Washington Township MUA Long Valley CS_STP - Secondary Treatment Plant in New Jersey

The Washington Township MUA Long Valley CS_STP is a municipal wastewater treatment facility located in Washington Township, Morris County, New Jersey. It serves a population of approximately 7,030 residents in the Long Valley area, operating as part of the Washington Township Municipal Utilities Authority. The plant is situated near the Columbia Trail and provides essential wastewater treatment for the community. The facility employs secondary treatment processes, which is the standard level required by the US Clean Water Act for municipal plants of this scale. With a designed capacity of 923.64 million gallons per year and an actual discharge volume of 681.37 million gallons per year, the plant operates below its capacity, indicating room for future growth. As a US facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New Jersey Department of Environmental Protection, ensuring compliance with water quality standards. The treated effluent is discharged into local waterways that ultimately drain into the Raritan River basin and then to the Atlantic Ocean. The plant plays a key role in protecting the region's water quality, particularly the South Branch of the Raritan River, which supports diverse aquatic life and provides recreational opportunities. Its operation helps maintain the ecological health of the watershed and downstream environments.

The plant discharges into the South Branch of the Raritan River, which flows into the Raritan River and eventually reaches Raritan Bay and the Atlantic Ocean. This watershed supports a variety of fish species, including trout, and provides habitat for migratory birds. The plant's secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in this ecologically sensitive region.