Dibromoacetic acid

United Water System

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	0.930 ppb	4	4	0.760 ppb - 1.10 ppb
2015	0.625 ppb	4	4	0.390 ppb - 0.860 ppb
2016	0.195 ppb	4	2	ND - 0.390 ppb
2017	ND	4	0	ND
2018	0.720 ppb	4	4	0.680 ppb - 0.760 ppb
2019	ND	4	0	ND

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
2014-07-14	680-103344-4	1.10 ppb
2014-07-14	680-103344-3	0.760 ppb
2014-07-14	680-103344-4	1.10 ppb
2014-07-14	680-103344-3	0.760 ppb
2015-07-07	680-114310-1	0.390 ppb
2015-07-07	680-114310-1	0.390 ppb
2015-07-07	680-114310-2	0.860 ppb
2015-07-07	680-114310-2	0.860 ppb
2016-07-07	680-127342-1	0.390 ppb
2016-07-07	680-127342-2	ND
2016-07-07	680-127342-2	ND
2016-07-07	680-127342-1	0.390 ppb
2017-07-06	35322714006	ND
2017-07-06	35322714006	ND
2017-07-06	35322714005	ND
2017-07-06	35322714005	ND
2018-07-20	35405782002	0.680 ppb
2018-07-20	35405782001	0.760 ppb
2018-07-20	35405782001	0.760 ppb
2018-07-20	35405782002	0.680 ppb
2019-07-11	35481663001	ND
2019-07-11	35481663002	ND
2019-07-11	35481663001	ND
2019-07-11	35481663002	ND