Albany WWTP - Secondary Treatment Plant in Albany, Wisconsin

Albany WWTP is a municipal wastewater treatment facility located in Albany, Green County, Wisconsin, United States. The plant serves a small population of approximately 1,018 residents, reflecting the rural character of the area. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids from wastewater. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Wisconsin Department of Natural Resources, governs the plant's discharge limits and monitoring requirements. With a designed capacity of 473.18 m³/day and an average daily flow of 378.54 m³/day, the plant operates at about 80% capacity, indicating adequate headroom for current demand. The treated effluent is discharged into a local water body, ultimately draining into the Mississippi River Basin. The plant's location inland, more than 50 km from the coast, reduces direct marine impact. The surrounding watershed supports agricultural and rural ecosystems, and the plant's secondary treatment helps protect downstream water quality in streams and rivers feeding the Mississippi River.

Albany WWTP discharges into a local stream that flows into the Pecatonica River, a tributary of the Rock River, which eventually reaches the Mississippi River. This watershed supports diverse aquatic life and is part of a larger agricultural region. The plant's secondary treatment reduces nutrient and organic loads, helping to maintain water quality in downstream ecosystems, including the Mississippi River's extensive network of wetlands and floodplains.