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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Rehoboth 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

 

81

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND160ND
2016ND120ND
2017ND120ND
2018ND160ND
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
2014-03-05L4969643-4ND
2014-03-05L4969643-3ND
2014-03-05L4969643-2ND
2014-03-05L4969643-1ND
2014-06-02L5093027-4ND
2014-06-02L5093027-3ND
2014-06-02L5093027-2ND
2014-06-02L5093027-1ND
2014-09-03L5235617-1ND
2015-03-02L5484012-4ND
2015-03-02L5484012-3ND
2015-03-02L5484012-2ND
2015-03-02L5484012-1ND
2015-06-01L5627965-4-HAA5ND
2015-06-01L5627965-3-HAA5ND
2015-06-01L5627965-2-HAA5ND
2015-06-01L5627965-1-HAA5ND
2015-09-09L5810498-2 HAA5ND
2015-09-09L5810498-1 HAA5ND
2015-09-09L5810498-3 HAA5ND
2015-09-09L5810498-4 HAA5ND
2015-12-07L5953521-4 HAA5ND
2015-12-07L5953521-3 HAA5ND
2015-12-07L5953521-2 HAA5ND
2015-12-07L5953521-1 HAA5ND
2016-03-07L6114811-1ND
2016-03-07L6114811-2ND
2016-03-07L6114811-3ND
2016-03-07L6114811-4ND
2016-09-07L6460451-4 HAA5ND
2016-09-07L6460451-3 HAA5ND
2016-09-07L6460451-2 HAA5ND
2016-09-07L6460451-1 HAA5ND
2016-12-052194825004ND
2016-12-052194825003ND
2016-12-052194825002ND
2016-12-052194825001ND
2017-03-062214430002ND
2017-03-062214430003ND
2017-03-062214430004ND
2017-03-062214430001ND
2017-09-05S737151ND
2017-09-05S737147ND
2017-09-05S737143ND
2017-09-05S737139ND
2017-12-26L6986762-4 HAA5ND
2017-12-26L6986762-3 HAA5ND
2017-12-26L6986762-2 HAA5ND
2017-12-26L6986762-1 HAA5ND
2018-03-06S770626ND
2018-03-06S770614ND
2018-03-06S770618ND
2018-03-06S770622ND
2018-06-04S770835ND
2018-06-04S770808ND
2018-06-04S770804ND
2018-06-04S770752ND
2018-09-05S812291ND
2018-09-05S812295ND
2018-09-05S812309ND
2018-09-05S812299ND
2018-12-05S817023ND
2018-12-05S817019ND
2018-12-05S817015ND
2018-12-05S816974ND
2019-03-04S847947ND
2019-03-04S847943ND
2019-03-04S847939ND
2019-03-04S847935ND
2019-06-03S848073ND
2019-06-03S848061ND
2019-06-03S848065ND
2019-06-03S848069ND
2019-09-03S864711ND
2019-09-03S864707ND
2019-09-03S864703ND
2019-09-03S864699ND
2019-12-03S919909ND
2019-12-03S919921ND
2019-12-03S919917ND
2019-12-03S919913ND