Waldron STP - Secondary Wastewater Treatment in Wright Township, Michigan

Waldron STP is a municipal wastewater treatment plant located in Wright Township, Hillsdale County, Michigan. The facility serves a small population of 568 residents, reflecting its role in a rural community within the state's southern region. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal facilities. With a designed capacity of 227.12 megaliters and an annual discharge volume of 189.27 megaliters, the plant operates within its capacity. As a US facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permitting, which sets effluent limits to protect water quality. The treated effluent is discharged into local waterways that ultimately drain into the St. Joseph River watershed, which flows into Lake Michigan. This connection to the Great Lakes ecosystem underscores the importance of maintaining treatment standards to protect downstream aquatic habitats and drinking water sources.

The plant discharges into tributaries of the St. Joseph River, which flows into Lake Michigan, part of the Great Lakes system. This watershed supports diverse aquatic life and provides drinking water for millions. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting the ecological health of the river and lake.