York Wastewater Treatment Facility
21 Bay Haven Rd, York, ME 03909 · York County · Publicly Owned Treatment Works
- Average flow
- 0.99 MGD
- Design flow
- 3 MGD
- NPDES permit
- ME0101222
- Effective
- Permit expires
- March 2030
- Population served
- 9,400
- CWNS 2022
York Wastewater Treatment Facility is a publicly owned wastewater treatment works in York, York County, Maine treating an average of 0.99 million gallons per day against a permitted design capacity of 3 MGD, serving about 9,400 residents. It discharges under NPDES permit ME0101222 (effective), which expires in March 2030, with 12 recorded violations in the last three years.
Treatment technology
6 treatment structures and unit processes identified, 1 planned upgrade on record at York Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at York Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 12
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for York Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 1
- latest Jun 2026
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against York Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at York Wastewater Treatment Facility.
No verified contacts on file yet
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Nearby wastewater treatment plants in Maine
Ogunquit · 6 mi away
0.49 MGD
South Berwick · 11 mi away
0.25 MGD
Kennebunkport · 14 mi away
0.32 MGD
Sanford · 17 mi away
1.42 MGD
Biddeford · 22 mi away
0.0075 MGD
Old Orchard Beach · 24 mi away
0.99 MGD
Cape Elizabeth · 34 mi away
0.22 MGD
Limerick · 36 mi away
0.1 MGD
York Wastewater Treatment Facility: 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 26, 2026; facility record last updated March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms