Dibromoacetic acid

Co Water District of Billings Heights

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	0.155 ppb	4	2	ND - 0.320 ppb
2015	0.0925 ppb	4	1	ND - 0.370 ppb
2016	ND	4	0	ND
2017	0.173 ppb	4	2	ND - 0.380 ppb
2018	0.358 ppb	4	3	ND - 0.620 ppb
2019	0.350 ppb	4	2	ND - 0.780 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
2014-02-11	B14020616-001B	0.320 ppb
2014-05-12	B14050982-001B	0.300 ppb
2014-08-11	B14080889-001B	ND
2014-11-10	B14110669-001B	ND
2015-02-09	B15020666-001B	ND
2015-05-11	B15050817-001B	ND
2015-08-11	B15080945-001B	0.370 ppb
2015-11-10	B15110820-001B	ND
2016-02-09	B16020734-001B	ND
2016-05-10	B16050791-001B	ND
2016-08-08	B16080722-001B	ND
2016-11-07	B16110542-001B	ND
2017-02-06	B17020273-001B	0.310 ppb
2017-05-08	B17050719-001B	ND
2017-08-07	B17080581-001B	ND
2017-11-06	B17110376-001A	0.380 ppb
2018-02-06	B18020368-001B	0.620 ppb
2018-05-09	B18050833-001B	ND
2018-08-07	B18080623-001B	0.480 ppb
2018-11-13	B18110967-001B	0.330 ppb
2019-02-12	B19020694-001B	0.780 ppb
2019-05-13	B19051032-001B	ND
2019-08-06	B19080453-001B	ND
2019-11-12	B19110902-001B	0.620 ppb