Theresa V WWTP, Village of Theresa

Overview

Theresa V WWTP and On Site Sys serves 700 people in the Village of Theresa, New York, with secondary treatment. The plant discharges 140.06 million gallons per year into local waterways.

Theresa V WWTP and On Site Sys is a municipal wastewater treatment facility located on Commercial Street in the Village of Theresa, Jefferson County, New York. Serving a population of approximately 700, the plant provides secondary treatment for the community's wastewater. As a secondary treatment plant, it meets the standard requirements under the US Clean Water Act for removing organic matter and suspended solids. The plant has a designed capacity of 230.91 million gallons per year and currently discharges 140.06 million gallons annually, indicating operational capacity below design levels. The treated effluent is discharged into local waterways that drain into the St. Lawrence River watershed, ultimately reaching the Atlantic Ocean. The plant plays a key role in protecting the region's aquatic ecosystems from untreated sewage.

Environmental context

The plant discharges into tributaries of the St. Lawrence River, which flows into the Gulf of St. Lawrence and the Atlantic Ocean. This watershed supports diverse aquatic life, including fish species such as walleye and smallmouth bass. Secondary treatment reduces nutrient loads, helping to prevent eutrophication in downstream waters.

Frequently asked questions

The plant is located on Commercial Street in the Village of Theresa, Jefferson County, New York, United States.

The plant serves approximately 700 people in the Village of Theresa.

The plant provides secondary treatment and discharges treated effluent into local waterways that are part of the St. Lawrence River watershed.

As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation.

Small plants serving populations under 1,000 often use secondary treatment technologies such as activated sludge or lagoon systems, as required by EPA standards to protect water quality.