Clean Water Act discharge permit · NPDES IN0051845
AMERICAN ELECTRIC POWER CO ROCKPORT PLANT, Rockport, IN: NPDES IN0051845 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 35Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
AMERICAN ELECTRIC POWER CO ROCKPORT PLANT, held by AMERICAN ELECTRIC POWER, ROCKPORT PLANT, holds NPDES permit IN0051845, which discharges to Ohio River. EPA’s file records it issued November 13, 2015 and expiring November 30, 2020. 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 | AMERICAN ELECTRIC POWER CO ROCKPORT PLANT |
|---|---|
| Permittee as filed | AMERICAN ELECTRIC POWER, ROCKPORT PLANT |
| NPDES ID | IN0051845 |
| 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 | November 13, 2015 |
| Expiration date | November 30, 2020 |
| Issuing agency | IDEM |
| Address | Rockport, IN 47635 |
| Receiving water | OHIO RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Honey Creek (HUC 051402010801) |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler IND086762226; ICIS-AIR source IN0000001814700020 |
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
- 38Pollutants on file
- 35Under a numeric limit
- 13With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 17 | 8 | 5 | June 30, 2020 | 333% over the limit |
| Selenium, total recoverable | 4 | 4 | 3 | February 28, 2025 | 598% over the limit |
| Clamtrol CT-1, Total Water | 1 | 3 | 3 | June 30, 2006 | 4% over the limit |
| Iron, total [as Fe] | 0 | 3 | 3 | July 31, 1995 | 27,900% over the limit |
| Fluoride, total [as F] | 2 | 2 | 2 | October 31, 2012 | 863% over the limit |
| pH | 14 | 10 | 1 | January 31, 2000 | |
| Oil & Grease | 0 | 5 | 1 | September 30, 1999 | 1% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 4 | 0 | ||
| Chlorine, total residual | 2 | 2 | 0 | ||
| Flow, total | 2 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 6 | 1 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 1 | 0 | ||
| Oxidants, total residual | 0 | 1 | 0 | ||
| Oil and grease, hexane extr method | 16 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 12 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 12 | 0 | 0 | ||
| Phosphorus, total [as P] | 12 | 0 | 0 | ||
| Storm water flow | 10 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 8 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 8 | 0 | 0 | ||
| Copper, total recoverable | 5 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 0 | 0 | ||
| Phosphate, ortho [as PO4] | 4 | 0 | 0 | ||
| Sulfate, total [as SO4] | 4 | 0 | 0 | ||
| Boron, total recoverable | 4 | 0 | 0 | ||
| Zinc, total recoverable | 4 | 0 | 0 | ||
| Chromium, total recoverable | 4 | 0 | 0 | ||
| Mercury, total recoverable | 4 | 0 | 0 | ||
| Iron, total recoverable | 3 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 2 | 0 | 0 | ||
| Barium, total recoverable | 2 | 0 | 0 | ||
| Aluminum, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Molybdenum, total recoverable | 2 | 0 | 0 | ||
| Manganese, total recoverable | 2 | 0 | 0 | ||
| Chlorine, free available | 2 | 0 | 0 | ||
| Flow, augmented water | 2 | 0 | 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 IN0051845.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
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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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IN0051845 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.