EPA · discharge permits by watershed

Subbasin 10030101

291Current permits
1States
11Watersheds

A subbasin is a unit of the national Watershed Boundary Dataset, and water crosses state lines: this one carries permits in Montana. Each permit is placed by the outfall EPA names as its representative discharge point.

By state

Montana282

Watersheds inside this subbasin

Permits discharging here

Permit holder	NPDES ID	City	State	Program	Discharger	Receiving water
PALEO SEARCH INC - SUCTION DREDGE PROJECT	MT0025020	HELENA	MT		Major	MISSOURI RIVER
46 DEGREES NORTH SUBDIVISION PHASE I	MTR106603	HELENA	MT	Construction stormwater	Minor	UPPER MISSOURI
AASF CH-47 ADD/ALT PHASE 2	MTR102301	HELENA	MT	Construction stormwater	Minor	PRICKLY PEAR CREEK
AIR LIQUIDE INDUSTRIAL US LP	MT0000426	EAST HELENA	MT		Minor	PRICKLY PEAR CREEK
AIR LIQUIDE LARGE INDUSTRIES	MTR000006	EAST HELENA	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK
AIRPORT BARROW	MTR104819	HELENA	MT	Construction stormwater	Minor	RETENTION POND VIA DRAINS
AIRPORT BORROW 2021	MTR108745	HELENA	MT	Construction stormwater	Minor	HELENA VALLEY CANAL
AM WELLES - CONFEDERATE CREEK CULVERT	MTR103944	TOWNSEND	MT	Construction stormwater	Minor	CONFEDERATE CREEK
AM WELLES - DIEHL PIT	MTR103993	WINSTON	MT	Construction stormwater	Minor	TRIBUTARY TO CANYON FERRY RESERVOIR
AMERICAN CHEMET CORPORATION	MTR000475	EAST HELENA	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK
APPLEGATE MEADOWS SUBDIVISION	MTX000176	HELENA	MT		Minor	CLASS II GOUND WATER
AQUAFLO LLC - SKYVIEW AND NORTHWEST SUBDIVISIONS COMMUNITY WWTS	MTX000121	HELENA	MT		Minor	CLASS I GROUND WATER
ARTISAN VILLAGE	MTR111577	HELENA	MT	Construction stormwater	Minor	HELENA VALLEY CANAL
ASARCO	MTR108676	EAST HELENA	MT	Construction stormwater	Minor	PRICKLY PEAR CREEK
ASARCO - METG - EAST HELENA SMELTER	MT0030147	EAST HELENA	MT		Minor	PRICKLY PEAR CREEK
ASARCO EAST HELENA SMELTER - METG	MTR000072	EAST HELENA	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK
ASH GROVE CEMENT CO	MTR300113	CLANCY	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK
ASH GROVE CEMENT CO MONTANA CITY PLANT	MTR000523	CLANCY	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK
ASH GROVE CEMENT COMPANY - MONTANA CITY PLANT	MT0000451	CLANCY	MT		Minor	PRICKLY PEAR CREEK
AVIATION SUPPORT FACILITY	MTR000428	HELENA	MT	Industrial stormwater	Minor	HELENA VALLEY CANAL
BANDIG	MTG370461	TOWNSEND	MT		Minor	INDIAN CREEK
BENEFIS HEALTH SYSTEMS	MTR109860	HELENA	MT	Construction stormwater	Minor	UNKNOWN
BFS GROUP LLC – HELENA MT TRUSS/PANEL	MTR000418	HELENA	MT	Industrial stormwater	Minor	PRICKLY PEAR CREEK VIA STORM SEWER
BNSF - HELENA RAIL YARD	MTR000361	HELENA	MT	Industrial stormwater	Minor	HELENA STORM SEWER
BOB'S VALLEY MARKET ACE HARDWARE	MTR111500	HELENA	MT	Construction stormwater	Minor	HELENA VALLEY CANAL
BOEING WAREHOUSE ADDITION	MTR111272	HELENA	MT	Construction stormwater	Minor	PRICKLY PEAR CREEK
BREK PILLING FAMILY PROPERTY IMPROVEMENTS	MTR109208	HELENA	MT	Construction stormwater	Minor	HAUSER LAKE
BRIDGE CREEK ESTATES	MTX000141	HELENA	MT		Minor	CLASS I GROUND WATER
BROADWATER COUNTY	MTG870050	TOWNSEND	MT		Minor	BROADWATER COUNTY
BROADWATER ESTATES MAJOR SUBDIVISION	MTX000157	HELENA	MT		Minor	TEN MILE CREEK
BRUCE OAKES 4 INCH SUCTION DREDGE OPERATION	MTG370301	RADERSBURG	MT		Minor	CROW CREEK
BRYANT NO 3 SUBDIVISION COMMUNITY WASTEWATER FACILITY	MTX000182	HELENA	MT		Minor	CLASS I GROUND WATER
BUILDER'S FIRST SOURCE	MTR111052	HELENA	MT	Construction stormwater	Minor	PRICKLY PEAR CREEK
BULLOCK CONTRACTING - KMART PONDS CITY PROJECT 09-10	MTR104781	HELENA	MT	Construction stormwater	Minor	LAKE HELENA
CA RANCH PHASE 2 - ROAD AND UTILITY IMPROVEMENTS	MTR111051	MAUDLOW	MT	Construction stormwater	Minor	SIXTEENMILE CREEK
CAIRD ENGINEERING WORKS DEMOLITION AND CLEANUP	MTR105647	HELENA	MT	Construction stormwater	Minor	CITY OF HELENA
CALIBER COLLISION	MTR109479	HELENA	MT	Construction stormwater	Minor	HELENA VALLEY CANAL
CANYON RIVER GOLF CLUB SINGLE COUNTY PESTICIDE	MTG870004	EAST MISSOULA	MT		Minor	MIDDLE CLARK FORK RIVER
CAPITAL CLAY	MTR000892	HELENA	MT	Industrial stormwater	Minor	HAUSER LAKE
CAPITAL HIGH SCHOOL	MTR111997	HELENA	MT	Construction stormwater	Minor	TENMILE CREEK