Clean Water Act discharge permit · NPDES MTR108807

POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS, Polson, MT: NPDES MTR108807 discharge permit, effluent exceedances, inspections, penalties

Not neededPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS, held by WESTERN MUNICIPAL CONSTRUCTION INC, holds NPDES permit MTR108807, which discharges to Flathead Lake.

POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS, Polson, Montana: Coverage under a general permit MTR108807, held by WESTERN MUNICIPAL CONSTRUCTION INC; Construction stormwater; Not needed; discharges to FLATHEAD LAKE.

Montana holds 2,848 Construction stormwater coverages of this permit type in EPA’s file. WESTERN MUNICIPAL CONSTRUCTION INC holds 19 permits in Montana.

Other permits held by WESTERN MUNICIPAL CONSTRUCTION INC

WESTERN MUNICIPAL CONSTRUCTION - EMMANUEL BAPTIST CHURCH SEWER EXTENSION, Billings: MTG070622
WESTERN MUNICIPAL CONSTR - LOCKWOOD WATER AND SEWER, Billings: MTG070691
W.O. 15-35:ZONE 1 WTP WATERLINE IMPROVEMENTS, Billings: MTG070972, issued February 3, 2020
POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS, Polson: MTG071058
CITY OF BILLINGS W.O. 20-01 PHASE 2 SANITARY SEWER INTERCEPTOR REPLACEMENT, Billings: MTG071111
MILES CITY - CCWSD FIRE HYDRANT (S. HAYNES AVE), Miles City: MTG071112
W.O. 26-01 - CITY OF BILLINGS - SEWER MAIN REPLACEMENTS, Billings: MTG071464, issued July 21, 2026
BAKER LAKE CLEAN-UP PROJECT, Baker: MTR107051, issued September 6, 2017
LOCKWOOD INTAKE AND WATER TREATMENT PLANT, Billings: MTR107107, issued November 15, 2017
CITY OF BILLINGS - W.O. 22-10 ALKALI CREEK WATER & SEWER EXTENSION, Billings: MTR109449, issued March 31, 2022

POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS among its neighbors

EPA’s permit file holds 15 discharge permits in the Polson subwatershed (HUC 170102080404), MTR108807 among them. Its county holds 28, 0 of them major permits; MTR108807 is a permit EPA has not classed major or minor.

Other permits in the Polson subwatershed (HUC 170102080404)

CITY OF POLSON 17TH ST E STREET IMPROVEMENTS, Polson: MTR10I04E, minor permit, permit term to February 16, 2027
CITY OF POLSON STREET IMPROVEMENTS, Polson: MTR10I04O, not classed
CITY OF POLSON WWTP, Polson: MT0020559, minor permit, discharging to FLATHEAD RIVER, permit term to December 31, 2017
KELLER TRANSPORT, INC., Polson: MT0030805, minor permit, permit term to June 30, 2023
LAKE COUNTY LANDFILL, Polson: MTR106683, not classed
LAKE COUNTY LANDFILL, Polson: MTR10I063, minor permit, permit term to February 16, 2027
LIONHART STORAGE, LLC, Polson: MTR10I05Q, minor permit, permit term to February 16, 2027
LOWEL TYLER VET CLINIC, Polson: MTR10I03C, not classed
PARADISE COVE RV CONDOMINIUM COMMUNITY, Polson: MTX000183, not classed, discharging to FLATHEAD LAKE & HELL ROARING CREEK
POLSON GARDENS, Polson: MTR10I05V, minor permit, permit term to February 16, 2027

What the register holds for POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS: its NPDES ID, its permit type and status, its its address in Polson, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR108807.

Identity

Facility as filed	POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS
Permittee as filed	WESTERN MUNICIPAL CONSTRUCTION INC
NPDES ID	MTR108807
Permit status	Not needed
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Address	Polson, MT 59860
Receiving water	FLATHEAD LAKE
Subwatershed	Polson (HUC 170102080404)

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR108807.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR108807.

Inspections

EPA’s inspection file holds no inspection for NPDES MTR108807.

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 MTR108807.

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, MTR108807.

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Nearby on the register

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

The POLSON SEWER COLLECTION SYSTEM IMPROVEMENTS permit, held by WESTERN MUNICIPAL CONSTRUCTION INC for the city of Polson in Lake County, Montana, is one of 10 storm water construction permits on EPA's NPDES register for that county, this one included. Among those 10 permits, 10.0% have a violation on file, and the permit sits within a set of 15 NPDES permits in the Polson subwatershed, this one included. The permit records no pollutants under a numeric limit and no pollutants with an effluent exceedance.