Clean Water Act discharge permit · NPDES IN0002887
IPALCO PETERSBURG GEN STATION, Petersburg, IN: NPDES IN0002887 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 37Pollutants under a numeric limit
- 16Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
IPALCO PETERSBURG GEN STATION, held by IPALCO - PETERSBURG GEN STATION, holds NPDES permit IN0002887, which discharges to W Fk White R & Lick Creek. EPA’s file records it issued September 29, 2017 and expiring September 30, 2022.
IPALCO PETERSBURG GEN STATION, Petersburg, Indiana: Individual permit IN0002887, held by IPALCO - PETERSBURG GEN STATION; Administratively continued (past its expiration date and still in force until reissued); issued September 29, 2017, term to September 30, 2022, by IDEM; discharges to W FK WHITE R & LICK CREEK.
- Boron, total recoverable: 6 limits, 48 violations of any kind, 46 effluent exceedances, latest January 31, 2026, largest 971% over the limit.
- Selenium, total recoverable: 20 limits, 45 violations of any kind, 34 effluent exceedances, latest May 31, 2025, largest 514% over the limit.
- Iron, total recoverable: 4 limits, 24 violations of any kind, 22 effluent exceedances, latest March 31, 2026, largest 1,000% over the limit.
- Mercury, total recoverable: 8 limits, 19 violations of any kind, 17 effluent exceedances, latest December 31, 2022, largest 298% over the limit.
- BOD, 5-day, 20 deg. C: 6 limits, 17 violations of any kind, 14 effluent exceedances, latest January 31, 2025, largest 122% over the limit.
- Sulfate, total [as SO4]: 23 limits, 20 violations of any kind, 10 effluent exceedances, latest May 31, 2025, largest 64% over the limit.
- Solids, total suspended: 18 limits, 26 violations of any kind, 5 effluent exceedances, latest January 31, 2018, largest 117% over the limit.
- Cadmium, total recoverable: 20 limits, 14 violations of any kind, 4 effluent exceedances, latest March 31, 2020, largest 300% over the limit.
- Oil & Grease: 0 limits, 12 violations of any kind, 4 effluent exceedances, latest June 30, 2005, largest 335% over the limit.
- pH: 24 limits, 28 violations of any kind, 3 effluent exceedances, latest July 31, 2023.
- Copper, total recoverable: 18 limits, 12 violations of any kind, 3 effluent exceedances, latest November 30, 2018, largest 28% over the limit.
- E. coli, colony forming units [CFU]: 3 limits, 3 violations of any kind, 3 effluent exceedances, latest June 30, 2021, largest 85% over the limit.
- Oil and grease, hexane extr method: 18 limits, 9 violations of any kind, 2 effluent exceedances, latest May 31, 2026, largest 15% over the limit.
- Chlorine, total residual: 7 limits, 2 violations of any kind, 2 effluent exceedances, latest October 31, 2014, largest 199,900% over the limit.
- Chlorine, free available: 0 limits, 5 violations of any kind, 1 effluent exceedance, latest June 30, 2006, largest 5% over the limit.
- Chlorination duration: 4 limits, 3 violations of any kind, 1 effluent exceedance, latest June 30, 2025, largest 50% over the limit.
- Arsenic, total recoverable: 16 limits, 37 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 16 limits, 14 violations of any kind, 0 effluent exceedances.
- Storm water flow: 12 limits, 11 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 22 limits, 10 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 20 limits, 10 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 18 limits, 10 violations of any kind, 0 effluent exceedances.
- Chemical Oxygen Demand [COD]: 12 limits, 8 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 12 limits, 5 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 5 limits, 5 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 4 limits, 3 violations of any kind, 0 effluent exceedances.
- Manganese, total recoverable: 4 limits, 3 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Solids, total dissolved: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Chlorination frequency: 4 limits, 2 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
- Cyanide, free [amenable to chlorination]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
- Fluoride, total [as F]: 4 limits, 1 violation of any kind, 0 effluent exceedances.
- Aluminum, dissolved [as Al]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Flow, total: 6 limits, 0 violations of any kind, 0 effluent exceedances.
- Cyanide, free [as free]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Number of Events: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual [dsg. time]: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- Aluminum, total recoverable: 1 limit, 0 violations of any kind, 0 effluent exceedances.
- March 13, 2026: Effluent Violations - Numeric effluent violation (ST6).
- March 13, 2026: Evaluation (S).
- March 13, 2026: Evaluation (S).
- March 13, 2026: Notice of Noncompliance Issued (State).
IPALCO PETERSBURG GEN STATION among its neighbors
EPA’s permit file holds 27 discharge permits in the Lick Creek-White River subwatershed (HUC 051202021001), IN0002887 among them. Its county holds 34, 1 of them major permits; IN0002887 is a major permit.
Other permits in the Lick Creek-White River subwatershed (HUC 051202021001)
- AES ASHBEAM, Petersburg: INRA18101, minor permit, permit term to June 21, 2031
- AES INDIANA - PETERSBURG LANDFILL CLOSURE PROJECT, Petersburg: INRA15925, minor permit, permit term to April 30, 2030
- AESI PETERSBURG GENERATION STATION CLEAN UP, Petersburg: INRA17505, minor permit, permit term to January 28, 2031
- BB MINING INC PRIDE MINE, Monroe City: ING040145, minor permit, discharging to WHITE R VIA TRIBUTARIES, permit term to July 31, 2012
- CITY OF PETERSBURG DIVISION II WWTP IMPROVEMENTS, Petersburg: INRA13215, minor permit, permit term to April 11, 2029
- DEACONESS CLINIC PETERSBURG, Petersburg: INRA06069, minor permit, permit term to August 26, 2025
- DES 1802900 CR 300 N ROAD RECONSTRUCTION, PIKE COUNTY, Petersburg: INRA16367, minor permit, permit term to July 2, 2030
- DUKE ENERGY CIRCUIT 6963 GLT, Petersburg: INRA18493, minor permit, permit term to July 8, 2031
- FORMER TOBACCO ROAD 151, Petersburg: ING080252, minor permit, discharging to PRIDES CREEK, permit term to November 30, 2017
- HOOSIER ENERGY REC INC - FRANK E RATTS STATION, Petersburg: IN0004391, minor permit, discharging to W FK WHITE R TO WHITE R TO WABASH R, permit term to September 30, 2022
Identity
| Facility as filed | IPALCO PETERSBURG GEN STATION |
|---|---|
| Permittee as filed | IPALCO - PETERSBURG GEN STATION |
| NPDES ID | IN0002887 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 29, 2017 |
| Expiration date | September 30, 2022 |
| Issuing agency | IDEM |
| Address | Petersburg, IN 47567 |
| Receiving water | W FK WHITE R & LICK CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lick Creek-White River (HUC 051202021001) |
| Other EPA IDs (FRS) | RCRA handler IND000715268; ICIS-AIR source IN0000001812500002 |
Effluent limits and exceedances
- 39Pollutants on file
- 37Under a numeric limit
- 34With a violation of any kind
- 16With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Boron, total recoverable | 6 | 48 | 46 | January 31, 2026 | 971% over the limit |
| Selenium, total recoverable | 20 | 45 | 34 | May 31, 2025 | 514% over the limit |
| Iron, total recoverable | 4 | 24 | 22 | March 31, 2026 | 1,000% over the limit |
| Mercury, total recoverable | 8 | 19 | 17 | December 31, 2022 | 298% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 17 | 14 | January 31, 2025 | 122% over the limit |
| Sulfate, total [as SO4] | 23 | 20 | 10 | May 31, 2025 | 64% over the limit |
| Solids, total suspended | 18 | 26 | 5 | January 31, 2018 | 117% over the limit |
| Cadmium, total recoverable | 20 | 14 | 4 | March 31, 2020 | 300% over the limit |
| Oil & Grease | 0 | 12 | 4 | June 30, 2005 | 335% over the limit |
| pH | 24 | 28 | 3 | July 31, 2023 | |
| Copper, total recoverable | 18 | 12 | 3 | November 30, 2018 | 28% over the limit |
| E. coli, colony forming units [CFU] | 3 | 3 | 3 | June 30, 2021 | 85% over the limit |
| Oil and grease, hexane extr method | 18 | 9 | 2 | May 31, 2026 | 15% over the limit |
| Chlorine, total residual | 7 | 2 | 2 | October 31, 2014 | 199,900% over the limit |
| Chlorine, free available | 0 | 5 | 1 | June 30, 2006 | 5% over the limit |
| Chlorination duration | 4 | 3 | 1 | June 30, 2025 | 50% over the limit |
| Arsenic, total recoverable | 16 | 37 | 0 | ||
| Flow, in conduit or thru treatment plant | 16 | 14 | 0 | ||
| Storm water flow | 12 | 11 | 0 | ||
| Chromium, total recoverable | 22 | 10 | 0 | ||
| Lead, total recoverable | 20 | 10 | 0 | ||
| Nickel, total recoverable | 18 | 10 | 0 | ||
| Chemical Oxygen Demand [COD] | 12 | 8 | 0 | ||
| Zinc, total recoverable | 12 | 5 | 0 | ||
| Temperature, water deg. fahrenheit | 5 | 5 | 0 | ||
| Chloride [as Cl] | 4 | 3 | 0 | ||
| Manganese, total recoverable | 4 | 3 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 2 | 0 | ||
| Solids, total dissolved | 4 | 2 | 0 | ||
| Chlorination frequency | 4 | 2 | 0 | ||
| Phosphorus, total [as P] | 4 | 1 | 0 | ||
| Cyanide, free [amenable to chlorination] | 4 | 1 | 0 | ||
| Fluoride, total [as F] | 4 | 1 | 0 | ||
| Aluminum, dissolved [as Al] | 1 | 1 | 0 | ||
| Flow, total | 6 | 0 | 0 | ||
| Cyanide, free [as free] | 4 | 0 | 0 | ||
| Number of Events | 2 | 0 | 0 | ||
| Chlorine, total residual [dsg. time] | 1 | 0 | 0 | ||
| Aluminum, total recoverable | 1 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 13, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 13, 2026 | Evaluation | S |
| March 13, 2026 | Evaluation | 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
| Date | What EPA recorded | Agency |
|---|---|---|
| March 13, 2026 | Notice of Noncompliance Issued | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.