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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City Of Brea

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.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.99 ppb1615ND - 6.40 ppb
20151.07 ppb169ND - 3.20 ppb
2016ND160ND
20170.200 ppb161ND - 3.20 ppb
2018ND160ND
20190.113 ppb161ND - 1.80 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
2014-01-073761-803-09552.80 ppb
2014-01-073761-801-10101.90 ppb
2014-01-073761-802-10181.80 ppb
2014-01-073761-804-10311.90 ppb
2014-04-083761-804-10341.50 ppb
2014-04-083761-803-1000ND
2014-04-083761-802-10231.50 ppb
2014-04-083761-801-10121.30 ppb
2014-07-083761-804-12086.10 ppb
2014-07-083761-803-11354.90 ppb
2014-07-083761-802-12006.20 ppb
2014-07-083761-801-11506.40 ppb
2014-10-073761-803-10053.20 ppb
2014-10-073761-802-10292.70 ppb
2014-10-073761-804-10402.60 ppb
2014-10-073761-801-10183.10 ppb
2015-01-133761-804-1017ND
2015-01-133761-803-0946ND
2015-01-133761-802-1006ND
2015-01-133761-801-0958ND
2015-04-143761-804-10251.70 ppb
2015-04-143761-803-09501.80 ppb
2015-04-143761-801-10031.90 ppb
2015-04-143761-802-10141.70 ppb
2015-07-143761-801-09141.50 ppb
2015-07-143761-804-09362.20 ppb
2015-07-143761-803-09003.20 ppb
2015-07-143761-802-09252.00 ppb
2015-10-133761-802-0940ND
2015-10-133761-801-0931ND
2015-10-133761-804-09511.10 ppb
2015-10-133761-803-0920ND
2016-01-123761-802-0922ND
2016-01-123761-801-0911ND
2016-01-123761-804-0935ND
2016-01-123761-803-0900ND
2016-04-123761-802-0951ND
2016-04-123761-801-0940ND
2016-04-123761-804-1003ND
2016-04-123761-803-0926ND
2016-07-123761-804-1000ND
2016-07-123761-802-0946ND
2016-07-123761-801-0933ND
2016-07-123761-803-0920ND
2016-10-113761-804-1132ND
2016-10-113761-802-1118ND
2016-10-113761-803-1104ND
2016-10-113761-801-1121ND
2017-01-113761-803-1007ND
2017-01-113761-804-1035ND
2017-01-113761-802-1027ND
2017-01-113761-801-1020ND
2017-04-113761-803-1037ND
2017-04-113761-801-1049ND
2017-04-113761-802-1102ND
2017-04-113761-804-1111ND
2017-07-113761-801-1028ND
2017-07-113761-802-1035ND
2017-07-113761-804-1043ND
2017-07-113761-803-10173.20 ppb
2017-10-103761-804-1120ND
2017-10-103761-801-1101ND
2017-10-103761-803-1042ND
2017-10-103761-802-1109ND
2018-01-093761-804-1201ND
2018-01-093761-801-1138ND
2018-01-093761-802-1148ND
2018-01-093761-803-1125ND
2018-04-103761-802-1032ND
2018-04-103761-803-1012ND
2018-04-103761-804-1042ND
2018-04-103761-801-1024ND
2018-07-103761-802-1057ND
2018-07-103761-804-1107ND
2018-07-103761-803-1030ND
2018-07-103761-801-1048ND
2018-10-093761-802-1023ND
2018-10-093761-804-1037ND
2018-10-093761-803-1000ND
2018-10-093761-801-1016ND
2019-01-183761-801-0958ND
2019-01-183761-803-0938ND
2019-01-183761-802-1006ND
2019-01-183761-804-10191.80 ppb
2019-04-093761-801-1026ND
2019-04-093761-803-1013ND
2019-04-093761-804-1046ND
2019-04-093761-802-1035ND
2019-07-093761-804-1029ND
2019-07-093761-803-0946ND
2019-07-093761-801-1005ND
2019-07-093761-802-1016ND
2019-10-083761-804-1020ND
2019-10-083761-803-0947ND
2019-10-083761-801-0959ND
2019-10-083761-802-1007ND