Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Trichloroacetic acid

Naval Base Ventura County, Port Hueneme

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

 

104

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
20190.125 ppb242ND - 2.00 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
2014-02-055867-006-0855ND
2014-02-055867-007-1125ND
2014-02-055867-008-1045ND
2014-02-055867-009-1100ND
2014-06-115867-006-1055ND
2014-06-115867-007-1025ND
2014-06-115867-008-0745ND
2014-06-115867-009-1010ND
2014-08-065867-006-0923ND
2014-08-065867-007-1124ND
2014-08-065867-008-1030ND
2014-08-065867-009-1106ND
2014-11-195867-006-1220ND
2014-11-195867-007-1115ND
2014-11-195867-008-1155ND
2014-11-195867-009-1050ND
2015-03-255867-006-0913ND
2015-03-255867-007-0959ND
2015-03-255867-008-1035ND
2015-03-255867-009-1121ND
2015-05-065867-006-0930ND
2015-05-065867-007-0910ND
2015-05-065867-008-1010ND
2015-05-065867-009-1030ND
2015-08-055867-006-1000ND
2015-08-055867-007-0930ND
2015-08-055867-008-0915ND
2015-08-055867-009-0900ND
2015-11-045867-006-1000ND
2015-11-045867-007-1030ND
2015-11-045867-008-0930ND
2015-11-045867-009-1050ND
2016-02-035867-006-0915ND
2016-02-035867-007-0945ND
2016-02-035867-008-1030ND
2016-02-035867-009-1055ND
2016-05-045867-006-0904ND
2016-05-045867-007-1001ND
2016-05-045867-008-1025ND
2016-05-045867-009-1055ND
2016-08-105867-006-0950ND
2016-08-105867-007-0900ND
2016-08-105867-008-1010ND
2016-08-105867-009-1040ND
2016-11-025867-006-0930ND
2016-11-025867-007-1000ND
2016-11-025867-008-1050ND
2016-11-025867-009-1020ND
2017-02-015867-006-0917ND
2017-02-015867-007-1030ND
2017-02-015867-008-0956ND
2017-02-015867-009-1109ND
2017-05-035867-006-0942ND
2017-05-035867-007-1051ND
2017-05-035867-008-1024ND
2017-05-035867-009-1131ND
2017-08-095867-006-1005ND
2017-08-095867-007-0945ND
2017-08-095867-008-0910ND
2017-08-095867-009-0925ND
2017-11-225867-006-1010ND
2017-11-225867-007-1020ND
2017-11-225867-008-0945ND
2017-11-225867-009-0925ND
2018-02-075867-006-1030ND
2018-02-075867-007-1100ND
2018-02-075867-008-0925ND
2018-02-075867-009-1000ND
2018-05-025867-006-0921ND
2018-05-025867-007-1107ND
2018-05-025867-008-1001ND
2018-05-025867-009-1137ND
2018-08-015867-006-0945ND
2018-08-015867-007-1016ND
2018-08-015867-008-0920ND
2018-08-015867-009-1105ND
2018-11-075867-006-0928ND
2018-11-075867-007-1101ND
2018-11-075867-008-1030ND
2018-11-075867-009-1120ND
2019-02-065867-006-1053ND
2019-02-065867-007-1036ND
2019-02-065867-008-0928ND
2019-02-065867-009-1003ND
2019-05-015867-006-0912ND
2019-05-015867-007-1148ND
2019-05-015867-008-1036ND
2019-05-015867-009-1118ND
2019-09-185867-006-1014ND
2019-09-185867-007-0939ND
2019-09-185867-008-1037ND
2019-09-185867-009-1037ND
2019-10-165867-006-0945ND
2019-10-165867-007-1110ND
2019-10-165867-008-10401.000 ppb
2019-10-165867-009-11002.00 ppb
2019-11-065867-006-0900ND
2019-11-065867-007-1100ND
2019-11-065867-008-1020ND
2019-11-065867-009-1040ND
2019-12-235867-006-0847ND
2019-12-235867-007-0937ND
2019-12-235867-008-1011ND
2019-12-235867-009-1107ND