Dibromoacetic acid

Temescal Valley Water District

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
2013	N/A	0	0	N/A
2014	3.49 ppb	8	6	ND - 5.00 ppb
2015	1.79 ppb	33	19	ND - 4.90 ppb
2016	1.72 ppb	32	18	ND - 5.40 ppb
2017	1.06 ppb	24	16	ND - 2.20 ppb
2018	1.39 ppb	8	6	ND - 3.60 ppb
2019	0.625 ppb	16	5	ND - 3.00 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
2018-04-02	4790-801-0815	ND
2018-04-02	4790-804-0900	1.10 ppb
2018-04-02	4790-803-0825	1.10 ppb
2018-04-02	4790-802-0800	3.60 ppb
2018-10-01	4790-801-1000	ND
2018-10-01	4790-804-1010	1.000 ppb
2018-10-01	4790-803-1005	1.60 ppb
2018-10-01	4790-802-1003	2.70 ppb
2019-01-02	4790-802-0810	ND
2019-01-02	4790-804-0915	3.00 ppb
2019-01-02	4790-801-0825	ND
2019-01-02	4790-803-0900	ND
2019-04-01	4790-803-0945	ND
2019-04-01	4790-804-1000	ND
2019-04-01	4790-801-0925	1.70 ppb
2019-04-01	4790-802-0910	2.10 ppb
2019-07-01	4790-801-0938	ND
2019-07-01	4790-803-0955	ND
2019-07-01	4790-802-0915	ND
2019-07-01	4790-804-1010	1.70 ppb
2019-10-02	4790-803-0900	ND
2019-10-02	4790-801-0843	ND
2019-10-02	4790-802-0820	1.50 ppb
2019-10-02	4790-804-0915	ND