Margaretville V STP NYCDEP - Advanced Wastewater Treatment in the Catskills, New York

Margaretville V STP NYCDEP is a municipal wastewater treatment facility located in the Village of Margaretville, Delaware County, New York. The plant serves a small population of 950 residents and operates under the regulatory framework of the New York City Department of Environmental Protection (NYCDEP). It is situated in the Catskill Mountains region, an area known for its sensitive watersheds that supply drinking water to New York City. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the US Clean Water Act. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) and additional filtration or disinfection. The designed capacity is 1,514.16 cubic meters per day, with an actual discharge volume of 548.89 cubic meters per day, indicating the plant operates well below its capacity. The treated effluent is discharged into a local waterway that feeds into the Delaware River Basin, a critical water source for the northeastern United States. The plant's advanced treatment helps protect downstream ecosystems, including the Delaware River and its tributaries, which support diverse aquatic life and provide habitat for migratory fish species.

The plant discharges into a tributary of the Delaware River, which flows through the Catskill Mountains and eventually into Delaware Bay. This watershed is ecologically sensitive, supporting coldwater fisheries and serving as a key drinking water source for New York City. The advanced treatment ensures minimal nutrient loading and protects downstream water quality.