Dibromoacetic acid

Lomita Water Department

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

168

Samples

Samples exceeding legal limit (MCL)

154

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	4.30 ppb	12	12	1.46 ppb - 9.99 ppb
2015	4.37 ppb	16	16	1.20 ppb - 9.40 ppb
2016	2.74 ppb	32	21	ND - 8.20 ppb
2017	6.11 ppb	24	23	ND - 10.5 ppb
2018	4.14 ppb	36	36	1.30 ppb - 8.60 ppb
2019	3.22 ppb	48	46	ND - 7.80 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
2014-05-14	5442-800-0825	4.39 ppb
2014-05-14	5442-801-0810	2.58 ppb
2014-05-14	5442-802-0840	5.49 ppb
2014-05-14	5442-803-0855	6.13 ppb
2014-08-13	5442-800-0840	3.45 ppb
2014-08-13	5442-801-0825	4.09 ppb
2014-08-13	5442-802-0920	9.99 ppb
2014-08-13	5442-803-0940	3.30 ppb
2014-11-14	5442-800-1105	1.46 ppb
2014-11-14	5442-801-1050	2.74 ppb
2014-11-14	5442-802-1115	3.26 ppb
2014-11-14	5442-803-1130	4.71 ppb
2015-02-11	5442-800-1206	2.89 ppb
2015-02-11	5442-801-1146	2.73 ppb
2015-02-11	5442-802-1242	6.95 ppb
2015-02-11	5442-803-1222	6.51 ppb
2015-05-06	3761-800-1236	3.20 ppb
2015-05-06	3761-801-1235	3.50 ppb
2015-05-06	3761-802-1228	3.20 ppb
2015-05-06	3761-803-1214	2.10 ppb
2015-08-05	3761-800-0845	3.40 ppb
2015-08-05	3761-801-0837	3.20 ppb
2015-08-05	3761-802-0920	5.70 ppb
2015-08-05	3761-803-1033	5.40 ppb
2015-11-12	3761-800-0831	1.30 ppb
2015-11-12	3761-801-0816	1.20 ppb
2015-11-12	3761-802-0758	9.20 ppb
2015-11-12	3761-803-0910	9.40 ppb
2016-05-11	3761-800-1030	1.30 ppb
2016-05-11	3761-801-0955	1.50 ppb
2016-05-11	3761-802-0811	7.20 ppb
2016-05-11	3761-803-0900	5.90 ppb
2016-05-25	3761-801-0740	5.00 ppb
2016-05-25	3761-802-0700	5.30 ppb
2016-05-26	3761-801-0835	1.20 ppb
2016-05-26	3761-802-0710	4.90 ppb
2016-05-27	3761-801-0700	ND
2016-05-27	3761-802-0730	1.000 ppb
2016-05-30	3761-801-0820	ND
2016-05-30	3761-802-0720	ND
2016-05-31	3761-800-0720	ND
2016-05-31	3761-801-0705	ND
2016-05-31	3761-802-0645	ND
2016-05-31	3761-803-0745	ND
2016-06-29	3761-800-0730	1.50 ppb
2016-06-29	3761-801-0755	1.40 ppb
2016-06-29	3761-802-0650	7.80 ppb
2016-06-29	3761-803-0815	6.90 ppb
2016-10-12	3761-800-0955	ND
2016-10-12	3761-801-0920	ND
2016-10-12	3761-802-0725	ND
2016-10-12	3761-803-0810	ND
2016-11-09	3761-800-0925	2.40 ppb
2016-11-09	3761-801-0850	3.80 ppb
2016-11-09	3761-802-0710	8.20 ppb
2016-11-09	3761-803-0800	8.10 ppb
2016-12-14	3761-800-1000	1.10 ppb
2016-12-14	3761-801-0930	1.10 ppb
2016-12-14	3761-802-0715	6.40 ppb
2016-12-14	3761-803-0800	5.80 ppb
2017-01-11	3761-800-0930	1.10 ppb
2017-01-11	3761-801-0905	1.40 ppb
2017-01-11	3761-802-0720	1.50 ppb
2017-01-11	3761-803-0800	ND
2017-02-08	3761-800-0920	6.50 ppb
2017-02-08	3761-801-0850	6.50 ppb
2017-02-08	3761-802-0650	10.5 ppb
2017-02-08	3761-803-0730	9.90 ppb
2017-03-08	3761-800-0925	5.30 ppb
2017-03-08	3761-801-0840	5.30 ppb
2017-03-08	3761-802-0650	8.90 ppb
2017-03-08	3761-803-0750	7.50 ppb
2017-04-19	3761-800-0940	5.00 ppb
2017-04-19	3761-801-0855	5.20 ppb
2017-04-19	3761-802-0705	9.40 ppb
2017-04-19	3761-803-0745	9.10 ppb
2017-05-10	3761-800-0900	4.00 ppb
2017-05-10	3761-801-0935	3.80 ppb
2017-05-10	3761-802-0705	9.10 ppb
2017-05-10	3761-803-0750	9.20 ppb
2017-11-08	3761-800-0935	4.80 ppb
2017-11-08	3761-801-0900	4.70 ppb
2017-11-08	3761-802-0645	10.3 ppb
2017-11-08	3761-803-0800	7.60 ppb
2018-04-04	3761-800-1000	2.80 ppb
2018-04-04	3761-801-1035	2.80 ppb
2018-04-04	3761-802-0740	2.80 ppb
2018-04-04	3761-803-0840	1.40 ppb
2018-05-09	3761-800-0840	2.80 ppb
2018-05-09	3761-801-0920	3.00 ppb
2018-05-09	3761-802-0700	8.60 ppb
2018-05-09	3761-803-0745	8.30 ppb
2018-06-13	3761-800-0840	2.10 ppb
2018-06-13	3761-801-0910	2.20 ppb
2018-06-13	3761-802-0650	6.30 ppb
2018-06-13	3761-803-0740	6.20 ppb
2018-07-10	3761-800-0705	1.50 ppb
2018-07-10	3761-801-0730	1.60 ppb
2018-07-10	3761-802-0745	5.50 ppb
2018-07-10	3761-803-0850	5.50 ppb
2018-08-14	3761-800-0700	1.60 ppb
2018-08-14	3761-801-0720	1.60 ppb
2018-08-14	3761-802-0735	5.80 ppb
2018-08-14	3761-803-0845	5.70 ppb
2018-09-11	3761-800-0730	2.00 ppb
2018-09-11	3761-801-0750	2.30 ppb
2018-09-11	3761-802-0800	6.80 ppb
2018-09-11	3761-803-0850	6.10 ppb
2018-10-16	3761-800-0730	1.90 ppb
2018-10-16	3761-801-0750	2.00 ppb
2018-10-16	3761-802-0815	7.00 ppb
2018-10-16	3761-803-0900	7.30 ppb
2018-11-13	3761-800-0735	2.10 ppb
2018-11-13	3761-801-0800	2.20 ppb
2018-11-13	3761-802-0820	7.10 ppb
2018-11-13	3761-803-0915	7.00 ppb
2018-12-11	3761-800-1010	1.30 ppb
2018-12-11	3761-801-1025	1.30 ppb
2018-12-11	3761-802-1040	7.40 ppb
2018-12-11	3761-803-1115	7.00 ppb
2019-01-08	3761-800-0725	1.60 ppb
2019-01-08	3761-801-0745	1.50 ppb
2019-01-08	3761-802-0800	6.50 ppb
2019-01-08	3761-803-0955	4.90 ppb
2019-02-12	3761-800-0755	1.50 ppb
2019-02-12	3761-801-0815	1.40 ppb
2019-02-12	3761-802-0825	7.80 ppb
2019-02-12	3761-803-0915	5.10 ppb
2019-03-12	3761-800-0715	2.90 ppb
2019-03-12	3761-801-0730	2.70 ppb
2019-03-12	3761-802-0740	7.60 ppb
2019-03-12	3761-803-0815	7.00 ppb
2019-04-09	3761-800-0745	3.20 ppb
2019-04-09	3761-801-0800	2.90 ppb
2019-04-09	3761-802-0810	7.30 ppb
2019-04-09	3761-803-0845	6.70 ppb
2019-05-07	3761-800-0815	2.60 ppb
2019-05-07	3761-801-0835	2.40 ppb
2019-05-07	3761-802-0845	5.80 ppb
2019-05-07	3761-803-0935	5.90 ppb
2019-06-04	3761-800-0925	2.80 ppb
2019-06-04	3761-801-0945	3.00 ppb
2019-06-04	3761-802-0955	3.20 ppb
2019-06-04	3761-803-1030	2.50 ppb
2019-07-02	3761-800-0805	3.20 ppb
2019-07-02	3761-801-0850	2.90 ppb
2019-07-02	3761-802-0910	2.90 ppb
2019-07-02	3761-803-1055	3.10 ppb
2019-08-13	3761-800-1035	2.70 ppb
2019-08-13	3761-801-1050	2.70 ppb
2019-08-13	3761-802-1010	2.60 ppb
2019-08-13	3761-803-1215	2.10 ppb
2019-09-04	3761-800-0830	3.20 ppb
2019-09-04	3761-801-0905	3.30 ppb
2019-09-04	3761-802-0915	3.40 ppb
2019-09-04	3761-803-0950	3.20 ppb
2019-10-01	3761-800-0930	1.10 ppb
2019-10-01	3761-801-0945	ND
2019-10-01	3761-802-1000	ND
2019-10-01	3761-803-1040	1.20 ppb
2019-11-05	3761-800-0915	1.90 ppb
2019-11-05	3761-801-0930	1.80 ppb
2019-11-05	3761-802-0940	1.80 ppb
2019-11-05	3761-803-1030	1.60 ppb
2019-12-03	3761-800-1003	2.70 ppb
2019-12-03	3761-801-1040	2.70 ppb
2019-12-03	3761-802-1050	2.70 ppb
2019-12-03	3761-803-1120	2.80 ppb