Clean Water Act discharge permit · NPDES IA0042609
KEOKUK CITY OF STP, Keokuk, IA: NPDES IA0042609 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 11Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
KEOKUK CITY OF STP, held by CITY OF KEOKUK, holds NPDES permit IA0042609. EPA’s file records it issued September 1, 2018 and expiring August 31, 2023. 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 | KEOKUK CITY OF STP |
|---|---|
| Permittee as filed | CITY OF KEOKUK |
| NPDES ID | IA0042609 |
| 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 | September 1, 2018 |
| Expiration date | August 31, 2023 |
| Issuing agency | STA |
| Address | Keokuk, IA 52632 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cedar Glen Creek-Mississippi River (HUC 070801041806) |
| 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
- 11Pollutants on file
- 11Under a numeric limit
- 6With a violation of any kind
- 5With 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 | 141 | 129 | April 30, 2026 | 1,580% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 64 | 52 | March 31, 2026 | 730% over the limit |
| pH | 5 | 17 | 9 | October 31, 2020 | |
| E. coli | 1 | 16 | 4 | April 30, 2024 | 1,820% over the limit |
| Toxicity [acute], Ceriodaphnia dubia | 1 | 3 | 1 | September 30, 2022 | 100% over the limit |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 3 | 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, ammonia total [as N] | 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 IA0042609.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 9, 2026 | Evaluation | E |
| March 9, 2026 | Evaluation | E |
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 IA0042609.
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 IA0042609 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.