Dibromoacetic acid

Rancho California 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

120

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	1.23 ppb	16	8	ND - 5.00 ppb
2015	0.971 ppb	24	13	ND - 4.10 ppb
2016	N/A	0	0	N/A
2017	2.92 ppb	32	30	ND - 9.00 ppb
2018	1.72 ppb	32	25	ND - 5.10 ppb
2019	3.05 ppb	16	15	ND - 4.90 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	4790-801-1023	ND
2014-02-11	4790-802-0841	1.30 ppb
2014-02-11	4790-803-0815	2.80 ppb
2014-02-11	4790-804-1056	ND
2014-02-11	4790-805-0922	5.00 ppb
2014-02-11	4790-806-1007	2.60 ppb
2014-02-11	4790-807-1039	1.60 ppb
2014-02-11	4790-808-0934	3.40 ppb
2014-05-05	4790-801-0927	ND
2014-05-05	4790-802-1115	ND
2014-05-05	4790-803-1047	ND
2014-05-05	4790-804-1006	ND
2014-05-05	4790-805-1205	1.70 ppb
2014-05-05	4790-806-0912	ND
2014-05-05	4790-807-0945	1.30 ppb
2014-05-05	4790-808-1150	ND
2015-02-11	4790-801-0915	ND
2015-02-11	4790-802-1043	ND
2015-02-11	4790-803-1028	1.40 ppb
2015-02-11	4790-804-0955	4.10 ppb
2015-02-11	4790-805-1105	2.60 ppb
2015-02-11	4790-806-0903	1.70 ppb
2015-02-11	4790-807-0935	1.90 ppb
2015-02-11	4790-808-1116	1.70 ppb
2015-05-12	4790-801-1006	2.30 ppb
2015-05-12	4790-802-1144	1.20 ppb
2015-05-12	4790-803-1122	ND
2015-05-12	4790-804-1047	ND
2015-05-12	4790-805-1213	ND
2015-05-12	4790-806-0954	ND
2015-05-12	4790-807-1022	ND
2015-05-12	4790-808-1243	ND
2015-08-04	4790-801-1424	1.10 ppb
2015-08-04	4790-802-0921	1.30 ppb
2015-08-04	4790-803-0848	1.30 ppb
2015-08-04	4790-804-1545	ND
2015-08-04	4790-805-1102	1.50 ppb
2015-08-04	4790-806-1405	ND
2015-08-04	4790-807-1444	1.20 ppb
2015-08-04	4790-808-1127	ND
2017-02-28	4790-801-1129	6.20 ppb
2017-02-28	4790-802-0946	2.30 ppb
2017-02-28	4790-803-1251	ND
2017-02-28	4790-804-1212	7.80 ppb
2017-02-28	4790-805-1017	9.00 ppb
2017-02-28	4790-806-1115	6.90 ppb
2017-02-28	4790-807-1146	6.90 ppb
2017-02-28	4790-808-1031	6.20 ppb
2017-06-09	4790-801-0820	2.10 ppb
2017-06-09	4790-802-0958	2.00 ppb
2017-06-09	4790-803-0943	1.70 ppb
2017-06-09	4790-804-0910	2.00 ppb
2017-06-09	4790-805-1020	1.40 ppb
2017-06-09	4790-806-0807	2.10 ppb
2017-06-09	4790-807-0835	1.80 ppb
2017-06-09	4790-808-1030	1.20 ppb
2017-08-10	4790-801-0853	1.90 ppb
2017-08-10	4790-802-1038	1.80 ppb
2017-08-10	4790-803-1021	1.90 ppb
2017-08-10	4790-804-0950	ND
2017-08-10	4790-805-1105	1.000 ppb
2017-08-10	4790-806-0840	1.90 ppb
2017-08-10	4790-807-0919	2.00 ppb
2017-08-10	4790-808-1118	1.60 ppb
2017-11-30	4790-801-1128	2.30 ppb
2017-11-30	4790-802-1033	1.10 ppb
2017-11-30	4790-803-1049	3.20 ppb
2017-11-30	4790-804-1209	1.000 ppb
2017-11-30	4790-805-0948	6.20 ppb
2017-11-30	4790-806-1114	2.70 ppb
2017-11-30	4790-807-1147	2.80 ppb
2017-11-30	4790-808-1004	2.30 ppb
2018-02-01	4790-801-0930	2.00 ppb
2018-02-01	4790-802-1152	1.60 ppb
2018-02-01	4790-803-1101	2.20 ppb
2018-02-01	4790-804-1009	3.60 ppb
2018-02-01	4790-805-1230	4.00 ppb
2018-02-01	4790-806-0916	2.10 ppb
2018-02-01	4790-807-0945	2.00 ppb
2018-02-01	4790-808-1304	5.00 ppb
2018-05-02	4790-801-0954	1.30 ppb
2018-05-02	4790-802-1215	1.000 ppb
2018-05-02	4790-803-1149	1.000 ppb
2018-05-02	4790-804-1105	2.10 ppb
2018-05-02	4790-805-1251	5.10 ppb
2018-05-02	4790-806-0925	1.60 ppb
2018-05-02	4790-807-1014	1.80 ppb
2018-05-02	4790-808-1307	2.50 ppb
2018-08-20	4790-801-0927	2.00 ppb
2018-08-20	4790-802-1143	1.50 ppb
2018-08-20	4790-803-1117	1.50 ppb
2018-08-20	4790-804-1010	1.80 ppb
2018-08-20	4790-805-1209	ND
2018-08-20	4790-806-0910	ND
2018-08-20	4790-807-0946	1.90 ppb
2018-08-20	4790-808-1236	ND
2018-11-20	4790-801-0900	1.10 ppb
2018-11-20	4790-802-0945	ND
2018-11-20	4790-803-0910	ND
2018-11-20	4790-804-1015	1.80 ppb
2018-11-20	4790-805-1100	3.40 ppb
2018-11-20	4790-806-0815	ND
2018-11-20	4790-807-0930	ND
2018-11-20	4790-808-1035	1.10 ppb
2019-02-07	4790-801-1055	4.00 ppb
2019-02-07	4790-802-0830	ND
2019-02-07	4790-803-1245	1.70 ppb
2019-02-07	4790-804-1200	2.80 ppb
2019-02-07	4790-805-0915	4.50 ppb
2019-02-07	4790-806-1030	3.10 ppb
2019-02-07	4790-807-1130	3.40 ppb
2019-02-07	4790-808-0945	2.70 ppb
2019-05-28	4790-801-0900	3.90 ppb
2019-05-28	4790-802-1305	2.00 ppb
2019-05-28	4790-803-1050	1.60 ppb
2019-05-28	4790-804-1000	4.30 ppb
2019-05-28	4790-805-1140	4.90 ppb
2019-05-28	4790-806-0830	3.20 ppb
2019-05-28	4790-807-0930	3.60 ppb
2019-05-28	4790-808-1210	3.10 ppb