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Hi3 Water

Arizona Regulatory Risk

2,171 regulatory events on record for Arizona, 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
2,171
Critical
49
High
37
Medium
2,037
Low
48
Latest event
Sep 7, 2026

Most recent alerts

  • Hazardous Waste Facility: Buds Service Center Vsp Enterprise

    medium

    RCRA-permitted hazardous waste facility in Maricopa County, Arizona. Address: 133 S Country Club Rd, Mesa. RCRA ID: AZD982461923. Source: EPA Envirofacts / RCRA.

    Hazardous waste facility Maricopa County Source

  • AGUA FRIA RIVER NEAR HUMBOLDT, AZ — Gage Height 11.8 ft

    low

    USGS monitoring station 09512450 reporting gage height of 11.8 ft. Reading: 2026-09-07T04:00:00. Location: 34.48527778, -112.2375. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • WELLTON-MOHAWK MAIN OUTLET DRAIN NR YUMA, AZ — Gage Height 57.4 ft

    critical

    USGS monitoring station 09529300 reporting gage height of 57.4 ft. Reading: 2026-09-07T03:45:00. Location: 32.74210278, -114.4369028. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • IMPERIAL RESERVOIR AT IMPERIAL DAM, AZ-CA — Gage Height 180.5 ft

    critical

    USGS monitoring station 09429495 reporting gage height of 180.5 ft. Reading: 2026-09-07T03:45:00. Location: 32.88288889, -114.4628056. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • BARTLETT RESERVOIR AT BARTLETT DAM, AZ — Gage Height 182.7 ft

    critical

    USGS monitoring station 09509502 reporting gage height of 182.7 ft. Reading: 2026-09-07T04:30:00. Location: 33.8180973, -111.6318055. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • YUMA MAIN CANAL BLW COLORADO R. SIPHON AT YUMA, AZ — Gage Height 11.2 ft

    low

    USGS monitoring station 09525500 reporting gage height of 11.2 ft. Reading: 2026-09-07T04:15:00. Location: 32.7274, -114.6212694. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • CRIR MAIN CANAL NEAR PARKER, AZ — Gage Height 64.5 ft

    critical

    USGS monitoring station 09428500 reporting gage height of 64.5 ft. Reading: 2026-09-07T04:00:00. Location: 34.16779378, -114.2766175. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • PALO VERDE DRAIN NEAR PARKER, AZ — Gage Height 10.6 ft

    low

    USGS monitoring station 09429030 reporting gage height of 10.6 ft. Reading: 2026-09-07T04:15:00. Location: 33.75696536, -114.4974554. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • CRIR LWR MAIN DRAIN BLW TYSON WW, NR EHRENBERG, AZ — Gage Height 16.1 ft

    medium

    USGS monitoring station 09429070 reporting gage height of 16.1 ft. Reading: 2026-09-07T04:30:00. Location: 33.72951944, -114.497561. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • SANTA CRUZ RIVER AT TUBAC, AZ. — Gage Height 21.0 ft

    high

    USGS monitoring station 09481740 reporting gage height of 21.0 ft. Reading: 2026-09-07T03:45:00. Location: 31.61304167, -111.040125. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • HORSESHOE RESERVOIR AT HORSESHOE DAM, AZ — Gage Height 85.4 ft

    critical

    USGS monitoring station 09509501 reporting gage height of 85.4 ft. Reading: 2026-09-07T04:30:00. Location: 33.98477418, -111.71043918. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • COLORADO RVR ABV OCEAN TO OCEAN BRIDGE NR YUMA, AZ — Gage Height 15.7 ft

    medium

    USGS monitoring station 09520900 reporting gage height of 15.7 ft. Reading: 2026-09-07T03:45:00. Location: 32.72652778, -114.6019333. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • GILA GRAVITY CANAL AT YUMA-MESA PUMPING PLANT, AZ — Gage Height 16.9 ft

    medium

    USGS monitoring station 09522850 reporting gage height of 16.9 ft. Reading: 2026-09-07T04:15:00. Location: 32.68175, -114.4703639. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • MOENKOPI WASH AT MOENKOPI, AZ — Gage Height 19.0 ft

    high

    USGS monitoring station 09401260 reporting gage height of 19.0 ft. Reading: 2026-09-07T03:45:00. Location: 36.10499334, -111.2018069. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • COLORADO RIVER NEAR GRAND CANYON, AZ — Gage Height 14.3 ft

    medium

    USGS monitoring station 09402500 reporting gage height of 14.3 ft. Reading: 2026-09-07T04:15:00. Location: 36.10137176, -112.0862795. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • MESQUITE CANAL NR MESQUITE, NV — Gage Height 15.6 ft

    medium

    USGS monitoring station 09415060 reporting gage height of 15.6 ft. Reading: 2026-09-07T04:35:00. Location: 36.80988889, -114.01475. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • BILL WILLIAMS RIVER BELOW ALAMO DAM, AZ — Gage Height 12.0 ft

    low

    USGS monitoring station 09426000 reporting gage height of 12.0 ft. Reading: 2026-09-07T04:30:00. Location: 34.2310833, -113.6099306. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • VIRGIN RV ABV THE NARROWS NR LITTLEFIELD, AZ — Gage Height 16.9 ft

    medium

    USGS monitoring station 09413700 reporting gage height of 16.9 ft. Reading: 2026-09-07T04:20:00. Location: 36.921389, -113.831389. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • BRIGHT ANGEL CREEK NEAR GRAND CANYON, ARIZ. — Gage Height 11.0 ft

    low

    USGS monitoring station 09403000 reporting gage height of 11.0 ft. Reading: 2026-09-07T04:30:00. Location: 36.09972222, -112.09388889. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • LAKE MOHAVE AT DAVIS DAM, AZ-NV — Gage Height 40.7 ft

    critical

    USGS monitoring station 09422500 reporting gage height of 40.7 ft. Reading: 2026-09-07T03:45:00. Location: 35.1963472, -114.5702028. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • SAN CARLOS RESERVOIR AT COOLIDGE DAM, AZ — Gage Height 2399.9 ft

    critical

    USGS monitoring station 09469000 reporting gage height of 2399.9 ft. Reading: 2026-09-07T04:30:00. Location: 33.1753361, -110.5280194. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • SANTA CRUZ RIVER AT SILVERLAKE RD, AT TUCSON, AZ — Gage Height 24.5 ft

    high

    USGS monitoring station 09482440 reporting gage height of 24.5 ft. Reading: 2026-09-07T04:30:00. Location: 32.2001111, -110.9878333. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • EAST VERDE RIVER NEAR CHILDS, AZ — Gage Height 11.1 ft

    low

    USGS monitoring station 09507980 reporting gage height of 11.1 ft. Reading: 2026-09-07T04:30:00. Location: 34.27643412, -111.63877301. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • POSTON WASTEWAY NEAR POSTON, AZ — Gage Height 23.9 ft

    high

    USGS monitoring station 09428510 reporting gage height of 23.9 ft. Reading: 2026-09-07T04:30:00. Location: 33.99845278, -114.4563389. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • GILA RIVER NEAR DOME, AZ — Gage Height 14.7 ft

    medium

    USGS monitoring station 09520500 reporting gage height of 14.7 ft. Reading: 2026-09-07T04:30:00. Location: 32.7608789, -114.4205019. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • GILA GRAVITY MAIN CANAL AT IMPERIAL DAM, AZ-CA — Gage Height 17.6 ft

    medium

    USGS monitoring station 09522500 reporting gage height of 17.6 ft. Reading: 2026-09-07T04:30:00. Location: 32.8712, -114.4500806. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • SOUTH GILA MAIN CANAL NEAR YUMA, AZ — Gage Height 11.2 ft

    low

    USGS monitoring station 09522800 reporting gage height of 11.2 ft. Reading: 2026-09-07T04:15:00. Location: 32.68743889, -114.4721778. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • CRAGIN DAM RESERVOIR NEAR PINE, AZ (BLUE RIDGE) — Gage Height 62.7 ft

    critical

    USGS monitoring station 09398300 reporting gage height of 62.7 ft. Reading: 2026-09-07T04:30:00. Location: 34.555278, -111.183333. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • LYMAN LAKE NEAR ST. JOHNS, AZ — Gage Height 5949.0 ft

    critical

    USGS monitoring station 09384600 reporting gage height of 5949.0 ft. Reading: 2026-09-07T04:15:00. Location: 34.37448424, -109.3848182. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source

  • LITTLE COLORADO RIVER NEAR WINSLOW, AZ — Gage Height 10.7 ft

    low

    USGS monitoring station 09400350 reporting gage height of 10.7 ft. Reading: 2026-09-07T04:00:00. Location: 35.006725, -110.6542806. Source: USGS National Water Information System.

    Flood warning Sep 7, 2026 Source
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