Clean Water Act discharge permit · NPDES IA0063282
MIDAMERICAN ENERGY CO. - LOUISA STATION, Muscatine, IA: NPDES IA0063282 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
MIDAMERICAN ENERGY CO. - LOUISA STATION, held by MIDAMERICAN ENERGY COMPANY, holds NPDES permit IA0063282. EPA’s file records it issued April 1, 2020 and expiring March 31, 2025. 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 | MIDAMERICAN ENERGY CO. - LOUISA STATION |
|---|---|
| Permittee as filed | MIDAMERICAN ENERGY COMPANY |
| NPDES ID | IA0063282 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 1, 2020 |
| Expiration date | March 31, 2025 |
| Issuing agency | STA |
| Address | Muscatine, IA 52761 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Boston Bay-Mississippi River (HUC 070801010705) |
| NAICS | 221112 – Fossil Fuel Electric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler IAD000671446; ICIS-AIR source IA0000001911500007 |
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
- 16Pollutants on file
- 14Under a numeric limit
- 14With 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 |
|---|---|---|---|---|---|
| Chlorination duration | 1 | 17 | 15 | November 30, 2014 | 1,100% over the limit |
| Solids, total suspended | 4 | 351 | 13 | July 31, 2022 | 373% over the limit |
| Iron, total [as Fe] | 6 | 19 | 2 | April 30, 2009 | 159% over the limit |
| Chlorine, free available | 2 | 18 | 2 | September 30, 2014 | 560% over the limit |
| Coliform, fecal general | 0 | 17 | 2 | July 31, 2010 | 50% over the limit |
| Chlorine, total residual | 4 | 10 | 2 | September 30, 2014 | 198% over the limit |
| Chromium, total [as Cr] | 2 | 8 | 1 | September 30, 2007 | 59,900% over the limit |
| pH | 4 | 27 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 23 | 0 | ||
| Copper, total [as Cu] | 6 | 20 | 0 | ||
| Oil & Grease | 4 | 14 | 0 | ||
| Zinc, total [as Zn] | 2 | 7 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Nitrogen, total [as N] | 5 | 0 | 0 | ||
| Phosphorus, total [as P] | 5 | 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 IA0063282.
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 IA0063282 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.