Jeffersonville V Jefferson STP - Secondary Wastewater Treatment in Sullivan County, New York

Jeffersonville V Jefferson STP is a municipal wastewater treatment facility located in Sullivan County, New York, within the Town of Delaware. The plant serves a small population of 610 residents, providing essential sanitation services for this rural community in the Catskill region. The facility operates with secondary treatment, which is the standard level required under the US Clean Water Act for municipal plants. Its designed capacity is 454.25 cubic meters per day, with a current discharge volume of 264.98 cubic meters per day, indicating operational headroom. As a US facility, it operates under an EPA NPDES permit issued by the New York State Department of Environmental Conservation, ensuring compliance with discharge limits. The plant's treated effluent enters local streams that drain into the Delaware River basin, a major waterway supplying drinking water to millions in New York City and Philadelphia. The Delaware River supports diverse aquatic life, including migratory fish species, and is a critical ecological corridor in the northeastern United States.

The plant discharges into small tributaries of the Delaware River, which flows through the Catskill Mountains and ultimately into Delaware Bay. This watershed is ecologically sensitive, supporting coldwater fisheries and providing habitat for species such as brook trout and American eel. The river's health is vital for downstream communities and ecosystems.