Tapcensus

Radium-228 violations in Utah

31 active public water systems in Utah had a Radium-228 violation in the past three years, 4 of them in the latest quarter of EPA's data. What Radium-228 is and why it matters.

Health effects: Radium-228 accumulates in bone and delivers a beta radiation dose internally, increasing the risk of bone cancer over time. It also decays to radon-220 and other short-lived isotopes, contributing additional radiation dose. As with all radionuclides there is no established safe threshold — any exposure carries some incremental cancer risk.

Systems with a Radium-228 violation

Latest quarter 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
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
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 Radium-228, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Radium-228 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.