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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Fountain Valley

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.666 ppb328ND - 3.60 ppb
20150.750 ppb3210ND - 3.80 ppb
20160.169 ppb322ND - 3.30 ppb
20170.368 ppb406ND - 5.20 ppb
20180.388 ppb246ND - 2.20 ppb
2019ND320ND

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
2014-03-173761-801-12222.70 ppb
2014-03-173761-802-14491.80 ppb
2014-03-173761-803-15091.70 ppb
2014-03-173761-804-15181.90 ppb
2014-03-173761-805-12023.60 ppb
2014-03-173761-806-11493.20 ppb
2014-03-173761-807-11323.20 ppb
2014-03-173761-808-12103.20 ppb
2014-06-293761-801-1109ND
2014-06-293761-802-1116ND
2014-06-293761-803-1129ND
2014-06-293761-804-1137ND
2014-06-293761-805-1101ND
2014-06-293761-806-1043ND
2014-06-293761-807-1035ND
2014-06-293761-808-1050ND
2014-09-083761-801-1241ND
2014-09-083761-802-1425ND
2014-09-083761-803-1432ND
2014-09-083761-804-1440ND
2014-09-083761-805-1232ND
2014-09-083761-806-1158ND
2014-09-083761-807-1149ND
2014-09-083761-808-1206ND
2014-12-223761-801-1105ND
2014-12-223761-802-1300ND
2014-12-223761-803-1310ND
2014-12-223761-804-1315ND
2014-12-223761-805-1045ND
2014-12-223761-806-1025ND
2014-12-223761-807-1015ND
2014-12-223761-808-1300ND
2015-03-093761-801-0950ND
2015-03-093761-802-1225ND
2015-03-093761-803-1240ND
2015-03-093761-804-1255ND
2015-03-093761-805-0930ND
2015-03-093761-806-0900ND
2015-03-093761-807-0850ND
2015-03-093761-808-1210ND
2015-06-013761-801-1035ND
2015-06-013761-802-1240ND
2015-06-013761-803-1250ND
2015-06-013761-804-1300ND
2015-06-013761-805-1015ND
2015-06-013761-806-0950ND
2015-06-013761-807-0940ND
2015-06-013761-808-1415ND
2015-09-073761-801-06302.90 ppb
2015-09-073761-802-08303.30 ppb
2015-09-073761-803-08402.90 ppb
2015-09-073761-804-08503.20 ppb
2015-09-073761-805-06102.20 ppb
2015-09-073761-806-0550ND
2015-09-073761-807-0540ND
2015-09-073761-808-10003.80 ppb
2015-12-073761-801-07501.20 ppb
2015-12-073761-802-10001.40 ppb
2015-12-073761-803-1015ND
2015-12-073761-804-1030ND
2015-12-073761-805-0725ND
2015-12-073761-806-07001.30 ppb
2015-12-073761-807-0645ND
2015-12-073761-808-11451.80 ppb
2016-03-073761-801-0935ND
2016-03-073761-802-1150ND
2016-03-073761-803-1200ND
2016-03-073761-804-1210ND
2016-03-073761-805-0915ND
2016-03-073761-806-0855ND
2016-03-073761-807-0845ND
2016-03-073761-808-1140ND
2016-06-063761-801-1130ND
2016-06-063761-802-1330ND
2016-06-063761-803-1340ND
2016-06-063761-804-1350ND
2016-06-063761-805-1110ND
2016-06-063761-806-1050ND
2016-06-063761-807-1040ND
2016-06-063761-808-1500ND
2016-09-053761-801-0730ND
2016-09-053761-802-0930ND
2016-09-053761-803-0940ND
2016-09-053761-804-0950ND
2016-09-053761-805-0710ND
2016-09-053761-806-0650ND
2016-09-053761-807-0640ND
2016-09-053761-808-11003.30 ppb
2016-12-053761-801-1030ND
2016-12-053761-802-1230ND
2016-12-053761-803-1240ND
2016-12-053761-804-1250ND
2016-12-053761-805-1010ND
2016-12-053761-806-0950ND
2016-12-053761-807-0940ND
2016-12-053761-808-14002.10 ppb
2017-02-273761-801-1030ND
2017-02-273761-802-1230ND
2017-02-273761-803-1240ND
2017-02-273761-804-1250ND
2017-02-273761-805-1010ND
2017-02-273761-806-0950ND
2017-02-273761-807-0940ND
2017-02-273761-808-14005.20 ppb
2017-06-053761-801-1030ND
2017-06-053761-802-1230ND
2017-06-053761-803-1240ND
2017-06-053761-804-1250ND
2017-06-053761-805-1010ND
2017-06-053761-806-0950ND
2017-06-053761-807-0940ND
2017-06-053761-808-1400ND
2017-09-043761-801-0830ND
2017-09-043761-802-1030ND
2017-09-043761-803-1040ND
2017-09-043761-804-1050ND
2017-09-043761-805-0810ND
2017-09-043761-806-0750ND
2017-09-043761-807-0740ND
2017-09-043761-808-1200ND
2017-12-043761-801-1040ND
2017-12-043761-802-1240ND
2017-12-043761-803-1250ND
2017-12-043761-804-1300ND
2017-12-043761-805-1020ND
2017-12-043761-806-1000ND
2017-12-043761-807-0950ND
2017-12-043761-808-1035ND
2017-12-153761-801-1148ND
2017-12-153761-802-11571.30 ppb
2017-12-153761-803-1205ND
2017-12-153761-804-1213ND
2017-12-153761-805-11402.40 ppb
2017-12-153761-806-11222.20 ppb
2017-12-153761-807-11101.80 ppb
2017-12-153761-808-11301.80 ppb
2018-06-113761-801-10001.20 ppb
2018-06-113761-802-12001.30 ppb
2018-06-113761-803-1210ND
2018-06-113761-804-12201.10 ppb
2018-06-113761-805-0940ND
2018-06-113761-806-0920ND
2018-06-113761-807-09102.10 ppb
2018-06-113761-808-09552.20 ppb
2018-09-103761-801-1000ND
2018-09-103761-802-1200ND
2018-09-103761-803-1210ND
2018-09-103761-804-1220ND
2018-09-103761-805-0940ND
2018-09-103761-806-0920ND
2018-09-103761-807-0910ND
2018-09-103761-808-1230ND
2018-12-103761-801-0950ND
2018-12-103761-802-1150ND
2018-12-103761-803-1200ND
2018-12-103761-804-1210ND
2018-12-103761-805-0930ND
2018-12-103761-806-0910ND
2018-12-103761-807-0900ND
2018-12-103761-808-09451.40 ppb
2019-03-113761-801-0950ND
2019-03-113761-802-1150ND
2019-03-113761-803-1200ND
2019-03-113761-804-1210ND
2019-03-113761-805-0930ND
2019-03-113761-806-0910ND
2019-03-113761-807-0900ND
2019-03-113761-808-1320ND
2019-06-103761-801-1030ND
2019-06-103761-802-1230ND
2019-06-103761-803-1240ND
2019-06-103761-804-1250ND
2019-06-103761-805-1010ND
2019-06-103761-806-0950ND
2019-06-103761-807-0940ND
2019-06-103761-808-1400ND
2019-09-093761-801-0930ND
2019-09-093761-802-1140ND
2019-09-093761-803-1150ND
2019-09-093761-804-1200ND
2019-09-093761-805-0920ND
2019-09-093761-806-0900ND
2019-09-093761-807-0850ND
2019-09-093761-808-1310ND
2019-12-093761-801-1210ND
2019-12-093761-802-0910ND
2019-12-093761-803-0920ND
2019-12-093761-804-0930ND
2019-12-093761-805-1150ND
2019-12-093761-806-1130ND
2019-12-093761-807-1120ND
2019-12-093761-808-1205ND