Ellicottville (v) STP
1 West Washington Street, Ellicottville, NY 14731 · Cattaraugus County · Publicly Owned Treatment Works
- Average flow
- 1.16 MGD
- Design flow
- 1.4 MGD
- NPDES permit
- NY0023574
- Effective
- Permit expires
- January 2029
- Population served
- 19,298
- CWNS 2022
Ellicottville (v) STP is a publicly owned wastewater treatment works in Ellicottville, Cattaraugus County, New York treating an average of 1.16 million gallons per day against a permitted design capacity of 1.4 MGD, serving about 19,298 residents. It discharges under NPDES permit NY0023574 (effective), which expires in January 2029, with 17 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Ellicottville (v) STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 17
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Ellicottville (v) STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Ellicottville (v) STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Little Valley · 6 mi away
0.09 MGD
Otto · 8 mi away
0.0035 MGD
Salamanca · 9 mi away
1.33 MGD
Cattaraugus · 10 mi away
0.03 MGD
Franklinville · 11 mi away
0.69 MGD
Springville · 16 mi away
0.92 MGD
Limestone · 17 mi away
0.11 MGD
Olean · 18 mi away
3.73 MGD
Ellicottville (v) 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 26, 2026; facility record last updated May 22, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms