Marlborough T Marlboro STP - Secondary Wastewater Treatment Plant in Marlboro, New York

Marlborough T Marlboro STP is a municipal wastewater treatment facility located in Marlboro, Ulster County, New York. The plant serves a small population of 850 residents and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard level that removes biodegradable organic matter and suspended solids. With a designed capacity of 662.45 thousand gallons per day and an average discharge volume of 355.83 thousand gallons per day, the facility operates well within its capacity, ensuring reliable treatment for the community. Treated effluent from the plant is discharged into the Hudson River, a major waterway that flows south to New York Harbor and the Atlantic Ocean. The Hudson River supports diverse aquatic life and serves as a critical migratory corridor for fish species. The plant's discharge is regulated under the National Pollutant Discharge Elimination System (NPDES) to protect water quality in this ecologically significant river.

The plant discharges into the Hudson River, which flows approximately 315 miles from the Adirondack Mountains to New York Harbor and the Atlantic Ocean. The Hudson River estuary supports diverse aquatic life, including striped bass, American shad, and Atlantic sturgeon, and serves as an important migratory corridor. The watershed encompasses forests, agricultural lands, and urban areas, with water quality influenced by both point sources like this plant and non-point runoff.