The Cinnaminson Groundwater Contamination Superfund Site spans 400 acres and straddles the border of Cinnaminson and Delran in Burlington County. “Superfund sites,” such as this one, are designated by the US Environmental Protection Agency (EPA) based on their actual or potential release of hazardous waste into the environment. Superfund sites are also remediated under the oversight of the EPA due to their complex and extensive levels of contamination.

The NJ Department of Environmental Protection discovered contamination at the Cinnaminson Site in the early 1980s as part of routine data collection during the closure of two landfills that previously operated on the Site. The Site includes the two closed Sanitary Landfill, Inc. Landfills, residential properties, and various light to heavy industrial properties. Extensive contamination was present in the groundwater, soil, and soil vapor upon discovery.

The Cinnaminson Site, as with many other Superfund sites, was divided into “operable units” in order to make investigation and remediation more manageable. These units are separated by location and the type of contamination being targeted. On July 1, 2021, the EPA released a Record of Decision for the fourth and final unit of the remediation at the Cinnaminson Site. The Record of Decision details the remediation plans for this fourth unit, which focuses on groundwater remediation at two specific, highly concentrated properties.

You can read more about the Cinnaminson Superfund Site here: https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0200995#bkground

Find the July 1 EPA press release announcing the Record of Decision here: https://www.epa.gov/newsreleases/epa-finalizes-cleanup-plan-address-groundwater-contamination-townships-cinnaminson-and