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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Vaughn WC Inc

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
20160.0625 ppb161ND - 1.000 ppb
2017ND160ND
2018ND170ND
2019ND160ND

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
2014-02-255867-902-1345ND
2014-02-255867-900-1405ND
2014-02-255867-901-1440ND
2014-02-255867-903-1425ND
2014-05-285867-903-1515ND
2014-05-285867-902-1600ND
2014-05-285867-901-1515ND
2014-05-285867-900-1545ND
2014-08-275867-903-1109ND
2014-08-275867-902-1315ND
2014-08-275867-901-1150ND
2014-08-275867-900-1410ND
2014-11-245867-902-1505ND
2014-11-245867-901-1650ND
2014-11-245867-903-1610ND
2014-11-245867-900-1525ND
2015-02-265867-903-1405ND
2015-02-265867-902-1310ND
2015-02-265867-901-1420ND
2015-02-265867-900-1350ND
2015-05-275867-903-1145ND
2015-05-275867-902-1107ND
2015-05-275867-900-1125ND
2015-05-275867-901-1211ND
2015-08-275867-901-1150ND
2015-08-275867-900-1250ND
2015-08-275867-903-1050ND
2015-08-275867-902-1330ND
2015-11-195867-901-1245ND
2015-11-195867-900-1120ND
2015-11-195867-903-1145ND
2015-11-195867-902-1100ND
2016-02-195867-901-1220ND
2016-02-195867-900-1145ND
2016-02-195867-903-1200ND
2016-02-195867-902-1130ND
2016-05-245867-903-1415ND
2016-05-255867-901-1400ND
2016-05-255867-900-1125ND
2016-05-255867-902-1150ND
2016-08-315867-901-1240ND
2016-08-315867-900-14201.000 ppb
2016-08-315867-903-1337ND
2016-08-315867-902-1440ND
2016-11-235867-900-1045ND
2016-11-235867-902-1030ND
2016-11-235867-903-1100ND
2016-11-235867-901-1115ND
2017-02-105867-901-1455ND
2017-02-105867-900-1410ND
2017-02-105867-902-1350ND
2017-02-105867-903-1425ND
2017-05-035867-901-1410ND
2017-05-035867-900-1445ND
2017-05-035867-903-1435ND
2017-05-035867-902-1455ND
2017-08-175867-901-1510ND
2017-08-175867-900-1400ND
2017-08-175867-903-1420ND
2017-08-175867-902-1330ND
2017-12-215867-903-1230ND
2017-12-215867-901-1320ND
2017-12-215867-900-1205ND
2017-12-215867-902-1150ND
2018-02-125867-901-1320ND
2018-02-125867-903-1228ND
2018-02-125867-900-1340ND
2018-02-125867-902-1355ND
2018-05-235867-900-1230ND
2018-05-235867-903-1200ND
2018-05-235867-902-1240ND
2018-05-235867-901-1100ND
2018-07-245867-900-1505ND
2018-08-105867-901-1420ND
2018-08-105867-903-1515ND
2018-08-105867-902-1330ND
2018-08-105867-900-1540ND
2018-11-155867-903-1420ND
2018-11-155867-901-1315ND
2018-11-155867-900-1430ND
2018-11-155867-902-1440ND
2019-02-215867-900-1030ND
2019-02-215867-902-1325ND
2019-02-215867-901-1220ND
2019-02-215867-903-1045ND
2019-05-285867-901-1255ND
2019-05-285867-900-1115ND
2019-05-285867-903-1305ND
2019-05-285867-902-1130ND
2019-08-215867-901-1140ND
2019-08-215867-900-0950ND
2019-08-215867-902-1040ND
2019-08-215867-903-1245ND
2019-11-225867-901-1240ND
2019-11-225867-902-1125ND
2019-11-225867-900-1110ND
2019-11-225867-903-1300ND