Grand Mesa Metropolitan District 1 Wastewater Treatment Plant, Mesa County, Colorado

Grand Mesa Metropolitan District 1 is a wastewater treatment plant located in Mesa County, Colorado, United States. The facility serves a small population of 499 residents, reflecting its role in a rural or semi-rural community within the Grand Mesa region. The plant provides secondary treatment, a standard level of purification that removes biodegradable organic matter and suspended solids. With a designed capacity of 196.84 million gallons per year and an actual discharge volume of 79.49 million gallons per year, the plant operates well below its capacity. Under the U.S. Clean Water Act, such facilities are regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Colorado Department of Public Health and Environment, ensuring compliance with water quality standards. The treated effluent is discharged into a local water body that ultimately drains into the Colorado River Basin. This watershed supports diverse aquatic life and provides water for agriculture, recreation, and downstream communities. The plant's operations help protect the ecological health of the region's streams and rivers.

The plant discharges into a tributary of the Colorado River system, which flows through the arid landscapes of western Colorado and into the Colorado Plateau. The receiving waters support sensitive aquatic species and are a critical resource for irrigation and municipal use in the region. Downstream, the river contributes to the Colorado River Basin, which supplies water to millions of people in the southwestern United States.