Carlisle Region Water Pollution Control Facility
Carlisle, PA · Cumberland County · Publicly Owned Treatment Works
- Average flow
- 2.28 MGD
- Design flow
- —
- NPDES permit
- PAL026077
- Effective
- Permit expires
- December 2030
- Population served
- 18,364
- CWNS 2022
Carlisle Region Water Pollution Control Facility is a publicly owned wastewater treatment works in Carlisle, Cumberland County, Pennsylvania treating an average of 2.28 million gallons per day, serving about 18,364 residents. Treatment on site includes clarifiers. It discharges under NPDES permit PAL026077 (effective), which expires in December 2030, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Carlisle Region Water Pollution Control Facility.
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Nearby wastewater treatment plants in Pennsylvania
Carlisle · 2 mi away
0.5 MGD
Boiling Springs · 7 mi away
0.76 MGD
Mechanicsburg · 7 mi away
0.75 MGD
Mt Holly Springs · 8 mi away
0.25 MGD
Carlisle · 8 mi away
0.05 MGD
Mechanicsburg · 9 mi away
2.79 MGD
Dillsburg · 10 mi away
0.54 MGD
Mechanicsburg · 10 mi away
0.67 MGD
Carlisle Region Water Pollution Control Facility: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated May 25, 2025.