Alma Center STP - Secondary Wastewater Treatment Plant in Alma Center, Wisconsin

Alma Center STP is a municipal wastewater treatment facility located in Alma Center, Jackson County, Wisconsin. The plant serves a small community of 677 people and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal facilities of this scale. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 264.98 thousand cubic meters per year and an annual discharge volume of 189.27 thousand cubic meters, the facility operates well within its capacity limits. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River Basin. The plant plays a key role in protecting downstream water quality in the region's rivers and streams, supporting aquatic life and recreational uses.

The plant discharges into local tributaries of the Black River, which flows southward to join the Mississippi River near La Crosse, Wisconsin. The Mississippi River is a major ecological corridor supporting diverse fish and bird species. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream water quality in this agriculturally influenced watershed.