WRAY WWTP - Secondary Treatment Plant in Yuma County, Colorado

WRAY WWTP is a municipal wastewater treatment facility located in Yuma County, Colorado, serving a population of 2,287. The plant provides secondary treatment, a standard level for communities of this size in the United States, ensuring compliance with Clean Water Act requirements. The plant has a designed capacity of 1,514.16 million gallons per year and treats an average discharge volume of 719.23 million gallons annually. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids, meeting EPA effluent guidelines for municipal wastewater. The treated effluent is discharged into local waterways that drain into the Republican River basin, which flows through the Great Plains and eventually into the Mississippi River system. The plant plays a key role in protecting downstream water quality in this agriculturally intensive region.

The plant discharges into the Republican River watershed, a tributary of the Kansas River that ultimately flows into the Mississippi River and the Gulf of Mexico. This region supports agricultural irrigation and provides habitat for aquatic species. The plant's secondary treatment helps reduce nutrient loading and organic pollution, protecting downstream ecosystems in the Great Plains.