Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Trichloroacetic acid

Sardis Water System

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)

46

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
20172.06 ppb1614ND - 3.90 ppb
20183.11 ppb16162.80 ppb - 3.30 ppb
20192.46 ppb16161.80 ppb - 2.80 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
2014-01-221272353ND
2014-01-221272352ND
2014-01-221272353ND
2014-01-221272352ND
2014-04-161293982ND
2014-04-161293983ND
2014-04-161293983ND
2014-04-161293982ND
2014-07-231320042ND
2014-07-231320043ND
2014-07-231320043ND
2014-07-231320042ND
2014-10-151342678ND
2014-10-151342679ND
2014-10-151342679ND
2014-10-151342678ND
2015-01-211366421ND
2015-01-211366422ND
2015-01-211366422ND
2015-01-211366421ND
2015-04-231389628ND
2015-04-231389629ND
2015-04-231389629ND
2015-04-231389628ND
2015-08-191420492ND
2015-08-191420491ND
2015-08-191420492ND
2015-08-191420491ND
2015-10-071433331ND
2015-10-071433332ND
2015-10-071433332ND
2015-10-071433331ND
2016-01-131458250ND
2016-01-131458251ND
2016-01-131458251ND
2016-01-131458250ND
2016-04-061480189ND
2016-04-061480188ND
2016-04-061480189ND
2016-04-061480188ND
2016-07-201509087ND
2016-07-201509088ND
2016-07-201509088ND
2016-07-201509087ND
2016-10-191534646ND
2016-10-191534647ND
2016-10-191534647ND
2016-10-191534646ND
2017-01-1935290141008ND
2017-01-19352901410071.60 ppb
2017-01-19352901410071.60 ppb
2017-01-1935290141008ND
2017-04-19353076740093.40 ppb
2017-04-19353076740093.40 ppb
2017-04-19353076740103.90 ppb
2017-04-19353076740103.90 ppb
2017-07-25353262330031.20 ppb
2017-07-25353262330041.80 ppb
2017-07-25353262330031.20 ppb
2017-07-25353262330041.80 ppb
2017-10-05353406700022.40 ppb
2017-10-05353406700012.20 ppb
2017-10-05353406700012.20 ppb
2017-10-05353406700022.40 ppb
2018-01-24353702580023.10 ppb
2018-01-24353702580013.10 ppb
2018-01-24353702580023.10 ppb
2018-01-24353702580013.10 ppb
2018-04-11353862840023.30 ppb
2018-04-11353862840023.30 ppb
2018-04-11353862840013.10 ppb
2018-04-11353862840013.10 ppb
2018-07-05354027960022.90 ppb
2018-07-05354027960012.80 ppb
2018-07-05354027960012.80 ppb
2018-07-05354027960022.90 ppb
2018-10-11354240280013.30 ppb
2018-10-11354240280023.30 ppb
2018-10-11354240280013.30 ppb
2018-10-11354240280023.30 ppb
2019-01-16354428930022.50 ppb
2019-01-16354428930012.70 ppb
2019-01-16354428930012.70 ppb
2019-01-16354428930022.50 ppb
2019-04-10354612530022.70 ppb
2019-04-10354612530022.70 ppb
2019-04-10354612530012.80 ppb
2019-04-10354612530012.80 ppb
2019-07-17354831880022.60 ppb
2019-07-17354831880011.80 ppb
2019-07-17354831880011.80 ppb
2019-07-17354831880022.60 ppb
2019-10-17355062940012.30 ppb
2019-10-17355062940022.30 ppb
2019-10-17355062940012.30 ppb
2019-10-17355062940022.30 ppb