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Clean Water Act discharge permit · NPDES MTR104533

CMG CONSTRUCTION - WESTERN RANCH SUPPLY, Billings, MT: NPDES MTR104533 discharge permit, effluent exceedances, inspections, penalties

CMG CONSTRUCTION - WESTERN RANCH SUPPLY, held by CMG CONSTRUCTION INC, holds NPDES permit MTR104533, which discharges to Roadside Ditches. EPA’s file records it issued May 8, 2012 and expiring September 30, 2012. 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 CMG CONSTRUCTION - WESTERN RANCH SUPPLY: its NPDES ID, its permit type and status, its dates, its address in Billings, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR104533.

Identity

Facility as filedCMG CONSTRUCTION - WESTERN RANCH SUPPLY
Permittee as filedCMG CONSTRUCTION INC
NPDES IDMTR104533
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 8, 2012
Expiration dateSeptember 30, 2012
Issuing agencyMONTANA DEQ
AddressBillings, MT 59106
Receiving waterROADSIDE DITCHES
SubwatershedYellowstone River-Billings (HUC 100700041006)

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 MTR104533.

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 MTR104533.

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, MTR104533.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • 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 MTR104533 there.

Nearby on the register

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

What this page shows

The CMG CONSTRUCTION - WESTERN RANCH SUPPLY permit is one of 262 storm water construction permits in Yellowstone County on EPA's NPDES register, and it sits within a subwatershed that holds 157 NPDES permits, this one included. Among the 253 storm water construction permits in the county, 12.3% carry an earlier issue date than this one, and the permit has no pollutants under a numeric limit and no effluent exceedances on file.