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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Las Virgenes Municipal Water District

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

 

152

Samples

0

Samples exceeding legal limit (MCL)

107

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20152.55 ppb2421ND - 4.20 ppb
20160.466 ppb327ND - 4.00 ppb
20172.07 ppb3226ND - 3.70 ppb
20183.36 ppb3227ND - 18.0 ppb
20191.97 ppb3226ND - 6.40 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
2015-05-189588-800-11472.80 ppb
2015-05-189588-801-11373.40 ppb
2015-05-189588-802-10303.10 ppb
2015-05-189588-803-09504.10 ppb
2015-05-189588-804-12183.60 ppb
2015-05-189588-805-10254.00 ppb
2015-05-189588-806-11104.20 ppb
2015-05-189588-807-09163.40 ppb
2015-08-179588-805-09503.30 ppb
2015-08-179588-806-10331.90 ppb
2015-08-189588-800-08111.80 ppb
2015-08-189588-801-10552.60 ppb
2015-08-189588-802-12491.90 ppb
2015-08-189588-803-12183.00 ppb
2015-08-189588-804-11253.60 ppb
2015-08-189588-807-1027ND
2015-11-169588-800-0808ND
2015-11-169588-801-11382.70 ppb
2015-11-169588-802-11432.30 ppb
2015-11-169588-803-10212.10 ppb
2015-11-169588-804-12082.30 ppb
2015-11-169588-805-10322.80 ppb
2015-11-169588-806-11152.30 ppb
2015-11-169588-807-0859ND
2016-02-169588-800-0824ND
2016-02-169588-801-1201ND
2016-02-169588-802-1345ND
2016-02-169588-803-1311ND
2016-02-169588-804-1233ND
2016-02-169588-805-1054ND
2016-02-169588-806-1133ND
2016-02-169588-807-1127ND
2016-05-169588-800-1056ND
2016-05-169588-801-1158ND
2016-05-169588-802-0905ND
2016-05-169588-803-0822ND
2016-05-169588-804-1226ND
2016-05-169588-805-1053ND
2016-05-169588-806-1135ND
2016-05-179588-807-0919ND
2016-08-159588-800-0900ND
2016-08-159588-801-1315ND
2016-08-159588-802-1313ND
2016-08-159588-803-1234ND
2016-08-159588-804-1350ND
2016-08-159588-805-1152ND
2016-08-159588-806-1240ND
2016-08-159588-807-0956ND
2016-11-219588-800-1308ND
2016-11-219588-801-11541.60 ppb
2016-11-219588-802-13051.70 ppb
2016-11-219588-803-08451.90 ppb
2016-11-219588-804-12301.80 ppb
2016-11-219588-805-10441.90 ppb
2016-11-219588-806-11292.00 ppb
2016-11-219588-807-10364.00 ppb
2017-02-219588-800-1120ND
2017-02-219588-801-13391.80 ppb
2017-02-219588-802-09412.00 ppb
2017-02-219588-803-09141.30 ppb
2017-02-219588-804-14131.40 ppb
2017-02-219588-805-12201.60 ppb
2017-02-219588-806-13111.50 ppb
2017-02-219588-807-10202.90 ppb
2017-05-169588-800-1112ND
2017-05-169588-801-12572.40 ppb
2017-05-169588-802-09192.20 ppb
2017-05-169588-803-0852ND
2017-05-169588-804-13322.00 ppb
2017-05-169588-805-11472.00 ppb
2017-05-169588-806-12291.20 ppb
2017-05-169588-807-11043.00 ppb
2017-08-219588-800-0829ND
2017-08-219588-801-12123.00 ppb
2017-08-219588-802-08573.30 ppb
2017-08-219588-803-11393.00 ppb
2017-08-219588-804-12403.00 ppb
2017-08-219588-805-11063.00 ppb
2017-08-219588-806-23483.20 ppb
2017-08-219588-807-13343.10 ppb
2017-11-209588-800-0905ND
2017-11-209588-801-13173.40 ppb
2017-11-209588-802-13303.50 ppb
2017-11-209588-803-08442.60 ppb
2017-11-209588-804-13533.10 ppb
2017-11-209588-805-1202ND
2017-11-209588-806-12513.10 ppb
2017-11-209588-807-09003.70 ppb
2018-02-209588-800-11191.50 ppb
2018-02-209588-801-12112.20 ppb
2018-02-209588-802-08551.80 ppb
2018-02-209588-803-09401.40 ppb
2018-02-209588-804-12421.40 ppb
2018-02-209588-805-1106ND
2018-02-209588-806-11471.60 ppb
2018-02-209588-807-10133.10 ppb
2018-05-219588-800-08323.90 ppb
2018-05-219588-801-125616.0 ppb
2018-05-219588-802-125416.0 ppb
2018-05-219588-803-12131.90 ppb
2018-05-219588-804-133618.0 ppb
2018-05-219588-805-111514.0 ppb
2018-05-219588-806-12262.50 ppb
2018-05-219588-807-10082.00 ppb
2018-08-209588-800-1341ND
2018-08-209588-801-12261.70 ppb
2018-08-209588-802-08241.30 ppb
2018-08-209588-803-1019ND
2018-08-209588-804-13021.10 ppb
2018-08-209588-805-11121.20 ppb
2018-08-209588-806-12001.10 ppb
2018-08-209588-807-11105.10 ppb
2018-11-199588-800-13552.50 ppb
2018-11-199588-801-13141.40 ppb
2018-11-199588-802-13021.50 ppb
2018-11-199588-803-0825ND
2018-11-199588-804-12201.10 ppb
2018-11-199588-805-10591.000 ppb
2018-11-199588-806-11481.20 ppb
2018-11-199588-807-1019ND
2019-02-199588-800-1030ND
2019-02-199588-801-11471.60 ppb
2019-02-199588-802-08592.60 ppb
2019-02-199588-803-08371.10 ppb
2019-02-199588-804-12281.40 ppb
2019-02-199588-805-1039ND
2019-02-199588-806-1120ND
2019-02-199588-807-1041ND
2019-05-209588-800-0836ND
2019-05-209588-801-13124.40 ppb
2019-05-209588-802-12405.10 ppb
2019-05-209588-803-11211.80 ppb
2019-05-209588-804-13556.40 ppb
2019-05-209588-805-11474.90 ppb
2019-05-209588-806-12381.70 ppb
2019-05-209588-807-10062.30 ppb
2019-08-199588-800-08551.10 ppb
2019-08-199588-801-13431.60 ppb
2019-08-199588-802-11541.40 ppb
2019-08-199588-803-10541.80 ppb
2019-08-199588-804-14241.50 ppb
2019-08-199588-805-12201.60 ppb
2019-08-199588-806-13141.50 ppb
2019-08-199588-807-12261.90 ppb
2019-11-189588-800-0846ND
2019-11-189588-801-13072.70 ppb
2019-11-189588-802-13002.50 ppb
2019-11-189588-803-11242.20 ppb
2019-11-189588-804-13472.20 ppb
2019-11-189588-805-11512.30 ppb
2019-11-189588-806-12392.30 ppb
2019-11-189588-807-10313.20 ppb