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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Scarsdale Water Department

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)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201424.8 ppb16168.70 ppb - 32.0 ppb
201520.9 ppb161615.0 ppb - 27.0 ppb
201624.1 ppb16166.60 ppb - 36.0 ppb
201726.8 ppb161620.0 ppb - 35.0 ppb
201827.4 ppb161622.0 ppb - 33.0 ppb
201926.0 ppb161616.0 ppb - 35.0 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
2014-01-17201401200021DBP24.0 ppb
2014-01-17201401200020DBP23.0 ppb
2014-01-17201401200019DBP25.0 ppb
2014-01-17201401200022DBP26.0 ppb
2014-04-17201404180351DBP32.0 ppb
2014-04-17201404180349DBP8.70 ppb
2014-04-17201404180348DBP26.0 ppb
2014-04-17201404180350DBP32.0 ppb
2014-07-17201407180424DBP27.0 ppb
2014-07-17201407180423DBP22.0 ppb
2014-07-17201407180425DBP20.0 ppb
2014-07-17201407180422DBP29.0 ppb
2014-10-17201410180109 DBP25.0 ppb
2014-10-17201410180106 DBP30.0 ppb
2014-10-17201410180108 DBP24.0 ppb
2014-10-17201410180107 DBP23.0 ppb
2015-01-16201501170042DBP16.0 ppb
2015-01-16201501170044DBP17.0 ppb
2015-01-16201501170043DBP21.0 ppb
2015-01-16201501170045DBP20.0 ppb
2015-04-17201504180152DBP24.0 ppb
2015-04-17201504180151DBP25.0 ppb
2015-04-17201504180150DBP22.0 ppb
2015-04-17201504180149DBP19.0 ppb
2015-07-28201507290517 DBP18.0 ppb
2015-07-28201507290516 DBP22.0 ppb
2015-07-28201507290514 DBP15.0 ppb
2015-07-28201507290515 DBP21.0 ppb
2015-10-15201510160387 DBP22.0 ppb
2015-10-15201510160385 DBP27.0 ppb
2015-10-15201510160386 DBP21.0 ppb
2015-10-15201510160388 DBP24.0 ppb
2016-01-20201601210649 Q127.0 ppb
2016-01-21201601210648 DBP24.0 ppb
2016-01-21201601210650 Q132.0 ppb
2016-01-21201601210651 DBP22.0 ppb
2016-04-18201604190509 DBP6.60 ppb
2016-04-18201604190508 DBP36.0 ppb
2016-04-18201604190506 DBP24.0 ppb
2016-04-18201604190507 DBP30.0 ppb
2016-07-18201607190663 DBP28.0 ppb
2016-07-18201607190662 DBP19.0 ppb
2016-07-18201607190664 DBP22.0 ppb
2016-07-18201607190661 DBP28.0 ppb
2016-10-17201610180616 DBP21.0 ppb
2016-10-17201610180613 DBP18.0 ppb
2016-10-17201610180614 DBP20.0 ppb
2016-10-17201610180615 DBP28.0 ppb
2017-01-17201701180838 DBP22.0 ppb
2017-01-17201701180837 DBP26.0 ppb
2017-01-17201701180835 DBP20.0 ppb
2017-01-17201701180836 DBP20.0 ppb
2017-04-17201704180815-DBP26.0 ppb
2017-04-17201704180814-DBP26.0 ppb
2017-04-17201704180816-DBP27.0 ppb
2017-04-17201704180813-DBP30.0 ppb
2017-07-17201707180302-DBP35.0 ppb
2017-07-17201707180304-DBP31.0 ppb
2017-07-17201707180303-DBP28.0 ppb
2017-07-17201707180301-DBP34.0 ppb
2017-10-17201710180635-DBP27.0 ppb
2017-10-17201710180632-DBP26.0 ppb
2017-10-17201710180633-DBP22.0 ppb
2017-10-17201710180634-DBP28.0 ppb
2018-01-17201801180352-DBP24.0 ppb
2018-01-17201801180349-DBP27.0 ppb
2018-01-17201801180350-DBP22.0 ppb
2018-01-17201801180351-DBP23.0 ppb
2018-04-17201804180719-DBP33.0 ppb
2018-04-17201804180720-DBP27.0 ppb
2018-04-17201804180722-DBP30.0 ppb
2018-04-17201804180721-DBP30.0 ppb
2018-07-17201807200435-DBP28.0 ppb
2018-07-17201807200437-DBP31.0 ppb
2018-07-17201807200439-DBP24.0 ppb
2018-07-17201807200433-DBP30.0 ppb
2018-10-17201810180781-DBP30.0 ppb
2018-10-17201810180784-DBP25.0 ppb
2018-10-17201810180782-DBP26.0 ppb
2018-10-17201810180783-DBP28.0 ppb
2019-01-17201901180376-DBP35.0 ppb
2019-01-17201901180373-DBP34.0 ppb
2019-01-17201901180374-DBP33.0 ppb
2019-01-17201901180375-DBP33.0 ppb
2019-04-17201904180642-DBP33.0 ppb
2019-04-17201904180643-DBP32.0 ppb
2019-04-17201904180644-DBP21.0 ppb
2019-04-17201904180641-DBP34.0 ppb
2019-07-17201907180457-DBP24.0 ppb
2019-07-17201907180459-DBP16.0 ppb
2019-07-17201907180458-DBP22.0 ppb
2019-07-17201907180460-DBP20.0 ppb
2019-10-17201910180233-DBP18.0 ppb
2019-10-17201910180231-DBP18.0 ppb
2019-10-17201910180230-DBP24.0 ppb
2019-10-17201910180232-DBP19.0 ppb