Clean Water Act discharge permit · NPDES MOR04C088
OAK GROVE PHASE II MS4, Oak Grove, MO: NPDES MOR04C088 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
OAK GROVE PHASE II MS4, held by City of Oak Grove, holds NPDES permit MOR04C088, which discharges to Tributary To Horseshoe Cr.. EPA’s file records it issued July 1, 2022 and expiring September 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | OAK GROVE PHASE II MS4 |
|---|---|
| Permittee as filed | City of Oak Grove |
| NPDES ID | MOR04C088 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Small municipal storm sewer systems |
| Issued | July 1, 2022 |
| Expiration date | September 30, 2026 |
| Address | Oak Grove, MO 64075 |
| Receiving water | Tributary to Horseshoe Cr. |
| Subwatershed | Horseshoe Creek-Sni-A-Bar Creek (HUC 103001010504) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 1Pollutants on file
- 1Under a numeric limit
- 1With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Report due [yrmoda] | 1 | 2 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MOR04C088.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 25, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| June 24, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MOR04C088 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.