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EWG's Tap Water Database — 2021 UPDATE

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Thallium

Cole County PWSD 2

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
2013N/A00N/A
2014N/A00N/A
2015ND70ND
2016N/A00N/A
2017N/A00N/A
2018ND70ND
2019N/A00N/A

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
2015-02-25AC42245ND
2015-02-25AC42244ND
2015-02-25AC42243ND
2015-02-25AC42242ND
2015-02-25AC42240ND
2015-02-25AC42241ND
2015-02-25AC42239ND
2018-02-28AD14516ND
2018-02-28AD14518ND
2018-02-28AD14512ND
2018-02-28AD14513ND
2018-02-28AD14514ND
2018-02-28AD14515ND
2018-02-28AD14517ND