FIRTH WWTP - Secondary Wastewater Treatment in Firth, Nebraska

FIRTH WWTP is a municipal wastewater treatment facility located in Firth, Nebraska, a small community in Lancaster County. The plant serves a population of 564 residents, providing essential sanitation services for the local area. The plant employs secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 227.12 units and a daily discharge volume of 227.13 units, the facility operates near its design capacity. As a U.S. plant, it falls under the Clean Water Act and is regulated via an EPA NPDES permit issued by the Nebraska Department of Environment and Energy, which sets effluent limits to protect water quality. The treated effluent is discharged into a local waterway that ultimately drains into the Missouri River basin, part of the larger Mississippi River watershed. This downstream connection highlights the plant's role in protecting regional water quality and aquatic ecosystems.

The plant discharges into a tributary of the Missouri River, which flows into the Mississippi River and eventually the Gulf of Mexico. The local watershed supports diverse aquatic life and is an important corridor for migratory fish. The plant's secondary treatment helps reduce nutrient and organic loads, mitigating downstream eutrophication risks in the Mississippi River basin.