Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Trichloroacetic acid

Laguna Madre Water District

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)

45

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20145.83 ppb16161.000 ppb - 15.6 ppb
20151.61 ppb16161.000 ppb - 2.80 ppb
20160.281 ppb164ND - 1.20 ppb
20170.150 ppb162ND - 1.30 ppb
20180.188 ppb162ND - 1.70 ppb
20190.338 ppb165ND - 1.20 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
2014-03-04AC454892.70 ppb
2014-03-04AC454553.80 ppb
2014-03-04AC454481.000 ppb
2014-03-04AC454523.00 ppb
2014-06-05AC561539.50 ppb
2014-06-05AC561512.90 ppb
2014-06-05AC5615010.1 ppb
2014-06-05AC561546.90 ppb
2014-09-25AC682941.20 ppb
2014-09-25AC683171.70 ppb
2014-09-25AC683122.50 ppb
2014-09-25AC683212.00 ppb
2014-11-18AC7240415.6 ppb
2014-11-18AC7240514.0 ppb
2014-11-18AC724115.90 ppb
2014-11-18AC7241010.5 ppb
2015-02-26AC820582.10 ppb
2015-02-26AC820551.70 ppb
2015-02-26AC820741.000 ppb
2015-02-26AC820752.80 ppb
2015-06-16AC961741.50 ppb
2015-06-16AC961712.20 ppb
2015-06-16AC961851.70 ppb
2015-06-16AC961801.50 ppb
2015-09-25AD086841.10 ppb
2015-09-25AD087191.20 ppb
2015-09-25AD087241.30 ppb
2015-09-25AD086831.000 ppb
2015-11-12AD133511.40 ppb
2015-11-12AD133501.40 ppb
2015-11-12AD133582.00 ppb
2015-11-12AD133621.80 ppb
2016-03-10AD28195ND
2016-03-10AD28178ND
2016-03-10AD28193ND
2016-03-10AD281971.000 ppb
2016-05-18AD37219ND
2016-05-18AD37223ND
2016-05-18AD37240ND
2016-05-18AD37222ND
2016-07-27AD459471.10 ppb
2016-07-27AD459461.20 ppb
2016-07-27AD45939ND
2016-07-27AD459451.20 ppb
2016-12-08AD61133ND
2016-12-08AD61131ND
2016-12-08AD61129ND
2016-12-08AD61134ND
2017-03-02AD73068ND
2017-03-02AD73075ND
2017-03-02AD73069ND
2017-03-02AD73074ND
2017-05-16AD84812ND
2017-05-16AD84824ND
2017-05-16AD84817ND
2017-05-16AD84827ND
2017-08-17AD93363ND
2017-08-17AD93361ND
2017-08-17AD93365ND
2017-08-17AD93367ND
2017-11-29AE061041.30 ppb
2017-11-29AE06111ND
2017-11-29AE06113ND
2017-11-29AE061051.10 ppb
2018-02-22AE15002ND
2018-02-22AE15034ND
2018-02-22AE15026ND
2018-02-22AE15012ND
2018-06-07AE28961ND
2018-06-07AE28963ND
2018-06-07AE28962ND
2018-06-07AE28958ND
2018-08-08AE36100ND
2018-08-08AE36107ND
2018-08-08AE36108ND
2018-08-08AE36101ND
2018-11-27AE469791.70 ppb
2018-11-27AE46976ND
2018-11-27AE46987ND
2018-11-27AE469801.30 ppb
2019-02-05AE528771.000 ppb
2019-02-05AE528781.20 ppb
2019-02-05AE528631.20 ppb
2019-02-05AE528571.000 ppb
2019-05-07AE65119ND
2019-05-07AE651241.000 ppb
2019-05-07AE65096ND
2019-05-07AE65126ND
2019-07-17AE74782ND
2019-07-17AE74789ND
2019-07-17AE74783ND
2019-07-17AE74846ND
2019-10-09AE86131ND
2019-10-09AE86107ND
2019-10-09AE86106ND
2019-10-09AE86130ND