Holyoke City of Wastewater Treatment Plant, Holyoke, Colorado

The Holyoke City of wastewater treatment plant is located on County Road 41 in Holyoke, Phillips County, Colorado. It serves a population of approximately 2,261 people, making it a small municipal facility in the eastern plains of the state. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The facility provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 1,135.62 million gallons per day and an average discharge volume of 984.21 million gallons per day, the plant operates at a high utilization rate. This indicates efficient use of its infrastructure to meet the community's wastewater needs. The treated effluent is discharged into local receiving waters that ultimately drain into the South Platte River basin. This river system supports agricultural irrigation, wildlife habitats, and downstream communities. The plant's operations help protect water quality in this semi-arid region, where water resources are critical for both ecological and economic activities.

The plant discharges into local streams that flow into the South Platte River, a major tributary of the Platte River system. This watershed supports diverse aquatic life and provides water for agriculture and municipal use across northeastern Colorado. The region's semi-arid climate makes water quality management essential for sustaining downstream ecosystems and human activities.