Know Your Environment. Protect Your Health.

Thallium

Woodlake, City Of

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019N/A00N/A
2020ND30ND
2021ND50ND
2022N/A00N/A
2023ND20ND

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
2018-09-20CA5410020_006_006-201809201220ND
2018-09-20CA5410020_004_004-201809201250ND
2018-09-20CA5410020_005_005-201809201240ND
2018-09-20CA5410020_007_007-201809201230ND
2018-09-20CA5410020_008_008-201809201210ND
2020-09-15CA5410020_010_010-202009151144ND
2020-09-15CA5410020_009_009-202009151138ND
2020-11-19CA5410020_010_010-202011191140ND
2021-08-31CA5410020_004_004-202108311030ND
2021-08-31CA5410020_006_006-202108311045ND
2021-08-31CA5410020_007_007-202108311055ND
2021-08-31CA5410020_005_005-202108311010ND
2021-08-31CA5410020_008_008-202108311109ND
2023-08-15CA5410020_009_009-202308151110ND
2023-08-15CA5410020_010_010-202308151100ND