Eldon Treatment Plant - Municipal Wastewater Facility in Eldon, Missouri

The Eldon Treatment Plant is a municipal wastewater facility located in Eldon, Miller County, Missouri, United States. It serves a population of approximately 4,317 residents, classifying it as a small to medium-sized treatment plant under US regulatory standards. The plant is situated inland, away from coastal areas, and its operations are governed by the US Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. As a facility serving fewer than 10,000 people, the Eldon Treatment Plant is subject to secondary treatment standards under the Clean Water Act, unless a higher level is required to meet water quality standards in the receiving water body. Typical plants of this scale in Missouri employ activated sludge or lagoon systems to achieve secondary treatment. The plant discharges treated effluent into a local water body that ultimately drains into the Osage River basin, part of the larger Missouri River watershed. This river system supports diverse aquatic life and provides water for downstream communities. The plant's discharge is regulated to protect water quality and aquatic habitats in the region.

The Eldon Treatment Plant discharges into a tributary of the Osage River, which flows into the Missouri River and eventually the Mississippi River. This watershed supports a variety of fish and wildlife species, including freshwater mussels and migratory birds. The plant's effluent must meet state and federal water quality standards to prevent nutrient enrichment and protect downstream ecosystems.