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EWG's Tap Water Database — 2019 UPDATE

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Thallium

City of Wichita Falls

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND20ND
2014ND40ND
2015ND40ND
2016ND20ND
2017ND20ND

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
2013-09-25Q1308144024ND
2013-09-25Q1308144022ND
2014-05-13Q1415816002ND
2014-08-14Q1436796021ND
2014-11-12AC71808ND
2014-11-12AC71809ND
2015-02-09Q1505019007ND
2015-02-09Q1505019006ND
2015-05-11Q1517193002ND
2015-09-22Q1537019002ND
2016-02-01Q1604190003ND
2016-02-01Q1604190002ND
2017-03-06Q1709227003ND
2017-08-07Q1733093007ND