Altoona C A / Plane Nine WTP
Duncansville, PA · Blair County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.24 MGD
- NPDES permit
- PA0085120
- Effective
- Permit expires
- May 2031
- Population served
- —
- CWNS 2022
Altoona C A / Plane Nine WTP is a publicly owned wastewater treatment plant in Duncansville, Blair County, Pennsylvania treating an average of 0.05 million gallons per day against a permitted design capacity of 0.24 MGD. It discharges under NPDES permit PA0085120 (effective), which expires in May 2031, with 48 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 48
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Altoona C A / Plane Nine WTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Duncansville · 3 mi away
0.53 MGD
Gallitzin · 5 mi away
0.11 MGD
Duncansville · 5 mi away
0.21 MGD
Cresson · 5 mi away
0.35 MGD
Portage · 6 mi away
0.0054 MGD
Hollidaysburg · 7 mi away
1.5 MGD
Roaring Spring · 8 mi away
0.35 MGD
Portage · 8 mi away
0.08 MGD
Altoona C A / Plane Nine WTP: 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 July 18, 2023.