Impoundment 8

The Impoundment 8 Facility, located on Polhemus Lane in Bridgewater, was designed to receive material exclusively from other areas of the Site as part of a multi-phase remediation program. This surface impoundment is regulated under the Resource Conservation and Recovery Act (RCRA), as opposed to other areas of the Site which are regulated under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) program, commonly known as Superfund. Work at this impoundment is performed with oversight by the New Jersey Department of Environmental Protection (NJDEP).

Impoundment 8 Facility Closure Plan

The Impoundment 8 Facility was constructed as a double-lined surface impoundment divided into four separate cells, each of which are currently idle. The Impoundment 8 Facility features a composite liner system, including leachate collection and leak detection systems, and geomembrane covers to prevent stormwater infiltration.

Approximately 40% of the Impoundment 8 Facility has been used to receive treated materials remediated during earlier remedial actions, with the remaining capacity unused. In 2018, the United States Environmental Protection Agency (USEPA) issued the final Record of Decision necessary to address impacted soil, groundwater and surface impoundments at the Site. Based upon USEPA’s selected remedies, the Impoundment 8 Facility will not receive any more treated material. Therefore, Wyeth Holdings LLC (WH) is moving forward with plans to implement a final closure and post-closure care plan in accordance with RCRA regulations.

The NJDEP is currently reviewing the Impoundment 8 Facility Closure Remedial Action Work Plan (RAWP). Following their review, the RAWP will go through a public notice process. Once the RAWP has been approved, WH will proceed with the closure of the Impoundment 8 Facility. Final Closure construction work is expected to begin in the Fall 2020 and continue for several months.