Overview
Deferiet V STP is a secondary treatment plant serving 459 people in the Village of Deferiet, New York. It discharges treated wastewater into the local watershed, ultimately draining to Lake Ontario.
Deferiet V STP is a municipal wastewater treatment facility located on Riverside Drive in the Village of Deferiet, Jefferson County, New York. The plant serves a small population of 459 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal plants of this scale. The plant has a designed capacity of 155.20 volume units and a current discharge volume of 117.35 units, indicating it operates below its capacity. As a US facility, it is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent from Deferiet V STP is discharged into a receiving water body that flows into the Black River or a nearby tributary, eventually reaching Lake Ontario. This watershed supports diverse aquatic life and provides recreational opportunities. The plant's location within 50 km of the coast means its discharge contributes to the overall health of the Lake Ontario ecosystem.
Environmental context
The plant discharges into a local waterway that is part of the Black River basin, which flows into Lake Ontario. Lake Ontario is a major freshwater resource supporting fisheries, drinking water, and recreation. The plant's secondary treatment helps reduce organic pollutants and suspended solids, protecting downstream aquatic habitats from nutrient enrichment and oxygen depletion.
Frequently asked questions
Deferiet V STP is located on Riverside Drive in the Village of Deferiet, Town of Wilna, Jefferson County, New York, United States.
The plant serves a population of 459 residents in the Village of Deferiet and surrounding areas.
The plant discharges treated effluent into a local waterway that flows into the Black River basin, which ultimately drains into Lake Ontario.
As a US municipal wastewater plant, Deferiet V STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permit requirements, which set effluent limits for secondary treatment.
For small communities in the US, secondary treatment is the standard required by the Clean Water Act. This level of treatment removes at least 85% of organic matter and suspended solids, protecting receiving water bodies.
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