THOMPSON WPCF - Thompson, Connecticut Wastewater Treatment Plant

THOMPSON WPCF (Water Pollution Control Facility) serves the town of Thompson in northeastern Connecticut. The plant provides secondary treatment for a population of approximately 2,708 residents, with a designed capacity of 5,148.14 thousand gallons per day and an average daily flow of 575.38 thousand gallons per day. As a secondary treatment facility, THOMPSON WPCF meets the standard requirements under the U.S. Clean Water Act, which mandates secondary treatment for municipal wastewater plants. The plant operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the Connecticut Department of Energy and Environmental Protection, ensuring compliance with effluent limits. The treated effluent is discharged into a local water body that drains into the Quinebaug River, a tributary of the Thames River basin. This watershed supports diverse aquatic life and provides recreational opportunities. The plant's inland location reduces direct marine impact, but its discharge contributes to the overall health of the river ecosystem.

THOMPSON WPCF discharges into a local stream that flows into the Quinebaug River, part of the Thames River basin in Connecticut. The Quinebaug River supports a variety of fish species and is an important corridor for migratory birds. Downstream, the Thames River empties into Long Island Sound, a vital estuary that provides habitat for marine life and supports commercial and recreational fishing. The plant's secondary treatment helps protect water quality in this interconnected watershed.