Know Your Environment. Protect Your Health.

Antimony

Highfield

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND10ND
2021N/A00N/A
2022ND50ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for antimony 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 change to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 6 ppb

The legal limit for antimony, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-231803160_01ND
2018-03-231803160_01_AND
2018-03-231803160_01_BND
2019-05-141905078_01ND
2019-05-141905078_02ND
2019-05-141905078_03ND
2020-03-18E20003203002ND
2022-06-022206021_01ND
2022-06-022206021_02ND
2022-06-022206021_03ND
2022-10-05E2300078002ND
2022-10-05E2300078003ND
2023-05-102305068-01ND
2023-05-102305068-02ND
2023-05-102305068-03ND
2023-07-05E2300344501ND