Clean Water Act discharge permit · NPDES IA0028975
BLUE GRASS CITY OF STP, Blue Grass, IA: NPDES IA0028975 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
BLUE GRASS CITY OF STP, held by CITY OF BLUE GRASS, holds NPDES permit IA0028975. EPA’s file records it issued September 1, 2015 and expiring August 31, 2020.
BLUE GRASS CITY OF STP, Blue Grass, Iowa: Individual permit IA0028975, held by CITY OF BLUE GRASS; Publicly owned treatment works; Effective; issued September 1, 2015, term to August 31, 2020, by STA.
- Oxygen, dissolved [DO]: 4 limits, 49 violations of any kind, 44 effluent exceedances, latest June 30, 2025, largest 59% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 4 limits, 18 violations of any kind, 10 effluent exceedances, latest April 30, 2025, largest 43% over the limit.
- pH: 5 limits, 11 violations of any kind, 6 effluent exceedances, latest September 30, 2025.
- Solids, total suspended: 9 limits, 13 violations of any kind, 3 effluent exceedances, latest March 31, 2020, largest 28% over the limit.
- Nitrogen, ammonia total [as N]: 96 limits, 2 violations of any kind, 2 effluent exceedances, latest August 31, 2024, largest 30% over the limit.
- 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; 116 were issued before IA0028975.
Coverages issued nearest IA0028975
- July 1, 2015: CRESTON CITY OF STP, Creston, IA0035238, held by CITY OF CRESTON
- July 1, 2015: KNOXVILLE CITY OF STP, Knoxville, IA0035866, held by CITY OF KNOXVILLE
- July 1, 2015: WESTSIDE CITY OF STP, Westside, IA0040274, held by CITY OF WESTSIDE
- August 1, 2015: HEDRICK CITY OF STP, Hedrick, IA0036498, held by CITY OF HEDRICK
- August 1, 2015: SAVAGE SANITARY DISTRICT STP, Fort Dodge, IA0059200, held by SAVAGE SANITARY DISTRICT
- September 1, 2015: UNION CITY OF STP, Union, IA0034266, held by CITY OF UNION
- September 1, 2015: JOICE, CITY OF STP, Joice, IA0052077, held by JOICE, CITY OF
- September 1, 2015: MOUNT AUBURN CITY OF STP, Mount Auburn, IA0059153, held by CITY OF MOUNT AUBURN
- September 1, 2015: DEEP RIVER, CITY OF STP, Deep River, IA0071943, held by CITY OF DEEP RIVER
- October 1, 2015: MINDEN CITY OF STP, Minden, IA0048330, held by CITY OF MINDEN
BLUE GRASS CITY OF STP among its neighbors
EPA’s permit file holds 10 discharge permits in the Coal Creek-Mississippi River subwatershed (HUC 070801010603), IA0028975 among them. Its county holds 40, 5 of them major permits; IA0028975 is a minor permit.
Other permits in the Coal Creek-Mississippi River subwatershed (HUC 070801010603)
- ANDALUSIA FIRE STATION, Andalusia: ILR10ZERA, minor permit, permit term to August 31, 2028
- BUFFALO, CITY OF MS4, Buffalo: IA0078760, minor permit, permit term to August 31, 2019
- BUFFALO, CITY OF STP, Buffalo: IA0020800, minor permit, permit term to April 30, 2023
- CAMP ABE LINCOLN, Blue Grass: IA0067059, minor permit, permit term to January 31, 2022
- HIDDEN LAKE CAMPGROUND, Taylor Ridge: ILR10ZDB9, minor permit, permit term to August 31, 2028
- ILLINOIS AMERICAN WATER ANDALUSIA STP, Andalusia: IL0021202, minor permit, discharging to MISSISSIPPI RIVER, permit term to February 28, 2023
- RIVERVIEW SUBDIVISION, Muscatine: IA0077453, minor permit, permit term to December 31, 2025
- SNOWSTAR CORPORATION SKI LODGE STP, Andalusia: IL0062839, minor permit, discharging to UNNAMED TRIBUTARY OF COAL CREEK, permit term to November 30, 2021
- SSAB IOWA INC., Muscatine: IA0074101, minor permit, permit term to August 31, 2024
Identity
| Facility as filed | BLUE GRASS CITY OF STP |
|---|---|
| Permittee as filed | CITY OF BLUE GRASS |
| NPDES ID | IA0028975 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 1, 2015 |
| Expiration date | August 31, 2020 |
| Issuing agency | STA |
| Address | Blue Grass, IA 52726 |
| Subwatershed | Coal Creek-Mississippi River (HUC 070801010603) |
Effluent limits and exceedances
- 9Pollutants on file
- 9Under a numeric limit
- 5With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 4 | 49 | 44 | June 30, 2025 | 59% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 18 | 10 | April 30, 2025 | 43% over the limit |
| pH | 5 | 11 | 6 | September 30, 2025 | |
| Solids, total suspended | 9 | 13 | 3 | March 31, 2020 | 28% over the limit |
| Nitrogen, ammonia total [as N] | 96 | 2 | 2 | August 31, 2024 | 30% over the limit |
| 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 IA0028975.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0028975.
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 IA0028975.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.