Mountaintop Clarence STP
Clarence, PA · Centre County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.23 MGD
- NPDES permit
- PA0208728
- Effective
- Permit expires
- October 2030
- Population served
- —
- CWNS 2022
Mountaintop Clarence STP is a publicly owned wastewater treatment works in Clarence, Centre County, Pennsylvania treating an average of 0.04 million gallons per day against a permitted design capacity of 0.23 MGD. Treatment on site includes aerated lagoons. It discharges under NPDES permit PA0208728 (effective), which expires in October 2030, with 28 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 28
- Effluent violations
- 24
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Mountaintop Clarence STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Mountaintop Clarence STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Moshannon · 6 mi away
0.01 MGD
Grassflat · 10 mi away
0.02 MGD
Milesburg · 11 mi away
0.3 MGD
Karthaus · 11 mi away
0.02 MGD
Bellefonte · 15 mi away
1.82 MGD
State College · 16 mi away
2.82 MGD
Beech Creek · 18 mi away
0.05 MGD
Port Matilda · 18 mi away
0.04 MGD
Mountaintop Clarence STP: 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 November 27, 2025.