Clean Water Act discharge permit · NPDES IA0044458
DUBUQUE CITY OF STP, Dubuque, IA: NPDES IA0044458 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 11Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
DUBUQUE CITY OF STP, held by CITY OF DUBUQUE, holds NPDES permit IA0044458. EPA’s file records it issued April 1, 2025 and expiring March 31, 2030. 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 | DUBUQUE CITY OF STP |
|---|---|
| Permittee as filed | CITY OF DUBUQUE |
| NPDES ID | IA0044458 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2025 |
| Expiration date | March 31, 2030 |
| Issuing agency | STA |
| Address | Dubuque, IA 52001 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Frentress Lake-Mississippi River (HUC 070600050202) |
| Program components on file | Biosolids, POTW, Pretreatment |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 14Pollutants on file
- 11Under a numeric limit
- 10With 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 | 9 | 155 | 143 | April 30, 2025 | 2,622% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 90 | 78 | March 31, 2026 | 348% over the limit |
| Nitrogen, ammonia total [as N] | 48 | 11 | 11 | July 31, 2024 | 56% over the limit |
| E. coli | 1 | 11 | 10 | May 31, 2026 | 88,002% over the limit |
| Chlorine, total residual | 0 | 12 | 8 | July 31, 2010 | 787% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 10 | 8 | July 31, 2011 | 70% over the limit |
| pH | 5 | 11 | 5 | June 30, 2018 | |
| Mercury, total [as Hg] | 0 | 10 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 4 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 4 | 0 | ||
| Nitrogen, total [as N] | 10 | 0 | 0 | ||
| Phosphorus, total [as P] | 10 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 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 IA0044458.
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.
Watch this permit
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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 IA0044458 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.