Know Your Environment. Protect Your Health.

Thallium

No Kaweah Mutual Water Company

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND20ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-03-22CA5400506_004_004-201803221122ND
2018-03-22CA5400506_006_006-201803221135ND
2018-08-16CA5400506_005_005-201808161025ND
2019-03-07CA5400506_006_006-201903071240ND
2019-03-07CA5400506_004_004-201903071220ND
2020-01-24CA5400506_005_005-202001241510ND
2020-03-17CA5400506_004_004-202003171120ND
2020-03-17CA5400506_006_006-202003171140ND
2021-01-13CA5400506_005_005-202101131000ND
2021-04-22CA5400506_006_006-202104220733ND
2021-04-22CA5400506_004_004-202104220730ND
2022-01-26CA5400506_005_005-202201260830ND
2022-04-07CA5400506_004_004-202204070700ND
2022-04-07CA5400506_006_006-202204070700ND
2023-01-11CA5400506_005_005-202301111630ND
2023-04-26CA5400506_004_004-202304261400ND
2023-04-26CA5400506_006_006-202304261400ND