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EWG's Tap Water Database — 2021 UPDATE

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Antimony

Hornersville PWS

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
2014N/A00N/A
2015ND30ND
2016ND50ND
2017ND40ND
2018ND40ND
2019ND20ND

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
2015-08-17AC57693ND
2015-09-08AC60542ND
2015-12-15AC61385ND
2016-02-23AC67477ND
2016-03-28AC69162ND
2016-05-17AC69551ND
2016-07-07AC79472ND
2016-10-06AC86547ND
2017-01-04AC89292ND
2017-05-31AC98196ND
2017-07-20AD01717ND
2017-10-13AD09027ND
2018-05-23AD11501ND
2018-05-23AD18216ND
2018-08-28AD29447ND
2018-12-26AD34550ND
2019-02-26AD37862ND
2019-06-26AD46286ND