Know Your Environment. Protect Your Health.

Thallium

City of Pilot Point

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.

 

14

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
2019ND70ND
2020N/A00N/A
2021N/A00N/A
2022ND70ND
2023N/A00N/A

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
2019-04-02Q1913162003ND
2019-04-02Q1913162008ND
2019-04-02Q1913162013ND
2019-04-02Q1913162018ND
2019-04-02Q1913162022ND
2019-05-30Q1930236004ND
2019-05-30Q1930236013ND
2022-06-21Q2217164011ND
2022-06-21Q2217164012ND
2022-10-13Q2231068012ND
2022-10-13Q2231068013ND
2022-10-13Q2231068014ND
2022-10-13Q2231068015ND
2022-10-13Q2231068016ND