Mill Creek STP
Mill Creek, PA · Huntingdon County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.12 MGD
- NPDES permit
- PA0085740
- Effective
- Permit expires
- January 2031
- Population served
- —
- CWNS 2022
Mill Creek STP is a publicly owned wastewater treatment works in Mill Creek, Huntingdon County, Pennsylvania treating an average of 0.06 million gallons per day against a permitted design capacity of 0.12 MGD. It discharges under NPDES permit PA0085740 (effective), which expires in January 2031, with 2 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
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Mill Creek STP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Pennsylvania
Mapleton Depot · 2 mi away
0.02 MGD
Mount Union · 4 mi away
0.34 MGD
Huntingdon · 5 mi away
1.35 MGD
Mcveytown · 11 mi away
0.03 MGD
Petersburg · 11 mi away
0.02 MGD
Alexandria · 12 mi away
0.06 MGD
Orbisonia · 13 mi away
0.08 MGD
James Creek · 13 mi away
0.005 MGD
Mill Creek 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 October 2, 2025.