Radium-226 in Drinking Water
What you need to know about radium-226 in your tap water.
EPA Limit (MCL)
5 pCi/L
EPA Goal (MCLG)
0 pCi/L
Category
Radionuclides
Health Effects
Increased cancer risk
Common Sources
Erosion of natural deposits
How to Remove Radium-226 from Water
Recommended filtration methods: Ion exchange, reverse osmosis
13,136
Total Violations
1,625
Systems Affected
Radium-226 Violations by State
| State | Violations | Systems |
|---|---|---|
| Texas | 3,945 | 222 |
| Colorado | 2,048 | 108 |
| Oklahoma | 1,031 | 114 |
| Georgia | 805 | 150 |
| Illinois | 791 | 101 |
| Missouri | 617 | 21 |
| New Jersey | 423 | 86 |
| Oregon | 364 | 112 |
| Arizona | 307 | 45 |
| North Carolina | 271 | 51 |
| South Dakota | 260 | 19 |
| New York | 254 | 82 |
| Alaska | 201 | 50 |
| Iowa | 188 | 52 |
| Montana | 170 | 87 |
| Connecticut | 150 | 49 |
| Vermont | 150 | 9 |
| Maine | 146 | 56 |
| Minnesota | 130 | 38 |
| New Hampshire | 127 | 23 |
Water Systems with Most Radium-226 Violations
CITY OF BRADY WATER SYSTEM
5,371 served564 violations
F
BLUE RIDGE MOBILE HOME PARK
75 served292 violations
F
MAY VALLEY WA
1,500 served253 violations
F
EASTSIDE MHP
32 served224 violations
F
KENDALL COUNTY WCID 1
3,579 served191 violations
F
CITY OF MASON
2,228 served153 violations
F
BEEHIVE WATER ASSOCIATION
154 served150 violations
F
SOUTH SWINK WATER AUTHORITY
622 served140 violations
F
SILEX PWS
206 served120 violations
F
TEMPE WSC 1
2,725 served119 violations
F