NPDES IA0036145 · Clean Water Act
ONAWA CITY OF STP, Onawa, IA: NPDES IA0036145 discharge permit, effluent exceedances, inspections, penalties
ONAWA CITY OF STP, Onawa, Iowa: Individual permit IA0036145, held by CITY OF ONAWA; Publicly owned treatment works; Administratively continued; issued April 28, 2003, term to April 27, 2008, by STA.
3 of the 8 pollutants listed for NPDES IA0036145 have no violation or effluent exceedance.
- Solids, total suspended: 11 limits, 75 violations of any kind, 67 effluent exceedances, latest July 31, 2026, largest 962% over the limit.
- pH: 10 limits, 53 violations of any kind, 49 effluent exceedances, latest July 31, 2007.
- BOD, carbonaceous [5 day, 20 C]: 11 limits, 36 violations of any kind, 28 effluent exceedances, latest April 30, 2026, largest 161% over the limit.
- Toxicity [acute], Ceriodaphnia dubia: 2 limits, 2 violations of any kind.
- Toxicity [acute], Pimephales promelas [Fathead Minnow]: 2 limits, 2 violations of any kind.
- Alkalinity, total [as CaCO3]: 3 limits.
- Solids, settleable: 3 limits.
- Acids, total volatile [as acetic acid]: 3 limits.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 17 were issued before IA0036145.
Coverages issued nearest IA0036145
- 2002-01-15: PACKWOOD CITY OF STP, Packwood: IA0057819, held by CITY OF PACKWOOD
- 2002-04-22: FARMERSBURG CITY OF STP, Farmersburg: IA0028495, held by CITY OF FARMERSBURG
- 2002-07-01: MONDAMIN CITY OF STP, Mondamin: IA0023507, held by CITY OF MONDAMIN
- 2003-01-27: FREDERICKSBURG CITY OF STP, Fredericksburg: IA0028991, held by CITY OF FREDERICKSBURG
- 2003-04-03: GARNAVILLO CITY OF STP, Garnavillo: IA0026697, held by CITY OF GARNAVILLO
- 2004-01-27: ORANGE CITY CITY OF STP, Orange City: IA0032751, held by CITY OF ORANGE CITY
- 2004-04-08: ALBIA CITY OF STP (WEST), Albia: IA0036889, held by CITY OF ALBIA
- 2004-06-28: DANVILLE CITY OF STP, Danville: IA0025861, held by CITY OF DANVILLE
- 2004-09-21: BANKSTON CITY OF STP, Bankston: IA0071731, held by CITY OF BANKSTON
- 2004-11-23: MAHARISHI VEDIC CITY, Fairfield: IA0078417
ONAWA CITY OF STP among its neighbors
1 discharge permits are in the McNeil Ditch subwatershed (HUC 102300040502); IA0036145 is one. Its county: 6, 0 major; IA0036145 is minor permit.
Identity
| Facility | ONAWA CITY OF STP |
|---|---|
| Permittee | CITY OF ONAWA |
| NPDES ID | IA0036145 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 28, 2003 |
| Expires | April 27, 2008 |
| Agency | STA |
| Address | Onawa, IA 51040 |
| Subwatershed | McNeil Ditch (HUC 102300040502) |
NPDES IA0036145: effluent limits and exceedances
ONAWA CITY OF STP (NPDES IA0036145): 8 pollutants on file, 8 limited; 5 with a violation of any kind, 3 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 11 | 75 | 67 | July 31, 2026 | 962% over the limit |
| pH | 10 | 53 | 49 | July 31, 2007 | |
| BOD, carbonaceous [5 day, 20 C] | 11 | 36 | 28 | April 30, 2026 | 161% over the limit |
| Toxicity [acute], Ceriodaphnia dubia | 2 | 2 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 2 | 0 | ||
| Alkalinity, total [as CaCO3] | 3 | 0 | 0 | ||
| Solids, settleable | 3 | 0 | 0 | ||
| Acids, total volatile [as acetic acid] | 3 | 0 | 0 |
NPDES IA0036145: inspections, violations and enforcement
NPDES IA0036145 (ONAWA CITY OF STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES IA0036145
NPDES IA0036145: one email when its EPA record changes — $99/month.
Permits near NPDES IA0036145
NPDES IA0036145: 8 pollutant rows, 0 dated events; ICIS-NPDES download, loaded September 15, 2026.