Clean Water Act discharge permit · NPDES IA0021024
IRWIN CITY OF STP, Irwin, IA: NPDES IA0021024 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
IRWIN CITY OF STP, held by CITY OF IRWIN, holds NPDES permit IA0021024. EPA’s file records it issued November 1, 2016 and expiring October 31, 2021.
IRWIN CITY OF STP, Irwin, Iowa: Individual permit IA0021024, held by CITY OF IRWIN; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued November 1, 2016, term to October 31, 2021, by STA.
- Solids, total suspended: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- BOD, carbonaceous [5 day, 20 C]: 7 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- E. coli: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Depth of pond or reservoir in feet: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 162 were issued before IA0021024.
Coverages issued nearest IA0021024
- October 1, 2016: ANITA CITY OF STP, Anita, IA0024520, held by CITY OF ANITA
- October 1, 2016: MONTICELLO CITY OF STP, Monticello, IA0026034, held by CITY OF MONTICELLO
- October 1, 2016: OXFORD JUNCTION CITY OF STP, Oxford Junction, IA0032450, held by CITY OF OXFORD JUNCTION
- October 1, 2016: WAUKON CITY OF STP, Waukon, IA0033081, held by CITY OF WAUKON
- October 1, 2016: TERRACE HILL SANITARY DISTRICT STP, Hampton, IA0062472
- November 1, 2016: CORRECTIONVILLE CITY OF STP, Correctionville, IA0023531, held by CITY OF CORRECTIONVILLE
- November 1, 2016: NEW LONDON CITY OF STP, New London, IA0025941, held by CITY OF NEW LONDON
- November 1, 2016: WYOMING, CITY OF STP, Wyoming, IA0032646, held by City of Wyoming
- November 1, 2016: FAIRBANK CITY OF STP, Fairbank, IA0035041, held by CITY OF FAIRBANK
- November 1, 2016: MASSENA CITY OF STP, Massena, IA0048348, held by CITY OF MASSENA
IRWIN CITY OF STP among its neighbors
EPA’s permit file holds 1 discharge permits in the Town of Kirkman-West Nishnabotna River subwatershed (HUC 102400020208), IA0021024 among them. Its county holds 11, 1 of them major permits; IA0021024 is a minor permit.
What the register holds for IRWIN CITY OF STP: its NPDES ID, its permit type and status, its dates, its address in Irwin, Iowa, and 6 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES IA0021024.
Identity
| Facility as filed | IRWIN CITY OF STP |
|---|---|
| Permittee as filed | CITY OF IRWIN |
| NPDES ID | IA0021024 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 1, 2016 |
| Expiration date | October 31, 2021 |
| Issuing agency | STA |
| Address | Irwin, IA 51446 |
| Subwatershed | Town of Kirkman-West Nishnabotna River (HUC 102400020208) |
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 0With a violation of any kind
- 0With 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 | 7 | 0 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 7 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 0 | 0 | ||
| E. coli | 3 | 0 | 0 | ||
| Depth of pond or reservoir in feet | 3 | 0 | 0 | ||
| pH | 2 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES IA0021024.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0021024.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0021024.
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 IA0021024.
Watch this permit
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Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.