Overview
Granville Twp Main STP serves approximately 5,220 residents in Oliver Township, Pennsylvania. The plant operates under the US Clean Water Act framework, ensuring treated wastewater meets environmental standards before discharge.
Granville Twp Main STP is a municipal wastewater treatment facility located at 191 Chestnut Ridge Road in Oliver Township, Mifflin County, Pennsylvania. The plant serves a population of about 5,220 people, placing it in the small-to-medium agglomeration category for US facilities. As a US-based plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Pennsylvania Department of Environmental Protection. For facilities of this scale, secondary treatment is the standard requirement, with possible additional nutrient removal depending on the receiving water body's sensitivity. The plant's treated effluent is discharged into local waterways within the Susquehanna River basin, which ultimately drains into the Chesapeake Bay. This watershed is ecologically significant, supporting diverse aquatic life and contributing to the bay's complex estuarine ecosystem, which is a focus of regional nutrient reduction efforts.
Environmental context
The plant discharges into tributaries of the Susquehanna River, which flows into the Chesapeake Bay, the largest estuary in the United States. The Chesapeake Bay watershed is ecologically sensitive, supporting diverse fish, shellfish, and bird populations. Nutrient loading from wastewater is a key concern, driving regulatory requirements for enhanced nutrient removal in the region.
Frequently asked questions
Granville Twp Main STP is located at 191 Chestnut Ridge Road, Oliver Township, Mifflin County, Pennsylvania, United States.
The plant serves approximately 5,220 residents, classifying it as a small-to-medium municipal facility.
The plant discharges treated effluent into local waterways within the Susquehanna River basin, which ultimately flows into the Chesapeake Bay.
As a US facility, it operates under the Clean Water Act and is regulated via an NPDES permit issued by the Pennsylvania Department of Environmental Protection, which sets effluent limits and monitoring requirements.
For plants of this scale, secondary treatment is standard, often including biological processes like activated sludge. In sensitive watersheds like the Chesapeake Bay basin, additional nutrient removal may be required to reduce nitrogen and phosphorus loads.
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