Princeton WWTP - Village of Princeton, Wisconsin Wastewater Treatment Plant

Princeton WWTP is a municipal wastewater treatment facility located in the Village of Princeton, Wisconsin, United States. It serves a population of approximately 1,307 residents, classifying it as a small-scale treatment plant under U.S. regulatory frameworks. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. With a designed capacity of 984.20 thousand gallons per day and an average discharge volume of 783.58 thousand gallons per day, the plant operates below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local waterways that ultimately drain into the Fox River basin and then into Lake Michigan. This discharge supports the ecological health of the region's aquatic habitats, including fish and wildlife populations that depend on clean water.

The plant's discharge enters the Fox River watershed, which flows into Lake Michigan, one of the largest freshwater lakes in the world. The downstream environment supports diverse aquatic life, including fish species such as walleye and bass, and provides important migratory corridors for waterfowl. Maintaining secondary treatment standards helps protect water quality in this ecologically sensitive region.