Dibromoacetic acid

Attleboro Water Department

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	N/A	0	0	N/A
2015	1.21 ppb	16	11	ND - 2.50 ppb
2016	0.294 ppb	16	6	ND - 1.000 ppb
2017	0.231 ppb	16	4	ND - 1.20 ppb
2018	N/A	0	0	N/A
2019	N/A	0	0	N/A

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	Result
2015-02-05	2.40 ppb
2015-02-05	1.90 ppb
2015-02-05	2.20 ppb
2015-02-05	2.10 ppb
2015-05-07	2.50 ppb
2015-05-07	2.30 ppb
2015-05-07	2.30 ppb
2015-05-07	1.60 ppb
2015-08-06	ND
2015-08-06	ND
2015-08-06	0.800 ppb
2015-08-06	0.700 ppb
2015-11-05	ND
2015-11-05	ND
2015-11-05	ND
2015-11-05	0.600 ppb
2016-02-11	0.700 ppb
2016-02-11	1.000 ppb
2016-02-11	0.800 ppb
2016-02-11	ND
2016-05-05	ND
2016-05-05	0.800 ppb
2016-05-05	0.700 ppb
2016-05-05	0.700 ppb
2016-08-11	ND
2016-08-11	ND
2016-08-11	ND
2016-08-11	ND
2016-11-10	ND
2016-11-10	ND
2016-11-10	ND
2016-11-10	ND
2017-02-09	1.20 ppb
2017-02-09	0.900 ppb
2017-02-09	1.000 ppb
2017-02-09	ND
2017-05-11	ND
2017-05-11	ND
2017-05-11	ND
2017-05-11	ND
2017-08-10	ND
2017-08-10	ND
2017-08-10	ND
2017-08-10	ND
2017-11-09	ND
2017-11-09	ND
2017-11-09	0.600 ppb
2017-11-09	ND