Bromodichloromethane

City of La Habra

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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

209

Samples

Samples exceeding legal limit (MCL)

118

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	2.51 ppb	34	16	ND - 54.0 ppb
2015	1.49 ppb	35	17	ND - 11.2 ppb
2016	1.63 ppb	35	22	ND - 5.40 ppb
2017	1.55 ppb	35	17	ND - 9.00 ppb
2018	1.63 ppb	35	20	ND - 5.70 ppb
2019	2.77 ppb	35	26	ND - 10.9 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-17	3761-028-1141	ND
2014-01-17	3761-031-1107	54.0 ppb
2014-02-13	3761-801-1414	2.50 ppb
2014-02-13	3761-802-1328	2.40 ppb
2014-02-13	3761-803-1341	3.10 ppb
2014-02-13	3761-804-1425	2.40 ppb
2014-02-13	3761-805-1403	4.10 ppb
2014-02-13	3761-806-1441	ND
2014-02-13	3761-807-1237	2.80 ppb
2014-02-13	3761-808-1520	3.50 ppb
2014-02-21	3761-031-1128	ND
2014-04-14	3761-028-1412	ND
2014-04-16	3761-031-1250	ND
2014-05-15	3761-801-1021	1.10 ppb
2014-05-15	3761-802-0954	ND
2014-05-15	3761-803-1000	ND
2014-05-15	3761-804-1029	ND
2014-05-15	3761-805-1008	ND
2014-05-15	3761-806-0945	ND
2014-05-15	3761-807-0936	ND
2014-05-15	3761-808-0926	ND
2014-07-21	3761-028-1429	ND
2014-07-21	3761-031-1508	ND
2014-08-14	3761-801-1025	1.50 ppb
2014-08-14	3761-802-1059	1.30 ppb
2014-08-14	3761-803-1045	1.30 ppb
2014-08-14	3761-804-1034	1.60 ppb
2014-08-14	3761-805-1052	1.50 ppb
2014-08-14	3761-806-1005	ND
2014-08-14	3761-807-1013	1.30 ppb
2014-08-14	3761-808-0955	1.10 ppb
2014-09-04	3761-004-1124	ND
2014-09-04	3761-028-1151	ND
2014-09-04	3761-031-1055	ND
2015-02-13	3761-801-1242	1.10 ppb
2015-02-13	3761-802-1220	ND
2015-02-13	3761-803-1227	1.10 ppb
2015-02-13	3761-804-1250	ND
2015-02-13	3761-805-1233	ND
2015-02-13	3761-806-1303	ND
2015-02-13	3761-807-1315	ND
2015-02-13	3761-808-1330	ND
2015-05-14	3761-801-1230	1.30 ppb
2015-05-14	3761-802-1030	11.2 ppb
2015-05-14	3761-803-1115	1.10 ppb
2015-05-14	3761-804-1215	1.30 ppb
2015-05-14	3761-805-1130	7.70 ppb
2015-05-14	3761-806-1145	1.10 ppb
2015-05-14	3761-807-1045	2.10 ppb
2015-05-14	3761-808-1030	8.30 ppb
2015-08-14	3761-801-1150	ND
2015-08-14	3761-802-1225	1.70 ppb
2015-08-14	3761-803-1240	ND
2015-08-14	3761-804-1205	ND
2015-08-14	3761-805-1305	1.60 ppb
2015-08-14	3761-806-1320	4.00 ppb
2015-08-14	3761-807-1135	ND
2015-08-14	3761-808-1120	ND
2015-09-21	3761-004-1400	ND
2015-09-21	3761-028-1515	ND
2015-09-21	3761-031-1450	ND
2015-11-09	3761-801-1354	ND
2015-11-09	3761-802-1318	1.10 ppb
2015-11-09	3761-803-1329	ND
2015-11-09	3761-804-1403	ND
2015-11-09	3761-805-1344	1.40 ppb
2015-11-09	3761-806-1418	ND
2015-11-09	3761-807-1250	2.30 ppb
2015-11-09	3761-808-1322	3.80 ppb
2016-02-08	3761-801-1236	1.70 ppb
2016-02-08	3761-802-1317	1.50 ppb
2016-02-08	3761-803-1312	1.60 ppb
2016-02-08	3761-804-1243	1.70 ppb
2016-02-08	3761-805-1256	1.90 ppb
2016-02-08	3761-806-1330	1.30 ppb
2016-02-08	3761-807-1339	1.60 ppb
2016-02-08	3761-808-1121	5.40 ppb
2016-05-09	3761-801-1425	3.60 ppb
2016-05-09	3761-802-1400	2.70 ppb
2016-05-09	3761-803-1415	3.10 ppb
2016-05-09	3761-804-1455	3.40 ppb
2016-05-09	3761-805-1430	4.20 ppb
2016-05-09	3761-806-1505	2.40 ppb
2016-05-09	3761-807-1300	4.40 ppb
2016-05-09	3761-808-1140	3.20 ppb
2016-08-08	3761-801-1353	2.30 ppb
2016-08-08	3761-802-1311	1.70 ppb
2016-08-08	3761-803-1320	2.20 ppb
2016-08-08	3761-804-1410	2.20 ppb
2016-08-08	3761-805-1329	ND
2016-08-08	3761-806-1419	2.80 ppb
2016-08-08	3761-807-1122	2.00 ppb
2016-08-08	3761-808-1220	ND
2016-09-16	3761-028-1125	ND
2016-09-16	3761-031-1100	ND
2016-10-04	3761-004-1530	ND
2016-11-09	3761-801-1030	ND
2016-11-09	3761-802-1102	ND
2016-11-09	3761-803-1054	ND
2016-11-09	3761-804-1035	ND
2016-11-09	3761-805-1042	ND
2016-11-09	3761-806-1115	ND
2016-11-09	3761-807-1020	ND
2016-11-09	3761-808-1134	ND
2017-02-13	3761-801-1326	ND
2017-02-13	3761-802-1148	ND
2017-02-13	3761-803-1302	ND
2017-02-13	3761-804-1336	ND
2017-02-13	3761-805-1315	ND
2017-02-13	3761-806-1357	ND
2017-02-13	3761-807-1213	ND
2017-02-13	3761-808-1105	9.00 ppb
2017-05-09	3761-801-1038	1.70 ppb
2017-05-09	3761-802-1112	1.60 ppb
2017-05-09	3761-803-1103	1.90 ppb
2017-05-09	3761-804-1047	1.80 ppb
2017-05-09	3761-805-1054	2.10 ppb
2017-05-09	3761-806-1022	1.80 ppb
2017-05-09	3761-807-1029	4.30 ppb
2017-05-09	3761-808-1010	5.30 ppb
2017-08-07	3761-801-1400	2.00 ppb
2017-08-07	3761-802-1310	3.10 ppb
2017-08-07	3761-803-1316	4.10 ppb
2017-08-07	3761-804-1413	3.10 ppb
2017-08-07	3761-805-1330	3.40 ppb
2017-08-07	3761-806-1428	2.70 ppb
2017-08-07	3761-807-1102	3.50 ppb
2017-08-07	3761-808-1151	3.00 ppb
2017-09-25	3761-028-1145	ND
2017-09-27	3761-031-1435	ND
2017-11-13	3761-801-1304	ND
2017-11-13	3761-802-1221	ND
2017-11-13	3761-803-1228	ND
2017-11-13	3761-804-1320	ND
2017-11-13	3761-805-1248	ND
2017-11-13	3761-806-1343	ND
2017-11-13	3761-807-1043	ND
2017-11-13	3761-808-1127	ND
2017-11-17	3761-004-1152	ND
2018-02-12	3761-801-1306	1.70 ppb
2018-02-12	3761-802-1222	ND
2018-02-12	3761-803-1234	ND
2018-02-12	3761-804-1315	1.80 ppb
2018-02-12	3761-805-1249	2.40 ppb
2018-02-12	3761-806-1336	1.70 ppb
2018-02-12	3761-807-1148	ND
2018-02-12	3761-808-1351	ND
2018-05-07	3761-801-1226	3.80 ppb
2018-05-07	3761-802-1242	4.10 ppb
2018-05-07	3761-803-1256	5.10 ppb
2018-05-07	3761-804-1337	3.60 ppb
2018-05-07	3761-805-1311	5.70 ppb
2018-05-07	3761-806-1406	1.90 ppb
2018-05-07	3761-807-1212	2.40 ppb
2018-05-07	3761-808-1101	2.60 ppb
2018-08-16	3761-801-0944	2.40 ppb
2018-08-16	3761-802-1018	2.50 ppb
2018-08-16	3761-803-1010	2.50 ppb
2018-08-16	3761-804-0955	2.30 ppb
2018-08-16	3761-805-1003	1.80 ppb
2018-08-16	3761-806-0934	1.70 ppb
2018-08-16	3761-807-0926	2.10 ppb
2018-08-16	3761-808-0913	5.00 ppb
2018-09-14	3761-004-1140	ND
2018-09-14	3761-028-1111	ND
2018-09-14	3761-031-1042	ND
2018-11-05	3761-801-1305	ND
2018-11-05	3761-802-1409	ND
2018-11-05	3761-803-1353	ND
2018-11-05	3761-804-1320	ND
2018-11-05	3761-805-1329	ND
2018-11-05	3761-806-1216	ND
2018-11-05	3761-807-1229	ND
2018-11-05	3761-808-1050	ND
2019-02-04	3761-801-1403	ND
2019-02-04	3761-802-1252	ND
2019-02-04	3761-803-1308	ND
2019-02-04	3761-804-1151	ND
2019-02-04	3761-805-1336	1.40 ppb
2019-02-04	3761-806-1152	1.30 ppb
2019-02-04	3761-807-1430	ND
2019-02-04	3761-808-1033	ND
2019-05-08	3761-801-1100	3.00 ppb
2019-05-08	3761-802-1022	2.10 ppb
2019-05-08	3761-803-1031	2.50 ppb
2019-05-08	3761-804-1048	2.80 ppb
2019-05-08	3761-805-1040	2.40 ppb
2019-05-08	3761-806-1003	1.80 ppb
2019-05-08	3761-807-1012	2.10 ppb
2019-05-08	3761-808-0951	2.30 ppb
2019-08-05	3761-801-1354	3.70 ppb
2019-08-05	3761-802-1240	2.00 ppb
2019-08-05	3761-803-1256	2.90 ppb
2019-08-05	3761-804-1343	3.50 ppb
2019-08-05	3761-805-1304	3.50 ppb
2019-08-05	3761-806-1133	1.70 ppb
2019-08-05	3761-807-1421	2.60 ppb
2019-08-05	3761-808-1433	1.40 ppb
2019-09-11	3761-004-1140	ND
2019-09-11	3761-028-1025	ND
2019-09-11	3761-031-1100	ND
2019-11-04	3761-801-1307	9.90 ppb
2019-11-04	3761-802-1412	4.80 ppb
2019-11-04	3761-803-1400	8.90 ppb
2019-11-04	3761-804-1322	10.9 ppb
2019-11-04	3761-805-1340	10.9 ppb
2019-11-04	3761-806-1213	3.80 ppb
2019-11-04	3761-807-1227	3.00 ppb
2019-11-04	3761-808-1040	1.70 ppb