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Clean Water Act discharge permit · NPDES MTR000753

DARBY SITE, Darby, MT: NPDES MTR000753 discharge permit, effluent exceedances, inspections, penalties

DARBY SITE, held by RBC Sand & Gravel Inc., holds NPDES permit MTR000753, which discharges to Bitterroot River. 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 DARBY SITE: its NPDES ID, its permit type and status, its its address in Darby, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR000753.

Identity

Facility as filedDARBY SITE
Permittee as filedRBC Sand & Gravel Inc.
NPDES IDMTR000753
Permit statusNot needed
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
AddressDarby, MT 59829
Receiving waterBITTERROOT RIVER
SubwatershedBitterroot River-Darby (HUC 170102050806)

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 MTR000753.

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 MTR000753.

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, MTR000753.

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How we handle your data → Privacy

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 MTR000753 there.

Nearby on the register

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

What this page shows

The DARBY SITE permit, held by RBC Sand & Gravel Inc. under NPDES ID MTR000753, is one of 15 storm water industrial permits on EPA's NPDES register in Ravalli County, and 46.7% of those 15 have a violation on file. It is also one of 6 NPDES permits in the Bitterroot River-Darby subwatershed, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance.