Northeastern York Co. Sew Auth
175 Chestnut St, Mount Wolf, PA 17347 · York County · Publicly Owned Treatment Works
- Average flow
- 0.73 MGD
- Design flow
- —
- NPDES permit
- PAL023744
- Effective
- Permit expires
- December 2030
- Population served
- 4,962
- CWNS 2022
Northeastern York Co. Sew Auth is a publicly owned wastewater treatment plant in Mount Wolf, York County, Pennsylvania treating an average of 0.73 million gallons per day, serving about 4,962 residents. It discharges under NPDES permit PAL023744 (effective), which expires in December 2030, with 2 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Northeastern York Co. Sew Auth.
Available with a free Klarifi account
See the full treatment train at Northeastern York Co. Sew Auth: structures, unit processes and planned upgrades, with exact unit counts.
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 Northeastern York Co. Sew Auth.
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Nearby wastewater treatment plants in Pennsylvania
Mount Wolf · 1 mi away
0.09 MGD
York · 2 mi away
0.38 MGD
Bainbridge · 3 mi away
0.05 MGD
York · 4 mi away
9.09 MGD
Bainbridge · 4 mi away
0.01 MGD
York Haven · 6 mi away
0.5 MGD
Elizabethtown · 6 mi away
2 MGD
Dover · 9 mi away
0.19 MGD
Northeastern York Co. Sew Auth: 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 September 10, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms