Clean Water Act discharge permit · NPDES MTR108235

SILVERBROOK ESTATES PHASE 2B, Kalispell, MT: NPDES MTR108235 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

SILVERBROOK ESTATES PHASE 2B, held by LHC INC, holds NPDES permit MTR108235, which discharges to Stillwater River. EPA’s file records it issued February 13, 2020 and expiring December 31, 2022.

SILVERBROOK ESTATES PHASE 2B, Kalispell, Montana: Coverage under a general permit MTR108235, held by LHC INC; Construction stormwater; Effective; issued February 13, 2020, term to December 31, 2022; discharges to STILLWATER RIVER.

Montana holds 2,848 Construction stormwater coverages of this permit type in EPA’s file; 1,299 were issued before MTR108235. LHC INC holds 36 permits in Montana.

Other permits held by LHC INC

LHC SPANISH PEAKS CONCRETE BATCH PLANT, Cameron: MTR000647, issued January 11, 2019
MDOT - RR OVERPASS MT STPS 213 CONSTRUCTION AREA, Cut Bank: MTR104139, issued June 3, 2011
LHC INC MT-NH 15(73)RESERVE DRIVE SOUTH, Kalispell: MTR104341, issued November 7, 2011
LHC INC STPU 5799(24)BLVD AVE, Havre: MTR104574, issued June 4, 2012
KBP-WASTE/STAGING, Kalispell: MTR106252, issued October 6, 2015
USFS ACCESSORY BUILDING, Kalispell: MTR106687, issued October 27, 2016
KALISPELL NORTH TOWN CENTER PHASE 1, Kalispell: MTR106764, issued February 9, 2017
GREEN NISSAN/HYUNDAI, Kalispell: MTR106871, issued May 1, 2017
KIDS SPORTS ADDITIONAL INFRASTRUCTURE IMPROVEMENTS, Kalispell: MTR106878, issued May 4, 2017
JCT US 2 NORTH OF CHESTER STPS 409-1(8)0, Chester: MTR106888, issued May 11, 2017

Coverages issued nearest MTR108235

November 18, 2019: HARLOWTON MILWAUKEE ROUNDHOUSE, Harlowton, MTR108155, held by CITY OF HARLOWTON
November 25, 2019: CORRAL CREEK - 11 M NE CIRCLE, Circle, MTR108164, held by Montana Department of Transportation
December 6, 2019: 9387001: US-191 SLIDE-N OF DY JUNCTION, Zortman, MTR10I02J, held by Montana Department of Transportation
December 29, 2019: FT PECK WEST BRANCHLINES PROJECT – PHASE 1, Wolf Point, MTR10I02M, held by Macon Construction Co.
January 13, 2020: EAGLE VALLEY RANCH, Kalispell, MTR108196, held by LHC INC
February 18, 2020: BORDER CROSSING, Whitewater, MTR108222, held by TRANSCANADA KEYSTONE PIPELINE LP
February 18, 2020: SOUTH BEND 16-INCH CRUDE OIL PIPELINE, Wibaux, MTR108229, held by Bridger Pipeline LLC
February 18, 2020: JUNCTION S - 437 - N & S, Toston, MTR108236, held by Montana Department of Transportation
February 28, 2020: HELLGATE VILLAGE SUBDIVISION, Missoula, MTR108262, held by GRANT CREEK EXCAVATING LLC
March 11, 2020: YELLOWSTONE PARK, West Yellowstone, MTR108273, held by Montana Department of Transportation

SILVERBROOK ESTATES PHASE 2B among its neighbors

EPA’s permit file holds 60 discharge permits in the Stillwater River-Beaver Creek subwatershed (HUC 170102100403), MTR108235 among them. Its county holds 336, 3 of them major permits; MTR108235 is a minor permit.

Other permits in the Stillwater River-Beaver Creek subwatershed (HUC 170102100403)

AFFINITY APARTMENTS AT KALISPELL, Kalispell: MTR111229, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2027
APPLIED MATERIALS - SEMITOOL - MAIN PLANT, Kalispell: MTR000568, minor permit, discharging to STILLWATER RIVER, permit term to January 31, 2023
BLOOMESTONE PHASES 4,5, & 6, Kalispell: MTR110450, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2027
BLOOMSTONE DEVELOPMENT, Kalispell: MTR107111, minor permit, discharging to Stillwater, permit term to December 31, 2017
BLOOMSTONE DEVELOPMENT, Kalispell: MTR108892, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2022
BRIGHT VIEW SUBDIVISION PH 2, Kalispell: MTR107579, minor permit, discharging to BEAVER CREEK, permit term to December 31, 2022
BUFFALO HILL GOLF COURSE, Kalispell: MTR111583, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2027
CITY OF KALISPELL LOWER ZONE DRINKING WATER TANK DRAIN LINE, Kalispell: MTG770029, minor permit, discharging to STILLWATER RIVER, permit term to May 31, 2015
COK TANK REPLACEMENT, Kalispell: MTR111611, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2027
CORWIN RECON SHOP, Kalispell: MTR111408, minor permit, discharging to STILLWATER RIVER, permit term to December 31, 2027

What the register holds for SILVERBROOK ESTATES PHASE 2B: its NPDES ID, its permit type and status, its dates, its address in Kalispell, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR108235.

Identity

Facility as filed	SILVERBROOK ESTATES PHASE 2B
Permittee as filed	LHC INC
NPDES ID	MTR108235
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	February 13, 2020
Expiration date	December 31, 2022
Address	Kalispell, MT 59901
Receiving water	STILLWATER RIVER
Subwatershed	Stillwater River-Beaver Creek (HUC 170102100403)
SIC	1623 – Water, Sewer, And Utility Lines

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 MTR108235.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR108235.

Inspections

EPA’s inspection file holds no inspection for NPDES MTR108235.

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 MTR108235.

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, MTR108235.

Start the watch

How we handle your data → Privacy

Nearby on the register

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

SILVERBROOK ESTATES PHASE 2B is one of 220 storm water construction permits in Flathead County, Montana, on EPA's NPDES register. It sits within the Stillwater River-Beaver Creek subwatershed, where 60 NPDES permits, this one included, are listed. Of the 211 storm water construction permits in Flathead County, this one included, 38.9% carry an earlier issue date than this permit, and none of its pollutants are under a numeric limit or show an effluent exceedance.