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EWG's Tap Water Database — 2019 UPDATE

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Antimony

St. Louis City

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
20170.375 ppb220.360 ppb - 0.390 ppb

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
2012-11-14AB87313ND
2012-11-14AB87314ND
2013-12-02CRCW120213IOCND
2013-12-02HBBC120213IOCND
2014-05-28AC23435ND
2014-05-28AC23436ND
2015-05-29HBCB052915IOCND
2015-05-29CRCW052915IOCND
2016-07-19HBCB071916IOCND
2016-07-19CRCW071916IOCND
2017-08-16CRCW081617IOC0.360 ppb
2017-08-16HBBC081617IOC0.390 ppb