Chillicothe WWTP - Secondary Treatment Plant in Wapello County, Iowa

Chillicothe WWTP is a municipal wastewater treatment facility located near Myrick Cemetery in Wapello County, Iowa, United States. The plant serves a small population of 125 residents and operates under secondary treatment standards, which is the minimum required by the U.S. Clean Water Act for municipal wastewater. The plant has a designed capacity of 49.21 million gallons per day and currently discharges 15.14 million gallons per day. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids before discharge. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent is discharged into a local water body, likely a stream or river within the Mississippi River basin. The plant's location in rural Iowa means its discharge supports local aquatic ecosystems and downstream water quality. Proper treatment helps prevent nutrient pollution and protects recreational and ecological uses of receiving waters.

The plant discharges into a local water body that ultimately drains into the Mississippi River basin. The receiving waters support diverse aquatic life and are used for recreation and agriculture. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in this rural watershed.