Pontiac STP Wastewater Treatment Plant, Pontiac, Michigan

Pontiac STP is a municipal wastewater treatment plant located in Pontiac, Michigan, serving a population of approximately 68,164 residents. The facility is situated in Oakland County and plays a key role in managing the region's wastewater. As a US-based plant serving a medium-sized agglomeration, Pontiac STP operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program. The plant has a designed capacity of 1. 00 million gallons per day, and typical treatment for facilities of this scale includes secondary treatment to meet federal standards for effluent quality. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Great Lakes basin. The Clinton River and its tributaries are the primary receiving waters in the Pontiac area, flowing into Lake St. Clair and then into Lake Erie. This water body supports diverse aquatic life and is an important resource for recreation and drinking water.

Pontiac STP discharges into the Clinton River watershed, which flows into Lake St. Clair and then into Lake Erie, part of the Great Lakes system. The Great Lakes are a globally significant freshwater resource, supporting diverse aquatic ecosystems and providing drinking water for millions. The plant's operations are critical to protecting water quality in this sensitive basin, particularly given the region's industrial and urban runoff concerns.