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Clean Water Act discharge permit · NPDES MTR107082

SIMMS WASTEWATER, Simms, MT: NPDES MTR107082 discharge permit, effluent exceedances, inspections, penalties

SIMMS WASTEWATER, held by WILLIAMS CIVIL CONSTRUCTION, holds NPDES permit MTR107082, which discharges to Sun. EPA’s file records it issued October 3, 2017 and expiring December 31, 2017. 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 SIMMS WASTEWATER: its NPDES ID, its permit type and status, its dates, its address in Simms, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR107082.

Identity

Facility as filedSIMMS WASTEWATER
Permittee as filedWILLIAMS CIVIL CONSTRUCTION
NPDES IDMTR107082
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
IssuedOctober 3, 2017
Expiration dateDecember 31, 2017
Issuing agencyMT DEQ
AddressSimms, MT 59477
Receiving waterSUN
SubwatershedSun River-Simms (HUC 100301040708)
SIC1794 – Excavation Work

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 MTR107082.

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 MTR107082.

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, MTR107082.

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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 MTR107082 there.

Nearby on the register

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

What this page shows

SIMMS WASTEWATER, a Storm Water Construction general permit coverage held by WILLIAMS CIVIL CONSTRUCTION, is one of 3 NPDES permits in the Sun River-Simms subwatershed. It also sits among 132 storm water construction permits on EPA's NPDES register in Cascade County, where 6.8% of such permits carry a violation on file. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.