Culbertson WWTP - Secondary Treatment Facility in Culbertson, Nebraska

Culbertson WWTP is a municipal wastewater treatment plant located in Culbertson, Nebraska, a small community in Hitchcock County. The facility serves a population of around 595 people, reflecting the scale of a small rural agglomeration. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 529.96 thousand gallons per day and an average discharge volume of 340.69 thousand gallons per day, the plant operates well within its capacity. As a U.S. facility, it is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Nebraska Department of Environment and Energy. The treated effluent from Culbertson WWTP is discharged to local streams that flow into the Republican River, a tributary of the Kansas River system. This river network ultimately drains into the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting water quality in the Republican River basin, which supports agricultural irrigation and aquatic habitats.

The plant discharges into the Republican River watershed, which flows through Nebraska and Kansas before joining the Kansas River. This basin supports diverse aquatic life and is an important water source for agriculture. Downstream, the river contributes to the Mississippi River system, eventually reaching the Gulf of Mexico. Protecting water quality in this region helps maintain ecological balance and supports local communities.