Castleton on Hudson V STP - Secondary Wastewater Treatment in Castleton-on-Hudson, New York

Castleton on Hudson V STP is a municipal wastewater treatment plant located in the Village of Castleton-on-Hudson, Rensselaer County, New York. The plant serves a population of approximately 1,939 residents and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges to surface waters. The facility utilizes secondary treatment processes to meet effluent standards. With a designed capacity of 908.50 thousand gallons per day and an average discharge volume of 537.53 thousand gallons per day, the plant operates well within its capacity. As a smaller facility, it is subject to state-level NPDES permitting administered by the New York State Department of Environmental Conservation. The plant's treated effluent discharges to the Hudson River, a major waterway that flows south to New York Harbor and the Atlantic Ocean. The Hudson River estuary supports diverse aquatic life and is an important migratory corridor for fish species. The plant's secondary treatment helps protect water quality in this ecologically significant river system.

The plant discharges into the Hudson River, which flows approximately 315 miles south through eastern New York to New York Harbor and the Atlantic Ocean. The Hudson River estuary is a tidal system that supports diverse aquatic habitats, including spawning grounds for striped bass and other anadromous fish. The plant's secondary treatment helps maintain water quality in this ecologically sensitive watershed.