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EWG's Tap Water Database — 2021 UPDATE

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Tribromoacetic acid

Holt County Public Water Supply District 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

 

40

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND80ND
20160.251 ppb81ND - 2.01 ppb
20170.625 ppb82ND - 2.71 ppb
20180.725 ppb62ND - 2.31 ppb
20190.363 ppb61ND - 2.18 ppb

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
2014-06-26AC29165ND
2014-07-07AC30222ND
2014-12-15AC39471ND
2014-12-15AC39472ND
2015-03-30AC44859ND
2015-03-31AC44858ND
2015-06-17AC51190ND
2015-06-17AC51191ND
2015-09-10AC59486ND
2015-09-10AC59485ND
2015-12-29AC63921ND
2015-12-29AC63920ND
2016-03-15AC67619ND
2016-03-16AC67620ND
2016-07-05AC74841ND
2016-07-05AC748402.01 ppb
2016-09-19AC83791ND
2016-09-19AC83792ND
2016-12-21AC88426ND
2016-12-21AC88425ND
2017-03-15AC92117ND
2017-03-15AC921162.29 ppb
2017-06-26AC98434ND
2017-06-26AC984332.71 ppb
2017-09-13AD06421ND
2017-09-13AD06420ND
2017-12-19AD10585ND
2017-12-19AD10586ND
2018-03-26AD16463ND
2018-03-26AD16464ND
2018-06-19AD272562.31 ppb
2018-06-19AD27257ND
2018-09-18AD328942.04 ppb
2018-09-18AD32895ND
2019-03-27AD404952.18 ppb
2019-03-27AD40494ND
2019-06-24AD49065ND
2019-06-24AD49066ND
2019-09-17AD55163ND
2019-09-17AD55162ND