Williamsport Sanitary Authority - West Plant
Williamsport, PA · Lycoming County · Publicly Owned Treatment Works
- Average flow
- 1.22 MGD
- Design flow
- 3.92 MGD
- NPDES permit
- PA0027049
- Effective
- Permit expires
- February 2029
- Population served
- —
- CWNS 2022
Williamsport Sanitary Authority - West Plant is a publicly owned wastewater treatment plant in Williamsport, Lycoming County, Pennsylvania treating an average of 1.22 million gallons per day against a permitted design capacity of 3.92 MGD. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit PA0027049 (effective), which expires in February 2029, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
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
3 verified contacts for Williamsport Sanitary Authority - West Plant, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Williamsport Sanitary Authority - West Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Williamsport · 3 mi away
3.06 MGD
Jersey Shore · 15 mi away
0.66 MGD
New Columbia · 16 mi away
0.14 MGD
Milton · 18 mi away
1.66 MGD
Loganton · 20 mi away
0.02 MGD
Mifflinburg · 21 mi away
0.49 MGD
Lewisburg · 21 mi away
0.84 MGD
Milton · 21 mi away
0.01 MGD
Williamsport Sanitary Authority - West Plant: 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 March 3, 2025.