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EWG's Tap Water Database — 2021 UPDATE

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Chlorodibromoacetic acid

Emma PWS

Chlorodibromoacetic 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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND40ND
2016ND40ND
20170.250 ppb41ND - 1.000 ppb
2018ND40ND
20190.135 ppb81ND - 1.08 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chlorodibromoacetic 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
2014-07-23AC30513ND
2014-10-21AC37585ND
2015-01-20AC40309ND
2015-05-07AC44993ND
2015-07-14AC54196ND
2015-10-13AC61152ND
2016-01-06AC64957ND
2016-04-12AC69316ND
2016-09-06AC83732ND
2016-10-17AC86226ND
2017-01-09AC89038ND
2017-04-05AC94405ND
2017-07-10AD01312ND
2017-10-09AD078411.000 ppb
2018-01-18AD11285ND
2018-04-24AD17956ND
2018-07-08AD29092ND
2018-10-16AD34364ND
2019-01-09AD37675ND
2019-04-04AD46012ND
2019-04-10AD46095ND
2019-06-05AD49753ND
2019-07-17AD517081.08 ppb
2019-07-17AD51709ND
2019-10-10AD56678ND
2019-10-10AD56679ND