Westchester Co Ossining SD STP, Ossining

Overview

Westchester Co Ossining SD STP serves the Village of Ossining, New York, treating wastewater for approximately 46,536 residents. The plant discharges into the Hudson River, a major tidal estuary flowing into the Atlantic Ocean.

Westchester Co Ossining SD STP is a municipal wastewater treatment facility located at 96 Hunter Street in the Village of Ossining, Westchester County, New York. The plant serves a population of about 46,536 people, classifying it as a medium-sized agglomeration under US EPA guidelines. As a US facility, the plant operates under the Clean Water Act National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. Typical plants of this scale employ secondary treatment with disinfection. The plant's treated effluent is discharged to the Hudson River, a major waterway that flows southward to New York Harbor and the Atlantic Ocean. The Hudson River estuary supports diverse aquatic life, including striped bass and American shad, and is an important migratory corridor for fish and birds.

Environmental context

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 lower Hudson is a tidal estuary with brackish water, supporting a rich ecosystem of fish, invertebrates, and migratory birds. The river is ecologically sensitive due to historical pollution and ongoing urban runoff, making wastewater treatment crucial for maintaining water quality and habitat health.

Frequently asked questions

The plant is located at 96 Hunter Street in the Village of Ossining, Westchester County, New York, United States.

The plant serves approximately 46,536 residents in the Village of Ossining and surrounding areas.

The treated effluent is discharged into the Hudson River, which flows south to New York Harbor and the Atlantic Ocean.

As a US facility, the plant operates under the Clean Water Act and is subject to an NPDES permit issued by the New York State Department of Environmental Conservation, which sets effluent limits to protect water quality.

Plants of this scale in the US typically employ secondary treatment (biological treatment) followed by disinfection, as required by EPA standards for municipal wastewater.