Evansville Westside WWTP
900 S. Tekoppel, Evansville, IN 47712 · Vanderburgh County · Publicly Owned Treatment Works
- Average flow
- 11.68 MGD
- Design flow
- 21.7 MGD
- NPDES permit
- IN0032956
- Effective
- Permit expires
- January 2027
- Population served
- 56,737
- CWNS 2022
Evansville Westside WWTP is a publicly owned wastewater treatment works in Evansville, Vanderburgh County, Indiana treating an average of 11.68 million gallons per day against a permitted design capacity of 21.7 MGD, serving about 56,737 residents. It discharges under NPDES permit IN0032956 (effective), which expires in January 2027, with 6 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in June 2022.
Treatment technology
2 treatment structures and unit processes identified at Evansville Westside WWTP.
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See the full treatment train at Evansville Westside WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 2
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 Evansville Westside WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $490,000
- all cases
- Compliance actions
- $1,229M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jun 2022
EVANSVILLE, CITY OF
Judicial case · CWA, NPDES Permit Violations · Final Order Entered · Penalty $490,000 · Compliance actions $1,229M
EPA's description of the case:
“To remedy the capacity, operation and maintenance deficiencies of the Evansville East and West WWTPs, combined sewer system, and sanitary sewer system by calendar year 2032 or 2037 if the city…”
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Source: EPA ECHO, civil enforcement case 05-2005-0330.
Full case history with a free Klarifi account
Every action against Evansville Westside WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
37 verified contacts for Evansville Westside WWTP, with validated emails and direct phone numbers.
Unlock 37 verified contacts (34 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Evansville Westside WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Mount Vernon · 12 mi away
0.0061 MGD
Newburgh · 15 mi away
3.17 MGD
Elberfeld · 15 mi away
0.15 MGD
Haubstadt · 17 mi away
0.36 MGD
Poseyville · 17 mi away
0.19 MGD
Boonville · 19 mi away
3.13 MGD
Fort Branch · 19 mi away
0.56 MGD
New Harmony · 21 mi away
0.06 MGD
Evansville Westside 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 29, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms