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EWG's Tap Water Database — 2019 UPDATE

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Antimony

Philadelphia Water Department

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.

 

63

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND120ND
2014ND120ND
2015ND120ND
20160.0250 ppb121ND - 0.300 ppb
20170.0583 ppb122ND - 0.400 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
2012-10-02DW121002-003ND
2012-10-02DW121002-000ND
2012-10-02DW121002-001ND
2013-01-08DW130108-000ND
2013-01-08DW130108-003ND
2013-01-08DW130108-001ND
2013-04-09DW130409-001ND
2013-04-09DW130409-003ND
2013-04-09DW130409-002ND
2013-07-09DW130709-001ND
2013-07-09DW130709-003ND
2013-07-09DW130709-002ND
2013-10-08DW131008-002ND
2013-10-08DW131008-001ND
2013-10-08DW131008-003ND
2014-01-07DW140107-002ND
2014-01-07DW140107-001ND
2014-01-07DW140107-003ND
2014-04-08DW140408-002ND
2014-04-08DW140408-001ND
2014-04-08DW140408-003ND
2014-07-08DW14078-0022ND
2014-07-08DW14078-0014ND
2014-07-08DW140708-004ND
2014-10-07DW141007-013ND
2014-10-07DW141007-040ND
2014-10-07DW141007-021ND
2015-01-0612292002ND
2015-01-0612292000ND
2015-01-0612292001ND
2015-04-0712637825ND
2015-04-0712637826ND
2015-04-0712637827ND
2015-07-0713017885ND
2015-07-0713017886ND
2015-07-0713017887ND
2015-10-0613394068ND
2015-10-0613394067ND
2015-10-0613394069ND
2016-01-0513758196ND
2016-01-0513758195ND
2016-01-0513758194ND
2016-04-0514109306ND
2016-04-0514109305ND
2016-04-0514109307ND
2016-07-1214577167ND
2016-07-1214577169ND
2016-07-1214577168ND
2016-10-0415082303ND
2016-10-04150823050.300 ppb
2016-10-0415082304ND
2017-01-1015523192ND
2017-01-1015523193ND
2017-01-1015523191ND
2017-04-0415944744ND
2017-04-0415944745ND
2017-04-0415944743ND
2017-07-1116420516ND
2017-07-1116420515ND
2017-07-1116420517ND
2017-10-03168861600.300 ppb
2017-10-03168861590.400 ppb
2017-10-0316886158ND