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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Camino Real Regional Utility Authority

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

 

93

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
20150.0117 ppb121ND - 0.140 ppb
2016ND160ND
20170.0813 ppb161ND - 1.30 ppb
20180.378 ppb168ND - 1.30 ppb
20190.383 ppb1610ND - 0.990 ppb

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
2014-03-121403726-004BND
2014-03-121403726-005BND
2014-03-121403726-001BND
2014-03-121403726-003BND
2014-03-121403726-002BND
2014-04-141404657-001BND
2014-04-141404659-001BND
2014-04-141404658-001BND
2014-04-141404660-001BND
2014-07-081407380-001BND
2014-07-081407381-001BND
2014-07-081407379-001BND
2014-07-081407377-001BND
2014-10-201410939-001BND
2014-12-101412549-001BND
2014-12-101412540-001BND
2014-12-101412551-001BND
2015-02-101502469-001BND
2015-02-101502468-001BND
2015-02-101502458-001BND
2015-02-101502467-001BND
2015-07-292015021803ND
2015-07-292015021806ND
2015-07-292015021805ND
2015-07-292015021804ND
2015-10-1320150309120.140 ppb
2015-10-132015030914ND
2015-10-132015030911ND
2015-10-132015030913ND
2016-01-262016002415ND
2016-01-262016002412ND
2016-01-262016002413ND
2016-01-262016002414ND
2016-05-042016012625ND
2016-05-042016012624ND
2016-05-042016012623ND
2016-05-042016012626ND
2016-07-132016020159ND
2016-07-132016020158ND
2016-07-132016020160ND
2016-07-132016020161ND
2016-10-062016029358ND
2016-10-062016029355ND
2016-10-062016029356ND
2016-10-062016029357ND
2017-01-052017000486ND
2017-01-052017000488ND
2017-01-052017000489ND
2017-01-052017000487ND
2017-04-122017010886ND
2017-04-122017010887ND
2017-04-122017010888ND
2017-04-122017010889ND
2017-07-122017020032ND
2017-07-122017020033ND
2017-07-122017020034ND
2017-07-122017020031ND
2017-10-2320170306211.30 ppb
2017-10-232017030623ND
2017-10-232017030622ND
2017-10-232017030620ND
2018-01-232018002292ND
2018-01-232018002291ND
2018-01-232018002290ND
2018-01-2320180022891.30 ppb
2018-04-2520180114760.570 ppb
2018-04-2520180114730.470 ppb
2018-04-252018011474ND
2018-04-252018011475ND
2018-07-1820180198250.440 ppb
2018-07-182018019824ND
2018-07-1820180198231.20 ppb
2018-07-1820180198220.620 ppb
2018-10-222018030060ND
2018-10-2220180300610.510 ppb
2018-10-2220180300620.940 ppb
2018-10-222018030063ND
2019-01-1620190014690.440 ppb
2019-01-1620190014700.420 ppb
2019-01-1620190014710.750 ppb
2019-01-1620190014720.530 ppb
2019-04-172019009806ND
2019-04-1720190098090.380 ppb
2019-04-1720190098080.790 ppb
2019-04-1720190098070.510 ppb
2019-07-022019018237ND
2019-07-022019018239ND
2019-07-022019018238ND
2019-07-0220190182360.570 ppb
2019-10-0220190282150.990 ppb
2019-10-022019028214ND
2019-10-022019028213ND
2019-10-0220190282120.750 ppb