Know Your Environment. Protect Your Health.

Thallium

California Water Service Company Las Lomas

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND70ND
2019ND40ND
2020ND140ND
2021ND20ND
2022ND100ND
2023ND110ND

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
2018-01-04CA2710013_009_009-201801041052ND
2018-02-06CA2710013_004_004-201802061348ND
2018-02-06CA2710013_003_003-201802061402ND
2018-02-06CA2710013_009_009-201802061346ND
2018-03-15CA2710013_009_009-201803151008ND
2018-05-01CA2710013_003_003-201805011410ND
2018-12-18CA2710013_009_009-201812181204ND
2019-03-05CA2710013_009_009-201903051031ND
2019-04-09CA2710013_009_009-201904091005ND
2019-05-07CA2710013_003_003-201905071117ND
2019-08-07CA2710013_003_003-201908071410ND
2020-02-04CA2710013_009_009-202002041250ND
2020-02-04CA2710013_003_003-202002041326ND
2020-02-04CA2710013_004_004-202002041246ND
2020-05-06CA2710013_004_004-202005061100ND
2020-05-06CA2710013_009_009-202005061103ND
2020-05-06CA2710013_003_003-202005061034ND
2020-08-12CA2710013_004_004-202008121414ND
2020-08-13CA2710013_009_009-202008131032ND
2020-08-13CA2710013_004_004-202008131031ND
2020-08-13CA2710013_003_003-202008131024ND
2020-10-07CA2710013_009_009-202010071018ND
2020-11-05CA2710013_009_009-202011051154ND
2020-11-05CA2710013_003_003-202011051331ND
2020-11-05CA2710013_004_004-202011051152ND
2021-05-11CA2710013_003_003-202105111330ND
2021-09-21CA2710013_001_001-202109211255ND
2022-04-18CA2710013_009_009-202204181001ND
2022-05-03CA2710013_003_003-202205031114ND
2022-05-03CA2710013_004_004-202205031056ND
2022-05-03CA2710013_009_009-202205031058ND
2022-06-01CA2710013_009_009-202206011014ND
2022-07-12CA2710013_009_009-202207121135ND
2022-08-03CA2710013_003_003-202208031403ND
2022-08-03CA2710013_009_009-202208031346ND
2022-08-03CA2710013_003_003-202208031410ND
2022-08-03CA2710013_004_004-202208031345ND
2023-04-14CA2710013_009_009-202304141505ND
2023-06-15CA2710013_009_009-202306151209ND
2023-08-10CA2710013_009_009-202308101037ND
2023-08-10CA2710013_004_004-202308101036ND
2023-08-10CA2710013_003_003-202308101014ND
2023-08-23CA2710013_004_004-202308231314ND
2023-09-13CA2710013_009_009-202309131043ND
2023-10-24CA2710013_009_009-202310241310ND
2023-11-07CA2710013_003_003-202311071041ND
2023-11-07CA2710013_009_009-202311071030ND
2023-11-07CA2710013_004_004-202311071029ND