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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Orchard Dale 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)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
20160.250 ppb164ND - 1.000 ppb
2017ND160ND
2018ND160ND
20190.138 ppb162ND - 1.10 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
2014-03-043761-802-0947ND
2014-03-043761-800-0928ND
2014-03-043761-801-0935ND
2014-03-043761-803-1056ND
2014-06-033761-803-1130ND
2014-06-033761-802-0940ND
2014-06-033761-801-1055ND
2014-06-033761-800-0930ND
2014-09-023761-803-1115ND
2014-09-023761-802-1035ND
2014-09-023761-801-1050ND
2014-09-023761-800-0925ND
2014-12-093761-802-1120ND
2014-12-093761-801-1050ND
2014-12-093761-803-1135ND
2014-12-093761-800-0945ND
2015-03-033761-803-1140ND
2015-03-033761-802-0950ND
2015-03-033761-801-1115ND
2015-03-033761-800-0940ND
2015-06-023761-803-1135ND
2015-06-023761-802-1055ND
2015-06-023761-800-0955ND
2015-06-023761-801-1110ND
2015-09-013761-800-0911ND
2015-09-013761-803-1050ND
2015-09-013761-802-0933ND
2015-09-013761-801-0923ND
2015-12-013761-801-0915ND
2015-12-013761-800-0900ND
2015-12-013761-803-1100ND
2015-12-013761-802-0930ND
2016-03-013761-801-1030ND
2016-03-013761-800-0900ND
2016-03-013761-803-1100ND
2016-03-013761-802-1015ND
2016-06-073761-801-1116ND
2016-06-073761-800-0905ND
2016-06-073761-803-1100ND
2016-06-073761-802-1017ND
2016-09-063761-803-11001.000 ppb
2016-09-063761-801-10151.000 ppb
2016-09-063761-800-08451.000 ppb
2016-09-063761-802-08551.000 ppb
2016-12-063761-803-1105ND
2016-12-063761-801-1035ND
2016-12-063761-802-0930ND
2016-12-063761-800-0915ND
2017-03-143761-802-0915ND
2017-03-143761-803-1100ND
2017-03-143761-801-1030ND
2017-03-143761-800-0900ND
2017-06-063761-802-0930ND
2017-06-063761-800-0915ND
2017-06-063761-801-1045ND
2017-06-063761-803-1115ND
2017-09-053761-800-0911ND
2017-09-053761-801-0916ND
2017-09-053761-803-1107ND
2017-09-053761-802-1024ND
2017-12-053761-803-1100ND
2017-12-053761-800-0915ND
2017-12-053761-802-0930ND
2017-12-053761-801-0945ND
2018-03-063761-803-0850ND
2018-03-063761-800-0810ND
2018-03-063761-801-0821ND
2018-03-063761-802-0833ND
2018-06-053761-801-0930ND
2018-06-053761-802-1100ND
2018-06-053761-803-1000ND
2018-06-053761-800-0915ND
2018-09-043761-801-1030ND
2018-09-043761-803-1100ND
2018-09-043761-802-0930ND
2018-09-043761-800-0915ND
2018-12-043761-801-0947ND
2018-12-043761-803-1037ND
2018-12-043761-802-0956ND
2018-12-043761-800-0932ND
2019-03-053761-800-0942ND
2019-03-053761-802-1004ND
2019-03-053761-801-0951ND
2019-03-053761-803-1040ND
2019-06-043761-800-0926ND
2019-06-043761-802-0948ND
2019-06-043761-803-1023ND
2019-06-043761-801-0940ND
2019-09-033761-803-1055ND
2019-09-033761-802-1028ND
2019-09-033761-800-1011ND
2019-09-033761-801-1017ND
2019-12-033761-803-1005ND
2019-12-033761-802-09501.10 ppb
2019-12-033761-800-09051.10 ppb
2019-12-033761-801-0911ND