Edison, NJ - The U.S. Environmental Protection Agency (EPA) is conducting its 5th Five-Year Review of the KinBuc Landfill Superfund Site located in the Edison Township.   According to the EPA, this review will seek to confirm that the cleanup conducted at the site continues to be protective of public health and the environment, and is functioning as designed.

Kin-Buc Landfill is a 220-acre site  composed of an inactive landfill that operated from the late 1940s to 1976. From 1971 to 1976, the site was a State-approved landfill for industrial and municipal wastes, both solid and liquid. The State revoked its permit in 1976 due to the violation of several environmental statutes. It is one of 114 Superfund sites in New Jersey.

According to a 1995 report prepared by the New Jersey Department of Health, "the exact nature and quantity of the materials deposited at the Kin-Buc Landfill is not known, but the U.S. Environmental Protection Agency (USEPA) estimates that at least 70 million gallons of liquid waste and one million tons of solid waste were deposited between 1973 and 1976."

Sign Up for E-News

In a recent Public Notice issued by EPA, announcing the review, it stated that cleanup conducted at the site included: 1) the installation of a slurry wall and landfill cap for source control; 2) groundwater and leachate collection and treatment; 3) long-term groundwater and surface water monitoring; 4) the excavation of sediments with concentrations of polychlorinated biphenyls (PCBs) greater than 5 parts per million in the Edmonds Creek wetlands; and, 5) wetland restoration.

According to EPA, to date, approximately 25 million gallons of contaminated groundwater and leachate have been extracted from the landfill, treated, and discharged to the Raritan River. In addition, approximately 9,400 cubic yards of PCB-contaminated sediments were excavated from the wetlands adjacent to the site. 

"Edison Township appreciates and looks forward to the result of the EPA's latest five-year review of KinBuc Landfill,” said Mayor Thomas Lankey. “Our town – like most communities in New Jersey and across our nation – is far more environmentally conscious and aware today, than back in the 1970s. My Administration wants our Rartian River waterfront to be a safe, healthy environment for our residents who routinely enjoy it for passive recreation.”

The last EPA review was completed in July 2014.  The site remains on the National Priorities List.  The current five-year review is expected to be completed by the end of March 2019, and the results will be made available to the public, according to the EPA.

Editor's Note: This article was updated with a quote from Edison Mayor Thomas Lankey.