Overview
Slippery Rock STP serves Slippery Rock Township, Pennsylvania, treating wastewater for approximately 6,445 residents. The plant operates under the US Clean Water Act's NPDES permit program.
Slippery Rock STP is a municipal wastewater treatment plant located in Slippery Rock Township, Butler County, Pennsylvania. It serves a population of approximately 6,445 people, classifying it as a small to medium-sized facility within the region. The plant operates under the regulatory framework of the US Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. For facilities of this scale, secondary treatment is typically mandated to meet effluent limits for biochemical oxygen demand and total suspended solids. The treated effluent is discharged into local waterways within the Beaver River watershed, which ultimately drains into the Ohio River and then the Mississippi River system. This contributes to the ecological health of downstream aquatic habitats, supporting diverse fish and invertebrate communities.
Environmental context
The plant discharges into the Beaver River watershed, part of the larger Ohio River basin. This region supports diverse aquatic life, including game fish species such as smallmouth bass and walleye. The downstream environment benefits from regulated nutrient and pollutant control, helping to maintain water quality for recreation and ecosystem health.
Frequently asked questions
Slippery Rock STP is located at 694 Centreville Pike, Slippery Rock Township, Butler County, Pennsylvania, United States.
The plant serves approximately 6,445 people in the Slippery Rock Township area.
The treated effluent is discharged into local waterways within the Beaver River watershed, which flows into the Ohio River and eventually the Mississippi River.
The plant operates under the US Clean Water Act, requiring an NPDES permit issued by the Pennsylvania Department of Environmental Protection or the EPA.
For small to medium-sized plants in the US, secondary treatment is standard, involving biological processes to reduce organic matter and suspended solids before discharge.
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