Oswego (c) West Side WWTF
Cor First Ave & W Schuyler St, Oswego, NY 13126 · Oswego County · Publicly Owned Treatment Works
- Average flow
- 3.54 MGD
- Design flow
- 8 MGD
- NPDES permit
- NY0029106
- Effective
- Permit expires
- April 2031
- Population served
- 17,989
- CWNS 2022
Oswego (c) West Side WWTF is a publicly owned wastewater treatment works in Oswego, Oswego County, New York treating an average of 3.54 million gallons per day against a permitted design capacity of 8 MGD, serving about 17,989 residents. It discharges under NPDES permit NY0029106 (effective), which expires in April 2031, with 30 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2010.
Treatment technology
Treatment structures and unit processes at Oswego (c) West Side WWTF.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 30
- Effluent violations
- 23
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 Oswego (c) West Side WWTF in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $99,000
- all cases
- Compliance actions
- $87M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Aug 2010
City of Oswego
Judicial case · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $99,000 · Compliance actions $87M
EPA's description of the case:
“This civil judicial action seeks injunctive relief and penalties under Section 309 of the CWA, against the Defendant for unpermitted discharges in violation of Section 301 of the CWA from the…”
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Source: EPA ECHO, civil enforcement case 02-2005-0011.
Full case history with a free Klarifi account
Every action against Oswego (c) West Side WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
7 verified contacts for Oswego (c) West Side WWTF, with validated emails and direct phone numbers.
Unlock 7 verified contacts (4 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Oswego (c) West Side WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Oswego · 2 mi away
—
Oswego · 3 mi away
0.0053 MGD
Minetto · 4 mi away
0.14 MGD
Fulton · 10 mi away
1.76 MGD
Mexico · 14 mi away
0.26 MGD
Red Creek · 17 mi away
0.32 MGD
Phoenix · 19 mi away
0.45 MGD
Parish · 20 mi away
0.08 MGD
Oswego (c) West Side WWTF: 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 · Oxidation ditch · Anaerobic digester · all terms