Dibromoacetic acid

Randall-bold Water Treatment Plant

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	2.03 ppb	4	4	1.20 ppb - 2.40 ppb
2015	2.25 ppb	4	3	ND - 4.00 ppb
2016	0.725 ppb	4	2	ND - 1.60 ppb
2017	0.360 ppb	5	1	ND - 1.80 ppb
2018	1.78 ppb	4	2	ND - 4.30 ppb
2019	0.560 ppb	5	2	ND - 1.50 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
2014-03-04	9590-002-1225	2.40 ppb
2014-06-03	9590-002-1235	1.20 ppb
2014-09-02	9590-002-1435	2.10 ppb
2014-12-09	9590-002-0925	2.40 ppb
2015-03-12	9590-002-0918	ND
2015-06-02	9590-002-1414	2.60 ppb
2015-09-08	9590-002-1420	2.40 ppb
2015-12-22	9590-002-1310	4.00 ppb
2016-03-08	9590-002-1330	ND
2016-06-07	9590-002-1037	ND
2016-09-13	9590-002-0945	1.30 ppb
2016-12-13	9590-002-1148	1.60 ppb
2017-03-07	9590-002-1430	ND
2017-03-09	9590-002-1005	ND
2017-06-06	9590-002-0830	ND
2017-09-12	9590-002-0950	ND
2017-12-12	9590-002-1130	1.80 ppb
2018-03-21		2.80 ppb
2018-06-05		ND
2018-09-11	1644-002-1235	ND
2018-12-06	1644-002-1005	4.30 ppb
2019-03-05	1644-002-0930	1.50 ppb
2019-06-04	1644-002-0915	ND
2019-09-10	1644-002-0854	ND
2019-10-01	1644-002-0956	ND
2019-12-19	1644-002-0825	1.30 ppb