Eagle River WSD Avon Wastewater Treatment Plant - Avon, Colorado

Eagle River WSD Avon is a municipal wastewater treatment facility located in Avon, Eagle County, Colorado, serving a population of about 22,704 residents. The plant is situated in the Rocky Mountain region, an area known for its high-altitude environment and seasonal tourism demands. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Colorado Department of Public Health and Environment. For a population of this scale, secondary treatment is typically required, with potential additional nutrient removal to protect sensitive mountain watersheds. The plant's treated effluent is discharged into the Eagle River, which flows into the Colorado River, a critical water source for the southwestern United States. The Colorado River basin supports diverse aquatic ecosystems and provides water for agriculture, municipalities, and hydropower downstream. Protecting water quality in this headwater region is essential for the health of the entire river system.

The plant discharges into the Eagle River, a tributary of the Colorado River. The Colorado River ultimately flows into the Gulf of California, though much of its water is diverted for human use. The Eagle River watershed supports cold-water fisheries, including trout species, and is an important recreational corridor. Maintaining high water quality is crucial for downstream ecosystems and water users.