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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Los Angeles, City Of - Power Plant #1

Dibromoacetic 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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20151.40 ppb76ND - 2.52 ppb
20161.39 ppb76ND - 2.76 ppb
20170.268 ppb41ND - 1.07 ppb
20180.278 ppb41ND - 1.11 ppb
20190.348 ppb41ND - 1.39 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 dibromoacetic 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
2015-02-051200-002-10051.16 ppb
2015-02-051200-800-10401.17 ppb
2015-05-121200-002-12302.20 ppb
2015-05-121200-800-11102.52 ppb
2015-09-021200-800-13001.18 ppb
2015-12-091200-002-09401.58 ppb
2015-12-091200-800-1010ND
2016-02-031200-002-09551.05 ppb
2016-02-031200-800-09001.19 ppb
2016-05-051200-002-08452.76 ppb
2016-05-051200-800-09201.76 ppb
2016-08-041200-800-10101.17 ppb
2016-10-061200-800-0830ND
2016-10-061200-002-10401.81 ppb
2017-02-271200-800-11001.07 ppb
2017-05-221200-800-1040ND
2017-08-151200-800-1330ND
2017-11-221200-800-0947ND
2018-02-201200-800-09011.11 ppb
2018-05-211200-800-1033ND
2018-08-211200-800-1205ND
2018-12-171200-800-1235ND
2019-02-061200-800-1039ND
2019-05-061200-800-09511.39 ppb
2019-08-051200-800-1047ND
2019-11-041200-800-1133ND