Jamestown S Lagoon Wastewater Treatment Plant, Jamestown, Missouri

Jamestown S Lagoon is a municipal wastewater treatment facility located at 199 School Avenue in Jamestown, Moniteau County, Missouri. The plant serves a small population of 150 residents, reflecting the rural character of the area. It operates as a lagoon-based secondary treatment system, a common approach for small communities in the Midwest. The plant has a designed capacity of 113.56 m³/day and currently discharges 75.71 m³/day of treated effluent. As a secondary treatment facility, it meets the minimum requirements under the U.S. Clean Water Act for municipal wastewater treatment. Plants of this scale in Missouri are typically regulated by the Missouri Department of Natural Resources under the National Pollutant Discharge Elimination System (NPDES) permit program. The treated effluent from Jamestown S Lagoon ultimately drains into the Missouri River watershed, which flows into the Mississippi River and then to the Gulf of Mexico. The plant plays a role in protecting local streams and groundwater from untreated sewage, supporting the ecological health of the region's aquatic habitats.

The plant discharges into local waterways that are part of the Missouri River basin, which feeds into the Mississippi River and eventually the Gulf of Mexico. The surrounding area is predominantly agricultural, and the plant helps prevent nutrient pollution and pathogen contamination in nearby streams. The Missouri River supports diverse aquatic life, including fish species such as catfish and paddlefish, and provides habitat for migratory birds along the Central Flyway.