Clean Water Act discharge permit · NPDES IA0023442
IOWA FALLS CITY OF STP, Iowa Falls, IA: NPDES IA0023442 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 13Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
IOWA FALLS CITY OF STP, held by CITY OF IOWA FALLS, holds NPDES permit IA0023442. EPA’s file records it issued September 1, 2020 and expiring August 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | IOWA FALLS CITY OF STP |
|---|---|
| Permittee as filed | CITY OF IOWA FALLS |
| NPDES ID | IA0023442 |
| 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, 2020 |
| Expiration date | August 31, 2025 |
| Issuing agency | STA |
| Address | Iowa Falls, IA 50126 |
| Subwatershed | School Creek-Iowa River (HUC 070802070901) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 13Under a numeric limit
- 7With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| pH | 7 | 8 | 1 | January 31, 2017 | |
| Solids, total suspended | 13 | 18 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 8 | 14 | 0 | ||
| Chlorine, total residual | 8 | 10 | 0 | ||
| Nitrogen, ammonia total [as N] | 144 | 8 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 3 | 0 | ||
| Nitrogen, total [as N] | 15 | 0 | 0 | ||
| Phosphorus, total [as P] | 15 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 0 | 0 | ||
| Chloride [as Cl] | 5 | 0 | 0 | ||
| E. coli | 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 IA0023442.
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 IA0023442 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.