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The Price Landfill site is located in Egg Harbor Township, New Jersey. The 26-acre area originally was a sand and gravel excavation operation that closed in 1968. Beginning in 1971, Price Landfill began to accept a combination of both drummed and bulk liquid wastes. Wastes included industrial chemicals, sludges, oil, grease, septic tank and sewer wastes. Tank trucks emptied bulk waste into the pit. Others dumped drums; some of these drums were punctured. Chemical waste disposal ended in late 1972, sludge disposal ended in the spring of 1973 and municipal waste disposal ended in 1976. It is estimated that over 9 million gallons of chemical waste were disposed of at the site during landfill operations. As a result, soil and groundwater in the area are contaminated. Following immediate actions to protect human health and the environment, EPA and the State of New Jersey put the site’s long-term remedy in place. Groundwater treatment and monitoring are ongoing. Under current conditions at the site, groundwater migration and human exposures are under control.
What Has Been Done to Clean Up the Site?
Immediate Actions: EPA provided bottled water to affected residences. In 1981, 37 affected residences were connected to the New Jersey Water Company (NJWC) public water supply system. To make sure the contaminant plume would not reach the Atlantic City Municipal Utilities Authority (ACMUA) public water supply well field, EPA and the State of New Jersey constructed an interconnection with the NJWC system, redeveloped three ACMUA production wells, installed granular activated carbon filtration units and implemented a water conservation program.
Wells/Plume Management/Source Control: In 1983, EPA issued a Record of Decision (ROD) providing for the replacement and relocation of the ACMUA water supply well field. From 1983 to 1985, the State of New Jersey replaced and relocated the ACMUA water supply well field and transmission facilities and conducted additional analysis of the plume management, source control and treatment alternatives.
Entire Site: In the site’s 1986 ROD, EPA selected the following cleanup actions: (1) installation of a security fence; (2) installation of groundwater extraction wells next to the landfill to control the contaminant source; (3) installation of groundwater extraction wells downgradient from the landfill to stop the migration of the contaminant plume; (4) construction of a groundwater and leachate pretreatment facility at or near the site; (5) construction of a force main to the ACMUA interceptor system; (6) extraction of contaminated groundwater, followed by pretreatment and conveyance to the ACMUA wastewater facility for final treatment; (7) quarterly monitoring of groundwater for about 25 years; and (8) construction of a landfill cap after groundwater remediation.
EPA fenced the site to prevent public access to the contamination. EPA installed a treatment plant and extraction system to prevent the migration of the contaminated groundwater to nearby creeks and to treat contaminated groundwater.
What Is the Current Site Status?
The site is being addressed in three stages: immediate actions and two long-term remedial phases focused on wells/plume management/source control and cleanup of the entire site.
In 1981, EPA provided drinking water from tank trucks to the affected residences. Thirty-seven residences were connected to the New Jersey Water Company (NJWC) potable water system. In addition, EPA and the state interconnected the ACMUA and the NJWC potable water systems. EPA redeveloped three ACMUA production wells, and installed granular activated carbon filtration units to treat any contaminated water.
In March 1999, NJDEP completed an interim remedial design for a pilot plant to evaluate the treatment and discharge of the treated groundwater into the aquifer. The pilot plant was completed in February 2001. The pilot plant operated at the site until December 2011.
Design of the groundwater treatment system component of the remedy was completed in 2010. The groundwater treatment system construction is expected to be completed in late 2012. The remedial design for the landfill cap was completed in 2011. Construction of the landfill cap is expected to commence in 2013 subsequent to the start-up of the groundwater treatment system and be completed in 2014.
EPA continues to monitor the groundwater four times a year. When the cleanup of the site is complete, a landfill cap will be placed over the site. Under current conditions at the site, groundwater migration and human exposures are under control.