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EWG's Tap Water Database — 2019 UPDATE

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Antimony

City of Georgetown

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.0708 ppb41ND - 0.283 ppb
2014ND30ND
2015ND30ND
2016ND40ND
2017ND30ND

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
2013-03-2513038390020.283 ppb
2013-06-03Q1301827025ND
2013-09-25Q1308517008ND
2013-09-25Q1308517007ND
2014-02-26AC44683ND
2014-02-26AC44687ND
2014-05-06AC53129ND
2015-03-05AC82836ND
2015-03-05AC82826ND
2015-03-05AC82821ND
2016-02-09AD22873ND
2016-02-09AD22874ND
2016-02-09AD22875ND
2016-04-21AD33706ND
2017-01-23AD66000ND
2017-01-23AD65996ND
2017-01-23AD65997ND