Know Your Environment. Protect Your Health.

Thallium

Two Way Special Utility District

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND20ND
2020ND40ND
2021N/A00N/A
2022ND20ND
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
2019-10-14Q1972459014ND
2019-12-11Q1979771006ND
2020-08-25Q2034116005ND
2020-10-12Q2039772015ND
2020-10-12Q2039772016ND
2020-10-12Q2039772017ND
2022-10-11Q2230663017ND
2022-10-11Q2230663018ND
2023-10-31Q2346526013ND
2023-10-31Q2346526014ND
2023-10-31Q2346526019ND