Rimersburg Boro STP - Secondary Wastewater Treatment Plant in Rimersburg, Pennsylvania

Rimersburg Boro STP is a municipal wastewater treatment facility located at 193 Blue Row Street in Rimersburg, Clarion County, Pennsylvania. The plant serves a population of approximately 1,051 residents and operates under secondary treatment standards, which is the baseline requirement for municipal wastewater treatment in the United States under the Clean Water Act. The plant has a designed capacity of 757.08 thousand gallons per day and currently discharges an average of 567.81 thousand gallons per day. As a secondary treatment facility, it utilizes biological processes to remove organic matter and suspended solids, meeting the effluent limits set by the National Pollutant Discharge Elimination System (NPDES) permit program. The plant is regulated by the Pennsylvania Department of Environmental Protection, which oversees compliance with state and federal water quality standards. The treated effluent from Rimersburg Boro STP is discharged into a local waterway that ultimately drains into the Allegheny River watershed, a major tributary of the Ohio River system. This region supports diverse aquatic life and provides drinking water for downstream communities. The plant plays a critical role in protecting local streams from nutrient pollution and pathogens, helping to maintain water quality in the broader Ohio River basin.

The plant discharges into a tributary of the Allegheny River, which flows into the Ohio River and eventually the Mississippi River. The Allegheny River watershed supports a variety of fish species, including smallmouth bass and walleye, and is an important migratory corridor for aquatic life. The plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to algal blooms and oxygen depletion in downstream waters.