Combe Fill South Landfill
Parker Road
Chester & Washington Townships, Morris County
PI #: G000004005
BLOCK: 17 LOT: 7
BLOCK: 37 LOT: 15, 16 & 16.01
Community Relations Coordinator: Mark Herzberg (609) 633-1369
SITE DESCRIPTION/RESOLUTION OF ENVIRONMENTAL CONCERNS:
 As
of 28 June 2004
Combe Fill South Landfill operated as a municipal landfill from the 1940s
until 1981. During this time, the landfill was licensed to accept municipal
wastes, sewage sludge, chemicals and waste oils. After the landfill closed,
contamination was detected in leachate seeping from the sides of the landfill,
in shallow and deep on-site ground water monitor wells and in nearby Trout
Brook. In addition, several nearby private potable wells were determined
to be contaminated with volatile organic compounds at levels exceeding
New Jersey Drinking Water Standards. Point-of-Entry Treatment (POET) systems
were installed on the wells with funds provided by NJDEP to supply potable
water for the residents. USEPA added Combe Fill South Landfill to the
National Priorities List of Superfund sites (NPL) in 1983. NJDEP subsequently
conducted a Remedial Investigation and Feasibility Study (RI/FS) to delineate
the contamination at the site and evaluate remedial alternatives. In 1986,
after the RI/FS was completed, USEPA issued a Record of Decision (ROD)
with NJDEP concurrence that required capping of the landfill, venting
of the landfill gases, installation of an on-site remediation system to
extract and treat the contaminated ground water in the shallow aquifer,
and fencing of the site. The ROD also required installation of a public
water line to replace the contaminated private wells and those wells at
risk of becoming contaminated in the future, as wells as a supplemental
RI/FS to evaluate the contamination in the deep ground water aquifer after
initial treatment of the shallow aquifer. NJDEP’s Remedial Response Element
completed the landfill cap and the ground water remediation system in
1996. Installation of the water line was not implemented, however, because
ground water monitoring conducted after the ROD was issued showed little
impact to nearby private potable wells was likely. NJDEP plans to amend
the ROD to remove the water line requirement. NJDEP is maintaining the
POET systems and periodically sampling certain private wells in the area
to monitor potable water quality. NJDEP began the RI/FS to delineate the
contamination in the deeper aquifer in 2001, but these activities are
currently on hold while NJDEP negotiates an agreement with the Potentially
Responsible Parties that would obligate them to conduct the work. Operation
and maintenance (O&M) of the landfill cap and ground water remediation
system are ongoing.
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