Know Your Environment. Protect Your Health.

Thallium

Adams County W/a #2-south

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.

 

23

Samples

2

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019N/A00N/A
2020ND100ND
2021N/A00N/A
20220.450 ppb62ND - 2.10 ppb
20233.90 ppb220.700 ppb - 7.10 ppb

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
2018-09-10180911-024INND
2018-09-10180911-025INND
2018-09-10180911-026INND
2018-09-10180911-027INND
2018-09-17180918-002INND
2020-03-30200331-033INND
2020-03-30200331-036INND
2020-03-30200331-035INND
2020-03-30200331-034INND
2020-03-30200331-032INND
2020-04-06IN-200407-024ND
2020-04-06IN-200407-023ND
2020-04-06IN-200407-022ND
2020-04-06IN-200407-021ND
2020-04-06IN-200407-020ND
2022-05-03IN-220504-005ND
2022-05-03IN-220504-006ND
2022-05-03IN-220504-0072.10 ppb
2022-05-03IN-220504-008ND
2022-05-03IN-220504-009ND
2022-11-30IN-221201-0250.600 ppb
2023-02-21IN-230222-0040.700 ppb
2023-05-15IN-230516-0237.10 ppb