Record of Decision System (RODS)
YORK COUNTY SOLID WASTE AND REFUSE AUTHORITY LANDFILL
|Site Name:||YORK COUNTY SOLID WASTE AND REFUSE AUTHORITY LANDFILL|
|Address:||ROAD #3 - BOX 426|
|City & State:||HOPEWELL TOWNSHIP PA 17363|
|NPL Status:||Deleted from the Final NPL|
|ROD Type:||Record of Decision|
|Media:||Groundwater, drinking water|
Please note that the text in this document summarizes the Record of Decision for the purposes of facilitating searching and retrieving key text on the ROD. It is not the officially approved abstract drafted by the EPA Regional offices. Once EPA Headquarters receives the official abstract, this text will be replaced.
The York County Solid Waste Landfill Superfund Site which consists of three inactive/unlined portions (former landfill), and the plume of contamination that emanates from them. The adjacent operating, permitted municipal solid waste landfill which consists of three line cells, both active and inactive, is not part of the Site.
The former landfill is approximately two miles northwest of the center of Stewartstown Borough, Pennsylvania, and about three and a half miles east of the Shrewsbury interchange of High I-83 in Hopewell Township, York County, Pennsylvania. The former landfill is approximately 135 acres in area and contains unlined cells that were used to dispose of municipal solid waste. The landfill was operational between 1974 and 1985, and was filled by trench and area fill techniques in accordance with the Pennsylvania Department of Environmental Resources (PADER).
The former landfill is bounded on the south by Plank Road and is traversed by Althouse School Road and is surrounded by both residential and agricultural areas.
Adjacent to the former landfill is a currently operating landfill which is approximately 45 acres in area. This active landfill is equipped with liners and a leachate collection system and is operating in accordance with the modification to PADER Permit No. 100962, issued on February 15, 1985.
There are approximately 300 people living within a one-mile radius of the former landfill, with the closest residence less than 1,000 feet. Groundwater is the only source of potable water in the area for nearby residences. Residents near the former landfill are dependent on private wells. Private residences which have domestic wells, are located adjacent to the former landfill. Those residences that are impacted from Site contamination have been equipped with a whole-house point of entry filtration system and/or bottled water. EPA has classified this aquifer as a Class IIA aquifer, a current source of drinking water, in accordance with the EPA document Guidelines for Groundwater Classification.
Surface drainage from the former landfill flows into three different surface watersheds. Water from the northwest portion of the landfill eventually drains into Cordorus Creek, the northeast portion drains into Muddy Creek, and, the southern portion drains into Deer Creek. All eventually flow into the Susquehana River. Beside surface drainage, several storm water detention basins are on the former landfill. Wetlands have been identified adjacent to the former landfill.
There are no known endangered species or critical habitats within the immediate vicinity of the former landfill.
The York County Solid Waste and Refuse Authority ("YCSWRA") was established in December 1971. Construction began during the summer of 1974. YCSWRA owns and previously operated the Site as a municipal landfill since 1974 under a PADER Solid Waste Permit.
The inactive municipal landfill was divided into units or cells. Municipal solid waste and non-hazardous commercial waste were disposed in these unlined cells. The unlined cells-Phase I, II, IIIA are approximately 135 acres in area. The former landfill was permitted to accept municipal waste and received approximately 400 tons of such waste daily. The acceptance of wastes at the former landfill halted in 1985, and it was closed in accordance with the PADER approved landfill Closure Plan.
Prior to the establishment of the municipal landfill, the land consisted of seven individual land parcels which were privately owned. Preconstruction land use and development within and contiguous to the former landfill was primarily agricultural, consisting of farms and widely-spaced single-family residential structures. The most intense development in proximity to the former landfill was a 33-unit mobile home park, which was subsequently acquired by the YCSWRA in 1986, and abandoned and removed; and a strip of seven single-family dwellings located southeast of the former landfill along Plank Road.
The selected remedy for the Site will restore contaminated groundwater to its beneficial use by treating the contaminated groundwater to background levels as established by PADER, or to Maximum Contaminant Levels ("MCLs") established under the Federal Safe Drinking Water Act ("SDWA"), whichever is more stringent. The remedy will also protect the public from exposure to contaminated groundwater. The selected remedy as described below is the only planned CERCLA response action for the Site.
The selected remedy includes many different components. Operation of the currently existing groundwater extraction and air stripper treatment system at the landfill will be continued. Continued operation and maintenance of the Point of Entry ("POE") groundwater carbon filter treatment systems and/or provisions for bottled water for affected private wells as necessary, maintenance of the landfill's soil and vegetated cap and the passive landfill gas venting system currently in place at the landfill, and continued periodic sampling of groundwater and treated water to ensure that treatment components are effective and groundwater remediation is progressing towards the required cleanup levels will occur.
A monitoring program to assess the effectiveness of the groundwater treatment system and its impact (e.g., dewatering) on downgradient surface water and wetland habitat and a monitoring program to assess the impact of the treated effluent discharge on the environmental quality of surface waters and sediments in the streams where the outfalls are located will be implemented.
Deed Restrictions will be activated which will prohibit the installation of new onzsite wells in areas of contamination which do not meet applicable or relevant and appropriate requirements ("ARARs"). These restrictions can be withdrawn when ARARs are achieved. Deed Restrictions will also prohibit the excavation or disturbance of the soil cap which results in exposing the fill materials for reasons other than studying the landfill mining option.
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