MIDDLETOWN WWTP - Secondary Treatment Plant in Middletown, Iowa

MIDDLETOWN WWTP is a municipal wastewater treatment facility located in Middletown, Des Moines County, Iowa. The plant serves a small population of 535 residents and operates under the regulatory framework of the United States Clean Water Act, which requires secondary treatment for all publicly owned treatment works. The plant has a designed capacity of 1249.18 million gallons per year and currently discharges 151.42 million gallons per year. As a secondary treatment facility, it provides biological treatment to remove organic matter and suspended solids, meeting the national effluent guidelines for secondary treatment set by the EPA. The treated effluent is discharged into the local watershed, which ultimately drains into the Mississippi River via the Skunk River or nearby tributaries. The Mississippi River is a major ecological corridor supporting diverse aquatic life and migratory birds. The plant's location inland, away from coastal areas, reduces direct marine impact.

The plant discharges into the local watershed in Des Moines County, which flows into the Skunk River and then the Mississippi River. The Mississippi River is a critical waterway for the central United States, supporting a wide range of fish species and providing habitat for migratory waterfowl. The area is part of the Upper Mississippi River basin, which is ecologically sensitive due to nutrient loading concerns and the presence of endangered species like the pallid sturgeon.