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EWG's Tap Water Database — 2021 UPDATE

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Thallium

Lebanon

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.

MORE ABOUT THIS CONTAMINANT

 

23

Samples

2

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
20161.20 ppb123ND - 8.63 ppb
20170.385 ppb41ND - 1.54 ppb
2018ND10ND
2019ND60ND

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
2016-02-29AC66566ND
2016-02-29AC66563ND
2016-02-29AC665671.57 ppb
2016-02-29AC66565ND
2016-02-29AC66564ND
2016-02-29AC66568ND
2016-03-25AC690334.22 ppb
2016-03-25AC69046ND
2016-04-04AC702928.63 ppb
2016-04-04AC70293ND
2016-08-02AC80038ND
2016-10-12AC85441ND
2017-01-30AC893141.54 ppb
2017-04-17AC94652ND
2017-07-18AD01718ND
2017-10-24AD08055ND
2018-05-08AD18222ND
2019-03-04AD39580ND
2019-03-04AD39581ND
2019-03-04AD39582ND
2019-03-04AD39583ND
2019-03-04AD39584ND
2019-03-04AD39585ND