Dibromochloromethane
City of Huntington Beach
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 5.87 ppb | 54 | 32 | ND - 18.9 ppb |
2015 | 7.33 ppb | 50 | 32 | ND - 18.5 ppb |
2016 | 6.23 ppb | 51 | 32 | ND - 20.1 ppb |
2017 | 6.27 ppb | 51 | 33 | ND - 17.8 ppb |
2018 | 6.62 ppb | 47 | 32 | ND - 21.9 ppb |
2019 | 5.19 ppb | 29 | 16 | ND - 22.3 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 |
---|---|---|
2014-01-15 | 4792-801-1135 | 8.00 ppb |
2014-01-15 | 4792-802-1200 | 8.70 ppb |
2014-01-15 | 4792-803-1230 | 8.40 ppb |
2014-01-15 | 4792-804-1240 | 5.20 ppb |
2014-01-15 | 4792-805-1210 | 8.60 ppb |
2014-01-15 | 4792-806-1125 | 8.60 ppb |
2014-01-15 | 4792-807-1220 | 9.20 ppb |
2014-01-15 | 4792-808-1150 | 8.30 ppb |
2014-02-12 | 4417-008-1010 | ND |
2014-02-12 | 4417-010-0925 | ND |
2014-02-12 | 4417-011-1020 | ND |
2014-02-12 | 4417-012-0750 | ND |
2014-02-12 | 4417-013-0850 | ND |
2014-02-12 | 4417-025-1000 | ND |
2014-03-10 | 4417-016-1000 | ND |
2014-04-15 | 4792-801-1235 | 11.0 ppb |
2014-04-15 | 4792-802-1250 | 10.6 ppb |
2014-04-15 | 4792-803-1200 | 9.80 ppb |
2014-04-15 | 4792-804-1220 | 8.90 ppb |
2014-04-15 | 4792-805-1145 | 10.2 ppb |
2014-04-15 | 4792-806-1055 | 11.8 ppb |
2014-04-15 | 4792-807-1130 | 18.9 ppb |
2014-04-15 | 4792-808-1115 | 7.60 ppb |
2014-05-06 | 4417-008-1105 | ND |
2014-05-06 | 4417-009-0850 | ND |
2014-05-06 | 4417-011-1115 | ND |
2014-05-06 | 4417-013-1000 | ND |
2014-05-06 | 4417-016-0920 | ND |
2014-05-06 | 4417-025-1050 | ND |
2014-06-24 | 4417-025-0855 | ND |
2014-06-24 | 4417-025-0910 | ND |
2014-07-16 | 4792-801-0845 | 11.4 ppb |
2014-07-16 | 4792-802-0920 | 11.4 ppb |
2014-07-16 | 4792-803-0935 | 11.9 ppb |
2014-07-16 | 4792-804-1025 | 8.70 ppb |
2014-07-16 | 4792-805-0945 | 12.3 ppb |
2014-07-16 | 4792-806-0820 | 11.1 ppb |
2014-07-16 | 4792-807-1000 | 7.90 ppb |
2014-07-16 | 4792-808-0905 | 12.4 ppb |
2014-08-06 | 4417-008-1010 | ND |
2014-08-06 | 4417-011-0950 | ND |
2014-08-06 | 4417-013-0910 | ND |
2014-08-06 | 4417-016-0850 | ND |
2014-08-06 | 4417-025-1025 | ND |
2014-10-15 | 4792-801-1140 | 9.97 ppb |
2014-10-15 | 4792-802-1315 | 9.28 ppb |
2014-10-15 | 4792-803-1225 | 10.7 ppb |
2014-10-15 | 4792-804-1055 | 6.36 ppb |
2014-10-15 | 4792-805-1305 | 9.12 ppb |
2014-10-15 | 4792-806-1120 | 9.61 ppb |
2014-10-15 | 4792-807-1245 | 13.5 ppb |
2014-10-15 | 4792-808-1205 | 7.57 ppb |
2014-11-12 | 4417-011-1025 | ND |
2014-11-12 | 4417-025-1105 | ND |
2015-01-15 | 1805-801-1105 | 7.97 ppb |
2015-01-15 | 1805-802-1140 | 9.13 ppb |
2015-01-15 | 1805-803-1150 | 10.5 ppb |
2015-01-15 | 1805-804-1230 | 9.31 ppb |
2015-01-15 | 1805-805-1200 | 11.8 ppb |
2015-01-15 | 1805-806-1045 | 9.85 ppb |
2015-01-15 | 1805-807-1210 | 9.01 ppb |
2015-01-15 | 1805-808-1125 | 5.38 ppb |
2015-02-18 | 4417-010-0950 | ND |
2015-02-18 | 4417-011-1025 | ND |
2015-02-18 | 4417-012-0840 | ND |
2015-03-30 | 4417-008-0840 | ND |
2015-03-30 | 4417-025-0855 | ND |
2015-04-15 | 1805-801-1005 | 12.1 ppb |
2015-04-15 | 1805-802-1035 | 13.2 ppb |
2015-04-15 | 1805-803-1050 | 13.0 ppb |
2015-04-15 | 1805-804-1215 | 3.83 ppb |
2015-04-15 | 1805-805-1105 | 13.9 ppb |
2015-04-15 | 1805-806-0945 | 11.7 ppb |
2015-04-15 | 1805-807-1115 | 13.0 ppb |
2015-04-15 | 1805-808-1025 | 12.2 ppb |
2015-05-05 | 4417-008-1045 | ND |
2015-05-05 | 4417-009-0840 | ND |
2015-05-05 | 4417-011-1030 | ND |
2015-06-08 | 4417-008-0915 | ND |
2015-06-08 | 4417-008-0930 | ND |
2015-07-15 | 1805-801-0929 | 12.3 ppb |
2015-07-15 | 1805-802-1015 | 13.0 ppb |
2015-07-15 | 1805-803-1028 | 13.8 ppb |
2015-07-15 | 1805-804-1112 | 12.0 ppb |
2015-07-15 | 1805-805-1040 | 14.9 ppb |
2015-07-15 | 1805-806-0908 | 12.5 ppb |
2015-07-15 | 1805-807-1051 | 13.3 ppb |
2015-07-15 | 1805-808-0955 | 10.6 ppb |
2015-07-30 | 4417-008-0920 | ND |
2015-07-30 | 4417-011-0940 | ND |
2015-07-30 | 4417-013-1110 | ND |
2015-07-30 | 4417-016-1010 | ND |
2015-07-30 | 4417-025-0905 | ND |
2015-10-14 | 1805-801-0850 | 7.00 ppb |
2015-10-14 | 1805-802-0930 | 17.6 ppb |
2015-10-14 | 1805-803-0942 | 13.5 ppb |
2015-10-14 | 1805-804-1030 | 10.5 ppb |
2015-10-14 | 1805-805-0955 | 14.8 ppb |
2015-10-14 | 1805-806-0750 | 8.99 ppb |
2015-10-14 | 1805-807-1015 | 18.5 ppb |
2015-10-14 | 1805-808-0920 | 7.44 ppb |
2015-11-03 | 4417-008-0940 | ND |
2015-11-03 | 4417-025-1000 | ND |
2015-11-05 | 4417-011-0810 | ND |
2016-01-13 | 1805-801-0807 | 11.4 ppb |
2016-01-13 | 1805-802-0850 | 8.48 ppb |
2016-01-13 | 1805-803-0859 | 17.9 ppb |
2016-01-13 | 1805-804-0828 | 5.58 ppb |
2016-01-13 | 1805-807-0920 | 14.9 ppb |
2016-01-13 | 1805-808-0840 | 12.3 ppb |
2016-01-14 | 1805-805-1050 | 11.3 ppb |
2016-01-14 | 1805-806-1005 | 15.0 ppb |
2016-02-02 | 4417-008-1030 | ND |
2016-02-02 | 4417-010-1115 | ND |
2016-02-02 | 4417-011-1010 | ND |
2016-02-02 | 4417-012-0805 | ND |
2016-02-02 | 4417-013-0935 | ND |
2016-02-02 | 4417-025-1050 | ND |
2016-04-13 | 1805-801-0832 | 10.1 ppb |
2016-04-13 | 1805-803-0925 | 8.79 ppb |
2016-04-13 | 1805-804-1001 | 12.4 ppb |
2016-04-13 | 1805-805-0936 | 12.0 ppb |
2016-04-13 | 1805-806-0810 | 11.1 ppb |
2016-04-13 | 1805-807-0946 | 20.1 ppb |
2016-04-13 | 1805-808-0914 | 6.64 ppb |
2016-04-27 | 1805-802-0945 | 8.05 ppb |
2016-05-03 | 4417-008-1020 | ND |
2016-05-03 | 4417-016-0850 | ND |
2016-05-03 | 4417-025-1005 | ND |
2016-05-25 | 4417-011-1040 | ND |
2016-07-12 | 1805-801-0815 | 9.82 ppb |
2016-07-12 | 1805-802-0845 | 9.24 ppb |
2016-07-12 | 1805-803-0855 | 10.8 ppb |
2016-07-12 | 1805-804-0935 | 9.52 ppb |
2016-07-12 | 1805-805-0905 | 10.8 ppb |
2016-07-12 | 1805-806-0730 | 8.96 ppb |
2016-07-12 | 1805-807-0920 | 11.3 ppb |
2016-07-12 | 1805-808-0835 | 8.60 ppb |
2016-07-28 | 4417-008-1020 | ND |
2016-07-28 | 4417-025-1045 | ND |
2016-08-17 | 4417-011-0830 | ND |
2016-09-14 | 4417-009-1100 | ND |
2016-09-22 | 4417-009-0840 | ND |
2016-10-12 | 1805-801-0805 | 7.37 ppb |
2016-10-12 | 1805-802-1024 | 7.08 ppb |
2016-10-12 | 1805-803-1034 | 6.80 ppb |
2016-10-12 | 1805-804-1102 | 6.32 ppb |
2016-10-12 | 1805-805-1041 | 5.98 ppb |
2016-10-12 | 1805-806-0737 | 6.11 ppb |
2016-10-12 | 1805-807-1047 | 9.00 ppb |
2016-10-12 | 1805-808-0820 | 4.06 ppb |
2016-10-17 | 4417-008-0850 | ND |
2016-10-17 | 4417-009-0810 | ND |
2016-11-08 | 4417-011-0935 | ND |
2016-11-08 | 4417-025-1015 | ND |
2017-01-12 | 1805-801-0954 | 12.4 ppb |
2017-01-12 | 1805-802-1114 | 16.2 ppb |
2017-01-12 | 1805-803-1128 | 11.9 ppb |
2017-01-12 | 1805-804-1220 | 12.1 ppb |
2017-01-12 | 1805-805-1139 | 15.4 ppb |
2017-01-12 | 1805-806-0911 | 13.7 ppb |
2017-01-12 | 1805-807-1146 | 11.9 ppb |
2017-01-12 | 1805-808-1050 | 11.6 ppb |
2017-02-16 | 4417-008-1030 | ND |
2017-02-16 | 4417-010-0950 | ND |
2017-02-16 | 4417-011-1020 | ND |
2017-02-16 | 4417-012-0925 | ND |
2017-02-16 | 4417-013-1105 | ND |
2017-02-16 | 4417-025-1045 | ND |
2017-04-12 | 1805-801-0805 | 7.51 ppb |
2017-04-12 | 1805-802-0918 | 5.50 ppb |
2017-04-12 | 1805-803-0926 | 6.22 ppb |
2017-04-12 | 1805-804-1020 | 9.39 ppb |
2017-04-12 | 1805-805-0936 | 5.39 ppb |
2017-04-12 | 1805-806-0740 | 4.83 ppb |
2017-04-12 | 1805-807-0945 | 6.47 ppb |
2017-04-12 | 1805-808-0821 | 9.81 ppb |
2017-04-19 | 4417-012-0850 | ND |
2017-05-17 | 4417-009-0830 | ND |
2017-05-17 | 4417-010-0945 | ND |
2017-05-17 | 4417-011-1015 | ND |
2017-05-17 | 4417-016-0850 | ND |
2017-05-17 | 4417-025-0805 | ND |
2017-07-12 | 1805-801-0818 | 6.08 ppb |
2017-07-12 | 1805-802-0840 | 4.83 ppb |
2017-07-12 | 1805-803-0850 | 4.93 ppb |
2017-07-12 | 1805-804-0937 | 17.6 ppb |
2017-07-12 | 1805-805-0855 | 4.54 ppb |
2017-07-12 | 1805-806-0800 | 5.04 ppb |
2017-07-12 | 1805-807-0915 | 4.68 ppb |
2017-07-12 | 1805-808-0830 | 4.46 ppb |
2017-08-02 | 4417-011-0855 | ND |
2017-08-17 | 4417-025-0935 | ND |
2017-09-19 | 4417-008-0900 | 1.10 ppb |
2017-10-11 | 1805-801-0934 | 13.0 ppb |
2017-10-11 | 1805-802-0959 | 17.8 ppb |
2017-10-11 | 1805-803-1009 | 8.85 ppb |
2017-10-11 | 1805-804-1048 | 17.2 ppb |
2017-10-11 | 1805-805-1021 | 17.1 ppb |
2017-10-11 | 1805-806-0915 | 7.73 ppb |
2017-10-11 | 1805-807-1030 | 9.16 ppb |
2017-10-11 | 1805-808-0948 | 15.1 ppb |
2017-10-25 | 4417-008-0820 | ND |
2017-10-25 | 4417-008-0830 | ND |
2017-10-25 | 4417-008-0840 | ND |
2017-10-25 | 4417-025-0900 | ND |
2018-01-10 | 1805-801-0802 | 7.52 ppb |
2018-01-10 | 1805-802-0832 | 8.29 ppb |
2018-01-10 | 1805-803-0845 | 10.4 ppb |
2018-01-10 | 1805-804-0925 | 9.33 ppb |
2018-01-10 | 1805-806-0741 | 6.21 ppb |
2018-01-10 | 1805-806-0854 | 8.20 ppb |
2018-01-10 | 1805-807-0907 | 9.24 ppb |
2018-01-10 | 1805-808-0818 | 6.66 ppb |
2018-01-24 | 4417-013-1100 | ND |
2018-02-14 | 4417-025-0840 | ND |
2018-03-07 | 4417-008-0800 | ND |
2018-04-11 | 1805-801-0843 | 7.65 ppb |
2018-04-11 | 1805-802-0951 | 16.3 ppb |
2018-04-11 | 1805-803-0940 | 17.5 ppb |
2018-04-11 | 1805-804-1018 | 21.9 ppb |
2018-04-11 | 1805-805-0930 | 7.82 ppb |
2018-04-11 | 1805-806-1045 | 15.6 ppb |
2018-04-11 | 1805-807-0921 | 15.6 ppb |
2018-04-11 | 1805-808-1006 | 8.68 ppb |
2018-05-01 | 4417-008-1115 | ND |
2018-05-01 | 4417-009-1000 | ND |
2018-05-01 | 4417-010-1020 | ND |
2018-05-01 | 4417-016-0945 | ND |
2018-05-01 | 4417-025-1100 | ND |
2018-06-07 | 4417-011-0820 | ND |
2018-07-10 | 1805-801-0800 | 9.24 ppb |
2018-07-10 | 1805-802-0925 | 7.68 ppb |
2018-07-10 | 1805-803-0932 | 8.84 ppb |
2018-07-10 | 1805-804-0910 | 9.02 ppb |
2018-07-10 | 1805-805-0940 | 9.51 ppb |
2018-07-10 | 1805-806-0745 | 8.30 ppb |
2018-07-10 | 1805-807-0955 | 9.39 ppb |
2018-07-10 | 1805-808-0916 | 8.48 ppb |
2018-07-31 | 4417-025-0845 | ND |
2018-08-07 | 4417-011-0835 | ND |
2018-09-19 | 4417-008-0825 | ND |
2018-10-10 | 1805-801-0915 | 8.68 ppb |
2018-10-10 | 1805-802-0802 | 8.12 ppb |
2018-10-10 | 1805-803-0830 | 8.39 ppb |
2018-10-10 | 1805-804-0905 | 13.6 ppb |
2018-10-10 | 1805-805-0810 | 8.63 ppb |
2018-10-10 | 1805-806-0930 | 1.16 ppb |
2018-10-10 | 1805-807-0820 | 8.33 ppb |
2018-10-10 | 1805-808-0840 | 7.07 ppb |
2018-10-23 | 4417-008-1000 | ND |
2018-10-23 | 4417-011-0945 | ND |
2018-10-23 | 4417-025-1015 | ND |
2019-01-16 | 4417-008-0920 | ND |
2019-01-16 | 4417-010-1025 | ND |
2019-01-16 | 4417-011-0835 | ND |
2019-01-16 | 4417-012-1000 | ND |
2019-01-16 | 4417-013-0730 | ND |
2019-01-16 | 4417-016-0805 | ND |
2019-01-16 | 4417-025-0900 | ND |
2019-04-09 | 4417-009-0900 | ND |
2019-04-09 | 4417-025-1030 | ND |
2019-04-11 | 4417-008-0935 | ND |
2019-07-01 | 4417-011-1015 | ND |
2019-07-01 | 4417-025-0945 | ND |
2019-07-10 | 1805-801-0840 | 7.92 ppb |
2019-07-10 | 1805-802-0905 | 6.66 ppb |
2019-07-10 | 1805-803-0912 | 8.50 ppb |
2019-07-10 | 1805-804-0735 | 22.2 ppb |
2019-07-10 | 1805-805-0920 | 8.53 ppb |
2019-07-10 | 1805-806-0825 | 7.98 ppb |
2019-07-10 | 1805-807-0930 | 9.09 ppb |
2019-07-10 | 1805-808-0855 | 8.85 ppb |
2019-10-09 | 1805-801-0850 | 6.01 ppb |
2019-10-09 | 1805-802-0930 | 6.72 ppb |
2019-10-09 | 1805-803-1030 | 7.24 ppb |
2019-10-09 | 1805-804-1130 | 11.4 ppb |
2019-10-09 | 1805-805-1035 | 6.68 ppb |
2019-10-09 | 1805-806-0830 | 6.17 ppb |
2019-10-09 | 1805-807-1040 | 22.3 ppb |
2019-10-09 | 1805-808-0915 | 4.22 ppb |
2019-10-29 | 4417-025-0905 | ND |