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Clean Water Act discharge permit · NPDES MTR111831

KENYON NOBLE, Bozeman, MT: NPDES MTR111831 discharge permit, effluent exceedances, inspections, penalties

KENYON NOBLE, held by HOFFMANS R AND M SERVICES INC, holds NPDES permit MTR111831, which discharges to Mammoth Ditch. EPA’s file records it issued May 13, 2026 and expiring December 31, 2027. 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.

What the register holds for KENYON NOBLE: its NPDES ID, its permit type and status, its dates, its address in Bozeman, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111831.

Identity

Facility as filedKENYON NOBLE
Permittee as filedHOFFMANS R AND M SERVICES INC
NPDES IDMTR111831
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 13, 2026
Expiration dateDecember 31, 2027
AddressBozeman, MT 59718
Receiving waterMAMMOTH DITCH
SubwatershedEast Gallatin River-Belgrade (HUC 100200081302)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111831.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR111831.

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 MTR111831 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The KENYON NOBLE storm water construction permit, filed under the permittee HOFFMANS R AND M SERVICES INC, is one of 600 storm water construction permits on EPA's NPDES register in Gallatin County, and it sits among 79 NPDES permits in the East Gallatin River-Belgrade subwatershed, this one included. Of the 579 storm water construction permits in Gallatin County, 93.3% carry an earlier issue date than this one, and 6.0% of the 600 Gallatin County storm water construction permits have a violation on file, while this permit itself has no pollutants under a numeric limit and no pollutants with an effluent exceedance.