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EWG's Tap Water Database — 2019 UPDATE

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Dichloroacetic acid

City of Corona

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.

 

203

Samples

0

Samples exceeding legal limit (MCL)

113

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.75 ppb3827ND - 5.00 ppb
20131.79 ppb4425ND - 7.50 ppb
20140.937 ppb3514ND - 4.90 ppb
20150.800 ppb329ND - 6.30 ppb
20161.73 ppb2212ND - 5.10 ppb
20172.63 ppb3226ND - 8.70 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
2012-03-124790-019-13453.00 ppb
2012-03-124790-036-14001.30 ppb
2012-03-124790-041-1445ND
2012-03-124790-043-11001.50 ppb
2012-03-124790-049-10251.20 ppb
2012-06-044790-019-09403.30 ppb
2012-06-044790-036-13252.70 ppb
2012-06-044790-041-1300ND
2012-06-044790-801-10004.40 ppb
2012-06-044790-802-1140ND
2012-06-044790-803-15305.00 ppb
2012-06-044790-804-14304.80 ppb
2012-06-044790-805-14101.000 ppb
2012-06-044790-806-11104.20 ppb
2012-06-044790-807-13252.10 ppb
2012-06-044790-808-11053.50 ppb
2012-09-114790-019-10501.60 ppb
2012-09-114790-036-11551.50 ppb
2012-09-114790-041-1150ND
2012-09-114790-801-10504.40 ppb
2012-09-114790-802-1135ND
2012-09-114790-803-08251.80 ppb
2012-09-114790-804-08552.30 ppb
2012-09-114790-805-08001.10 ppb
2012-09-114790-806-11153.10 ppb
2012-09-114790-807-1330ND
2012-09-114790-808-10351.10 ppb
2012-12-104790-019-10501.60 ppb
2012-12-104790-036-12001.60 ppb
2012-12-104790-041-1145ND
2012-12-104790-801-09103.60 ppb
2012-12-104790-802-1100ND
2012-12-104790-803-1010ND
2012-12-104790-804-0900ND
2012-12-104790-805-09401.60 ppb
2012-12-104790-806-10451.50 ppb
2012-12-104790-807-1130ND
2012-12-104790-808-14001.70 ppb
2013-03-114790-019-0830ND
2013-03-114790-036-1345ND
2013-03-114790-041-1450ND
2013-03-114790-801-11205.00 ppb
2013-03-114790-802-13051.70 ppb
2013-03-114790-803-1615ND
2013-03-114790-804-1520ND
2013-03-114790-805-1625ND
2013-03-114790-806-12504.70 ppb
2013-03-114790-807-11203.40 ppb
2013-03-114790-808-09252.20 ppb
2013-06-104790-019-15104.00 ppb
2013-06-104790-036-13453.00 ppb
2013-06-104790-041-0920ND
2013-06-104790-801-11157.50 ppb
2013-06-104790-802-12101.70 ppb
2013-06-104790-803-11301.70 ppb
2013-06-104790-804-10303.10 ppb
2013-06-104790-805-1150ND
2013-06-104790-806-11453.50 ppb
2013-06-104790-807-12402.80 ppb
2013-06-104790-808-12203.60 ppb
2013-09-099590-019-13453.10 ppb
2013-09-099590-036-13252.50 ppb
2013-09-099590-041-1410ND
2013-09-099590-801-12305.70 ppb
2013-09-099590-802-1345ND
2013-09-099590-803-17102.20 ppb
2013-09-099590-804-16502.80 ppb
2013-09-099590-805-1730ND
2013-09-099590-806-14502.70 ppb
2013-09-099590-807-09041.000 ppb
2013-09-099590-808-10271.90 ppb
2013-12-169590-019-1430ND
2013-12-169590-036-1300ND
2013-12-169590-041-1330ND
2013-12-169590-801-10403.10 ppb
2013-12-169590-802-1150ND
2013-12-169590-803-1400ND
2013-12-169590-804-1450ND
2013-12-169590-805-1430ND
2013-12-169590-806-11302.10 ppb
2013-12-169590-807-0900ND
2013-12-169590-808-09453.70 ppb
2014-03-039590-019-1345ND
2014-03-039590-036-1430ND
2014-03-039590-041-1505ND
2014-03-039590-801-13154.90 ppb
2014-03-039590-802-1510ND
2014-03-039590-803-1229ND
2014-03-039590-804-1026ND
2014-03-039590-805-1305ND
2014-03-039590-806-1435ND
2014-03-039590-807-0855ND
2014-03-039590-808-1135ND
2014-06-029590-801-12003.50 ppb
2014-06-029590-802-1045ND
2014-06-029590-803-08251.40 ppb
2014-06-029590-804-08501.40 ppb
2014-06-029590-805-0920ND
2014-06-029590-806-12301.60 ppb
2014-06-029590-807-0950ND
2014-06-029590-808-10202.00 ppb
2014-09-159590-801-13004.80 ppb
2014-09-159590-802-14001.70 ppb
2014-09-159590-803-08151.70 ppb
2014-09-159590-804-09101.10 ppb
2014-09-159590-805-0935ND
2014-09-159590-806-13302.70 ppb
2014-09-159590-807-10101.20 ppb
2014-09-159590-808-11302.20 ppb
2014-12-159590-801-14202.60 ppb
2014-12-159590-802-1340ND
2014-12-159590-803-0850ND
2014-12-159590-804-0920ND
2014-12-159590-805-0950ND
2014-12-159590-807-1020ND
2014-12-159590-808-1135ND
2014-12-159590-809-1040ND
2015-03-099590-801-12503.50 ppb
2015-03-099590-802-1230ND
2015-03-099590-803-0900ND
2015-03-099590-804-0935ND
2015-03-099590-805-1015ND
2015-03-099590-807-1040ND
2015-03-099590-808-1320ND
2015-03-099590-809-1110ND
2015-06-089590-801-14503.40 ppb
2015-06-089590-802-1420ND
2015-06-089590-803-09001.10 ppb
2015-06-089590-804-09401.10 ppb
2015-06-089590-805-1010ND
2015-06-089590-807-1040ND
2015-06-089590-808-13402.20 ppb
2015-06-089590-809-1100ND
2015-09-179590-801-11203.60 ppb
2015-09-179590-802-1100ND
2015-09-179590-803-0815ND
2015-09-179590-804-0840ND
2015-09-179590-805-0900ND
2015-09-179590-807-0910ND
2015-09-179590-808-10401.20 ppb
2015-09-179590-809-10206.30 ppb
2015-12-239590-801-10153.20 ppb
2015-12-239590-802-1130ND
2015-12-239590-803-0910ND
2015-12-239590-804-0945ND
2015-12-239590-805-0930ND
2015-12-239590-807-1510ND
2015-12-239590-808-1420ND
2015-12-239590-809-1440ND
2016-03-099590-801-10251.80 ppb
2016-03-099590-802-1050ND
2016-03-099590-803-1110ND
2016-03-099590-804-0840ND
2016-03-099590-805-0910ND
2016-03-099590-807-1330ND
2016-03-099590-808-1440ND
2016-03-099590-809-1400ND
2016-06-099590-801-11515.10 ppb
2016-06-099590-802-1045ND
2016-06-099590-803-08272.70 ppb
2016-06-099590-804-08522.50 ppb
2016-06-099590-805-09102.60 ppb
2016-06-099590-807-09362.60 ppb
2016-06-099590-808-10283.60 ppb
2016-06-099590-809-10063.60 ppb
2016-09-139590-802-1350ND
2016-09-139590-808-14504.10 ppb
2016-09-139590-809-14404.30 ppb
2016-12-159590-802-1350ND
2016-12-159590-808-10102.50 ppb
2016-12-159590-809-09502.60 ppb
2017-03-169590-801-09002.00 ppb
2017-03-169590-802-0950ND
2017-03-169590-803-11201.80 ppb
2017-03-169590-804-10302.00 ppb
2017-03-169590-805-1100ND
2017-03-169590-807-15208.10 ppb
2017-03-169590-808-14208.70 ppb
2017-03-169590-809-14408.70 ppb
2017-06-159590-801-11202.80 ppb
2017-06-159590-802-1540ND
2017-06-159590-803-09202.00 ppb
2017-06-159590-804-09452.40 ppb
2017-06-159590-805-10101.60 ppb
2017-06-159590-807-13403.30 ppb
2017-06-159590-808-14302.90 ppb
2017-06-159590-809-14003.50 ppb
2017-09-139590-801-11004.80 ppb
2017-09-139590-802-14001.000 ppb
2017-09-139590-803-08502.90 ppb
2017-09-139590-804-09103.30 ppb
2017-09-139590-805-09303.10 ppb
2017-09-139590-807-10002.90 ppb
2017-09-139590-808-14403.20 ppb
2017-09-139590-809-15202.90 ppb
2017-12-149590-801-13503.40 ppb
2017-12-149590-802-1450ND
2017-12-149590-803-0830ND
2017-12-149590-804-0855ND
2017-12-149590-805-09251.30 ppb
2017-12-149590-807-09451.70 ppb
2017-12-149590-808-10202.00 ppb
2017-12-149590-809-10101.90 ppb