Pottsgrove STP
4842 State Route 642, Milton, PA 17847 · Northumberland County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.04 MGD
- NPDES permit
- PA0228478
- Effective
- Permit expires
- October 2027
- Population served
- —
- CWNS 2022
Pottsgrove STP is a publicly owned wastewater treatment works in Milton, Northumberland County, Pennsylvania treating an average of 0.02 million gallons per day against a permitted design capacity of 0.04 MGD. It discharges under NPDES permit PA0228478 (effective), which expires in October 2027, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Pottsgrove STP.
Treatment structure data not yet analyzed for this facility.
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 Pottsgrove STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Danville · 4 mi away
0.0037 MGD
Milton · 4 mi away
1.61 MGD
New Columbia · 5 mi away
0.26 MGD
Washingtonville · 8 mi away
0.05 MGD
Danville · 8 mi away
1.75 MGD
Sunbury · 10 mi away
2.1 MGD
Snydertown · 10 mi away
0.0029 MGD
Jerseytown · 12 mi away
0.009 MGD
Pottsgrove 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 12, 2026; facility record last updated October 2, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms