Dibromoacetic acid

Osage County Rural Water District 7

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	1.43 ppb	3	3	1.40 ppb - 1.50 ppb
2015	0.738 ppb	4	4	0.560 ppb - 0.860 ppb
2016	ND	4	0	ND
2017	0.603 ppb	4	4	0.520 ppb - 0.830 ppb
2018	0.615 ppb	4	3	ND - 1.30 ppb
2019	0.743 ppb	4	2	ND - 2.30 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
2014-02-17	62648	1.40 ppb
2014-08-24	178961	1.50 ppb
2014-11-17	232336	1.40 ppb
2015-03-02	290042	0.860 ppb
2015-05-25	336753	0.770 ppb
2015-08-16	387514	0.560 ppb
2015-11-16	427817	0.760 ppb
2016-02-14	492833	ND
2016-05-17	547523	ND
2016-08-28	610761	ND
2016-11-13	658539	ND
2017-02-19	710060	0.530 ppb
2017-05-07	752194	0.530 ppb
2017-08-20	822310	0.520 ppb
2017-11-19	879752	0.830 ppb
2018-02-18	906796	0.500 ppb
2018-05-20	972777	0.660 ppb
2018-08-19	1027282	1.30 ppb
2018-11-18	1078269	ND
2019-02-17	1121776	ND
2019-05-20	1157262	ND
2019-08-18	1224774	2.30 ppb
2019-11-17	1275827	0.670 ppb