ROCA WWTP - Saline County, Nebraska Wastewater Treatment Plant

ROCA WWTP is a municipal wastewater treatment facility located in Saline County, Nebraska, United States. The plant serves a small population of 132 residents, reflecting its role in a rural or small community setting within the state. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 37.85 cubic meters per day and a discharge volume matching that figure, the facility operates at full capacity. As a US plant, it falls under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permitting program, which sets effluent limits to protect water quality. The treated effluent is discharged into a local water body, likely a stream or river within the Big Blue River basin, which flows into the Platte River and eventually the Missouri River. The plant's operations help safeguard downstream aquatic ecosystems and support regional water quality goals.

The plant discharges into a local watercourse within the Big Blue River watershed, which drains into the Platte River and ultimately the Missouri River. This river system supports diverse aquatic life and provides habitat for fish species such as channel catfish and walleye. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality in this agriculturally intensive region.