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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Compton 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

 

192

Samples

0

Samples exceeding legal limit (MCL)

52

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0781 ppb322ND - 1.40 ppb
20150.113 ppb323ND - 1.30 ppb
20160.472 ppb3212ND - 1.70 ppb
20170.591 ppb3216ND - 1.50 ppb
20180.222 ppb326ND - 1.60 ppb
20190.738 ppb3213ND - 7.20 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
2014-03-073761-800-0920ND
2014-03-073761-801-0900ND
2014-03-073761-802-1000ND
2014-03-073761-803-0940ND
2014-03-073761-804-1100ND
2014-03-073761-805-11201.40 ppb
2014-03-073761-806-1020ND
2014-03-073761-807-1040ND
2014-06-063761-800-1415ND
2014-06-063761-801-1330ND
2014-06-063761-802-1500ND
2014-06-063761-803-1430ND
2014-06-063761-804-1315ND
2014-06-063761-805-1445ND
2014-06-063761-806-1400ND
2014-06-063761-807-1345ND
2014-09-133761-800-09101.10 ppb
2014-09-133761-801-1020ND
2014-09-133761-802-1130ND
2014-09-133761-803-1315ND
2014-09-133761-804-1350ND
2014-09-133761-805-0900ND
2014-09-133761-806-1415ND
2014-09-133761-807-0945ND
2014-12-153761-800-1100ND
2014-12-153761-801-1045ND
2014-12-153761-802-1000ND
2014-12-153761-803-1115ND
2014-12-153761-804-1015ND
2014-12-153761-805-1320ND
2014-12-153761-806-1000ND
2014-12-153761-807-1030ND
2015-03-093761-800-1055ND
2015-03-093761-801-1030ND
2015-03-093761-802-0935ND
2015-03-093761-803-1105ND
2015-03-093761-804-1015ND
2015-03-093761-805-1115ND
2015-03-093761-806-1040ND
2015-03-093761-807-1025ND
2015-06-093761-803-1445ND
2015-06-093761-806-1435ND
2015-06-153761-800-1400ND
2015-06-153761-801-1015ND
2015-06-153761-802-0950ND
2015-06-153761-804-1000ND
2015-06-153761-805-1110ND
2015-06-153761-807-1030ND
2015-09-093761-800-1000ND
2015-09-093761-801-0945ND
2015-09-093761-802-1000ND
2015-09-093761-803-1010ND
2015-09-093761-804-0925ND
2015-09-093761-805-1115ND
2015-09-093761-806-0935ND
2015-09-093761-807-0915ND
2015-12-213761-800-10251.20 ppb
2015-12-213761-801-0955ND
2015-12-213761-802-0920ND
2015-12-213761-803-1035ND
2015-12-213761-804-09401.10 ppb
2015-12-213761-805-1106ND
2015-12-213761-806-1015ND
2015-12-213761-807-10051.30 ppb
2016-03-143761-801-13451.30 ppb
2016-03-143761-804-13301.60 ppb
2016-03-143761-805-12301.10 ppb
2016-03-153761-800-10301.40 ppb
2016-03-153761-802-1120ND
2016-03-153761-803-10401.000 ppb
2016-03-153761-806-10201.70 ppb
2016-03-153761-807-10101.50 ppb
2016-06-203761-800-0810ND
2016-06-203761-801-1035ND
2016-06-203761-802-1150ND
2016-06-203761-803-0935ND
2016-06-203761-804-0900ND
2016-06-203761-805-0830ND
2016-06-203761-806-1006ND
2016-06-203761-807-11201.000 ppb
2016-09-063761-800-0903ND
2016-09-063761-801-0925ND
2016-09-063761-802-1120ND
2016-09-063761-803-0947ND
2016-09-063761-804-1031ND
2016-09-063761-805-1105ND
2016-09-063761-806-1015ND
2016-09-063761-807-1033ND
2016-12-113761-800-14451.10 ppb
2016-12-113761-801-1420ND
2016-12-113761-802-13151.000 ppb
2016-12-113761-803-15151.20 ppb
2016-12-113761-804-1400ND
2016-12-113761-805-13301.20 ppb
2016-12-113761-806-1410ND
2016-12-113761-807-1430ND
2017-03-023761-800-09581.20 ppb
2017-03-023761-801-10511.40 ppb
2017-03-023761-802-1205ND
2017-03-023761-803-1108ND
2017-03-023761-804-11361.40 ppb
2017-03-023761-805-11501.40 ppb
2017-03-023761-806-11031.50 ppb
2017-03-023761-807-11201.000 ppb
2017-06-203761-800-1002ND
2017-06-203761-801-1022ND
2017-06-203761-802-1125ND
2017-06-203761-803-1005ND
2017-06-203761-804-10491.000 ppb
2017-06-203761-805-11071.10 ppb
2017-06-203761-806-1014ND
2017-06-203761-807-1031ND
2017-09-123761-800-1010ND
2017-09-123761-801-0910ND
2017-09-123761-803-1010ND
2017-09-123761-806-13201.000 ppb
2017-09-123761-807-1215ND
2017-09-143761-802-0830ND
2017-09-143761-804-0930ND
2017-09-143761-805-09451.10 ppb
2017-12-113761-800-0830ND
2017-12-113761-801-09101.000 ppb
2017-12-113761-802-1345ND
2017-12-113761-803-08511.10 ppb
2017-12-113761-804-10301.10 ppb
2017-12-113761-805-10551.30 ppb
2017-12-113761-806-09301.20 ppb
2017-12-113761-807-09501.10 ppb
2018-03-113761-800-13301.000 ppb
2018-03-113761-801-13501.60 ppb
2018-03-113761-803-12151.20 ppb
2018-03-113761-806-1415ND
2018-03-113761-807-1530ND
2018-03-123761-802-0930ND
2018-03-123761-804-1115ND
2018-03-123761-805-10301.000 ppb
2018-06-063761-800-11301.20 ppb
2018-06-063761-801-1020ND
2018-06-063761-802-1420ND
2018-06-063761-803-1100ND
2018-06-063761-804-1515ND
2018-06-063761-805-1410ND
2018-06-063761-806-1230ND
2018-06-063761-807-1330ND
2018-09-143761-800-1145ND
2018-09-143761-801-1130ND
2018-09-143761-803-1200ND
2018-09-143761-804-1100ND
2018-09-143761-807-1115ND
2018-09-153761-802-1355ND
2018-09-173761-805-0940ND
2018-09-173761-806-0935ND
2018-12-123761-800-0915ND
2018-12-123761-801-1030ND
2018-12-123761-802-1310ND
2018-12-123761-803-0945ND
2018-12-123761-804-1425ND
2018-12-123761-805-15051.10 ppb
2018-12-123761-806-1115ND
2018-12-123761-807-1210ND
2019-03-263761-800-09301.20 ppb
2019-03-263761-801-09151.50 ppb
2019-03-263761-802-0950ND
2019-03-263761-803-10051.40 ppb
2019-03-263761-804-1409ND
2019-03-263761-805-13471.20 ppb
2019-03-263761-806-10051.70 ppb
2019-03-263761-807-14337.20 ppb
2019-06-173761-800-14451.50 ppb
2019-06-173761-801-1055ND
2019-06-173761-802-1040ND
2019-06-173761-803-1405ND
2019-06-173761-804-1015ND
2019-06-173761-805-0920ND
2019-06-173761-806-13451.40 ppb
2019-06-173761-807-1310ND
2019-09-103761-800-11451.20 ppb
2019-09-103761-801-15051.10 ppb
2019-09-103761-802-1115ND
2019-09-103761-803-1020ND
2019-09-103761-804-1445ND
2019-09-103761-805-13202.00 ppb
2019-09-103761-806-15301.000 ppb
2019-09-103761-807-1557ND
2019-12-103761-800-09251.20 ppb
2019-12-103761-801-0950ND
2019-12-103761-802-1120ND
2019-12-103761-803-1030ND
2019-12-103761-804-1040ND
2019-12-103761-805-1100ND
2019-12-103761-806-0955ND
2019-12-103761-807-0940ND