Velarion Records

Clean Water Act discharge permit · NPDES MTR000930

MONTANA LIMESTONE COMPANY WARREN QUARRY, PROCESSING FACILITY AND RAIL LOADOUT, Warren, MT: NPDES MTR000930 discharge permit, effluent exceedances, inspections, penalties

MONTANA LIMESTONE COMPANY WARREN QUARRY, PROCESSING FACILITY AND RAIL LOADOUT, held by Montana Limestone Company, holds NPDES permit MTR000930, which discharges to Sage Creek. 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 LIMESTONE COMPANY WARREN QUARRY, PROCESSING FACILITY AND RAIL LOADOUT: its NPDES ID, its permit type and status, its its address in Warren, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR000930.

Identity

Facility as filedMONTANA LIMESTONE COMPANY WARREN QUARRY, PROCESSING FACILITY AND RAIL LOADOUT
Permittee as filedMontana Limestone Company
NPDES IDMTR000930
Permit statusPending
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
AddressWarren, MT 59014
Receiving waterSAGE CREEK
SubwatershedSage Creek-Piney Creek (HUC 100800140404)

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 MTR000930.

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 MTR000930.

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, MTR000930.

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  • One state — $4,990/year
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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 MTR000930 there.

Nearby on the register

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

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