Clean Water Act discharge permit · NPDES IA0041912
GRANGER CITY OF STP, Granger, IA: NPDES IA0041912 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
GRANGER CITY OF STP, held by CITY OF GRANGER, holds NPDES permit IA0041912. EPA’s file records it issued August 1, 2016 and expiring July 31, 2021.
GRANGER CITY OF STP, Granger, Iowa: Individual permit IA0041912, held by CITY OF GRANGER; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued August 1, 2016, term to July 31, 2021, by STA; Sewage Treatment Facilities.
- Nitrogen, ammonia total [as N]: 48 limits, 235 violations of any kind, 203 effluent exceedances, latest November 30, 2024, largest 465% over the limit.
- pH: 5 limits, 66 violations of any kind, 43 effluent exceedances, latest July 31, 2026.
- Oxygen, dissolved [DO]: 1 limit, 23 violations of any kind, 19 effluent exceedances, latest July 31, 2020, largest 79% over the limit.
- Flow, in conduit or thru treatment plant: 0 limits, 24 violations of any kind, 8 effluent exceedances, latest September 30, 2010, largest 36% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 49 violations of any kind, 3 effluent exceedances, latest March 31, 2014, largest 42% over the limit.
- E. coli: 0 limits, 4 violations of any kind, 2 effluent exceedances, latest October 31, 2024, largest 94% over the limit.
- Solids, total suspended: 9 limits, 47 violations of any kind, 1 effluent exceedance, latest December 31, 2024, largest 4% over the limit.
- Nitrogen, nitrate total [as N]: 2 limits, 5 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 5 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; 139 were issued before IA0041912.
Coverages issued nearest IA0041912
- July 26, 2016: WINNAVEGAS CASINO COMPLEX, Sloan, IA0073717, held by Winnebago Tribe of Nebraska
- August 1, 2016: ELK HORN CITY OF STP, Elk Horn, IA0027677, held by CITY OF ELK HORN
- August 1, 2016: LUANA CITY OF STP, Luana, IA0027685, held by CITY OF LUANA
- August 1, 2016: ROCK RAPIDS CITY OF STP, Rock Rapids, IA0032786, held by ROCK RAPIDS MUNICIPAL UTILITIES
- August 1, 2016: DALLAS CENTER CITY OF STP, Dallas Center, IA0035319, held by CITY OF DALLAS CENTER
- August 1, 2016: CLEGHORN CITY OF STP, Cleghorn, IA0042846, held by CITY OF CLEGHORN
- August 1, 2016: THOR CITY OF STP, Thor, IA0058581, held by CITY OF THOR
- August 1, 2016: KELLERTON CITY OF STP, Kellerton, IA0061760, held by CITY OF KELLERTON
- August 1, 2016: MENLO CITY OF STP, Menlo, IA0071374, held by CITY OF MENLO
- August 1, 2016: MAPLE RIVER JUNCTION STP, Carroll, IA0081639, held by CARROLL COUNTY
GRANGER CITY OF STP among its neighbors
EPA’s permit file holds 1 discharge permits in the Royer Creek-Beaver Creek subwatershed (HUC 071000040910), IA0041912 among them. Its county holds 19, 4 of them major permits; IA0041912 is a minor permit.
Identity
| Facility as filed | GRANGER CITY OF STP |
|---|---|
| Permittee as filed | CITY OF GRANGER |
| NPDES ID | IA0041912 |
| 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 | August 1, 2016 |
| Expiration date | July 31, 2021 |
| Issuing agency | STA |
| Address | Granger, IA 50109 |
| Subwatershed | Royer Creek-Beaver Creek (HUC 071000040910) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 12Pollutants on file
- 10Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 48 | 235 | 203 | November 30, 2024 | 465% over the limit |
| pH | 5 | 66 | 43 | July 31, 2026 | |
| Oxygen, dissolved [DO] | 1 | 23 | 19 | July 31, 2020 | 79% over the limit |
| Flow, in conduit or thru treatment plant | 0 | 24 | 8 | September 30, 2010 | 36% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 49 | 3 | March 31, 2014 | 42% over the limit |
| E. coli | 0 | 4 | 2 | October 31, 2024 | 94% over the limit |
| Solids, total suspended | 9 | 47 | 1 | December 31, 2024 | 4% over the limit |
| Nitrogen, nitrate total [as N] | 2 | 5 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Nitrogen, total [as N] | 5 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 0 | 0 | ||
| Phosphorus, total [as P] | 5 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0041912.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0041912.
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 IA0041912.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.