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Clean Water Act discharge permit · NPDES MTR111933

MONTANA VALLEY IRRIGATION, Missoula, MT: NPDES MTR111933 discharge permit, effluent exceedances, inspections, penalties

MONTANA VALLEY IRRIGATION, held by RNR Properties, LLC, holds NPDES permit MTR111933, which discharges to Grass Valley French Ditch. EPA’s file records it issued July 21, 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 MONTANA VALLEY IRRIGATION: its NPDES ID, its permit type and status, its dates, its address in Missoula, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111933.

Identity

Facility as filedMONTANA VALLEY IRRIGATION
Permittee as filedRNR Properties, LLC
NPDES IDMTR111933
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJuly 21, 2026
Expiration dateDecember 31, 2027
AddressMissoula, MT 59808
Receiving waterGRASS VALLEY FRENCH DITCH
SubwatershedLa Valle Creek (HUC 170102040202)

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 MTR111933.

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 MTR111933.

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 MTR111933 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MTR111933, held by RNR Properties, LLC for MONTANA VALLEY IRRIGATION in Missoula, MT, with its receiving water listed as GRASS VALLEY FRENCH DITCH. The page lists a permit status of Effective, a discharger class of Minor discharger, 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and program type Construction stormwater.