Mound City WWTP - Secondary Wastewater Treatment in Mound City, Missouri

Mound City WWTP is a municipal wastewater treatment facility located in Mound City, Holt County, Missouri. The plant serves a population of about 1,159 people, reflecting a small community in the rural agricultural region of northwestern Missouri. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids from wastewater before discharge. The plant operates under the regulatory framework of the U.S. Clean Water Act, administered by the Missouri Department of Natural Resources. For small communities like Mound City, secondary treatment is the standard requirement, ensuring that effluent meets federal and state water quality standards. The plant has a designed capacity of 484.53 thousand gallons per day and currently treats an average daily flow of 461.82 thousand gallons, indicating near-capacity operation. The treated effluent is discharged into a receiving water body that ultimately drains into the Missouri River, a major tributary of the Mississippi River. The Missouri River supports diverse aquatic life and provides drinking water for downstream communities. The plant's discharge contributes to the overall nutrient load in the basin, but secondary treatment helps mitigate impacts on water quality and local ecosystems.

The plant discharges into a local stream that flows into the Missouri River, which then joins the Mississippi River before reaching the Gulf of Mexico. The Missouri River basin supports a variety of fish species and provides critical habitat for migratory birds. The region's agricultural land use can contribute to nutrient runoff, making the plant's secondary treatment important for controlling local water pollution.