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EWG's Tap Water Database — 2021 UPDATE

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Tribromoacetic acid

Thomas Hill PWSD 1

Tribromoacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.

MORE ABOUT THIS CONTAMINANT

 

48

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.805 ppb82ND - 3.24 ppb
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for tribromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-13AC18156ND
2014-02-13AC18155ND
2014-05-21AC23163ND
2014-05-21AC23164ND
2014-08-21AC332303.20 ppb
2014-08-21AC332313.24 ppb
2014-11-19AC38209ND
2014-11-19AC38210ND
2015-02-19AC41935ND
2015-02-19AC41936ND
2015-05-26AC46511ND
2015-05-26AC46512ND
2015-08-20AC57359ND
2015-08-20AC57360ND
2015-11-23AC62778ND
2015-11-23AC62777ND
2016-02-24AC66321ND
2016-02-24AC66322ND
2016-05-24AC72014ND
2016-05-24AC72015ND
2016-08-17AC81614ND
2016-08-17AC81615ND
2016-11-17AC86913ND
2016-11-17AC86914ND
2017-03-06AC92784ND
2017-03-06AC92785ND
2017-05-17AC95748ND
2017-05-17AC95749ND
2017-08-14AD03336ND
2017-08-14AD03337ND
2017-11-28AD09463ND
2017-11-28AD09462ND
2018-02-26AD14249ND
2018-02-26AD14248ND
2018-05-16AD20482ND
2018-05-16AD20481ND
2018-08-13AD31156ND
2018-08-13AD31157ND
2018-11-19AD35691ND
2018-11-19AD35692ND
2019-02-21AD39359ND
2019-02-21AD39360ND
2019-05-21AD47440ND
2019-05-21AD47441ND
2019-08-19AD53881ND
2019-08-19AD53882ND
2019-12-03AD58067ND
2019-12-03AD58066ND