Olean (c) WWTP
174 S. 19th Street, Olean, NY 14760 · Cattaraugus County · Publicly Owned Treatment Works
- Average flow
- 3.73 MGD
- Design flow
- 7 MGD
- NPDES permit
- NY0027162
- Administratively continued
- Permit expires
- April 2022
- Population served
- 20,387
- CWNS 2022
Olean (c) WWTP is a publicly owned wastewater treatment works in Olean, Cattaraugus County, New York treating an average of 3.73 million gallons per day against a permitted design capacity of 7 MGD, serving about 20,387 residents. It discharges under NPDES permit NY0027162 (administratively continued), which expires in April 2022, with 4 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2020.
Treatment technology
2 treatment structures and unit processes identified at Olean (c) WWTP.
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See the full treatment train at Olean (c) WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
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 Olean (c) WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $3,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Feb 2020
City of Olean
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $3,000
EPA's description of the case:
“This Administrative Order requires the City to develop and submit to EPA and NYSDEC its monthly and yearly reports in accordance with the BMPs in its SPDES Permit. This Order also requires the City…”
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Source: EPA ECHO, civil enforcement case 02-2020-3002.
Full case history with a free Klarifi account
Every action against Olean (c) WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
3 verified contacts for Olean (c) WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Olean (c) WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Limestone · 10 mi away
0.11 MGD
Cuba · 13 mi away
0.44 MGD
Bolivar · 14 mi away
0.29 MGD
Salamanca · 16 mi away
1.33 MGD
Franklinville · 18 mi away
0.69 MGD
Ellicottville · 18 mi away
1.16 MGD
Friendship · 19 mi away
0.12 MGD
Little Valley · 21 mi away
0.09 MGD
Olean (c) WWTP: 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 16, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms