Dibromoacetic acid

Csa No. 31 Stonegate Ws

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	0.325 ppb	4	1	ND - 1.30 ppb
2015	0.550 ppb	4	1	ND - 2.20 ppb
2016	2.00 ppb	4	1	ND - 8.00 ppb
2017	ND	4	0	ND
2018	6.14 ppb	5	5	2.60 ppb - 11.5 ppb
2019	10.6 ppb	4	4	4.00 ppb - 21.1 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
2014-03-10	1610-801-1055	ND
2014-06-09	1610-801-1330	ND
2014-09-08	1610-801-1200	ND
2014-12-08	1610-801-1100	1.30 ppb
2015-03-09	1610-801-1405	ND
2015-06-08	1610-801-1200	2.20 ppb
2015-09-21	1610-801-0920	ND
2015-12-07	1610-801-1000	ND
2016-03-07	1610-801-1700	ND
2016-06-13	1610-801-1720	ND
2016-09-12	1610-801-0820	ND
2016-12-12	5867-801-1100	8.00 ppb
2017-03-08	1610-801-1000	ND
2017-06-12	1610-801-1200	ND
2017-09-11	1610-801-1100	ND
2017-12-12	5867-801-1400	ND
2018-03-16	1610-801-1200	2.60 ppb
2018-06-11	1610-801-1400	6.80 ppb
2018-09-10	1610-002-0940	4.90 ppb
2018-09-10	1610-801-0940	4.90 ppb
2018-12-11	1610-801-1325	11.5 ppb
2019-03-11	1610-801-1320	5.90 ppb
2019-06-10	1610-801-1120	21.1 ppb
2019-09-09	1610-801-1215	11.3 ppb
2019-12-09	1610-801-1305	4.00 ppb