Know Your Environment. Protect Your Health.

Antimony

Foothill Estates Ws

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND20ND
2021N/A00N/A
2022ND30ND
2023ND50ND

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
2018-12-18CA2702198_002_002-201812181601ND
2020-08-27CA2702198_002_002-202008271331ND
2020-11-19CA2702198_002_002-202011191436ND
2022-06-24CA2702198_002_002-202206241104ND
2022-09-26CA2702198_002_002-202209261142ND
2022-12-14CA2702198_002_002-202212141434ND
2023-03-28CA2702198_002_002-202303281530ND
2023-06-23CA2702198_002_002-202306231305ND
2023-08-24CA2702198_002_002-202308241439ND
2023-09-19CA2702198_001_001-202309191413ND
2023-10-06CA2702198_001_001-202310060930ND