Frisco Sanitation District Wastewater Treatment Plant, Frisco Colorado

Frisco Sanitation District is a municipal wastewater treatment facility located in Frisco, Summit County, Colorado. It serves a population of about 6,900 residents in this mountain community situated near the Dillon Reservoir. The plant is part of the region's infrastructure for managing wastewater in a high-altitude, recreational area. 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 community of this size, secondary treatment is typically required, with possible additional nutrient removal to protect sensitive water bodies. It is expected to meet state and federal standards for effluent quality. The plant's treated effluent is discharged into the Dillon Reservoir watershed, which feeds the Blue River, a tributary of the Colorado River. The reservoir is a key water supply for Denver and supports diverse aquatic life and recreational activities. Downstream, the Colorado River flows through arid regions and provides water for agriculture, municipalities, and ecosystems in several states.

The plant discharges into the Dillon Reservoir watershed, which drains into the Blue River and ultimately the Colorado River. The Colorado River Basin supports a wide range of aquatic species and provides water for millions of people across the southwestern United States. Nutrient loading from wastewater can impact water quality in the reservoir and downstream, making effective treatment important for protecting this critical water resource.