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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

East Central Bossier 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)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND120ND
2016ND200ND
20170.0800 ppb162ND - 0.640 ppb
20180.190 ppb164ND - 0.970 ppb
20190.208 ppb168ND - 0.480 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
2014-02-141278115ND
2014-02-141278114ND
2014-02-141278115ND
2014-02-141278114ND
2014-05-281305272ND
2014-05-281305273ND
2014-05-281305273ND
2014-05-281305272ND
2014-08-151326928ND
2014-08-151326929ND
2014-08-151326929ND
2014-08-151326928ND
2014-12-081356090ND
2014-12-081356091ND
2014-12-081356091ND
2014-12-081356090ND
2015-05-121394275ND
2015-05-121394276ND
2015-05-121394276ND
2015-05-121394275ND
2015-08-071417256ND
2015-08-071417257ND
2015-08-071417257ND
2015-08-071417256ND
2015-11-051441697ND
2015-11-051441696ND
2015-11-051441697ND
2015-11-051441696ND
2016-02-191468994ND
2016-02-191468995ND
2016-02-191468995ND
2016-02-191468994ND
2016-03-181475988ND
2016-03-181475989ND
2016-03-181475989ND
2016-03-181475988ND
2016-05-031487935ND
2016-05-031487934ND
2016-05-031487935ND
2016-05-031487934ND
2016-09-301529301ND
2016-09-301529302ND
2016-09-301529302ND
2016-09-301529301ND
2016-11-181542488ND
2016-11-181542489ND
2016-11-181542489ND
2016-11-181542488ND
2017-02-2235296880012ND
2017-02-2235296880011ND
2017-02-2235296880011ND
2017-02-2235296880012ND
2017-05-1735313429021ND
2017-05-1735313429021ND
2017-05-1735313429022ND
2017-05-1735313429022ND
2017-08-0835329950050ND
2017-08-0835329950050ND
2017-09-2235339070022ND
2017-09-2235339070022ND
2017-11-16353495120020.640 ppb
2017-11-1635349512001ND
2017-11-1635349512001ND
2017-11-16353495120020.640 ppb
2018-02-1535375101002ND
2018-02-1535375101001ND
2018-02-1535375101002ND
2018-02-1535375101001ND
2018-05-1035392010002ND
2018-05-1035392010002ND
2018-05-1035392010001ND
2018-05-1035392010001ND
2018-08-1435411594002ND
2018-08-1435411594001ND
2018-08-1435411594001ND
2018-08-1435411594002ND
2018-11-02354281870010.550 ppb
2018-11-02354281870020.970 ppb
2018-11-02354281870010.550 ppb
2018-11-02354281870020.970 ppb
2019-02-20354502400020.470 ppb
2019-02-2035450240001ND
2019-02-2035450240001ND
2019-02-20354502400020.470 ppb
2019-05-0835468307002ND
2019-05-0835468307002ND
2019-05-0835468307001ND
2019-05-0835468307001ND
2019-08-13354911680020.310 ppb
2019-08-13354911680010.400 ppb
2019-08-13354911680010.400 ppb
2019-08-13354911680020.310 ppb
2019-11-14355128090010.480 ppb
2019-11-1435512809002ND
2019-11-14355128090010.480 ppb
2019-11-1435512809002ND