Clean Water Act discharge permit · NPDES IA0027677
ELK HORN CITY OF STP, Elk Horn, IA: NPDES IA0027677 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ELK HORN CITY OF STP, held by CITY OF ELK HORN, holds NPDES permit IA0027677. EPA’s file records it issued August 1, 2016 and expiring July 31, 2021.
ELK HORN CITY OF STP, Elk Horn, Iowa: Individual permit IA0027677, held by CITY OF ELK HORN; 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.
- Flow, in conduit or thru treatment plant: 0 limits, 31 violations of any kind, 31 effluent exceedances, latest June 30, 2016, largest 801% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 32 violations of any kind, 26 effluent exceedances, latest May 31, 2024, largest 104% over the limit.
- pH: 5 limits, 25 violations of any kind, 18 effluent exceedances, latest May 31, 2026.
- Solids, total suspended: 10 limits, 13 violations of any kind, 7 effluent exceedances, latest May 31, 2025, largest 35% over the limit.
- BOD, 5-day, 20 deg. C: 5 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.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 139 were issued before IA0027677.
Coverages issued nearest IA0027677
- June 1, 2016: TIPTON CITY OF STP, Tipton, IA0032727, held by CITY OF TIPTON (WEST)
- June 1, 2016: WEST POINT CITY OF STP, West Point, IA0043109, held by CITY OF WEST POINT
- July 1, 2016: NEWELL, CITY OF STP, Newell, IA0021989, held by CITY OF NEWELL
- July 1, 2016: TRACY CITY OF STP (MAHASKA RURAL WATER SYSTEMS, INC.), Tracy, IA0081647, held by MAHASKA RURAL WATER SYSTEMS, INC.
- July 26, 2016: WINNAVEGAS CASINO COMPLEX, Sloan, IA0073717, held by Winnebago Tribe of Nebraska
- 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: GRANGER CITY OF STP, Granger, IA0041912, held by CITY OF GRANGER
- August 1, 2016: CLEGHORN CITY OF STP, Cleghorn, IA0042846, held by CITY OF CLEGHORN
ELK HORN CITY OF STP among its neighbors
EPA’s permit file holds 1 discharge permits in the Elkhorn Creek subwatershed (HUC 102400030402), IA0027677 among them. Its county holds 11, 1 of them major permits; IA0027677 is a minor permit.
Identity
| Facility as filed | ELK HORN CITY OF STP |
|---|---|
| Permittee as filed | CITY OF ELK HORN |
| NPDES ID | IA0027677 |
| 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 | Elk Horn, IA 51531 |
| Subwatershed | Elkhorn Creek (HUC 102400030402) |
Effluent limits and exceedances
- 8Pollutants on file
- 7Under a numeric limit
- 4With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 0 | 31 | 31 | June 30, 2016 | 801% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 32 | 26 | May 31, 2024 | 104% over the limit |
| pH | 5 | 25 | 18 | May 31, 2026 | |
| Solids, total suspended | 10 | 13 | 7 | May 31, 2025 | 35% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 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 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0027677.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0027677.
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 IA0027677.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.