Dibromoacetic acid

Smetana Forest

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	ND	4	0	ND
2015	10.1 ppb	4	3	ND - 20.9 ppb
2016	12.5 ppb	4	4	9.40 ppb - 15.3 ppb
2017	4.60 ppb	4	4	1.40 ppb - 12.1 ppb
2018	13.8 ppb	4	4	10.00 ppb - 19.3 ppb
2019	6.83 ppb	4	3	ND - 12.8 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
2014-02-13	AC42881	ND
2014-04-09	AC50033	ND
2014-08-05	AC62202	ND
2014-12-16	AC75094	ND
2015-03-03	AC82513	20.9 ppb
2015-06-30	AC97967	8.60 ppb
2015-09-28	AD08717	10.7 ppb
2015-11-09	AD12931	ND
2016-02-29	AD26035	9.90 ppb
2016-05-23	AD37675	15.3 ppb
2016-09-19	AD50099	9.40 ppb
2016-11-30	AD59559	15.3 ppb
2017-01-31	AD67803	1.40 ppb
2017-04-19	AD80114	12.1 ppb
2017-08-14	AD93036	2.70 ppb
2017-10-16	AE01046	2.20 ppb
2018-03-13	AE18126	12.0 ppb
2018-05-10	AE25878	19.3 ppb
2018-09-13	AE39974	13.7 ppb
2018-11-19	AE46396	10.00 ppb
2019-02-11	AE53745	5.90 ppb
2019-04-11	AE62018	12.8 ppb
2019-08-22	AE80207	ND
2019-10-08	AE85947	8.60 ppb