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Clean Water Act discharge permit · NPDES MTR107056

WILLARD ALTERNATIVE HIGH SCHOOL, Missoula, MT: NPDES MTR107056 discharge permit, effluent exceedances, inspections, penalties

WILLARD ALTERNATIVE HIGH SCHOOL, held by SLETTEN CONSTRUCTION COMPANY, holds NPDES permit MTR107056, which discharges to Middle Clark Fork. EPA’s file records it issued September 7, 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 WILLARD ALTERNATIVE HIGH SCHOOL: its NPDES ID, its permit type and status, its dates, its address in Missoula, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR107056.

Identity

Facility as filedWILLARD ALTERNATIVE HIGH SCHOOL
Permittee as filedSLETTEN CONSTRUCTION COMPANY
NPDES IDMTR107056
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 7, 2017
Expiration dateDecember 31, 2017
Issuing agencyMT DEQ
AddressMissoula, MT 59801
Receiving waterMiddle Clark Fork
SubwatershedClark Fork River-Marshall Creek (HUC 170102040104)
SIC1542 – Nonresidential 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 MTR107056.

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 MTR107056.

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, MTR107056.

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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 MTR107056 there.

Nearby on the register

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

What this page shows

Among the 206 storm water construction permits in Missoula County, 13.1% have a violation on file. The Clark Fork River-Marshall Creek subwatershed holds 82 NPDES permits, including WILLARD ALTERNATIVE HIGH SCHOOL, and 34.0% of the 194 permits in Missoula County were issued before it.