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EWG's Tap Water Database — 2019 UPDATE

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Antimony

California Water Service Company - Dominguez

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND60ND
20140.0197 ppb31ND - 0.0590 ppb
2015ND10ND
2016ND60ND
2017ND60ND

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
2012-08-205810-018-1124ND
2013-03-135810-024-1047ND
2013-05-085810-036-1143ND
2013-06-185810-023-1312ND
2013-07-175810-050-1442ND
2013-09-195810-004-1430ND
2013-10-165810-022-1400ND
2014-07-095701-050-13400.0590 ppb
2014-08-275810-016-1310ND
2014-10-085810-019-1022ND
2015-03-259590-018-1355ND
2016-01-135810-023-1320ND
2016-03-239590-018-1340ND
2016-05-115810-036-1140ND
2016-07-135810-050-1335ND
2016-09-075810-004-1300ND
2016-12-289590-019-0930ND
2017-03-089590-019-1430ND
2017-08-235810-019-1100ND
2017-08-235810-016-1212ND
2017-10-119590-036-1335ND
2017-10-169590-805-1030ND
2017-12-265810-024-1315ND