The 31.4-acre Chemical Leaman Tank Lines, Inc. (CLTL) Bridgeport Terminal is located approximately two miles south of the Delaware River in Logan Township, New Jersey. The property is an active terminal used for dispatching, storing, maintaining, and cleaning tanker trucks and trailers. It is bordered to the east and southeast by farmland and a forested wetland area known as Cedar Swamp. Moss Branch Creek drains portions of Cedar Swamp into Cooper Lake, located approximately 1,000 feet north of the CLTL terminal.

CLTL opened the facility in 1961 to wash and rinse tanker trucks used to transport chemical commodities, including some that are classified as hazardous in bulk quantities. Wastewater from the washing and rinsing operation was impounded in a series of seven unlined lagoons and subsequently discharged into the adjacent wetland. The lagoons were taken out of service in 1975 when CLTL was required to install a wastewater containment system at the terminal. In 1977, the sludge was removed from the primary settling lagoons and disposed of off-site, and the lagoons were backfilled with sand and construction debris. The aeration and final settling lagoons were drained, but no lagoon materials were removed prior to backfilling.

In 1980 and 1981, the New Jersey Department of Environmental Protection (NJDEP) found the groundwater on the site and neighboring private wells was contaminated with volatile organic compounds (VOCs). In 1982, CLTL removed sludge and contaminated soil from the former primary settling lagoons, and the excavation was backfilled with clean sand. Due to the contamination of soil, groundwater, and the adjacent wetlands, the U.S. Environmental Protection Agency (EPA) added the site to the Superfund Program’s National Priorities List (NPL) in September 1984. The remedial activities have been completed and the site is in the Operations and Maintenance (O&M) phase.