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EWG's Tap Water Database — 2019 UPDATE

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Dichloroacetic acid

Golden State Water Company (GSWC) - South Arcadia

Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND160ND
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was proposed in 2020 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2012-04-259588-800-1150ND
2012-04-259588-801-1220ND
2012-04-259588-802-1230ND
2012-04-259588-803-1210ND
2012-07-269588-801-0740ND
2012-07-269588-802-0730ND
2012-07-269588-800-0810ND
2012-07-269588-803-0750ND
2012-10-239588-802-0845ND
2012-10-239588-801-0855ND
2012-10-239588-800-0920ND
2012-10-239588-803-0905ND
2013-01-239588-803-0825ND
2013-01-239588-800-0840ND
2013-01-239588-801-0815ND
2013-01-239588-802-0805ND
2013-04-239588-800-0835ND
2013-04-239588-801-0810ND
2013-04-239588-802-0800ND
2013-04-239588-803-0820ND
2013-07-249588-802-0855ND
2013-07-249588-800-0940ND
2013-07-249588-803-0920ND
2013-07-249588-801-0905ND
2013-10-239588-802-0745ND
2013-10-239588-800-0820ND
2013-10-239588-801-0755ND
2013-10-239588-803-0805ND
2014-01-239588-802-0800ND
2014-01-239588-801-0810ND
2014-01-239588-803-0820ND
2014-01-239588-800-0835ND
2014-04-229588-801-0750ND
2014-04-229588-800-0815ND
2014-04-229588-803-0800ND
2014-04-229588-802-0740ND
2014-07-239588-803-0735ND
2014-07-239588-800-0750ND
2014-07-239588-802-0705ND
2014-07-239588-801-0720ND
2014-10-239588-802-0800ND
2014-10-239588-803-0820ND
2014-10-239588-800-0835ND
2014-10-239588-801-0810ND
2015-01-239588-802-0730ND
2015-01-239588-803-0750ND
2015-01-239588-801-0740ND
2015-01-239588-800-0805ND
2015-04-229588-800-0800ND
2015-04-229588-801-0740ND
2015-04-229588-802-0730ND
2015-04-229588-803-0750ND
2015-07-239588-800-0805ND
2015-07-239588-801-0745ND
2015-07-239588-802-0735ND
2015-07-239588-803-0755ND
2015-10-269588-803-0750ND
2015-10-269588-800-0805ND
2015-10-269588-801-0740ND
2015-10-269588-802-0730ND
2016-01-269588-802-0750ND
2016-01-269588-803-0810ND
2016-01-269588-801-0800ND
2016-01-269588-800-0825ND
2016-04-229588-802-0730ND
2016-04-229588-800-0805ND
2016-04-229588-803-0750ND
2016-04-229588-801-0740ND
2016-07-269588-800-0810ND
2016-07-269588-802-0730ND
2016-07-269588-803-0755ND
2016-07-269588-801-0740ND
2016-10-269588-802-0800ND
2016-10-269588-803-0820ND
2016-10-269588-800-0830ND
2016-10-269588-801-0810ND
2017-01-249588-801-0750ND
2017-01-249588-800-0815ND
2017-01-249588-803-0800ND
2017-01-249588-802-0740ND
2017-04-249588-801-0905ND
2017-04-249588-803-0925ND
2017-04-249588-800-0940ND
2017-04-249588-802-0855ND
2017-07-279588-801-1515ND
2017-07-279588-803-1450ND
2017-07-279588-800-1435ND
2017-07-279588-802-1530ND
2017-10-249588-800-0810ND
2017-10-249588-801-0740ND
2017-10-249588-802-0730ND
2017-10-249588-803-0755ND