disposal of organic solvents in the landfill. However, •hazardous Mterials• combined vith demolition materials were still being deposited as late as narch 19 78. The landfill vas closed in 1979 vith final closure (cover and filling) operations completed in May 1980 .

Folloving the closure, the monitoring program vas expanded to include several residential vella . Laboratory analyses of vater samples collected from residential wells located on Tolend Road and Glen Hill Road revealed that some of the vella wre cont•inated primarily vith volatile organic compounds.

In consideration of public health concerns associated vith the existing and potential contamination of both public and private water supply sources, the Dover Municipal Landfill is currently ranked on the US EPA National Priority List.

In accordance with the requirements of the National Contingency Plan, a Remedial Action Master Plan (RAfiP) was prepared for the site in 1983. The RAUP included a recommended scope of services for remedial action planning activities at the site , including a Remedial Investigation/Feasibility Study.

In order to proceed with the Remedial Investigation/Feasibility Study of the Dover Hunicipal Landfill, the State of New Har:1pshire Department of Environmental Services (Nil DES) executed a cooperative tive agreement with the US EPA. This agreer.\ent enables the US EPA to appropriate funds in accordance with the Comprehensive Environmental Response, Compensation and Liabillity Act of 1980 for Remedial Investigation/Feasibility Study activities. In October 1984 the

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State of New uampshire entered into an engineering services agreement with Wehran Engineering for the Remedial Investigation/Feasibility Study of the Dover ftunicipal Li!!indf ill. The Draft Remedial Investigation/Feasibility study will be completed by June 1987.

4. Response Category

Federal Enforcement Lead Federal Fund Lead (Cooperative Agreement)

State Enforcement Lead

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Unclassified Pederal Facility

S. Current Status of Site

Proposed or Listed on NPL Record of Decision .1-1 1=1 RI/FS ~rk Plan RD/RAI-I1=1 RI/FSI-;/

6. Actual or Anticipated Date of ROD

It 1a anticipated the ROO will be issued late 1988 or early 1989 .

1. Lht operable unite

N/A (Entire Site RI/FS)

8 . On-Going or Planned Negotiations

Some of the responsible parties have expressed an interest in performing the Feasibility Study themselves. However, no formal neootiations have occurred as of yet.

9. Request for a Covenant Not to Sue for National Resource Damages

N/A at the time

10. Schedule for Coordination of Planned or on-Going Investigations

The Draft Remedial Investigation is scheduled to be submitted in June 1987.

\,.,) tl/A - Not Applicable

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GUIDE TD TRUSTEE SELECTh•.•

How does a Project Manager Identify which natural resource trustees to coordinate with on a site? Below Is a simple exercise to help the Project Manager. For each or the chOices below, place a chec~ If contamination at your site has damaged, or has the potential ror damaging the habitat or biota described:

001 Natural Resource Trustee

Fish and Wildlife Service

II wetlands, streams, rivers or ponds

• wildlife lncluellng fish, Invertebrates, birds and mammals 0 terrestrial or Inland endangered species 0 national wildlife refuge lands

National Park Service

0 national park lands and historic sites

Blr'eau of Indian Affairs

o Indian tribal lands

DOC Natpl Reaoucc;c Tmtcc

0 coastal environments lncluellng saltmarst>es, tide flats, estuaries or other tidal wetlands

& rivers or tributaries to rivers which historically or presently SI.IPPOI't anadromous fish

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NOTE 2.

,.. ;)t'l •c~ u• •• •diJ::t ::tlww uty we anaoromou5 11sr. streams Tor tne statt~ 'Malnt, Ntw Hampshlrt, Massact ~tts, Rhode Island

ano Co"' 'ectlcut are available at tht NOAA CRC's desk. Rtductd

ztroxtd copies or thtst maps havt betn distributed to tht

Geogral)hlcal Sect ton Chiefs.

Thtre are presently no National Marine Sanctuaries designated

In Rtgton One. Tht two Estuarlnt Rtsearch Rtservts prtstntly

locattd In Rtgton Ont art ltstt d btlow. Thtre locations art

marked on tht appropriate NOAA Nautical Charts and many

State maps. For asststanct contact tht NOAA CRC.

Well Estuarine Restarch Rtstrve