East Windsor Township CS_Septics_STP Wastewater Treatment Plant, New Jersey

East Windsor Township CS_Septics_STP is a wastewater treatment facility located in East Windsor Township, Mercer County, New Jersey, United States. The plant serves a population of around 32,214 residents, placing it in the medium-agglomeration category for US municipal wastewater systems. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the New Jersey Department of Environmental Protection. For a plant of this scale, secondary treatment is the minimum standard, with possible additional nutrient removal requirements depending on the receiving water body's sensitivity. The plant discharges treated effluent into local waterways that ultimately drain to the Atlantic Ocean via the Delaware River or Raritan River basins. Its inland location, more than 50 km from the coast, reduces direct marine impact, but the plant still plays a critical role in protecting downstream aquatic ecosystems and drinking water sources.

The plant's treated effluent flows into tributaries of either the Delaware River or Raritan River, both of which drain into the Delaware Bay and eventually the Atlantic Ocean. This watershed supports diverse aquatic life, including migratory fish species, and provides drinking water for millions in the region. The plant's operations help maintain water quality in these ecologically sensitive waterways.