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EWG's Tap Water Database — 2019 UPDATE

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Thallium

City of Manteca

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013ND50ND
2014ND20ND
2015ND90ND
2016ND40ND
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
2012-02-085810-044-0745ND
2012-05-085810-028-0810ND
2012-05-085810-016-1115ND
2012-05-085810-013-0710ND
2012-06-125810-049-0717ND
2012-08-145810-015-0920ND
2012-09-115810-030-0927ND
2012-12-115810-036-1125ND
2013-04-105810-012-0805ND
2013-05-155810-034-0746ND
2013-06-055810-038-0745ND
2013-07-175810-032-0730ND
2013-08-145810-014-0810ND
2014-04-085810-040-0825ND
2014-06-105810-042-0750ND
2015-02-105810-044-0644ND
2015-05-125810-013-0750ND
2015-05-125810-028-1535ND
2015-05-125810-016-0725ND
2015-06-095810-049-0650ND
2015-07-215810-034-0812ND
2015-08-115810-015-0815ND
2015-09-085810-030-1045ND
2015-12-095810-036-0840ND
2016-04-195810-012-0920ND
2016-06-145810-038-0645ND
2016-07-125810-032-0630ND
2016-08-235810-014-0715ND
2017-05-095810-040-0859ND
2017-06-135810-042-0745ND