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Clean Water Act discharge permit · NPDES MTR104703

CMG CONSTRUCTION - HARDIN SID 120, Hardin, MT: NPDES MTR104703 discharge permit, effluent exceedances, inspections, penalties

CMG CONSTRUCTION - HARDIN SID 120, held by CMG CONSTRUCTION INC, holds NPDES permit MTR104703, which discharges to Existing Drainage Easement. EPA’s file records it issued September 6, 2012 and expiring December 31, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for CMG CONSTRUCTION - HARDIN SID 120: its NPDES ID, its permit type and status, its dates, its address in Hardin, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR104703.

Identity

Facility as filedCMG CONSTRUCTION - HARDIN SID 120
Permittee as filedCMG CONSTRUCTION INC
NPDES IDMTR104703
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
IssuedSeptember 6, 2012
Expiration dateDecember 31, 2012
Issuing agencyMONTANA DEQ
AddressHardin, MT 59034
Receiving waterEXISTING DRAINAGE EASEMENT
SubwatershedBighorn River-Hardin (HUC 100800150704)
SIC1611 – Highway And Street Construction

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR104703.

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 MTR104703.

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, MTR104703.

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How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 MTR104703 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The CMG CONSTRUCTION - HARDIN SID 120 storm water construction permit, MTR104703, is one of 29 such permits in Big Horn County, Montana, and none of those 29 has a violation on file (0.0%). Among the 24 storm water construction permits in the county, 25.0% were issued earlier than this one, which was issued September 6, 2012.