LEIGH WWTP - Secondary Treatment Plant in Leigh, Nebraska

LEIGH WWTP is a municipal wastewater treatment facility located at 601 East Wall Street in Leigh, Nebraska, within Colfax County. The plant serves a small population of 519 residents, reflecting the rural character of the community. It is situated in the Great Plains region, where agriculture is a dominant land use. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 151.42 megaliters and an annual discharge volume of 189.27 megaliters, the facility operates within its capacity. As a U.S. plant, 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 is discharged into a local water body that ultimately drains into the Platte River basin, a major tributary of the Missouri River. The Platte River supports diverse aquatic life and is an important migratory corridor for birds such as sandhill cranes. The plant's secondary treatment helps protect downstream water quality in this ecologically significant watershed.

The plant discharges into a receiving water body within the Platte River basin, which flows into the Missouri River and eventually the Mississippi River. This watershed supports a variety of fish species and provides critical habitat for migratory waterfowl. The Platte River is known for its shallow, braided channels and sandbars, which are essential for nesting and stopover sites. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain the ecological health of this important river system.