Tapcensus

Gross Alpha, Excl. Radon and U violations in Utah

33 active public water systems in Utah had a Gross Alpha, Excl. Radon and U violation in the past three years, 4 of them still unresolved. What Gross Alpha, Excl. Radon and U is and why it matters.

Health effects: Alpha-emitting radionuclides accumulate in bone and soft tissue, delivering sustained internal radiation doses that increase lifetime cancer risk. There is no established safe threshold for ionizing radiation. Individual contributors such as radium-226 and polonium-210 have their own MCLs; gross alpha serves as a cost-effective screening tool that triggers more specific radionuclide analysis when exceeded.

Systems with a Gross Alpha, Excl. Radon and U violation

Unresolved first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Mount Pleasant City
Sanpete County
4,040 3 0
Whiterocks Water System
County
812 3 1
Bicknell Town
Wayne County
380 1 0
Lynndyl Town Water System
Millard County
130 3 1
Tooele City Water System
Tooele County
41,770 2 0
Brigham City Water System
Box Elder County
20,540 1 0
Grantsville City
Tooele County
16,284 2 0
Smithfield City
Cache County
10,223 2 0
Roosevelt City Water System
Duchesne County
8,000 6 0
Enoch City Water System
Iron County
6,500 5 0
Cedar Valley Water Conservancy
Iron County
3,995 6 0
Richmond City Water System
Cache County
2,967 4 0
Oakley Town Water System
Summit County
1,800 3 1
Centerfield Town Water System
Sanpete County
1,700 3 0
Moroni City
Sanpete County
1,600 7 0
Summit County Service Area #3
Summit County
1,140 4 0
Copperton Improvement District
Salt Lake County
990 3 0
Lincoln Culinary Water Assn
Tooele County
660 2 1
Circleville Town Water System
Piute County
500 3 0
Kanarraville Town Water System
Iron County
452 3 0
Washington County Wcd Sand Hollow
Washington County
425 1 0
Marion Waterworks CO
Summit County
380 3 2
Hi-Country Estates #1
Salt Lake County
373 2 0
Green Hills Country Estates
Weber County
237 2 1
Rockland Ranch
San Juan County
175 5 1
Washington County Wcd Cottam
Washington County
130 1 0
Chekshani Cliffs HOA
Iron County
120 1 0
Harmony Heights Water Company
Washington County
120 7 0
Bear River Wcd Collinston Water System
Box Elder County
102 1 0
North Valley Ranches Sub
Washington County
78 10 3
Irontown
Iron County
75 1 0
Trail Cyn Residents Assn
Emery County
62 4 1
Trappers Crossing Subdivision
Weber County
40 2 0
About this data

A system is counted once if any of its violations in the past three years involved Gross Alpha, Excl. Radon and U, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Gross Alpha, Excl. Radon and U alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Utah records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.