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EWG's Tap Water Database — 2019 UPDATE

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Antimony

California Water Service Co-leona Valley

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013N/A00N/A
2014ND10ND
20150.0504 ppb85ND - 0.197 ppb
2016ND60ND
2017ND130ND

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
2012-02-085810-006-1403ND
2014-05-065810-001-1356ND
2015-02-025810-006-1416ND
2015-05-135701-001-12100.0210 ppb
2015-05-135701-006-12110.0290 ppb
2015-05-135701-005-12050.197 ppb
2015-06-095701-001-10270.0120 ppb
2015-08-045701-001-1349ND
2015-08-045701-005-13410.144 ppb
2015-08-045701-006-1347ND
2016-02-095701-001-1045ND
2016-02-095701-005-1113ND
2016-02-095701-006-1041ND
2016-11-085701-005-1451ND
2016-11-085701-006-1420ND
2016-11-085701-001-1429ND
2017-02-075701-001-1137ND
2017-02-075701-006-1142ND
2017-02-075701-005-1120ND
2017-05-085810-001-1248ND
2017-05-095701-001-0946ND
2017-05-095701-005-0940ND
2017-05-095701-006-0949ND
2017-08-155701-005-1356ND
2017-08-155701-006-1405ND
2017-08-155701-001-1400ND
2017-11-085701-005-1414ND
2017-11-085701-001-1723ND
2017-12-125701-006-1531ND