Thallium in Drinking Water

What you need to know about thallium in your tap water.

EPA Limit (MCL)

2 ppb

EPA Goal (MCLG)

0.5 ppb

Category

Inorganic

Health Effects

Hair loss, kidney, intestine, liver problems

Common Sources

Electronics, drugs, alloys, glass manufacturing

How to Remove Thallium from Water

Recommended filtration methods: Ion exchange, activated alumina

4,838

Total Violations

1,596

Systems Affected

Thallium Violations by State

StateViolationsSystems
Texas927224
Pennsylvania880272
Georgia352112
New York319141
Colorado21786
Arizona18136
California15837
Nebraska14935
Mississippi14326
Utah11839
Alabama9533
Oklahoma9140
North Carolina8931
Kansas7923
Missouri7945
New Mexico786
Indiana7642
Montana7645
Illinois7217
New Jersey6529

Water Systems with Most Thallium Violations