Clean Water Act discharge permit · NPDES MO0000043
AMEREN MISSOURI - RUSH ISLAND POWER, Festus, MO: NPDES MO0000043 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 28Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
AMEREN MISSOURI - RUSH ISLAND POWER, held by Ameren Missouri, holds NPDES permit MO0000043, which discharges to Tributary To Mississippi R.. EPA’s file records it issued February 22, 2019 and expiring February 29, 2024.
AMEREN MISSOURI - RUSH ISLAND POWER, Festus, Missouri: Individual permit MO0000043, held by Ameren Missouri; Industrial stormwater; Effective; issued February 22, 2019, term to February 29, 2024; discharges to Tributary to Mississippi R..
- Solids, total suspended: 18 limits, 12 violations of any kind, 10 effluent exceedances, latest November 30, 2024, largest 318% over the limit.
- Thermal Discharge: 2 limits, 138 violations of any kind, 2 effluent exceedances, latest April 30, 2005, largest 1% over the limit.
- E. coli: 2 limits, 2 violations of any kind, 2 effluent exceedances, latest December 31, 2023, largest 224% over the limit.
- pH: 10 limits, 7 violations of any kind, 1 effluent exceedance, latest May 31, 2025.
- Oil and grease [soxhlet extr.] tot.: 8 limits, 4 violations of any kind, 0 effluent exceedances.
- Toxicity [chronic], Ceriodaphnia dubia: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Toxicity [chronic], Pimephales promelas [Fathead Minnow]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 22 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 12 limits, 0 violations of any kind, 0 effluent exceedances.
- Oxygen demand, chem. [high level] [COD]: 8 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 6 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Sulfate, total [as SO4]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Boron, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Aluminum, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Molybdenum, total recoverable: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Temp. diff. between up/down stream deg. F: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Chloride: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Chlorides + Sulfates: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Month excursion time [min]: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow rate: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Thermal Discharge: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, process wastewater: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- October 3, 2024: Reporting Violations - Improper/ Incorrect Reporting (ST6).
Missouri holds 210 Industrial stormwater coverages of this permit type in EPA’s file; 139 were issued before MO0000043. Ameren Missouri holds 15 permits in Missouri.
Other permits held by Ameren Missouri
- AMEREN - SIOUX (WEST ALTON ENERGY CTR), West Alton: MO0000353, issued April 1, 2017
- AMEREN MISSOURI - TAUM SAUK ENERGY CTR., Annapolis: MO0001082, issued January 1, 2020
- AMEREN MISSOURI - OSAGE ENERGY CENTER, Lake Ozark: MO0004821, issued August 14, 2017
- AMEREN MISSOURI - AUDRAIN ENERGY CENTER, Vandalia: MOG140056, issued August 1, 2019
- AMEREN MISSOURI, St. Louis: MOG870008, issued July 10, 2017
- BUGLE SUBSTATION, St Louis: MORA19851, issued February 17, 2022
- FREDERICKTOWN RING BUS, Fredericktown: MORA19855, issued February 17, 2022
- CAPE SWITCHING STATION, Cape Girardeau: MORA21316, issued April 25, 2022
- AMEREN MISSOURI - COMSTOCK SUB, Sikeston: MORA21901, issued June 27, 2022
- ST. FRANCOIS OPERATING CENTER, Park Hills: MORA21931, issued June 30, 2022
Coverages issued nearest MO0000043
- October 23, 2018: NORTHROP GRUMMAN SYSTEMS CORPORATION, Springfield, MO0115690, held by Northrop Grumman Corporation
- December 19, 2018: FOSTER SOUTH MINE, Foster, MO0138061, held by Continental Coal Inc
- January 1, 2019: MAGELLAN PIPELINE COMPANY-MT. VERNON, Mount Vernon, MO0120669, held by Transmontaigne Operating Company LP
- January 30, 2019: AVCRAD - ARMY NATIONAL GUARD AIR MAINT., Springfield, MO0134627, held by MOARNG Environmental Management Office
- February 5, 2019: ST. FRANCIS POWER PLANT, Campbell, MO0121827, held by Associated Electric Cooperative, Inc.
- February 25, 2019: BASF HANNIBAL PLANT, Palmyra, MO0001716, held by BASF Corporation
- February 27, 2019: MISSOURI CITY POWER STATION - CLOSED, Missouri City, MO0004588, held by Missouri City Acquisition, LLC
- April 1, 2019: OZORA TRUCK AND TRAVEL SERVICES WWTF, Ste. Genevieve, MO0125920, held by E.L. Schweigert Family Farm, L.L.C.
- May 3, 2019: MDNR ST. JOE STATE PARK, Park Hills, MO0097993, held by MDNR St. Joe State Park
- May 3, 2019: FORMER KOPPERS FACILITY, Kansas City, MO0120294, held by BEAZER EAST, INC.
AMEREN MISSOURI - RUSH ISLAND POWER among its neighbors
EPA’s permit file holds 14 discharge permits in the Old Maeystown Creek-Mississippi River subwatershed (HUC 071401010904), MO0000043 among them. Its county holds 475, 6 of them major permits; MO0000043 is a major permit.
Other permits in the Old Maeystown Creek-Mississippi River subwatershed (HUC 071401010904)
- ARCH JOHNSTON COMPANY INC, Festus: MOG490744, minor permit, discharging to Tributary to Muddy Creek, permit term to April 30, 2022
- FESTUS FUEL AND FOOD MART WWTF, Festus: MO0093343, minor permit, discharging to Tributary to Mississippi River, permit term to June 30, 2022
- HARLOW ISLAND, Festus: MORA27186, minor permit, discharging to Tributary to Mississippi R., permit term to February 7, 2027
- JEFFERSON R7 HIGH SCHOOL, Festus: MORA29937, minor permit, discharging to Tributary to Muddy Creek, permit term to February 7, 2027
- PLATTIN PRIMARY SCHOOL WWTP, Festus: MO0091057, minor permit, discharging to Tributary to Conservation Club Lake, permit term to June 30, 2022
- RED E MIX TRANSPORTATION LLC, Festus: MOR80C579, minor permit, discharging to Tributary to Mississippi R., permit term to November 30, 2022
- RED-E MIX TRANSPORTATION, Festus: MOR80C485, minor permit, discharging to Mississippi R., permit term to October 4, 2012
- RIVER CEMENT CO DBA BUZZI UNICEM USA, Festus: MORA27425, minor permit, discharging to Tributary to Mississippi R., permit term to February 7, 2027
- RIVER CEMENT COMPANY DBA BUZZI UNICEM US, Festus: MO0000035, minor permit, discharging to Tributary to Mississippi R., permit term to June 30, 2022
- RIVER CEMENT COMPANY DBA BUZZI UNICEM US, Festus: MORA23495, minor permit, discharging to Saline Creek, permit term to February 7, 2027
Identity
| Facility as filed | AMEREN MISSOURI - RUSH ISLAND POWER |
|---|---|
| Permittee as filed | Ameren Missouri |
| NPDES ID | MO0000043 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | February 22, 2019 |
| Expiration date | February 29, 2024 |
| Address | Festus, MO 63028 |
| Receiving water | Tributary to Mississippi R. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Old Maeystown Creek-Mississippi River (HUC 071401010904) |
| Other EPA IDs (FRS) | RCRA handler MOD079888871; ICIS-AIR source MO0000002909900180 |
Effluent limits and exceedances
- 28Pollutants on file
- 28Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 18 | 12 | 10 | November 30, 2024 | 318% over the limit |
| Thermal Discharge | 2 | 138 | 2 | April 30, 2005 | 1% over the limit |
| E. coli | 2 | 2 | 2 | December 31, 2023 | 224% over the limit |
| pH | 10 | 7 | 1 | May 31, 2025 | |
| Oil and grease [soxhlet extr.] tot. | 8 | 4 | 0 | ||
| Toxicity [chronic], Ceriodaphnia dubia | 2 | 2 | 0 | ||
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | 2 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 22 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 12 | 0 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 8 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 6 | 0 | 0 | ||
| Nitrogen, total [as N] | 4 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 4 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Sulfate, total [as SO4] | 4 | 0 | 0 | ||
| Iron, total recoverable | 4 | 0 | 0 | ||
| Boron, total recoverable | 4 | 0 | 0 | ||
| Aluminum, total recoverable | 4 | 0 | 0 | ||
| Molybdenum, total recoverable | 4 | 0 | 0 | ||
| Temp. diff. between up/down stream deg. F | 4 | 0 | 0 | ||
| Chloride | 4 | 0 | 0 | ||
| Chlorides + Sulfates | 4 | 0 | 0 | ||
| Month excursion time [min] | 3 | 0 | 0 | ||
| Flow rate | 2 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Thermal Discharge | 2 | 0 | 0 | ||
| Flow, process wastewater | 2 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 3, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES MO0000043.
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 MO0000043.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.