Clean Water Act discharge permit · NPDES MOR04C084
PLATTE COUNTY PHASE II MS4, Platte City, MO: NPDES MOR04C084 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
PLATTE COUNTY PHASE II MS4, held by Platte County, holds NPDES permit MOR04C084, which discharges to Prairie Creek. EPA’s file records it issued March 1, 2022 and expiring September 30, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | PLATTE COUNTY PHASE II MS4 |
|---|---|
| Permittee as filed | Platte County |
| NPDES ID | MOR04C084 |
| 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 | March 1, 2022 |
| Expiration date | September 30, 2026 |
| Address | Platte City, MO 64079 |
| Receiving water | Prairie Creek |
| Subwatershed | Brush Creek (HUC 102400110603) |
| SIC | 9511 – Air, Water, & Solid Waste Management |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 1Pollutants on file
- 1Under a numeric limit
- 1With a violation of any kind
- 1With 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 | 6 | 2 | January 31, 2024 |
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
- 4Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 17, 2026 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
| June 17, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| June 24, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 13, 2023 | 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOR04C084.
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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 MOR04C084 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.