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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Soquel Creek 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

 

137

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0846 ppb262ND - 1.10 ppb
2015ND160ND
2016ND160ND
2017ND160ND
20182.00 ppb222ND - 36.0 ppb
20195.39 ppb4118ND - 59.0 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
2014-01-221644-801-1240ND
2014-01-221644-802-1207ND
2014-01-221644-803-1420ND
2014-01-221644-804-1345ND
2014-02-259590-801-1445ND
2014-02-259590-801-1447ND
2014-02-251644-801-1452ND
2014-02-255806-801-1452ND
2014-02-255806-801-14561.10 ppb
2014-02-259590-804-1520ND
2014-02-251644-804-1522ND
2014-02-259590-804-1524ND
2014-02-255806-804-1527ND
2014-02-255806-804-15291.10 ppb
2014-04-249590-801-1030ND
2014-04-249590-802-1105ND
2014-04-249590-803-1305ND
2014-04-249590-804-1335ND
2014-07-229590-801-1427ND
2014-07-229590-802-1400ND
2014-07-229590-803-1338ND
2014-07-229590-804-1300ND
2014-10-209590-801-0950ND
2014-10-209590-802-1025ND
2014-10-209590-803-1115ND
2014-10-209590-804-1315ND
2015-01-219590-801-1055ND
2015-01-219590-802-1125ND
2015-01-219590-803-1155ND
2015-01-219590-804-1225ND
2015-04-239590-801-1057ND
2015-04-239590-802-1132ND
2015-04-239590-803-1227ND
2015-04-239590-804-1255ND
2015-07-219590-801-1437ND
2015-07-219590-802-1458ND
2015-07-219590-803-1014ND
2015-07-219590-804-1520ND
2015-10-229590-801-1530ND
2015-10-229590-802-1511ND
2015-10-229590-803-1422ND
2015-10-229590-804-1452ND
2016-01-219590-801-0922ND
2016-01-219590-802-1003ND
2016-01-219590-803-1404ND
2016-01-219590-804-1250ND
2016-04-219590-801-0939ND
2016-04-219590-802-1337ND
2016-04-219590-803-1023ND
2016-04-219590-804-1432ND
2016-07-189590-801-1323ND
2016-07-189590-802-1352ND
2016-07-189590-803-1458ND
2016-07-189590-804-1432ND
2016-10-199590-801-1058ND
2016-10-199590-802-1122ND
2016-10-199590-803-1144ND
2016-10-199590-804-1400ND
2017-01-179590-801-1144ND
2017-01-179590-802-1043ND
2017-01-179590-803-0939ND
2017-01-179590-804-1011ND
2017-04-199590-801-1203ND
2017-04-199590-802-1322ND
2017-04-199590-803-1428ND
2017-04-199590-804-1355ND
2017-07-199590-801-1640ND
2017-07-199590-802-1609ND
2017-07-199590-803-1504ND
2017-07-199590-804-1541ND
2017-10-199590-801-1009ND
2017-10-199590-802-1104ND
2017-10-199590-803-1157ND
2017-10-199590-804-1303ND
2018-01-189590-801-1040ND
2018-01-189590-802-1058ND
2018-01-189590-803-1125ND
2018-01-189590-804-1153ND
2018-04-179590-801-1122ND
2018-04-179590-802-1153ND
2018-04-179590-803-1217ND
2018-04-179590-804-1244ND
2018-07-179590-801-1022ND
2018-07-179590-802-0944ND
2018-07-179590-803-0822ND
2018-07-179590-804-0858ND
2018-10-189590-801-0933ND
2018-10-189590-802-1012ND
2018-10-189590-803-1049ND
2018-10-189590-804-1153ND
2018-10-245867-805-1150ND
2018-11-065867-805-1242ND
2018-11-099590-055-1430ND
2018-11-195867-805-1110ND
2018-12-045867-805-12518.00 ppb
2018-12-185867-805-114036.0 ppb
2019-01-089590-054-1206ND
2019-01-155867-805-124311.0 ppb
2019-01-169590-054-1132ND
2019-01-239590-801-1254ND
2019-01-239590-802-1228ND
2019-01-239590-803-1122ND
2019-01-239590-804-1153ND
2019-01-239590-805-131414.0 ppb
2019-01-295867-805-112518.0 ppb
2019-02-125867-805-11584.00 ppb
2019-02-265867-805-121928.0 ppb
2019-03-135867-805-130059.0 ppb
2019-03-265867-805-113628.0 ppb
2019-04-095867-805-130717.0 ppb
2019-04-179590-801-1050ND
2019-04-179590-802-1120ND
2019-04-179590-803-1300ND
2019-04-179590-804-1215ND
2019-04-179590-805-134012.0 ppb
2019-04-235867-805-114213.0 ppb
2019-05-075867-805-11092.00 ppb
2019-05-215867-805-10291.000 ppb
2019-06-055867-805-1242ND
2019-07-029588-805-1211ND
2019-07-159590-801-1026ND
2019-07-159590-802-0946ND
2019-07-159590-803-1300ND
2019-07-159590-804-1417ND
2019-07-159590-805-0840ND
2019-07-165867-805-1212ND
2019-07-315867-805-1121ND
2019-10-085867-801-1335ND
2019-10-229590-801-08501.10 ppb
2019-10-229590-802-0915ND
2019-10-229590-803-0945ND
2019-10-229590-804-10351.000 ppb
2019-10-229590-805-1115ND
2019-11-055867-801-12091.000 ppb
2019-11-195867-801-11491.000 ppb
2019-12-035867-801-11552.00 ppb
2019-12-175867-801-12208.00 ppb