Ludlow Lagoon Wastewater Treatment Plant, Ludlow, Missouri

Ludlow Lagoon is a municipal wastewater treatment facility located in Ludlow, Missouri, serving a small population of 137 residents. The plant provides secondary treatment, which is the minimum standard required under the U.S. Clean Water Act for municipal discharges. Its designed capacity and discharge volume are both 75.71 units, indicating a facility sized for the local community. The plant operates under the U.S. National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Missouri Department of Natural Resources. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, meeting EPA effluent guidelines for small communities. The treated effluent from Ludlow Lagoon is discharged into local waterways that drain into the Missouri River watershed. The Missouri River flows eastward to join the Mississippi River, ultimately reaching the Gulf of Mexico. This inland location minimizes direct marine impact but contributes to the overall nutrient load in the Mississippi River basin, which affects the Gulf of Mexico hypoxic zone.

Ludlow Lagoon discharges into tributaries of the Grand River, which flows into the Missouri River near Brunswick, Missouri. The Missouri River then joins the Mississippi River, which empties into the Gulf of Mexico. The facility's discharge contributes to nutrient loading in the Mississippi River basin, a key factor in the Gulf of Mexico's hypoxic zone. The surrounding area is agricultural, and the plant's secondary treatment helps reduce organic pollutants before release.