Clean Water Act discharge permit · NPDES IN0032956
EVANSVILLE WESTSIDE WWTP, Evansville, IN: NPDES IN0032956 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 35Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
EVANSVILLE WESTSIDE WWTP, held by EVANSVILLE WEST WWTP, holds NPDES permit IN0032956, which discharges to Ohio River. EPA’s file records it issued November 29, 2016 and expiring January 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EVANSVILLE WESTSIDE WWTP |
|---|---|
| Permittee as filed | EVANSVILLE WEST WWTP |
| NPDES ID | IN0032956 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 29, 2016 |
| Expiration date | January 31, 2022 |
| Issuing agency | IDEM |
| Address | Evansville, IN 47712 |
| Receiving water | OHIO RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Pond Flat Ditch (HUC 051201130701) |
| Program components on file | Biosolids, CSO, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | RCRA handler IND980618979 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 67Pollutants on file
- 35Under a numeric limit
- 62With a violation of any kind
- 10With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 67 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| E. coli, colony forming units [CFU] | 3 | 35 | 31 | May 31, 2024 | 2,411% over the limit |
| Solids, total suspended | 4 | 35 | 19 | April 30, 2020 | 491% over the limit |
| Cyanide, total [as CN] | 0 | 20 | 12 | December 31, 2004 | 1,300% over the limit |
| Solids, suspended percent removal | 0 | 10 | 8 | January 31, 2012 | 93% over the limit |
| E. coli, MTEC-MF | 0 | 8 | 8 | October 31, 2000 | 24,411% over the limit |
| Chlorine, total residual | 2 | 14 | 4 | September 30, 2019 | 4,500% over the limit |
| pH | 2 | 11 | 3 | July 31, 2017 | |
| BOD, carbonaceous [5 day, 20 C] | 4 | 18 | 2 | April 30, 2020 | 60% over the limit |
| Lead, total recoverable | 4 | 9 | 1 | August 31, 2000 | 79% over the limit |
| Phosphorus, total [as P] | 2 | 4 | 1 | March 31, 2020 | 6% over the limit |
| Precipitation, monthly accumulation | 14 | 34 | 0 | ||
| Arsenic, dry weight | 0 | 33 | 0 | ||
| Selenium, dry weight | 0 | 33 | 0 | ||
| Copper, dry weight | 0 | 33 | 0 | ||
| Cadmium, dry weight | 0 | 33 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 33 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 33 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 33 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 33 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 22 | 0 | ||
| Duration | 14 | 19 | 0 | ||
| Overflow volume [SS0 volume, CSO volume] | 14 | 18 | 0 | ||
| Discharge event observation [Visual Monitoring] | 14 | 18 | 0 | ||
| Ann. amt sludge disposed by other method | 0 | 11 | 0 | ||
| Annual amt of sludge incinerated | 0 | 11 | 0 | ||
| Annual sludge production, total | 0 | 11 | 0 | ||
| Annual amount of sludge land applied | 0 | 11 | 0 | ||
| Annual amt. sludge disposed surface unit | 0 | 11 | 0 | ||
| Annual amt sludge disposed in landfill | 0 | 11 | 0 | ||
| Annual amt sludge transported interstate | 0 | 11 | 0 | ||
| Pollutant table from 503.13 | 0 | 11 | 0 | ||
| Level of pathogen requirements achieved | 0 | 11 | 0 | ||
| Description of pathogen option used | 0 | 11 | 0 | ||
| Vector attraction reduction alternative used | 0 | 11 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 7 | 0 | ||
| Flow, total | 1 | 5 | 0 | ||
| Cadmium, total recoverable | 4 | 4 | 0 | ||
| Chromium, total recoverable | 4 | 4 | 0 | ||
| Copper, total recoverable | 4 | 4 | 0 | ||
| Mercury, total recoverable | 2 | 4 | 0 | ||
| Cadmium, total [as Cd] | 0 | 4 | 0 | ||
| Chromium, total [as Cr] | 0 | 4 | 0 | ||
| Copper, total [as Cu] | 0 | 4 | 0 | ||
| Lead, total [as Pb] | 0 | 4 | 0 | ||
| Nickel, total [as Ni] | 0 | 4 | 0 | ||
| Silver, total [as Ag] | 0 | 4 | 0 | ||
| Zinc, total [as Zn] | 0 | 4 | 0 | ||
| Mercury, total [as Hg] | 0 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 3 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 3 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 3 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 3 | 0 | ||
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 3 | 0 | ||
| Cyanide, free [amenable to chlorination] | 4 | 2 | 0 | ||
| Nickel, total recoverable | 4 | 2 | 0 | ||
| Silver total recoverable | 4 | 2 | 0 | ||
| Zinc, total recoverable | 4 | 2 | 0 | ||
| TU Static 48Hr Acute Daphnia magna | 2 | 2 | 0 | ||
| LC50 Static Renewal 48Hr Acute Daphnia magna | 2 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IN0032956.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 30, 2026 | Reconnaissance without Sampling | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IN0032956.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.