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EWG's Tap Water Database — 2021 UPDATE

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Antimony

Placer County Water Agency - Foothill

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND40ND
2017ND40ND
2018ND30ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-08-203334-007-1200ND
2014-08-203334-002-1010ND
2015-08-113334-002-1000ND
2015-08-113334-007-1305ND
2016-03-302113-014-1440ND
2016-08-032113-014-1045ND
2016-08-172113-002-1215ND
2016-08-172113-007-0945ND
2017-08-081233-007-0900ND
2017-08-081233-002-1120ND
2017-08-221233-014-1040ND
2017-08-227473-014-1040ND
2018-08-147473-007-1310ND
2018-08-147473-002-1120ND
2018-08-227473-014-0930ND
2019-08-277473-002-1135ND
2019-09-097473-007-1330ND
2019-09-127473-014-1150ND