Union Twp STP
50 South Kishacoquillas Street, Belleville, PA 17004 · Mifflin County · Publicly Owned Treatment Works
- Average flow
- 0.13 MGD
- Design flow
- —
- NPDES permit
- PAL024708
- Effective
- Permit expires
- December 2030
- Population served
- —
- CWNS 2022
Union Twp STP is a publicly owned wastewater treatment works in Belleville, Mifflin County, Pennsylvania treating an average of 0.13 million gallons per day. It discharges under NPDES permit PAL024708 (effective), which expires in December 2030, with 1 recorded violation in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Union Twp STP.
Available with a free Klarifi account
See the full treatment train at Union Twp STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Union Twp STP.
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Nearby wastewater treatment plants in Pennsylvania
Lewistown · 4 mi away
0.19 MGD
Mcveytown · 7 mi away
0.04 MGD
Reedsville · 7 mi away
0.39 MGD
Lewistown · 8 mi away
1.18 MGD
Mcveytown · 8 mi away
0.04 MGD
Centre Hall · 16 mi away
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Mifflin · 16 mi away
0.35 MGD
Mill Creek · 17 mi away
0.12 MGD
Union Twp 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 October 19, 2026; facility record last updated November 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms