New Castle Town of Wastewater Treatment Plant, Glenwood Springs, Colorado

The New Castle Town of wastewater treatment plant serves the community of Glenwood Springs, Colorado, a small agglomeration in the Rocky Mountain region. The facility provides advanced treatment, ensuring high-quality effluent before discharge into the local watershed. With a designed capacity of 2,271.24 million gallons per year and an actual discharge volume of 984.21 million gallons per year, the plant operates well within its capacity. As a US facility, it 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, which set stringent limits on effluent quality. The plant's treated effluent is discharged into the Colorado River basin, which flows through the arid Southwest and ultimately into the Gulf of California. The advanced treatment helps protect downstream aquatic ecosystems and supports water quality for recreational and agricultural uses in the region.

The plant discharges into the Colorado River basin, a critical water source for the western United States. The Colorado River supports diverse aquatic life, including several native fish species, and provides water for irrigation, municipal supply, and hydropower. Downstream, the river flows through desert canyons and eventually reaches the Gulf of California, where it sustains ecologically sensitive delta habitats. Advanced treatment at this plant helps reduce nutrient loading and protect water quality in this arid region.