Know Your Environment. Protect Your Health.

Thallium

Sharon Water Supply Corporation

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.

 

19

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
2019ND50ND
2020ND50ND
2021N/A00N/A
2022ND40ND
2023ND50ND

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
2019-03-20Q1911547007ND
2019-06-06Q1932969020ND
2019-06-06Q1932969021ND
2019-06-06Q1932969038ND
2019-06-06Q1932969039ND
2020-01-21Q2002254016ND
2020-04-08Q2014338006ND
2020-10-21Q2041036038ND
2020-10-21Q2041036021ND
2020-10-21Q2041036020ND
2022-03-09Q2208229002ND
2022-10-20Q2231930022ND
2022-10-20Q2231930023ND
2022-10-20Q2231930024ND
2023-01-11Q2301806005ND
2023-08-15Q2334031013ND
2023-10-25Q2346021019ND
2023-10-25Q2346021020ND
2023-10-25Q2346021021ND