Dibromoacetic acid

Santa Margarita 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

192

Samples

Samples exceeding legal limit (MCL)

123

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	2.66 ppb	32	26	ND - 5.75 ppb
2015	1.04 ppb	32	21	ND - 2.76 ppb
2016	0.843 ppb	32	20	ND - 2.26 ppb
2017	0.603 ppb	32	15	ND - 1.70 ppb
2018	1.21 ppb	32	22	ND - 3.20 ppb
2019	0.909 ppb	32	19	ND - 2.40 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
2014-01-07	1805-801-0700	3.02 ppb
2014-01-07	1805-802-0700	2.87 ppb
2014-01-07	1805-803-0700	2.57 ppb
2014-01-07	1805-804-0700	1.74 ppb
2014-01-07	1805-805-0700	ND
2014-01-07	1805-806-0700	2.01 ppb
2014-01-07	1805-807-0700	1.87 ppb
2014-01-07	1805-808-0700	1.21 ppb
2014-04-03	1805-801-0730	4.58 ppb
2014-04-03	1805-802-0730	5.46 ppb
2014-04-03	1805-803-0730	3.45 ppb
2014-04-03	1805-804-0730	3.10 ppb
2014-04-03	1805-805-0730	2.78 ppb
2014-04-03	1805-806-0730	3.06 ppb
2014-04-03	1805-807-0730	3.18 ppb
2014-04-03	1805-808-0730	2.94 ppb
2014-07-01	1805-801-0000	5.69 ppb
2014-07-01	1805-802-0000	4.81 ppb
2014-07-01	1805-803-0000	4.86 ppb
2014-07-01	1805-804-0000	3.21 ppb
2014-07-01	1805-805-0000	4.32 ppb
2014-07-01	1805-806-0000	5.75 ppb
2014-07-01	1805-807-0000	2.33 ppb
2014-07-01	1805-808-0000	5.12 ppb
2014-10-07	1805-801-0000	2.06 ppb
2014-10-07	1805-802-0000	ND
2014-10-07	1805-803-0000	1.93 ppb
2014-10-07	1805-804-0000	ND
2014-10-07	1805-805-0000	ND
2014-10-07	1805-806-0000	ND
2014-10-07	1805-807-0000	ND
2014-10-07	1805-808-0000	1.23 ppb
2015-01-06	1805-801-0000	1.56 ppb
2015-01-06	1805-802-0000	ND
2015-01-06	1805-803-0000	1.74 ppb
2015-01-06	1805-804-0000	1.69 ppb
2015-01-06	1805-805-0000	1.05 ppb
2015-01-06	1805-806-0000	ND
2015-01-06	1805-807-0000	2.25 ppb
2015-01-06	1805-808-0000	1.45 ppb
2015-04-06	1805-801-0949	ND
2015-04-06	1805-802-0958	1.09 ppb
2015-04-06	1805-803-1014	2.76 ppb
2015-04-06	1805-804-1051	1.08 ppb
2015-04-06	1805-805-1333	ND
2015-04-06	1805-806-1507	ND
2015-04-06	1805-807-1422	ND
2015-04-06	1805-808-0849	ND
2015-07-07	1805-801-0000	1.98 ppb
2015-07-07	1805-802-0000	1.25 ppb
2015-07-07	1805-803-0000	2.27 ppb
2015-07-07	1805-804-0000	1.17 ppb
2015-07-08	1805-805-0000	ND
2015-07-08	1805-806-0000	ND
2015-07-08	1805-807-0000	ND
2015-07-09	1805-808-0000	1.33 ppb
2015-10-05	1805-801-0842	ND
2015-10-05	1805-802-0858	1.14 ppb
2015-10-05	1805-803-0915	1.58 ppb
2015-10-05	1805-804-0957	1.06 ppb
2015-10-05	1805-805-1331	1.30 ppb
2015-10-05	1805-806-1545	1.98 ppb
2015-10-05	1805-807-1529	1.40 ppb
2015-10-07	1805-808-1103	2.24 ppb
2016-01-05	1805-801-0850	1.03 ppb
2016-01-05	1805-802-0904	1.32 ppb
2016-01-05	1805-803-0918	1.36 ppb
2016-01-05	1805-804-0953	1.19 ppb
2016-01-05	1805-805-1239	1.21 ppb
2016-01-05	1805-806-1551	2.26 ppb
2016-01-05	1805-807-1449	1.16 ppb
2016-01-06	1805-808-1204	1.53 ppb
2016-04-13	9590-801-0938	ND
2016-04-13	9590-802-0955	ND
2016-04-13	9590-803-1014	ND
2016-04-13	9590-804-1520	1.30 ppb
2016-04-13	9590-805-1430	ND
2016-04-13	9590-806-1622	ND
2016-04-13	9590-807-1528	1.10 ppb
2016-04-14	9590-808-1054	1.50 ppb
2016-07-07	9590-801-1330	1.50 ppb
2016-07-07	9590-802-1350	1.20 ppb
2016-07-07	9590-803-1410	ND
2016-07-07	9590-804-1425	1.50 ppb
2016-07-07	9590-805-1500	1.40 ppb
2016-07-07	9590-806-1530	ND
2016-07-07	9590-807-1515	1.50 ppb
2016-07-07	9590-808-1255	1.70 ppb
2016-10-06	9590-801-1203	1.10 ppb
2016-10-06	9590-802-1332	1.000 ppb
2016-10-06	9590-803-1352	ND
2016-10-06	9590-804-1048	1.10 ppb
2016-10-06	9590-805-1113	ND
2016-10-06	9590-806-1416	ND
2016-10-06	9590-807-1135	ND
2016-10-06	9590-808-1000	ND
2017-01-06	9590-801-1002	ND
2017-01-06	9590-802-1023	ND
2017-01-06	9590-803-1050	ND
2017-01-06	9590-804-1118	ND
2017-01-06	9590-805-1140	ND
2017-01-06	9590-806-1227	ND
2017-01-06	9590-807-1252	ND
2017-01-06	9590-808-1157	1.000 ppb
2017-04-06	9590-801-0850	ND
2017-04-06	9590-802-0915	1.50 ppb
2017-04-06	9590-803-0935	ND
2017-04-06	9590-804-0958	1.20 ppb
2017-04-06	9590-805-1030	ND
2017-04-06	9590-806-1109	ND
2017-04-06	9590-807-1050	1.50 ppb
2017-04-06	9590-808-0937	1.30 ppb
2017-07-06	9590-801-1032	1.10 ppb
2017-07-06	9590-802-1050	ND
2017-07-06	9590-803-1107	1.000 ppb
2017-07-06	9590-804-1208	1.10 ppb
2017-07-06	9590-805-1300	ND
2017-07-06	9590-806-1338	ND
2017-07-06	9590-807-1242	ND
2017-07-06	9590-808-0820	ND
2017-10-05	9590-801-1042	1.50 ppb
2017-10-05	9590-802-1055	1.50 ppb
2017-10-05	9590-803-1108	ND
2017-10-05	9590-804-1126	1.70 ppb
2017-10-05	9590-805-1225	1.000 ppb
2017-10-05	9590-806-1259	1.20 ppb
2017-10-05	9590-807-1245	1.20 ppb
2017-10-05	9590-808-0857	1.50 ppb
2018-01-04	9590-801-1330	1.90 ppb
2018-01-04	9590-802-1311	1.20 ppb
2018-01-04	9590-803-1251	1.50 ppb
2018-01-04	9590-804-1225	2.30 ppb
2018-01-04	9590-805-1157	1.70 ppb
2018-01-04	9590-806-1111	1.30 ppb
2018-01-04	9590-807-1128	1.40 ppb
2018-01-04	9590-808-0828	1.40 ppb
2018-04-05	9590-801-1009	3.00 ppb
2018-04-05	9590-802-1021	1.60 ppb
2018-04-05	9590-803-1039	3.20 ppb
2018-04-05	9590-804-1058	2.40 ppb
2018-04-05	9590-805-1329	ND
2018-04-05	9590-806-1253	ND
2018-04-05	9590-807-1310	ND
2018-04-05	9590-808-0828	2.10 ppb
2018-07-03	9590-801-1252	ND
2018-07-03	9590-802-1239	1.20 ppb
2018-07-03	9590-803-1225	ND
2018-07-03	9590-804-1156	1.40 ppb
2018-07-03	9590-805-1116	ND
2018-07-03	9590-806-1023	ND
2018-07-03	9590-807-1047	ND
2018-07-03	9590-808-0950	1.30 ppb
2018-10-04	9590-801-1004	2.00 ppb
2018-10-04	9590-802-1015	1.50 ppb
2018-10-04	9590-803-1028	1.70 ppb
2018-10-04	9590-804-1046	1.60 ppb
2018-10-04	9590-805-1106	1.20 ppb
2018-10-04	9590-806-1153	ND
2018-10-04	9590-807-1131	ND
2018-10-04	9590-808-0928	1.80 ppb
2019-01-10	9590-801-0956	1.60 ppb
2019-01-10	9590-802-1017	ND
2019-01-10	9590-803-1040	1.40 ppb
2019-01-10	9590-804-1101	1.000 ppb
2019-01-10	9590-805-1259	ND
2019-01-10	9590-806-1343	ND
2019-01-10	9590-808-0828	1.60 ppb
2019-01-15	9590-807-1350	ND
2019-04-04	9590-801-0823	1.40 ppb
2019-04-04	9590-802-0837	ND
2019-04-04	9590-803-0900	2.30 ppb
2019-04-04	9590-804-0930	2.40 ppb
2019-04-04	9590-805-0956	ND
2019-04-04	9590-806-1110	ND
2019-04-04	9590-807-1041	ND
2019-04-04	9590-808-1241	1.60 ppb
2019-07-25	9590-801-1043	1.60 ppb
2019-07-25	9590-802-1059	1.60 ppb
2019-07-25	9590-803-1125	ND
2019-07-25	9590-804-1147	1.40 ppb
2019-07-25	9590-805-1300	1.50 ppb
2019-07-25	9590-806-1357	1.40 ppb
2019-07-25	9590-807-1326	1.30 ppb
2019-07-25	9590-808-0932	1.30 ppb
2019-10-08	9590-801-1103	1.10 ppb
2019-10-08	9590-802-1120	ND
2019-10-08	9590-803-1159	1.30 ppb
2019-10-08	9590-804-1220	1.40 ppb
2019-10-08	9590-805-1314	ND
2019-10-08	9590-806-1441	ND
2019-10-08	9590-807-1403	ND
2019-10-08	9590-808-0851	1.90 ppb