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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Dublin San Ramon Services District

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
20190.925 ppb3213ND - 6.20 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
2019-01-309590-801-12016.20 ppb
2019-01-309590-808-11263.80 ppb
2019-01-309590-802-11061.20 ppb
2019-01-309590-807-1016ND
2019-01-309590-803-09412.00 ppb
2019-01-309590-806-11395.70 ppb
2019-01-309590-805-10482.20 ppb
2019-01-309590-804-09591.10 ppb
2019-04-179590-801-0841ND
2019-04-179590-808-0907ND
2019-04-179590-807-1044ND
2019-04-179590-806-0927ND
2019-04-179590-805-0948ND
2019-04-179590-804-1104ND
2019-04-179590-802-1019ND
2019-04-179590-803-1118ND
2019-08-079590-804-0944ND
2019-08-079590-808-11241.20 ppb
2019-08-079590-801-12051.20 ppb
2019-08-079590-807-10031.000 ppb
2019-08-079590-802-11041.40 ppb
2019-08-079590-806-11381.20 ppb
2019-08-079590-805-10441.40 ppb
2019-08-079590-803-0904ND
2019-10-079590-807-0948ND
2019-11-209590-802-1026ND
2019-11-209590-806-0959ND
2019-11-209590-805-1044ND
2019-11-209590-801-0907ND
2019-11-209590-803-1151ND
2019-11-209590-804-1135ND
2019-11-209590-808-0940ND