Bromodichloromethane

Elsinore Valley Municipal Water District

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

229

Samples

Samples exceeding legal limit (MCL)

164

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	3.20 ppb	17	15	ND - 6.90 ppb
2015	4.69 ppb	41	36	ND - 39.0 ppb
2016	3.18 ppb	47	27	ND - 15.0 ppb
2017	8.16 ppb	37	33	ND - 29.0 ppb
2018	4.10 ppb	33	24	ND - 19.0 ppb
2019	4.20 ppb	54	29	ND - 18.0 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
2014-08-28	4790-801-1330	4.80 ppb
2014-08-28	4790-802-1042	6.90 ppb
2014-08-28	4790-803-1019	2.70 ppb
2014-08-28	4790-804-1211	2.40 ppb
2014-08-28	4790-805-1230	4.40 ppb
2014-08-28	4790-806-1315	5.50 ppb
2014-08-28	4790-807-1148	0.970 ppb
2014-08-28	4790-808-1102	3.90 ppb
2014-08-28	4790-809-0904	ND
2014-11-21	4790-801-0810	4.40 ppb
2014-11-21	4790-802-1004	2.20 ppb
2014-11-21	4790-803-0940	2.40 ppb
2014-11-21	4790-804-1048	ND
2014-11-21	4790-805-1105	4.40 ppb
2014-11-21	4790-806-0820	4.40 ppb
2014-11-21	4790-807-0835	3.10 ppb
2014-11-21	4790-808-1030	2.00 ppb
2015-02-25	4790-801-1415	4.30 ppb
2015-02-25	4790-802-1105	0.990 ppb
2015-02-25	4790-803-1040	2.40 ppb
2015-02-25	4790-804-1305	2.70 ppb
2015-02-25	4790-805-1337	17.0 ppb
2015-02-25	4790-806-1400	5.40 ppb
2015-02-25	4790-807-1245	1.90 ppb
2015-02-25	4790-808-1220	2.20 ppb
2015-04-06	4790-007-1505	ND
2015-04-22	4790-007-1305	ND
2015-04-22	4790-042-1310	ND
2015-04-23	4790-007-1105	ND
2015-04-23	4790-042-1110	0.500 ppb
2015-05-07	4790-038-1350	1.50 ppb
2015-05-27	4790-801-1355	3.90 ppb
2015-05-27	4790-802-1050	0.780 ppb
2015-05-27	4790-803-1020	1.70 ppb
2015-05-27	4790-804-1212	2.40 ppb
2015-05-27	4790-805-1317	39.0 ppb
2015-05-27	4790-806-1340	4.90 ppb
2015-05-27	4790-807-1152	1.80 ppb
2015-05-27	4790-808-1125	1.70 ppb
2015-08-26	4790-801-1335	14.0 ppb
2015-08-26	4790-802-1118	2.30 ppb
2015-08-26	4790-803-1058	3.40 ppb
2015-08-26	4790-804-1226	1.10 ppb
2015-08-26	4790-805-1248	7.00 ppb
2015-08-26	4790-806-1326	9.40 ppb
2015-08-26	4790-807-1143	1.90 ppb
2015-08-26	4790-808-1210	2.70 ppb
2015-10-01	4790-007-1000	ND
2015-11-25	4790-801-1346	3.40 ppb
2015-11-25	4790-802-1102	3.80 ppb
2015-11-25	4790-803-1040	15.0 ppb
2015-11-25	4790-804-1202	4.70 ppb
2015-11-25	4790-805-1228	1.80 ppb
2015-11-25	4790-806-1336	4.00 ppb
2015-11-25	4790-807-1145	2.60 ppb
2015-11-25	4790-808-1126	2.40 ppb
2015-11-25	4790-809-0953	0.710 ppb
2015-12-30	4790-803-0755	17.0 ppb
2016-01-06	4790-007-0950	ND
2016-02-03	4790-049-1315	ND
2016-02-03	4790-050-1130	ND
2016-02-25	4790-801-0922	2.30 ppb
2016-02-25	4790-802-1140	ND
2016-02-25	4790-803-1202	ND
2016-02-25	4790-804-1005	0.690 ppb
2016-02-25	4790-807-1020	4.80 ppb
2016-02-25	4790-808-1034	4.60 ppb
2016-04-06	4790-007-1044	ND
2016-05-26	4790-052-1030	ND
2016-05-26	4790-801-1200	8.80 ppb
2016-05-26	4790-802-1010	8.80 ppb
2016-05-26	4790-803-0945	6.80 ppb
2016-05-26	4790-804-1111	5.70 ppb
2016-05-26	4790-805-1130	6.00 ppb
2016-05-26	4790-806-1150	8.50 ppb
2016-05-26	4790-807-1030	7.80 ppb
2016-05-26	4790-808-1050	5.80 ppb
2016-05-26	4790-809-0900	ND
2016-08-11	4790-010-1110	ND
2016-08-11	4790-037-1220	ND
2016-08-17	4790-012-1240	ND
2016-08-17	4790-022-1320	ND
2016-08-17	4790-031-1150	ND
2016-08-25	4790-004-1505	1.000 ppb
2016-08-25	4790-007-1040	ND
2016-08-25	4790-053-0910	ND
2016-08-31	4790-801-1358	5.00 ppb
2016-08-31	4790-802-1135	ND
2016-08-31	4790-803-1120	3.80 ppb
2016-08-31	4790-804-1249	5.50 ppb
2016-08-31	4790-805-1313	2.10 ppb
2016-08-31	4790-806-1345	5.40 ppb
2016-08-31	4790-807-1230	15.0 ppb
2016-08-31	4790-808-1205	6.80 ppb
2016-08-31	4790-809-1030	ND
2016-11-17	4790-038-1500	ND
2016-11-30	4790-801-1034	4.20 ppb
2016-11-30	4790-802-1330	ND
2016-11-30	4790-803-1408	3.80 ppb
2016-11-30	4790-804-1226	5.40 ppb
2016-11-30	4790-805-1050	3.80 ppb
2016-11-30	4790-806-1440	3.90 ppb
2016-11-30	4790-807-1233	5.40 ppb
2016-11-30	4790-808-1305	7.70 ppb
2016-11-30	4790-809-0958	ND
2017-02-27	4790-801-1517	18.0 ppb
2017-02-27	4790-802-1232	12.0 ppb
2017-02-27	4790-803-1255	20.0 ppb
2017-02-27	4790-804-1427	11.0 ppb
2017-02-27	4790-805-1015	18.0 ppb
2017-02-27	4790-806-1455	16.0 ppb
2017-02-27	4790-807-1330	16.0 ppb
2017-02-27	4790-808-1400	15.0 ppb
2017-02-27	4790-809-1130	ND
2017-04-28	9590-002-1310	16.0 ppb
2017-05-31	9590-801-1450	4.80 ppb
2017-05-31	9590-802-1208	6.60 ppb
2017-05-31	9590-803-1140	15.0 ppb
2017-05-31	9590-804-1412	4.40 ppb
2017-05-31	9590-805-1433	14.0 ppb
2017-05-31	9590-806-1503	4.80 ppb
2017-05-31	9590-807-1234	4.70 ppb
2017-05-31	9590-808-1250	3.10 ppb
2017-05-31	9590-809-1050	ND
2017-08-31	9590-801-1400	2.80 ppb
2017-08-31	9590-802-1114	3.80 ppb
2017-08-31	9590-803-1042	1.20 ppb
2017-08-31	9590-804-1140	4.00 ppb
2017-08-31	9590-805-1210	3.50 ppb
2017-08-31	9590-806-1040	3.40 ppb
2017-08-31	9590-807-1118	3.60 ppb
2017-08-31	9590-808-1326	3.70 ppb
2017-08-31	9590-809-0952	ND
2017-11-29	9590-801-1553	5.80 ppb
2017-11-29	9590-802-1320	7.40 ppb
2017-11-29	9590-803-1253	29.0 ppb
2017-11-29	9590-804-1455	6.40 ppb
2017-11-29	9590-805-1535	7.00 ppb
2017-11-29	9590-806-1339	6.20 ppb
2017-11-29	9590-807-1510	7.70 ppb
2017-11-29	9590-808-1410	7.00 ppb
2017-11-29	9590-809-1150	ND
2018-01-10	9590-805-1550	7.60 ppb
2018-02-28	9590-801-1528	3.30 ppb
2018-02-28	9590-802-1248	1.10 ppb
2018-02-28	9590-803-1221	ND
2018-02-28	9590-804-1430	2.50 ppb
2018-02-28	9590-805-1450	13.0 ppb
2018-02-28	9590-806-1510	3.90 ppb
2018-02-28	9590-807-1315	4.70 ppb
2018-02-28	9590-808-1330	2.30 ppb
2018-02-28	9590-809-1100	ND
2018-03-14	9590-805-1330	9.80 ppb
2018-03-29	9590-805-1143	10.00 ppb
2018-05-23	4790-002-1352	17.0 ppb
2018-06-07	4790-002-1128	19.0 ppb
2018-07-18	4790-021-1055	ND
2018-07-26	4790-049-1328	ND
2018-07-26	4790-050-1348	ND
2018-10-10	4790-040-1310	0.910 ppb
2018-11-14	4790-040-1050	1.10 ppb
2018-11-28	4790-801-1540	4.40 ppb
2018-11-28	4790-802-1047	ND
2018-11-28	4790-803-1020	3.20 ppb
2018-11-28	4790-804-1344	4.60 ppb
2018-11-28	4790-805-1425	3.00 ppb
2018-11-28	4790-806-1248	3.00 ppb
2018-11-28	4790-807-1358	4.60 ppb
2018-11-28	4790-808-1323	4.70 ppb
2018-11-28	4790-809-1504	4.50 ppb
2018-12-03	4790-040-1410	1.000 ppb
2018-12-06	4790-049-1409	ND
2018-12-06	4790-050-1640	ND
2018-12-12	4790-004-1410	ND
2018-12-27	4790-802-1152	6.20 ppb
2019-01-07	4790-040-1245	ND
2019-01-09	4790-012-1350	ND
2019-01-11	4790-049-1042	ND
2019-01-11	4790-050-1030	ND
2019-01-24	4790-053-0900	ND
2019-02-28	4790-801-1215	4.30 ppb
2019-02-28	4790-802-1106	4.60 ppb
2019-02-28	4790-809-0955	2.00 ppb
2019-03-11	4790-040-1031	1.20 ppb
2019-03-27	4790-038-1008	ND
2019-04-03	4790-002-1047	9.10 ppb
2019-05-01	4790-002-1024	11.0 ppb
2019-05-15	4790-002-1109	12.0 ppb
2019-06-07	4790-052-1045	4.40 ppb
2019-06-11	4790-053-1110	ND
2019-06-13	4790-012-0938	ND
2019-06-18	4790-037-1128	ND
2019-06-20	4790-031-1112	ND
2019-06-25	4790-021-1245	ND
2019-06-25	4790-022-1148	ND
2019-06-25	4790-049-1200	ND
2019-06-25	4790-050-1230	ND
2019-08-19	4790-002-1345	16.0 ppb
2019-08-20	4790-049-1055	ND
2019-08-29	4790-801-0818	7.80 ppb
2019-08-29	4790-802-1058	5.70 ppb
2019-08-29	4790-803-1010	ND
2019-08-29	4790-804-1140	5.50 ppb
2019-08-29	4790-805-0802	18.0 ppb
2019-08-29	4790-806-0838	5.60 ppb
2019-08-29	4790-807-1120	9.00 ppb
2019-08-29	4790-808-1256	6.10 ppb
2019-08-29	4790-809-0910	2.00 ppb
2019-09-05	4790-007-1110	ND
2019-09-11	4790-002-1005	15.0 ppb
2019-09-12	4790-038-1250	ND
2019-10-17	4790-002-1024	12.0 ppb
2019-10-23	4790-002-1044	9.90 ppb
2019-11-06	4790-002-1002	12.0 ppb
2019-11-12	4790-004-1255	ND
2019-11-13	4790-002-1135	11.0 ppb
2019-11-26	4790-801-1439	3.20 ppb
2019-11-26	4790-802-1047	1.30 ppb
2019-11-26	4790-803-1019	ND
2019-11-26	4790-804-1300	8.70 ppb
2019-11-26	4790-805-1349	7.90 ppb
2019-11-26	4790-806-1420	4.30 ppb
2019-11-26	4790-807-1325	9.20 ppb
2019-11-26	4790-808-1150	7.90 ppb
2019-11-26	4790-809-0915	ND
2019-12-17	4790-010-1306	ND
2019-12-18	4790-010-1306	ND
2019-12-18	4790-049-1120	ND
2019-12-18	4790-050-1145	ND