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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Universal City

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)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-03-24AC47956ND
2014-03-24AC47951ND
2014-03-24AC47952ND
2014-03-24AC47961ND
2014-04-17AC51044ND
2014-04-17AC51042ND
2014-04-17AC51062ND
2014-04-17AC51063ND
2014-09-04AC65907ND
2014-09-04AC65903ND
2014-09-04AC65906ND
2014-09-04AC65908ND
2014-10-24AC70566ND
2014-10-24AC70603ND
2014-10-24AC70605ND
2014-10-24AC70583ND
2015-02-19AC81146ND
2015-02-19AC81149ND
2015-02-19AC81148ND
2015-02-19AC81161ND
2015-04-29AC89838ND
2015-04-29AC89842ND
2015-04-29AC89840ND
2015-04-29AC89837ND
2015-07-28AD01228ND
2015-07-28AD01220ND
2015-07-28AD01224ND
2015-07-28AD01208ND
2015-11-10AD13320ND
2015-11-10AD13322ND
2015-11-10AD13319ND
2015-11-10AD13321ND
2016-03-24AD30384ND
2016-03-24AD30383ND
2016-03-24AD30385ND
2016-03-24AD30382ND
2016-06-03AD39376ND
2016-06-03AD39391ND
2016-06-03AD39375ND
2016-06-03AD39381ND
2016-08-01AD46367ND
2016-08-01AD46389ND
2016-08-01AD46369ND
2016-08-01AD46390ND
2016-11-18AD58795ND
2016-11-18AD58805ND
2016-11-18AD58799ND
2016-11-18AD58798ND
2017-01-09AD63540ND
2017-01-09AD63544ND
2017-01-09AD63546ND
2017-01-09AD63539ND
2017-04-05AD78539ND
2017-04-05AD78540ND
2017-04-05AD78542ND
2017-04-05AD78537ND
2017-07-05AD88291ND
2017-07-05AD88296ND
2017-07-05AD88293ND
2017-07-05AD88297ND
2017-10-13AE00795ND
2017-10-13AE00798ND
2017-10-13AE00796ND
2017-10-13AE00797ND
2018-01-09AE08304ND
2018-01-09AE08297ND
2018-01-09AE08296ND
2018-01-09AE08306ND
2018-04-09AE21601ND
2018-04-09AE21603ND
2018-04-09AE21600ND
2018-04-09AE21607ND
2018-07-13AE33327ND
2018-07-13AE33328ND
2018-07-13AE33334ND
2018-07-13AE33333ND
2018-10-10AE43105ND
2018-10-10AE43102ND
2018-10-10AE43086ND
2018-10-10AE43099ND
2019-01-24AE51234ND
2019-01-24AE51220ND
2019-01-24AE51215ND
2019-01-24AE51214ND
2019-04-10AE61797ND
2019-04-10AE61808ND
2019-04-10AE61802ND
2019-04-10AE61798ND
2019-07-10AE73870ND
2019-07-10AE73877ND
2019-07-10AE73871ND
2019-07-10AE73878ND
2019-10-03AE85679ND
2019-10-03AE85672ND
2019-10-03AE85674ND
2019-10-03AE85673ND