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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

City of Cedar Hill

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.

 

94

Samples

0

Samples exceeding legal limit (MCL)

70

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.34 ppb1413ND - 1.70 ppb
20130.263 ppb164ND - 1.10 ppb
20141.48 ppb16161.000 ppb - 2.00 ppb
20151.68 ppb1612ND - 3.40 ppb
20161.97 ppb1613ND - 6.40 ppb
20171.17 ppb1612ND - 2.90 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as 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
2012-03-0712033290031.40 ppb
2012-03-071203329004ND
2012-06-1212064330051.70 ppb
2012-06-1212064330081.70 ppb
2012-06-1212064330071.60 ppb
2012-06-1212064330061.50 ppb
2012-09-1312094550091.40 ppb
2012-09-1312094550101.50 ppb
2012-09-1312094550111.50 ppb
2012-09-1312094550121.50 ppb
2012-12-0312121160051.20 ppb
2012-12-0312121160061.30 ppb
2012-12-0312121160071.30 ppb
2012-12-0312121160081.20 ppb
2013-01-281301772008ND
2013-01-281301772007ND
2013-01-281301772006ND
2013-01-281301772005ND
2013-04-2513049410061.10 ppb
2013-04-2513049410071.10 ppb
2013-04-2513049410081.000 ppb
2013-04-2513049410091.000 ppb
2013-07-23Q1304170001ND
2013-07-23Q1304170002ND
2013-07-23Q1304170003ND
2013-07-23Q1304170004ND
2013-10-28Q1309983004ND
2013-10-28Q1309983003ND
2013-10-28Q1309983002ND
2013-10-28Q1309983001ND
2014-03-17Q14084740012.00 ppb
2014-03-17Q14084740021.60 ppb
2014-03-17Q14084740031.50 ppb
2014-03-17Q14084740041.60 ppb
2014-06-03Q14188460011.50 ppb
2014-06-03Q14188460031.20 ppb
2014-06-03Q14188460021.20 ppb
2014-06-03Q14188460041.30 ppb
2014-09-18Q14456800032.00 ppb
2014-09-18Q14456800041.50 ppb
2014-09-18Q14456800051.90 ppb
2014-09-18Q14456800061.80 ppb
2014-12-04Q14586590041.20 ppb
2014-12-04Q14586590031.000 ppb
2014-12-04Q14586590021.10 ppb
2014-12-04Q14586590011.20 ppb
2015-03-10Q1508660003ND
2015-03-10Q1508660002ND
2015-03-10Q1508660004ND
2015-03-10Q15086600011.000 ppb
2015-06-04Q15206270012.40 ppb
2015-06-04Q15206270023.40 ppb
2015-06-04Q15206270033.30 ppb
2015-06-04Q15206270043.10 ppb
2015-08-18Q15326670071.60 ppb
2015-08-18Q15326670061.60 ppb
2015-08-18Q15326670051.60 ppb
2015-08-18Q1532667004ND
2015-10-21Q15413840012.50 ppb
2015-10-21Q15413840022.10 ppb
2015-10-21Q15413840032.00 ppb
2015-10-21Q15413840042.20 ppb
2016-01-21Q16028110042.00 ppb
2016-01-21Q16028110031.80 ppb
2016-01-21Q16028110021.80 ppb
2016-01-21Q16028110016.40 ppb
2016-04-27Q16166380014.40 ppb
2016-04-27Q1616638002ND
2016-04-27Q1616638003ND
2016-04-27Q1616638004ND
2016-08-02Q16320980031.80 ppb
2016-08-02Q16320980012.30 ppb
2016-08-02Q16320980022.00 ppb
2016-08-02Q16320980041.40 ppb
2016-10-07Q16431320111.90 ppb
2016-10-07Q16431320101.90 ppb
2016-10-07Q16431320091.80 ppb
2016-10-07Q16431320082.00 ppb
2017-01-11Q17015530052.90 ppb
2017-01-11Q17015530031.30 ppb
2017-01-11Q17015530061.50 ppb
2017-01-11Q17015530041.40 ppb
2017-04-12Q17152610041.80 ppb
2017-04-12Q17152610021.60 ppb
2017-04-12Q17152610011.50 ppb
2017-04-12Q17152610031.60 ppb
2017-07-26Q1731046002ND
2017-07-26Q1731046003ND
2017-07-26Q1731046004ND
2017-07-26Q1731046001ND
2017-11-08Q17573390021.30 ppb
2017-11-08Q17573390041.20 ppb
2017-11-08Q17573390011.20 ppb
2017-11-08Q17573390031.40 ppb