HORSESHOE

NEW JERSEY

EPA ID# NJD980663678

Site Description

The Horseshoe Road site is a 10-acre property located in Sayreville, New Jersey, near the Raritan
River. The former chemical processing site includes three areas: (1) the Horseshoe Road Drum
Dump; (2) the former Atlantic Development Corporation facility; and (3) the Sayreville Pesticide
Dump. These three areas have been grouped together as one site on the National Priorities List
(NPL) based on their close proximity, and the assumption that the contaminants are commingled and
threatening the same resources. The former Atlantic Resources Corporation site is also located on
Horseshoe Road but is not part of the Horseshoe Road NPL site; however, portions of the Atlantic
Resources site were included in the site remedial investigation. The area around the site includes
residential properties, and contains business, commercial, and industrial areas as well. About 63
residential properties are located within Vi mile of the site, and about 14,000 people obtain drinking
water from public wells within 4 miles of the site.

The Site first came to EPA's attention in 1981, when a brush fire at the Horseshoe Road Drum Dump
exposed approximately 70 partially filled drums containing acetonitrile, silver cyanide and ethyl
acetate. The Horseshoe Road Drum Dump was used for disposal from 1972 into the early 1980s.
The Sayreville Pesticide Dump was also used for disposal, from about 1957 into the early 1980s.

The Atlantic Development Corporation facility contained three buildings that were owned or leased
by many companies during the years of operation. Historical aerial photography indicates that the
area was developed in the early 1950s and operated into the early 1980s. The operations included the
production of roofing materials (coal tar and asbestos), sealants, polymers, urethane and epoxy resins,
resin pigments, wetting agents, pesticide intermediates and recycled chlorinated solvents.

Site Responsibility: The site is being addressed through Federal

and State actions.

ROAD

EPA REGION 2

CONGRESSIONAL DIST 6

Middlesex County
Sayreville

NPL LISTING HISTORY

Proposed Date: 05/10/93
Listing Date: 09/29/95

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Threats and Contaminants

|	In 1989, the EPA analyzed the site soils and found that the soils contained volatile organic

/ \ compounds (VOCs), semi-VOCs, base-neutral compounds, heavy metals, pesticides, and
polychlorinated biphenyls (PCBs). The sediments and surface water on-site are
contaminated with VOCs, heavy metals and pesticides.

The site contains wetland areas, and there are additional off-site wetlands that have been
impacted by site contaminants. People who come in contact with or ingest contaminated
soils, or sediments may face a health risk.

Cleanup Approach 	

This site is being addressed in several stages: initial actions and long-term remedial phases focusing
on a cleanup of the entire site.

Response Action Status 	

^ Initial Actions: In 1985, at the request of the New Jersey Department of

Environmental Protection (NJDEP), EPA used Superfund emergency funds, to relocate
corroded drums from the Horseshoe Road Drum Dump to a fenced area at Atlantic
Development. Shortly thereafter, NJDEP removed more than 1,000 drums from the Atlantic
Development Area. In October 1991, EPA performed a removal action at the Atlantic Development
Area to remove hazardous materials in and around the buildings. In October of 1992, EPA initiated
two additional actions, one at the Horseshoe Road Drum Dump and the other at Sayreville Pesticide
Dump, to remove the hazardous materials known to be buried there. The removal action at the
Horseshoe Road Drum Dump was completed in July of 1993, and the Sayreville Pesticide Dump
removal action was completed in December of 1994. In 1996, EPA performed a removal assessment
of the entire site to determine if any remaining contaminant sources could be addressed by a removal
action, and to further define contamination at the site for the remedial investigation. In 1999, EPA
performed another removal that posted warning signs and removed surface debris throughout the site.

Entire Site: In July 1997, EPA initiated a remedial investigation to determine the
nature and extent of contamination remaining at the site. The final remedial investigation
report was submitted in May 1999, and the Baseline Human Health Risk Assessment was
completed in October 1999. Based on these documents, EPA determined that some additional data was
needed to determine the extent of the site's impacts to the marsh and river. In addition, EPA determined
that removing the buildings was a necessary first step toward addressing the site. In September 1999, a
Focused Feasibility Study was completed, and a Proposed Plan that recommended demolishing the
buildings was presented to the public in December of that year. EPA issued a Record of Decision in
September 2000. The demolition of the buildings on the Atlantic Development property was

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completed in April 2001. A Proposed Plan to address the site soils and ground water (Operable Unit
2), is planned for the Summer of 2002.

Site Facts: On September 29, 1995, the site was placed on the National Priorities List. Based
upon the results of the EPA's remedial investigation the neighboring Atlantic Resources site was
proposed as a separate NPL site an September 25, 2001. The two sites have been addressed jointly
by EPA due to their close proximity.

To date, the potentially responsible parties (PRPs) have either declined to perform any of the work
required at the site, or have been financially incapable of doing so; therefore, this work has been
conducted using Federal funds.

(Threat Mitigated by Physical Cleanup Work)	

EPA and NJDEP have stabilized the site by removing more than 3,000 drums (found buried and on
the surface), emptied and disposed of materials found in numerous tanks and vats throughout the site,
and excavated and disposed of contaminated soils and debris. EPA has demolished the buildings and
other on-site structures. Building materials and other surface debris were disposed of as part of the
first phase of the Site cleanup. Final remedies for the second and third phases will address site soils,
ground-water, and sediments in the marsh and river.

Cleanup Progress

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