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EWG's Tap Water Database — 2021 UPDATE

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Thallium

City of Corsicana

Thalium is a naturally occurring metal released into the environment from metal smelting and coal burning. Exposure to too much thalium can cause hair loss, liver damage, reduced sperm motility and nervous system impairment.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for thallium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for thallium, established in 1992, was based on analytical detection limits at the time that the standard was set.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-15Q1416551003ND
2014-05-15Q1416551004ND
2015-01-28Q1503409003ND
2015-01-28Q1503409004ND
2016-02-02Q1604417003ND
2016-02-02Q1604417004ND
2017-01-17Q1702000001ND
2017-07-26Q1730737003ND
2018-01-31Q1803716008ND
2018-01-31Q1803716002ND
2019-01-10Q1901447001ND
2019-01-10Q1901447003ND