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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Valencia Water Company

Trichloroacetic 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.

 

192

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND320ND
2015ND320ND
20160.0719 ppb322ND - 1.20 ppb
20170.0938 ppb322ND - 1.50 ppb
20180.566 ppb3214ND - 1.90 ppb
20190.656 ppb3211ND - 2.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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
2014-01-139590-800-0850ND
2014-01-139590-801-1005ND
2014-01-139590-802-0916ND
2014-01-139590-803-1135ND
2014-01-139590-804-1335ND
2014-01-139590-805-1315ND
2014-01-139590-806-0945ND
2014-01-139590-807-0805ND
2014-04-149590-800-1120ND
2014-04-149590-801-0928ND
2014-04-149590-802-0810ND
2014-04-149590-803-1320ND
2014-04-149590-804-1100ND
2014-04-149590-805-1335ND
2014-04-149590-806-1015ND
2014-04-149590-807-1130ND
2014-07-149590-800-1300ND
2014-07-149590-801-1100ND
2014-07-149590-802-0815ND
2014-07-149590-803-1315ND
2014-07-149590-804-1230ND
2014-07-149590-805-1345ND
2014-07-149590-806-1000ND
2014-07-149590-807-1410ND
2014-10-139590-800-1100ND
2014-10-139590-801-1400ND
2014-10-139590-802-0900ND
2014-10-139590-803-1400ND
2014-10-139590-804-1455ND
2014-10-139590-805-1415ND
2014-10-139590-806-1300ND
2014-10-139590-807-1545ND
2015-01-129590-800-1040ND
2015-01-129590-801-1130ND
2015-01-129590-802-0840ND
2015-01-129590-803-0910ND
2015-01-129590-804-1120ND
2015-01-129590-805-0950ND
2015-01-129590-806-1100ND
2015-01-129590-807-1340ND
2015-04-139590-800-1330ND
2015-04-139590-801-1450ND
2015-04-139590-802-1400ND
2015-04-139590-803-1030ND
2015-04-139590-804-1310ND
2015-04-139590-805-0940ND
2015-04-139590-806-1345ND
2015-04-139590-807-1420ND
2015-07-139590-800-1311ND
2015-07-139590-801-1345ND
2015-07-139590-802-1245ND
2015-07-139590-803-1331ND
2015-07-139590-804-1302ND
2015-07-139590-805-1350ND
2015-07-139590-806-1330ND
2015-07-139590-807-1235ND
2015-10-129590-800-1135ND
2015-10-129590-801-0930ND
2015-10-129590-802-0838ND
2015-10-129590-803-1315ND
2015-10-129590-804-0936ND
2015-10-129590-805-1307ND
2015-10-129590-806-1006ND
2015-10-129590-807-0750ND
2016-01-119590-800-0900ND
2016-01-119590-801-1010ND
2016-01-119590-802-1050ND
2016-01-119590-803-1310ND
2016-01-119590-804-1400ND
2016-01-119590-805-1330ND
2016-01-119590-806-0940ND
2016-01-119590-807-1110ND
2016-04-189590-800-0928ND
2016-04-189590-801-10401.10 ppb
2016-04-189590-802-1100ND
2016-04-189590-803-12551.20 ppb
2016-04-189590-804-1345ND
2016-04-189590-805-1320ND
2016-04-189590-806-1010ND
2016-04-189590-807-1120ND
2016-07-189590-800-1012ND
2016-07-189590-801-0858ND
2016-07-189590-802-0830ND
2016-07-189590-803-1042ND
2016-07-189590-804-0919ND
2016-07-189590-805-1120ND
2016-07-189590-806-0924ND
2016-07-189590-807-0810ND
2016-10-179590-800-0910ND
2016-10-179590-801-1000ND
2016-10-179590-802-0835ND
2016-10-179590-803-1130ND
2016-10-179590-804-1100ND
2016-10-179590-805-1145ND
2016-10-179590-806-0935ND
2016-10-179590-807-1025ND
2017-01-179590-800-1015ND
2017-01-179590-801-1045ND
2017-01-179590-802-1100ND
2017-01-179590-803-0930ND
2017-01-179590-804-0900ND
2017-01-179590-805-0945ND
2017-01-179590-806-1030ND
2017-01-179590-807-0835ND
2017-04-179590-800-1000ND
2017-04-179590-801-1040ND
2017-04-179590-802-1055ND
2017-04-179590-803-0915ND
2017-04-179590-804-1130ND
2017-04-179590-805-0935ND
2017-04-179590-806-1020ND
2017-04-179590-807-1110ND
2017-07-189590-800-0905ND
2017-07-189590-801-0935ND
2017-07-189590-802-0955ND
2017-07-189590-803-10451.50 ppb
2017-07-189590-804-1020ND
2017-07-189590-805-11001.50 ppb
2017-07-189590-806-0920ND
2017-07-189590-807-0835ND
2017-10-169590-800-1005ND
2017-10-169590-801-1030ND
2017-10-169590-802-0950ND
2017-10-169590-803-1125ND
2017-10-169590-804-1100ND
2017-10-169590-805-1130ND
2017-10-169590-806-1015ND
2017-10-169590-807-1045ND
2018-01-169590-800-0903ND
2018-01-169590-801-0932ND
2018-01-169590-802-0945ND
2018-01-169590-803-0826ND
2018-01-169590-804-1021ND
2018-01-169590-805-0840ND
2018-01-169590-806-0917ND
2018-01-169590-807-1000ND
2018-04-169590-800-08401.000 ppb
2018-04-169590-801-09051.90 ppb
2018-04-169590-802-09251.10 ppb
2018-04-169590-803-08101.70 ppb
2018-04-169590-804-1005ND
2018-04-169590-805-0820ND
2018-04-169590-806-0855ND
2018-04-169590-807-0945ND
2018-07-169590-800-0845ND
2018-07-169590-801-09251.20 ppb
2018-07-169590-802-0945ND
2018-07-169590-803-08101.70 ppb
2018-07-169590-804-10201.000 ppb
2018-07-169590-805-08201.000 ppb
2018-07-169590-806-0905ND
2018-07-169590-807-1000ND
2018-10-159590-800-08351.10 ppb
2018-10-159590-801-08001.60 ppb
2018-10-159590-802-08501.10 ppb
2018-10-159590-803-09451.60 ppb
2018-10-159590-804-1110ND
2018-10-159590-805-09201.10 ppb
2018-10-159590-806-08151.000 ppb
2018-10-159590-807-1135ND
2019-01-149590-800-0910ND
2019-01-149590-801-10001.40 ppb
2019-01-149590-802-1015ND
2019-01-149590-803-08351.10 ppb
2019-01-149590-804-1100ND
2019-01-149590-805-0845ND
2019-01-149590-806-0935ND
2019-01-149590-807-1030ND
2019-04-159590-800-09352.10 ppb
2019-04-159590-801-10202.10 ppb
2019-04-159590-802-10402.00 ppb
2019-04-159590-803-08402.60 ppb
2019-04-159590-804-11251.60 ppb
2019-04-159590-805-09002.60 ppb
2019-04-159590-806-10002.20 ppb
2019-04-159590-807-11002.20 ppb
2019-07-159590-800-0920ND
2019-07-159590-801-1030ND
2019-07-159590-802-1050ND
2019-07-159590-803-0835ND
2019-07-159590-804-1200ND
2019-07-159590-805-0900ND
2019-07-159590-806-0955ND
2019-07-159590-807-1125ND
2019-10-149590-800-1125ND
2019-10-149590-801-0815ND
2019-10-149590-802-0835ND
2019-10-149590-803-1040ND
2019-10-149590-804-0935ND
2019-10-149590-805-1100ND
2019-10-149590-806-12101.10 ppb
2019-10-149590-807-0905ND