Littleton/Englewood Wastewater Treatment Plant, Englewood, Colorado

The Littleton/Englewood Wastewater Treatment Plant (WWTP) is a major municipal facility located in Englewood, Colorado, serving a population of approximately 283,741. It is situated along the South Platte River, which flows through the Denver metro area and is a critical water resource for the region. As a large agglomeration serving over 100,000 people, the plant operates under the U. S. Clean Water Act, which requires secondary treatment as a minimum standard. The National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Colorado Department of Public Health and Environment, governs its discharge limits to protect water quality. The plant's treated effluent is discharged into the South Platte River, which flows northeast through Colorado and Nebraska before joining the Platte River. This river system supports diverse aquatic life and provides water for agriculture, recreation, and municipal use downstream. The plant plays a vital role in maintaining the ecological health of the South Platte Basin.

The Littleton/Englewood WWTP discharges into the South Platte River, a major tributary of the Platte River system. The South Platte River flows through the Denver metropolitan area and supports a variety of fish species, including trout, and provides habitat for migratory birds. Downstream, the river contributes to the Platte River, which is an important water source for agriculture and wildlife in Nebraska. The plant's operations are critical to maintaining water quality in this semi-arid region, where water resources are heavily utilized.