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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Monrovia Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND170ND
2019ND160ND

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
2014-01-319588-802-1000ND
2014-01-319588-800-1015ND
2014-01-319588-801-1030ND
2014-01-319588-803-1045ND
2014-04-309588-803-0825ND
2014-04-309588-802-0945ND
2014-04-309588-801-0850ND
2014-04-309588-800-0840ND
2014-07-319588-803-1100ND
2014-07-319588-802-0950ND
2014-07-319588-801-1045ND
2014-07-319588-800-1015ND
2014-10-319588-802-1005ND
2014-10-319588-801-0920ND
2014-10-319588-803-0900ND
2014-10-319588-800-0910ND
2015-01-299588-803-0745ND
2015-01-299588-802-0855ND
2015-01-299588-801-0810ND
2015-01-299588-800-0755ND
2015-04-309588-803-1020ND
2015-04-309588-802-0800ND
2015-04-309588-800-0955ND
2015-04-309588-801-1005ND
2015-07-319588-801-0810ND
2015-07-319588-800-0755ND
2015-07-319588-803-0745ND
2015-07-319588-802-0910ND
2015-10-299588-801-0815ND
2015-10-299588-800-0750ND
2015-10-299588-803-0830ND
2015-10-299588-802-1115ND
2016-01-289588-801-0825ND
2016-01-289588-800-0815ND
2016-01-289588-803-0800ND
2016-01-289588-802-1040ND
2016-04-289588-801-0830ND
2016-04-289588-800-0820ND
2016-04-289588-803-0810ND
2016-04-289588-802-0830ND
2016-07-289588-801-0825ND
2016-07-289588-800-0810ND
2016-07-289588-803-0755ND
2016-07-289588-802-0910ND
2016-10-289588-800-0810ND
2016-10-289588-802-0905ND
2016-10-289588-803-0755ND
2016-10-289588-801-0820ND
2017-01-309588-801-0810ND
2017-01-309588-800-0800ND
2017-01-309588-802-0910ND
2017-01-309588-803-0745ND
2017-04-289588-801-0810ND
2017-04-289588-800-0825ND
2017-04-289588-803-0745ND
2017-04-289588-802-0910ND
2017-07-319588-803-0855ND
2017-07-319588-801-0840ND
2017-07-319588-800-0820ND
2017-07-319588-802-0915ND
2017-10-319588-803-0755ND
2017-10-319588-801-0820ND
2017-10-319588-800-0810ND
2017-10-319588-802-0930ND
2018-01-319588-801-0830ND
2018-01-319588-803-0800ND
2018-01-319588-800-0815ND
2018-01-319588-802-0925ND
2018-02-209588-800-0755ND
2018-04-279588-802-0900ND
2018-04-279588-801-0755ND
2018-04-279588-803-0735ND
2018-04-279588-800-0745ND
2018-07-309588-801-0815ND
2018-07-309588-803-0745ND
2018-07-309588-802-0910ND
2018-07-309588-800-0800ND
2018-10-309588-803-0820ND
2018-10-309588-801-0845ND
2018-10-309588-800-0830ND
2018-10-309588-802-0930ND
2019-01-299588-800-0830ND
2019-01-299588-802-0935ND
2019-01-299588-801-0840ND
2019-01-299588-803-0815ND
2019-04-299588-801-0830ND
2019-04-299588-800-0820ND
2019-04-299588-803-0805ND
2019-04-299588-802-0915ND
2019-07-299588-801-0740ND
2019-07-299588-800-0730ND
2019-07-299588-802-0830ND
2019-07-299588-803-0715ND
2019-10-299588-801-0800ND
2019-10-299588-802-0905ND
2019-10-299588-800-0745ND
2019-10-299588-803-0735ND