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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Los Angeles County WW District 40 Reg 38 Lake Los Angeles

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20143.28 ppb85ND - 12.2 ppb
20156.29 ppb168ND - 16.6 ppb
20164.74 ppb1614ND - 13.8 ppb
20172.19 ppb1210ND - 5.28 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
2014-07-095442-803-0930ND
2014-07-095442-802-10105.35 ppb
2014-07-095442-801-09151.51 ppb
2014-07-105442-800-11452.32 ppb
2014-10-085442-803-09424.89 ppb
2014-10-085442-802-100212.2 ppb
2014-10-085442-801-0934ND
2014-10-085442-800-1039ND
2015-01-145442-800-1035ND
2015-01-145442-801-1045ND
2015-01-145442-803-1100ND
2015-01-145442-802-1115ND
2015-04-085442-800-0955ND
2015-04-085442-803-0935ND
2015-04-085442-802-0945ND
2015-04-085442-801-0925ND
2015-07-085442-800-110612.3 ppb
2015-07-085442-803-10279.14 ppb
2015-07-085442-802-104215.6 ppb
2015-07-085442-801-10169.38 ppb
2015-10-075442-800-114516.6 ppb
2015-10-075442-801-113012.4 ppb
2015-10-075442-802-121516.4 ppb
2015-10-075442-803-12008.84 ppb
2016-01-115442-801-12151.32 ppb
2016-01-115442-800-12322.51 ppb
2016-01-115442-803-12251.65 ppb
2016-01-115442-802-1245ND
2016-04-145442-802-09147.71 ppb
2016-04-145442-800-083211.3 ppb
2016-04-145442-803-090613.8 ppb
2016-04-145442-801-085510.00 ppb
2016-07-145442-802-11308.22 ppb
2016-07-145442-800-12201.34 ppb
2016-07-145442-803-1155ND
2016-07-145442-801-12051.40 ppb
2016-10-135442-801-11594.17 ppb
2016-10-135442-802-12214.10 ppb
2016-10-135442-803-11334.35 ppb
2016-10-135442-800-11453.92 ppb
2017-01-095442-801-14575.28 ppb
2017-01-095442-803-14091.84 ppb
2017-01-095442-802-14501.75 ppb
2017-01-095442-800-14222.86 ppb
2017-04-209590-801-10552.40 ppb
2017-04-209590-800-10302.40 ppb
2017-04-209590-803-11121.70 ppb
2017-04-209590-802-11284.10 ppb
2017-07-179588-803-0953ND
2017-07-179588-802-1123ND
2017-07-179588-801-09431.10 ppb
2017-07-179588-800-10472.80 ppb