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Clean Water Act discharge permit · NPDES MTR111821

NEW STORE FOR ZIP TRIP, Missoula, MT: NPDES MTR111821 discharge permit, effluent exceedances, inspections, penalties

NEW STORE FOR ZIP TRIP, held by GRANT CREEK EXCAVATING LLC, holds NPDES permit MTR111821, which discharges to Grant Creek. EPA’s file records it issued May 27, 2026 and expiring December 31, 2027.

NEW STORE FOR ZIP TRIP, Missoula, Montana: Coverage under a general permit MTR111821, held by GRANT CREEK EXCAVATING LLC; Construction stormwater; Effective; issued May 27, 2026, term to December 31, 2027; discharges to GRANT CREEK.

Montana holds 2,848 Construction stormwater coverages of this permit type in EPA’s file; 2,530 were issued before MTR111821. GRANT CREEK EXCAVATING LLC holds 7 permits in Montana.

Other permits held by GRANT CREEK EXCAVATING LLC

Coverages issued nearest MTR111821

NEW STORE FOR ZIP TRIP among its neighbors

EPA’s permit file holds 37 discharge permits in the Grant Creek subwatershed (HUC 170102040103), MTR111821 among them. Its county holds 284, 3 of them major permits; MTR111821 is a minor permit.

Other permits in the Grant Creek subwatershed (HUC 170102040103)

  • 44 RANCH SUBDIVISION PHASE 12-14, Missoula: MTR109048, minor permit, discharging to GRANT CREEK, permit term to December 31, 2022
  • 44 RANCH SUBDIVISION PHASE 7C, Missoula: MTR106491, minor permit, discharging to MIDDLE CLARK FORK, permit term to December 31, 2017
  • B & E CORP. - WINDSOR PARK PHASE III, Missoula: MTR102101, minor permit, discharging to DITCH, permit term to December 31, 2006
  • BROADWAY FLATS/ MISSOULA LOFTS, Missoula: MTR111696, minor permit, discharging to GRANT CREEK, permit term to December 31, 2027
  • CITY OF MISSOULA SMALL MS4, Missoula: MTR040007, minor permit, discharging to CLARK FORK RIVER, permit term to December 31, 2021
  • COTTAGES SOUTH, Missoula: MTR106795, minor permit, discharging to MIDDLE CLARK FORK, permit term to December 31, 2017
  • FEDEX FACILITY, Missoula: MTR106879, minor permit, discharging to Middle Clark Fork, permit term to December 31, 2017
  • GENERAL OFFICE BUILDING (GOB), Missoula: MTR111645, minor permit, discharging to GRANT CREEK, permit term to December 31, 2027
  • GENSCO PROJECT, Missoula: MTR106914, minor permit, discharging to Middle Clark Fork, permit term to December 31, 2017
  • GRANT CREEK CROSSING, Missoula: MTR111879, minor permit, discharging to GRANT CREEK, permit term to December 31, 2027

What the register holds for NEW STORE FOR ZIP TRIP: 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 MTR111821.

Identity

Facility as filedNEW STORE FOR ZIP TRIP
Permittee as filedGRANT CREEK EXCAVATING LLC
NPDES IDMTR111821
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 27, 2026
Expiration dateDecember 31, 2027
AddressMissoula, MT 59808
Receiving waterGRANT CREEK
SubwatershedGrant Creek (HUC 170102040103)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111821.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR111821.

Inspections

EPA’s inspection file holds no inspection for NPDES MTR111821.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MTR111821.

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, MTR111821.

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Nearby on the register

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

What this page shows

Among the 206 storm water construction permits on EPA's NPDES register in Missoula County, this one, filed as NEW STORE FOR ZIP TRIP and held by GRANT CREEK EXCAVATING LLC, is one of the 194 storm water construction permits in the county, and 91.8% of those 194 carry an earlier issue date than its May 27, 2026 issue date. The permit sits in the Grant Creek subwatershed, which holds 37 NPDES permits on the register including this one, and 13.1% of the county's 206 storm water construction permits have a violation on file, while this permit has none of the recorded pollutants with a numeric limit or effluent exceedance.