Dibromochloromethane
Marina Coast Water District
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 |
---|---|---|---|---|
2014 | 0.502 ppb | 47 | 13 | ND - 3.00 ppb |
2015 | 0.587 ppb | 47 | 14 | ND - 3.20 ppb |
2016 | 0.484 ppb | 49 | 15 | ND - 3.10 ppb |
2017 | 0.770 ppb | 37 | 16 | ND - 2.80 ppb |
2018 | 0.670 ppb | 37 | 16 | ND - 2.10 ppb |
2019 | 0.711 ppb | 38 | 15 | ND - 3.00 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 |
---|---|---|
2014-01-07 | 9590-026-1005 | ND |
2014-01-07 | 9590-028-0905 | ND |
2014-01-07 | 9590-033-0920 | ND |
2014-01-07 | 9590-034-0935 | ND |
2014-01-07 | 9590-801-0845 | ND |
2014-01-07 | 9590-802-0853 | ND |
2014-01-07 | 9590-803-0910 | 1.30 ppb |
2014-01-07 | 9590-804-0810 | 1.20 ppb |
2014-02-26 | 2909-026-0805 | ND |
2014-02-26 | 2909-028-0745 | ND |
2014-02-26 | 2909-028-0750 | ND |
2014-04-08 | 9590-801-0745 | 1.20 ppb |
2014-04-08 | 9590-802-0730 | 1.20 ppb |
2014-04-08 | 9590-803-0800 | 2.90 ppb |
2014-04-08 | 9590-804-0700 | 2.20 ppb |
2014-04-22 | 9590-026-0840 | ND |
2014-04-22 | 9590-028-0735 | ND |
2014-04-22 | 9590-033-0755 | ND |
2014-04-22 | 9590-034-0815 | ND |
2014-06-26 | 2909-026-0805 | ND |
2014-06-26 | 2909-028-0745 | ND |
2014-06-26 | 2909-028-0750 | ND |
2014-07-08 | 9590-008-0741 | ND |
2014-07-08 | 9590-010-1041 | ND |
2014-07-08 | 9590-026-1000 | ND |
2014-07-08 | 9590-028-0900 | ND |
2014-07-08 | 9590-033-0930 | ND |
2014-07-08 | 9590-034-0828 | ND |
2014-07-08 | 9590-801-0900 | ND |
2014-07-08 | 9590-802-0822 | 1.40 ppb |
2014-07-08 | 9590-803-0750 | 1.60 ppb |
2014-07-08 | 9590-804-0930 | 1.20 ppb |
2014-07-22 | 9590-009-0745 | ND |
2014-09-18 | 2909-026-0825 | ND |
2014-09-18 | 2909-028-0754 | ND |
2014-09-18 | 2909-028-0800 | ND |
2014-10-01 | 9590-801-0810 | 2.70 ppb |
2014-10-01 | 9590-802-0730 | 2.40 ppb |
2014-10-01 | 9590-803-0850 | 3.00 ppb |
2014-10-01 | 9590-804-0700 | 1.30 ppb |
2014-10-29 | 9590-026-0920 | ND |
2014-10-29 | 9590-028-0800 | ND |
2014-10-29 | 9590-033-0820 | ND |
2014-10-29 | 9590-034-0845 | ND |
2014-12-18 | 2909-026-0830 | ND |
2014-12-18 | 2909-028-0805 | ND |
2014-12-18 | 2909-028-0810 | ND |
2015-01-06 | 9590-026-0942 | ND |
2015-01-06 | 9590-028-0917 | ND |
2015-01-06 | 9590-033-0853 | ND |
2015-01-06 | 9590-034-0826 | ND |
2015-01-13 | 9590-801-0835 | 1.10 ppb |
2015-01-13 | 9590-802-0810 | 2.00 ppb |
2015-01-13 | 9590-803-0855 | 3.20 ppb |
2015-01-13 | 9590-804-0920 | 2.20 ppb |
2015-03-26 | 2909-026-0810 | ND |
2015-03-26 | 2909-028-0755 | ND |
2015-03-26 | 2909-028-0800 | ND |
2015-04-14 | 9590-026-0930 | ND |
2015-04-14 | 9590-028-0840 | ND |
2015-04-14 | 9590-033-0850 | ND |
2015-04-14 | 9590-034-0820 | ND |
2015-04-14 | 9590-801-0840 | ND |
2015-04-14 | 9590-802-0910 | ND |
2015-04-14 | 9590-803-0749 | 3.00 ppb |
2015-04-14 | 9590-804-0939 | 1.40 ppb |
2015-06-24 | 2909-026-0752 | ND |
2015-06-24 | 2909-028-0735 | ND |
2015-06-24 | 2909-028-0740 | ND |
2015-07-07 | 9590-008-0830 | ND |
2015-07-07 | 9590-009-0805 | ND |
2015-07-07 | 9590-010-0745 | ND |
2015-07-07 | 9590-026-1020 | ND |
2015-07-07 | 9590-028-0950 | ND |
2015-07-07 | 9590-033-0930 | ND |
2015-07-07 | 9590-034-0900 | ND |
2015-07-07 | 9590-801-0830 | 1.90 ppb |
2015-07-07 | 9590-802-0800 | 1.60 ppb |
2015-07-07 | 9590-803-0847 | 1.80 ppb |
2015-07-07 | 9590-804-0730 | 1.90 ppb |
2015-09-30 | 2909-026-0820 | ND |
2015-09-30 | 2909-028-0745 | ND |
2015-09-30 | 2909-028-0750 | ND |
2015-10-20 | 9590-801-0900 | 1.40 ppb |
2015-10-20 | 9590-802-0840 | 1.80 ppb |
2015-10-20 | 9590-803-0815 | 1.70 ppb |
2015-10-20 | 9590-804-0945 | 2.60 ppb |
2015-10-27 | 9590-026-0926 | ND |
2015-10-27 | 9590-028-0905 | ND |
2015-10-27 | 9590-033-0849 | ND |
2015-10-27 | 9590-034-0814 | ND |
2015-12-17 | 2909-026-0820 | ND |
2015-12-17 | 2909-028-0800 | ND |
2015-12-17 | 2909-028-0805 | ND |
2016-01-12 | 9590-026-0949 | ND |
2016-01-12 | 9590-028-0927 | ND |
2016-01-12 | 9590-033-0908 | ND |
2016-01-12 | 9590-034-0825 | ND |
2016-01-12 | 9590-801-0840 | 1.60 ppb |
2016-01-12 | 9590-802-0820 | 1.50 ppb |
2016-01-12 | 9590-803-0800 | 1.80 ppb |
2016-01-12 | 9590-804-0905 | 1.20 ppb |
2016-03-17 | 2909-026-0820 | ND |
2016-03-17 | 2909-028-0755 | ND |
2016-03-17 | 2909-028-0800 | ND |
2016-04-05 | 9590-026-0855 | ND |
2016-04-05 | 9590-028-0838 | ND |
2016-04-05 | 9590-033-0816 | ND |
2016-04-05 | 9590-034-0754 | ND |
2016-04-05 | 9590-801-0810 | 1.10 ppb |
2016-04-05 | 9590-802-0730 | ND |
2016-04-05 | 9590-803-0840 | 1.40 ppb |
2016-04-05 | 9590-804-0915 | 1.20 ppb |
2016-06-16 | 2909-026-0815 | ND |
2016-06-16 | 2909-026-0820 | ND |
2016-06-16 | 2909-028-0750 | ND |
2016-07-12 | 9590-026-1025 | ND |
2016-07-12 | 9590-028-0945 | ND |
2016-07-12 | 9590-033-0915 | ND |
2016-07-12 | 9590-034-0835 | ND |
2016-07-12 | 9590-801-0824 | 1.60 ppb |
2016-07-12 | 9590-802-0753 | 1.20 ppb |
2016-07-12 | 9590-803-0851 | 2.20 ppb |
2016-07-12 | 9590-804-0920 | 1.90 ppb |
2016-07-26 | 9590-008-0805 | ND |
2016-07-26 | 9590-009-0835 | ND |
2016-08-22 | 9590-027-1247 | ND |
2016-09-15 | 2909-026-0742 | ND |
2016-09-15 | 2909-026-0751 | ND |
2016-09-15 | 2909-028-0801 | ND |
2016-10-11 | 9590-026-0945 | ND |
2016-10-11 | 9590-027-0844 | ND |
2016-10-11 | 9590-028-0900 | ND |
2016-10-11 | 9590-033-0918 | ND |
2016-10-11 | 9590-034-0823 | ND |
2016-10-11 | 9590-801-0921 | 1.20 ppb |
2016-10-11 | 9590-802-0858 | 1.30 ppb |
2016-10-11 | 9590-803-0833 | 3.10 ppb |
2016-10-11 | 9590-804-1004 | 1.40 ppb |
2016-12-08 | 2909-026-0840 | ND |
2016-12-08 | 2909-026-0850 | ND |
2016-12-08 | 2909-027-0815 | ND |
2016-12-08 | 2909-028-0800 | ND |
2017-01-10 | 9590-026-0849 | ND |
2017-01-10 | 9590-027-1013 | ND |
2017-01-10 | 9590-028-0820 | ND |
2017-01-10 | 9590-033-0831 | ND |
2017-01-10 | 9590-034-0803 | ND |
2017-01-10 | 9590-801-0850 | 1.80 ppb |
2017-01-10 | 9590-802-0835 | 2.00 ppb |
2017-01-10 | 9590-803-0818 | 2.80 ppb |
2017-01-10 | 9590-804-0914 | 1.80 ppb |
2017-04-04 | 9590-026-0925 | ND |
2017-04-04 | 9590-027-0820 | ND |
2017-04-04 | 9590-028-0905 | ND |
2017-04-04 | 9590-033-0900 | ND |
2017-04-04 | 9590-034-0840 | ND |
2017-04-04 | 9590-801-0822 | 2.00 ppb |
2017-04-04 | 9590-802-0845 | 1.60 ppb |
2017-04-04 | 9590-803-0800 | 2.00 ppb |
2017-04-04 | 9590-804-0930 | 1.40 ppb |
2017-07-18 | 9590-008-0839 | ND |
2017-07-18 | 9590-009-0818 | ND |
2017-07-18 | 9590-026-1146 | ND |
2017-07-18 | 9590-027-1000 | ND |
2017-07-18 | 9590-028-1032 | ND |
2017-07-18 | 9590-033-1110 | ND |
2017-07-18 | 9590-034-0925 | ND |
2017-07-18 | 9590-801-0819 | 1.90 ppb |
2017-07-18 | 9590-802-0842 | 1.20 ppb |
2017-07-18 | 9590-803-0924 | 1.60 ppb |
2017-07-18 | 9590-804-0742 | 1.30 ppb |
2017-10-10 | 9590-027-0806 | ND |
2017-10-10 | 9590-801-0815 | 1.90 ppb |
2017-10-10 | 9590-802-0848 | 1.60 ppb |
2017-10-10 | 9590-803-0748 | 2.30 ppb |
2017-10-10 | 9590-804-0924 | 1.30 ppb |
2017-10-31 | 9590-026-0910 | ND |
2017-10-31 | 9590-028-0945 | ND |
2017-10-31 | 9590-033-1000 | ND |
2018-01-09 | 9590-026-1008 | ND |
2018-01-09 | 9590-027-0914 | ND |
2018-01-09 | 9590-028-0940 | ND |
2018-01-09 | 9590-033-0954 | ND |
2018-01-09 | 9590-801-0910 | 2.10 ppb |
2018-01-09 | 9590-802-0930 | 1.50 ppb |
2018-01-09 | 9590-803-0950 | 1.50 ppb |
2018-01-09 | 9590-804-0827 | 1.80 ppb |
2018-03-26 | 9590-034-0923 | ND |
2018-04-17 | 9590-026-1005 | ND |
2018-04-17 | 9590-027-0900 | ND |
2018-04-17 | 9590-028-0917 | ND |
2018-04-17 | 9590-033-0934 | ND |
2018-04-17 | 9590-801-0730 | 1.30 ppb |
2018-04-17 | 9590-802-0800 | 1.30 ppb |
2018-04-17 | 9590-803-0700 | 1.70 ppb |
2018-04-17 | 9590-804-0830 | 1.40 ppb |
2018-07-10 | 9590-008-0810 | ND |
2018-07-10 | 9590-009-0835 | ND |
2018-07-10 | 9590-026-1035 | ND |
2018-07-10 | 9590-027-0925 | ND |
2018-07-10 | 9590-028-0945 | ND |
2018-07-10 | 9590-801-0851 | 1.40 ppb |
2018-07-10 | 9590-802-0926 | 1.30 ppb |
2018-07-10 | 9590-803-0945 | 1.50 ppb |
2018-07-10 | 9590-804-0816 | 1.50 ppb |
2018-07-30 | 9590-033-0855 | ND |
2018-09-10 | 9590-034-0833 | ND |
2018-11-06 | 9590-026-1104 | ND |
2018-11-06 | 9590-027-0920 | ND |
2018-11-06 | 9590-028-0950 | ND |
2018-11-06 | 9590-033-1025 | ND |
2018-11-06 | 9590-801-0850 | 1.80 ppb |
2018-11-06 | 9590-802-0745 | 1.50 ppb |
2018-11-06 | 9590-803-0820 | 1.80 ppb |
2018-11-06 | 9590-804-0930 | 1.40 ppb |
2018-11-27 | 9590-034-1100 | ND |
2019-01-23 | 9590-026-1005 | ND |
2019-01-23 | 9590-027-0800 | ND |
2019-01-23 | 9590-028-0820 | ND |
2019-01-23 | 9590-033-0845 | ND |
2019-01-23 | 9590-034-0930 | ND |
2019-01-23 | 9590-801-0842 | 1.40 ppb |
2019-01-23 | 9590-802-0908 | 1.60 ppb |
2019-01-23 | 9590-803-0801 | 2.00 ppb |
2019-01-23 | 9590-804-0938 | 1.70 ppb |
2019-05-15 | 9590-026-1237 | ND |
2019-05-15 | 9590-027-1008 | ND |
2019-05-15 | 9590-028-1030 | ND |
2019-05-15 | 9590-033-1050 | ND |
2019-05-15 | 9590-801-0925 | 2.40 ppb |
2019-05-15 | 9590-802-0910 | 2.00 ppb |
2019-05-15 | 9590-803-0845 | 2.20 ppb |
2019-05-15 | 9590-804-0955 | 1.80 ppb |
2019-06-21 | 9590-034-1145 | ND |
2019-07-30 | 9590-008-0900 | ND |
2019-07-30 | 9590-009-0950 | ND |
2019-07-30 | 9590-026-1020 | ND |
2019-07-30 | 9590-027-0815 | ND |
2019-07-30 | 9590-028-0705 | ND |
2019-07-30 | 9590-033-0740 | ND |
2019-07-30 | 9590-034-0630 | ND |
2019-07-30 | 9590-801-0845 | ND |
2019-07-30 | 9590-802-0810 | 1.90 ppb |
2019-07-30 | 9590-803-0830 | 3.00 ppb |
2019-07-30 | 9590-804-0915 | 1.000 ppb |
2019-10-09 | 9590-801-0840 | 1.10 ppb |
2019-10-09 | 9590-802-0810 | 1.70 ppb |
2019-10-09 | 9590-803-0745 | 2.20 ppb |
2019-10-09 | 9590-804-0915 | 1.000 ppb |
2019-10-22 | 9590-026-1030 | ND |
2019-10-22 | 9590-027-0840 | ND |
2019-10-22 | 9590-028-0900 | ND |
2019-10-22 | 9590-033-0920 | ND |
2019-10-22 | 9590-034-0805 | ND |