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

In 2021, NJDEP approved a Facility Closure Work Plan to permanently close the Facility in place. Under this work plan, a portion of the material within the Impoundment was redistributed and regraded to lower the profile, improve aesthetics and allow for stormwater management. A final impermeable cover system, consisting of heavy-duty leak-proof liners, clean soil and grass vegetation was installed to permanently cover and hold this material in place.

On May 19, 2023, NJDEP approved the Final Construction Completion Report for the Impoundment 8 Facility Closure. A copy of the final report and approval letter is provided here (248MB .pdf).

The Facility will continue to be maintained and monitored long term under a NJDEP RCRA permit.