IOLA WWTP - Town of Iola, Wisconsin Wastewater Treatment Plant

IOLA WWTP is a municipal wastewater treatment facility located in the Town of Iola, Waupaca County, Wisconsin. The plant serves a small community of approximately 1,432 residents, providing essential sanitation services for the area. The plant operates with secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. It has a designed capacity of 677.59 million gallons per year and currently treats an annual discharge volume of 503.46 million gallons, indicating operational capacity within design limits. The treated effluent is discharged into local waterways that ultimately drain into the Great Lakes basin, contributing to the protection of this vital freshwater resource. The plant's operations are subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, ensuring compliance with environmental standards.

The plant discharges into the Wolf River watershed, which flows into Lake Winnebago and then into Green Bay, part of the Lake Michigan basin. This region supports diverse aquatic life, including migratory fish species such as walleye and lake sturgeon. The plant's secondary treatment helps protect downstream water quality in this ecologically sensitive Great Lakes ecosystem.