Clean Water Act discharge permit · NPDES MTR108258
O'KEEFE RANCH ESTATES SUBDIVISION, Missoula, MT: NPDES MTR108258 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
O'KEEFE RANCH ESTATES SUBDIVISION, held by Ryan Built Homes LLC, holds NPDES permit MTR108258, which discharges to O'Keefe Creek. EPA’s file records it issued March 10, 2021 and expiring December 31, 2022. 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 | O'KEEFE RANCH ESTATES SUBDIVISION |
|---|---|
| Permittee as filed | Ryan Built Homes LLC |
| NPDES ID | MTR108258 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | March 10, 2021 |
| Expiration date | December 31, 2022 |
| Address | Missoula, MT 59808 |
| Receiving water | O'KEEFE CREEK |
| Subwatershed | O'Keefe Creek (HUC 170102040204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR108258.
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 |
|---|---|---|
| July 26, 2023 | WW Storm Water Construction - Failure to Maintain Records | ST6 |
| July 26, 2023 | WW Storm Water Construction - Failure to properly install/implement BMPs | ST6 |
| July 26, 2023 | WW Storm Water Construction - Failure to Conduct Inspections | ST6 |
| July 26, 2023 | WW Storm Water Construction - Failure to properly operate and maintain BMPs | 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.
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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 MTR108258 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.