Marston WWTP - Secondary Wastewater Treatment in Marston, Missouri

Marston WWTP is a municipal wastewater treatment facility located on Cedar Street in Marston, New Madrid County, Missouri. The plant serves a small population of 726 residents, providing essential wastewater treatment for this rural community in the southeastern part of the state. The plant operates with secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. With an annual discharge volume of 189.27 thousand cubic meters and a designed capacity of 370.97 thousand cubic meters, the plant has sufficient capacity to handle current flows. Under the National Pollutant Discharge Elimination System (NPDES), plants of this scale are typically permitted by the Missouri Department of Natural Resources. The treated effluent from Marston WWTP is discharged into local waterways that ultimately drain into the Mississippi River basin. The Mississippi River system supports diverse aquatic life and provides drinking water for millions downstream. The plant's secondary treatment helps protect water quality in this ecologically significant watershed.

The treated effluent from Marston WWTP enters local streams that flow into the Mississippi River, one of the largest river systems in North America. The Mississippi River supports a wide range of aquatic species and provides critical habitat for migratory birds. Downstream, the river drains into the Gulf of Mexico, where nutrient loading from upstream sources can contribute to hypoxic zones. Secondary treatment at this plant helps reduce organic pollutants and protect downstream water quality.