Know Your Environment. Protect Your Health.

Thallium

Pine Valley Mutual Water Company

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
2019N/A00N/A
2020ND120ND
2021N/A00N/A
2022N/A00N/A
2023ND70ND

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
2020-09-08CA3710039_006_006-202009081105ND
2020-09-08CA3710039_003_003-202009081150ND
2020-09-08CA3710039_010_010-202009081040ND
2020-10-05CA3710039_009_009-202010051035ND
2020-10-05CA3710039_007_007-202010051135ND
2020-10-05CA3710039_001_001-202010051020ND
2020-10-05CA3710039_005_005-202010051205ND
2020-10-05CA3710039_004_004-202010051115ND
2020-11-16CA3710039_009_009-202011160950ND
2020-11-16CA3710039_001_001-202011160920ND
2020-11-16CA3710039_004_004-202011161140ND
2020-11-16CA3710039_005_005-202011161005ND
2023-09-05CA3710039_006_006-202309050830ND
2023-09-05CA3710039_003_003-202309050800ND
2023-09-05CA3710039_010_010-202309050840ND
2023-11-01CA3710039_001_001-202311010800ND
2023-11-01CA3710039_005_005-202311010840ND
2023-11-01CA3710039_009_009-202311010900ND
2023-11-01CA3710039_004_004-202311010820ND