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Hi3 Water

Montana Regulatory Risk

2,086 regulatory events on record for Montana, which administers water under prior appropriation doctrine. Events come from EPA enforcement and compliance data, the Superfund and hazardous waste registries, USGS flood and streamflow monitoring and the US Drought Monitor, and are matched to nearby springs, wells and aquifers on their asset pages.

Total alerts
2,086
Critical
24
High
32
Medium
2,016
Low
14
Latest event
Sep 7, 2026

Most recent alerts

  • Hazardous Waste Facility: Pierce Manufacturing Co

    medium

    RCRA-permitted hazardous waste facility in Flathead County, Montana. Address: 3445 Hwy 93 S, Kalispell. RCRA ID: MTR000004804. Source: EPA Envirofacts / RCRA.

    Hazardous waste facility Flathead County Source

  • Hazardous Waste Facility: Columbus High School

    medium

    RCRA-permitted hazardous waste facility in Stillwater County, Montana. Address: 433 N 3Rd St, Columbus. RCRA ID: MTD100782531. Source: EPA Envirofacts / RCRA.

    Hazardous waste facility Stillwater County Source

  • Missouri River near Landusky MT — Gage Height 13.2 ft

    medium

    USGS monitoring station 06115200 reporting gage height of 13.2 ft. Reading: 2026-09-07T05:00:00. Location: 47.631431, -108.687744. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Yellowstone River at Glendive, MT — Gage Height 42.3 ft

    critical

    USGS monitoring station 06327500 reporting gage height of 42.3 ft. Reading: 2026-09-07T05:00:00. Location: 47.10588889, -104.7184306. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Big Horn Canal near St. Xavier MT — Gage Height 72.8 ft

    critical

    USGS monitoring station 06286490 reporting gage height of 72.8 ft. Reading: 2026-09-07T05:15:00. Location: 45.3163485, -107.9184433. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Missouri R at E Frazer Pump Plant nr Frazer MT — Gage Height 41.5 ft

    critical

    USGS monitoring station 06175510 reporting gage height of 41.5 ft. Reading: 2026-09-07T05:30:00. Location: 48.0333506, -106.0005722. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Poplar R ab W Fk Poplar R, nr Bredette, MT — Gage Height 26.6 ft

    critical

    USGS monitoring station 06179200 reporting gage height of 26.6 ft. Reading: 2026-09-07T05:30:00. Location: 48.57775, -105.374306. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • MISSOURI RIVER NO. 4 NEAR NOHLY, MT — Gage Height 10.3 ft

    low

    USGS monitoring station 06185600 reporting gage height of 10.3 ft. Reading: 2026-09-07T05:15:00. Location: 48.036111, -104.161111. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Bighorn R bl Yellowtail Afterbay Dam nr St. Xavier — Gage Height 59.9 ft

    critical

    USGS monitoring station 06287000 reporting gage height of 59.9 ft. Reading: 2026-09-07T05:15:00. Location: 45.31690278, -107.9188889. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Tongue River at Tongue R Dam nr Decker MT — Gage Height 10.6 ft

    low

    USGS monitoring station 06307500 reporting gage height of 10.6 ft. Reading: 2026-09-07T05:30:00. Location: 45.141275, -106.771356. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Kootenai River bl Libby Dam nr Libby MT — Gage Height 19.0 ft

    high

    USGS monitoring station 12301933 reporting gage height of 19.0 ft. Reading: 2026-09-07T05:00:00. Location: 48.40066389, -115.3187194. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Yellowstone River Fish Bypass Channel nr Intake MT — Gage Height 14.4 ft

    medium

    USGS monitoring station 06328495 reporting gage height of 14.4 ft. Reading: 2026-09-07T05:00:00. Location: 47.2637222, -104.5396667. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • St. Mary Canal at St. Mary Crossing near Babb MT — Gage Height 23.6 ft

    high

    USGS monitoring station 05018500 reporting gage height of 23.6 ft. Reading: 2026-09-07T05:15:00. Location: 48.94696667, -113.3753306. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Missouri River near Wolf Point MT — Gage Height 10.8 ft

    low

    USGS monitoring station 06177000 reporting gage height of 10.8 ft. Reading: 2026-09-07T05:00:00. Location: 48.067325, -105.5330972. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Lodge Creek near Chinook, MT — Gage Height 18.0 ft

    high

    USGS monitoring station 06146980 reporting gage height of 18.0 ft. Reading: 2026-09-07T05:30:00. Location: 48.6753611, -109.275. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Flathead River at Foys Bend nr Kalispell MT — Gage Height 95.6 ft

    critical

    USGS monitoring station 12366500 reporting gage height of 95.6 ft. Reading: 2026-09-07T04:45:00. Location: 48.1543111, -114.248925. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Lake Como Spillway near Darby, MT — Gage Height 13.1 ft

    medium

    USGS monitoring station 12344501 reporting gage height of 13.1 ft. Reading: 2026-09-07T05:30:00. Location: 46.06796111, -114.23875833. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • Flathead River at Foys Bend nr Kalispell MT — Gage Height 96.1 ft

    critical

    USGS monitoring station 12366500 reporting gage height of 96.1 ft. Reading: 2026-07-17T01:45:00. Location: 48.1543111, -114.248925. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Kootenai River bl Libby Dam nr Libby MT — Gage Height 19.9 ft

    high

    USGS monitoring station 12301933 reporting gage height of 19.9 ft. Reading: 2026-07-17T02:00:00. Location: 48.40066389, -115.3187194. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Flathead River at Perma MT — Gage Height 10.0 ft

    low

    USGS monitoring station 12388700 reporting gage height of 10.0 ft. Reading: 2026-07-17T01:30:00. Location: 47.36679167, -114.585. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Tongue River at Tongue R Dam nr Decker MT — Gage Height 11.6 ft

    low

    USGS monitoring station 06307500 reporting gage height of 11.6 ft. Reading: 2026-07-17T02:30:00. Location: 45.141275, -106.771356. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Missouri River near Wolf Point MT — Gage Height 11.0 ft

    low

    USGS monitoring station 06177000 reporting gage height of 11.0 ft. Reading: 2026-07-17T02:00:00. Location: 48.067325, -105.5330972. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • MISSOURI RIVER NO. 4 NEAR NOHLY, MT — Gage Height 10.5 ft

    low

    USGS monitoring station 06185600 reporting gage height of 10.5 ft. Reading: 2026-07-17T02:15:00. Location: 48.036111, -104.161111. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Tongue River at Ashland, MT — Gage Height 10.8 ft

    low

    USGS monitoring station 06307662 reporting gage height of 10.8 ft. Reading: 2026-07-17T02:00:00. Location: 45.59775, -106.2749444. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • St. Mary Canal at St. Mary Crossing near Babb MT — Gage Height 23.5 ft

    high

    USGS monitoring station 05018500 reporting gage height of 23.5 ft. Reading: 2026-07-17T02:15:00. Location: 48.94696667, -113.3753306. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Poplar R ab W Fk Poplar R, nr Bredette, MT — Gage Height 27.0 ft

    critical

    USGS monitoring station 06179200 reporting gage height of 27.0 ft. Reading: 2026-07-17T01:30:00. Location: 48.57775, -105.374306. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Big Horn Canal near St. Xavier MT — Gage Height 72.8 ft

    critical

    USGS monitoring station 06286490 reporting gage height of 72.8 ft. Reading: 2026-07-17T02:15:00. Location: 45.3163485, -107.9184433. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Bighorn R bl Yellowtail Afterbay Dam nr St. Xavier — Gage Height 59.5 ft

    critical

    USGS monitoring station 06287000 reporting gage height of 59.5 ft. Reading: 2026-07-17T02:15:00. Location: 45.31690278, -107.9188889. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Yellowstone River at Glendive, MT — Gage Height 43.6 ft

    critical

    USGS monitoring station 06327500 reporting gage height of 43.6 ft. Reading: 2026-07-17T02:00:00. Location: 47.10588889, -104.7184306. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source

  • Yellowstone River Fish Bypass Channel nr Intake MT — Gage Height 15.4 ft

    medium

    USGS monitoring station 06328495 reporting gage height of 15.4 ft. Reading: 2026-07-17T02:00:00. Location: 47.2637222, -104.5396667. Source: USGS National Water Information System.

    Flood warning Jul 17, 2026 Source
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