Congressional District # 03
SANITARY LANDFILL CO. (INDUSTRIAL WASTE DISPOSAL CO., INC.)EPA ID# OHD093895787
Last Updated: October, 2011
The 36-acre Cardington Road Landfill Site (also known as the Sanitary Landfill Superfund Site) is a former solid waste landfill located approximately one mile south of the City of Dayton, Ohio. The closest residence is located less than 150 feet from the site. About 125,000 people draw drinking water from wells located within 3 miles of the site. The site was originally developed as a sand and gravel mine, and subsequently used for solid waste disposal from 1958 until 1980. The landfill accepted municipal wastes and various types of industrial wastes including solvents.
Throughout the 1950s and 1960s, the Cardington Road Landfill (a.k.a. Sanitary Landfill and Industrial Waste Disposal Co., Inc. ) was primarily used for sand and gravel mining, although limited waste disposal may have occurred during mining operations. Beginning in 1971, the site was operated as a solid waste disposal facility, and the excavated sand and gravel pits were filled with commercial, industrial, and municipal waste. In 1980, after waste disposal activities ended, the site was covered with soil ranging in thickness from two to eight feet. In 1987, the U.S. Environmental Protection Agency (U.S. EPA) and the State of Ohio conducted a Remedial Investigation (RI). The primary contaminants of concern affecting the soil, sediment, surface water, and landfill gas were identified as volatile organic compounds (VOCs), including benzene, trichloroethylene (TCE), toluene, xylenes, and other organic compounds. Metals, including arsenic, chromium, and lead, were also identified as contaminants of concern.
U.S. EPA placed the site on the National Priorities List (NPL) on June 10, 1986.
Site ResponsibilityThis site is being addressed through federal, state, and potentially responsible parties' actions.
Threats and ContaminantsGroundwater is contaminated with solvents and heavy metals including chromium, copper, cadmium, and lead. The soil contains solvents and the heavy metals chromium, copper, cadmium, and lead. Prior to the initiation of cleanup work at the site, potential health risks to people included accidentally ingesting or coming into direct contact with contaminated soil and ingesting onsite groundwater. These potential risks have been addressed by the cleanup activities implemented at the site.
U.S. EPA, the State of Ohio, and several of the Settling Defendants, known as the Cardington Road Coalition (CRC), entered into a three-party Administrative Order by Consent (AOC) which became effective on December 16, 1987. Pursuant to the AOC, the CRC performed a Remedial Investigation/Feasibility Study (RI/FS) for the site. The RI was completed on January 10, 1992, and the FS was completed on November 12, 1992. U.S. EPA selected a final cleanup remedy for the site which was documented in a Record of Decision, signed on September 27, 1993.
The components of the remedy included a solid waste landfill cap, on-site subsurface gas controls, surface run-off controls, long-term monitoring, institutional controls, and a supplemental site investigation to determine if a ground water extraction/treatment system was necessary. A Consent Decree between U.S. EPA and the Cardington Road Coalition (CRC) was entered by the court on August 12, 1996. This Consent Decree outlined the requirements for the CRC to perform the Remedial Design/Remedial Action (RD/RA) for the Site. The RD was completed on April 16, 1996. As a result of the supplemental investigation performed during the RD, it was determined that groundwater extraction and treatment was not necessary at the site.
The RA was initiated in the summer of 1997. During installation of landfill gas monitoring probes east of the site, a previously unidentified waste area was discovered and high levels of methane were found in investigative bore holes. Gas monitors were placed in nearby businesses as a precautionary measure. The landfill gas system was extended to include the waste areas found in this area near the site. U.S. EPA and the Ohio EPA conducted a pre-final inspection on September 17, 1998, which concluded that all construction was completed. The CRC continues operation and maintenance activities at the site, with oversight by U.S. EPA and the State of Ohio.
U.S. EPA completed the first five-year review for the site on September 25, 2002, and found the remedy was operating as designed. U.S. EPA completed its second five-year review on September 25, 2007. This review concluded that the remedy remains protective of human health and the environment. The implemented remedy eliminates the potential risks posed by the site by collecting and destroying the landfill gases, preventing direct contact with landfill waste, and reducing infiltration of water into the waste, thus preventing the formation of leachate at the site. Long-term protectiveness requires compliance with effective institutional controls. Compliance with effective institutional controls will be ensured by implementing, maintaining, and monitoring effective institutional controls, as well as maintaining the site's remedy components.
The first round of long-term groundwater sampling was performed at the site in August 2011. The CRC is compiling a report of the monitoring well sampling event. The results will be available at the site’s Information Repository when the report is finalized.
ContactsRemedial Project Manager, U.S. EPA
linda kern (email@example.com)
Community Involvement Coordinator, U.S. EPA
AliasesCARDINGTON ROAD LANDFILL
CARDINGTON ROAD LDFL AKA SANITARY LDFL
SANITARY LANDFILL CO. (INDUSTRIAL WASTE)
SANITARY LDFL CO
SANITARY LDFL CO IND WASTE