Bromodichloromethane
Monte Vista 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 2.78 ppb | 56 | 26 | ND - 10.00 ppb |
2015 | 1.98 ppb | 45 | 16 | ND - 17.3 ppb |
2016 | 7.09 ppb | 43 | 28 | ND - 20.4 ppb |
2017 | 5.11 ppb | 39 | 24 | ND - 15.6 ppb |
2018 | 11.8 ppb | 76 | 68 | ND - 23.2 ppb |
2019 | 8.33 ppb | 58 | 42 | ND - 21.5 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 |
---|---|---|
2014-01-06 | 9590-601-1020 | 8.70 ppb |
2014-01-06 | 9590-602-1035 | 9.50 ppb |
2014-01-06 | 9590-603-1005 | 10.00 ppb |
2014-01-06 | 9590-604-1050 | 9.40 ppb |
2014-01-06 | 9590-605-1100 | 1.40 ppb |
2014-01-06 | 9590-606-0915 | ND |
2014-01-06 | 9590-607-0855 | ND |
2014-01-06 | 9590-608-0945 | 10.00 ppb |
2014-01-13 | 9590-036-1045 | ND |
2014-01-13 | 9590-038-1145 | ND |
2014-01-13 | 9590-039-1350 | ND |
2014-02-10 | 9590-036-1010 | ND |
2014-02-10 | 9590-038-0945 | ND |
2014-02-20 | 9590-039-1300 | ND |
2014-03-05 | 9590-036-1020 | ND |
2014-03-05 | 9590-038-1000 | ND |
2014-03-06 | 9590-039-1320 | ND |
2014-04-02 | 9590-036-1250 | ND |
2014-04-02 | 9590-038-1230 | ND |
2014-04-03 | 9590-039-1300 | ND |
2014-04-09 | 9590-601-0945 | 8.30 ppb |
2014-04-09 | 9590-602-1010 | 8.60 ppb |
2014-04-09 | 9590-603-0925 | 8.50 ppb |
2014-04-09 | 9590-604-1025 | 8.20 ppb |
2014-04-09 | 9590-605-1045 | 1.60 ppb |
2014-04-09 | 9590-606-0845 | 1.10 ppb |
2014-04-09 | 9590-607-0815 | 1.90 ppb |
2014-04-09 | 9590-608-0910 | 8.40 ppb |
2014-05-07 | 9590-036-0930 | ND |
2014-05-07 | 9590-038-1000 | ND |
2014-05-07 | 9590-039-1315 | 1.10 ppb |
2014-06-02 | 9590-038-1050 | ND |
2014-07-01 | 3761-036-1140 | ND |
2014-07-02 | 3761-039-1310 | ND |
2014-07-07 | 3761-020-1000 | 7.70 ppb |
2014-07-07 | 3761-022-0832 | 4.60 ppb |
2014-07-07 | 3761-023-0855 | 1.60 ppb |
2014-07-07 | 3761-030-0933 | ND |
2014-07-07 | 3761-031-1027 | ND |
2014-07-07 | 3761-601-0950 | 7.90 ppb |
2014-07-07 | 3761-604-1013 | 4.30 ppb |
2014-07-07 | 3761-608-0920 | ND |
2014-08-14 | 3761-039-0810 | ND |
2014-08-18 | 3761-039-1310 | ND |
2014-09-15 | 3761-038-1045 | ND |
2014-09-17 | 3761-039-1250 | ND |
2014-10-20 | 3761-039-1300 | ND |
2014-10-21 | 3761-020-1435 | 8.50 ppb |
2014-10-21 | 3761-022-1300 | 4.20 ppb |
2014-10-21 | 3761-023-1315 | 3.00 ppb |
2014-10-21 | 3761-030-1415 | ND |
2014-10-21 | 3761-031-1510 | 1.20 ppb |
2014-10-21 | 3761-601-1400 | 6.80 ppb |
2014-10-21 | 3761-604-1500 | 9.30 ppb |
2014-10-21 | 3761-608-1345 | ND |
2014-12-03 | 3761-039-1200 | ND |
2015-01-08 | 3761-020-1005 | 2.60 ppb |
2015-01-08 | 3761-022-0810 | ND |
2015-01-08 | 3761-023-0835 | ND |
2015-01-08 | 3761-031-1026 | 2.60 ppb |
2015-01-08 | 3761-601-0940 | ND |
2015-01-08 | 3761-603-0911 | ND |
2015-01-08 | 3761-604-1015 | 1.60 ppb |
2015-01-08 | 3761-608-0900 | 1.20 ppb |
2015-01-12 | 3761-039-1300 | ND |
2015-02-04 | 3761-039-1300 | ND |
2015-03-09 | 3761-038-1000 | ND |
2015-03-09 | 3761-039-1015 | ND |
2015-03-11 | 3761-039-1105 | ND |
2015-04-15 | 3761-020-1020 | 2.10 ppb |
2015-04-15 | 3761-022-0805 | ND |
2015-04-15 | 3761-023-0825 | ND |
2015-04-15 | 3761-031-1045 | 1.40 ppb |
2015-04-15 | 3761-601-1005 | 1.80 ppb |
2015-04-15 | 3761-603-0955 | ND |
2015-04-15 | 3761-604-1035 | ND |
2015-04-15 | 3761-608-0942 | ND |
2015-04-20 | 3761-039-1130 | ND |
2015-05-19 | 3761-039-0911 | ND |
2015-06-09 | 3761-039-0000 | ND |
2015-06-10 | 3761-036-1000 | ND |
2015-07-01 | 3761-601-1040 | ND |
2015-07-01 | 3761-602-1055 | 1.60 ppb |
2015-07-01 | 3761-603-1026 | ND |
2015-07-01 | 3761-604-1124 | ND |
2015-07-01 | 3761-605-1134 | 1.30 ppb |
2015-07-01 | 3761-606-0939 | ND |
2015-07-01 | 3761-607-0920 | 1.30 ppb |
2015-07-01 | 3761-608-1011 | ND |
2015-07-07 | 3761-039-0900 | ND |
2015-07-08 | 3761-038-1000 | ND |
2015-08-05 | 3761-039-0820 | ND |
2015-09-15 | 3761-039-0830 | ND |
2015-10-08 | 3761-601-0925 | 11.4 ppb |
2015-10-08 | 3761-602-0940 | 17.3 ppb |
2015-10-08 | 3761-603-0910 | 15.3 ppb |
2015-10-08 | 3761-604-0950 | 14.9 ppb |
2015-10-08 | 3761-605-1000 | 3.70 ppb |
2015-10-08 | 3761-606-0836 | ND |
2015-10-08 | 3761-607-0815 | ND |
2015-10-08 | 3761-608-0900 | 9.20 ppb |
2016-01-13 | 3761-601-1000 | 7.80 ppb |
2016-01-13 | 3761-602-1015 | 7.90 ppb |
2016-01-13 | 3761-603-0940 | 2.50 ppb |
2016-01-13 | 3761-604-1025 | 6.10 ppb |
2016-01-13 | 3761-605-1045 | 1.20 ppb |
2016-01-13 | 3761-606-0900 | ND |
2016-01-13 | 3761-607-0840 | ND |
2016-01-13 | 3761-608-0930 | 4.70 ppb |
2016-04-07 | 3761-601-0905 | 20.4 ppb |
2016-04-07 | 3761-602-0855 | 20.3 ppb |
2016-04-07 | 3761-603-0920 | 20.3 ppb |
2016-04-07 | 3761-604-0845 | 14.9 ppb |
2016-04-07 | 3761-605-1040 | 18.0 ppb |
2016-04-07 | 3761-606-0950 | 11.6 ppb |
2016-04-07 | 3761-607-1010 | 9.90 ppb |
2016-04-07 | 3761-608-0930 | 18.0 ppb |
2016-07-13 | 3761-601-1411 | 11.4 ppb |
2016-07-13 | 3761-602-1357 | 11.4 ppb |
2016-07-13 | 3761-603-1425 | 11.4 ppb |
2016-07-13 | 3761-604-1348 | 11.6 ppb |
2016-07-13 | 3761-605-1330 | 11.9 ppb |
2016-07-13 | 3761-606-1500 | 11.3 ppb |
2016-07-13 | 3761-607-1318 | 4.30 ppb |
2016-07-13 | 3761-608-1433 | 13.5 ppb |
2016-08-01 | 3761-004-1035 | ND |
2016-08-01 | 3761-013-0950 | ND |
2016-08-01 | 3761-024-1050 | ND |
2016-08-01 | 3761-039-0930 | ND |
2016-08-02 | 3761-009-1410 | ND |
2016-08-02 | 3761-034-1110 | ND |
2016-08-03 | 3761-037-0945 | ND |
2016-08-03 | 3761-045-1145 | ND |
2016-08-04 | 3761-038-0935 | ND |
2016-08-08 | 3761-003-1010 | ND |
2016-08-08 | 3761-025-1250 | ND |
2016-10-03 | 3761-601-1034 | 10.9 ppb |
2016-10-03 | 3761-602-1047 | 11.7 ppb |
2016-10-03 | 3761-603-1019 | ND |
2016-10-03 | 3761-604-1059 | 8.20 ppb |
2016-10-03 | 3761-605-1110 | 6.70 ppb |
2016-10-03 | 3761-606-0930 | 4.40 ppb |
2016-10-03 | 3761-607-0910 | 12.6 ppb |
2016-10-03 | 3761-608-0955 | ND |
2017-01-03 | 3761-601-1445 | ND |
2017-01-03 | 3761-602-1310 | ND |
2017-01-03 | 3761-603-1430 | ND |
2017-01-03 | 3761-604-1523 | ND |
2017-01-03 | 3761-605-1538 | ND |
2017-01-03 | 3761-606-1345 | ND |
2017-01-03 | 3761-607-1330 | ND |
2017-01-03 | 3761-608-1410 | ND |
2017-04-03 | 3761-601-1400 | ND |
2017-04-03 | 3761-602-1415 | 1.30 ppb |
2017-04-03 | 3761-603-1340 | ND |
2017-04-03 | 3761-604-1430 | ND |
2017-04-03 | 3761-605-1450 | 1.20 ppb |
2017-04-03 | 3761-606-1310 | 2.10 ppb |
2017-04-03 | 3761-607-1250 | 1.70 ppb |
2017-04-03 | 3761-608-1335 | ND |
2017-06-20 | 3761-036-0845 | ND |
2017-07-06 | 3761-601-1405 | 7.70 ppb |
2017-07-06 | 3761-602-1416 | 7.50 ppb |
2017-07-06 | 3761-603-1357 | ND |
2017-07-06 | 3761-604-1427 | 4.50 ppb |
2017-07-06 | 3761-605-1440 | 1.50 ppb |
2017-07-06 | 3761-606-1320 | 2.60 ppb |
2017-07-06 | 3761-607-1300 | 9.90 ppb |
2017-07-06 | 3761-608-1342 | ND |
2017-10-04 | 3761-601-1520 | 12.1 ppb |
2017-10-04 | 3761-602-1530 | 12.5 ppb |
2017-10-04 | 3761-603-1510 | 12.9 ppb |
2017-10-04 | 3761-604-1540 | 13.6 ppb |
2017-10-04 | 3761-605-1600 | 1.10 ppb |
2017-10-04 | 3761-606-1440 | 2.70 ppb |
2017-10-04 | 3761-607-1422 | 10.7 ppb |
2017-10-04 | 3761-608-1450 | 12.5 ppb |
2017-10-30 | 3761-036-1420 | 14.5 ppb |
2017-10-30 | 3761-039-1410 | 14.3 ppb |
2017-11-08 | 3761-036-0815 | 11.6 ppb |
2017-11-08 | 3761-039-0835 | 12.7 ppb |
2017-12-07 | 3761-036-0815 | 12.5 ppb |
2017-12-07 | 3761-039-0830 | 15.6 ppb |
2018-01-10 | 3761-036-1540 | 16.6 ppb |
2018-01-10 | 3761-039-1600 | 18.2 ppb |
2018-01-10 | 3761-601-1420 | 16.5 ppb |
2018-01-10 | 3761-602-1430 | 18.7 ppb |
2018-01-10 | 3761-603-1405 | 19.0 ppb |
2018-01-10 | 3761-604-1445 | 18.6 ppb |
2018-01-10 | 3761-605-1300 | 10.6 ppb |
2018-01-10 | 3761-606-1320 | 3.20 ppb |
2018-01-10 | 3761-607-1310 | 9.90 ppb |
2018-01-10 | 3761-608-1350 | 16.4 ppb |
2018-02-12 | 3761-036-1215 | 16.0 ppb |
2018-02-12 | 3761-038-1300 | 13.4 ppb |
2018-02-12 | 3761-039-1145 | 16.4 ppb |
2018-02-22 | 3761-003-0645 | 2.20 ppb |
2018-03-20 | 3761-036-0900 | 11.3 ppb |
2018-03-20 | 3761-038-0840 | 16.0 ppb |
2018-03-20 | 3761-039-1055 | 14.8 ppb |
2018-04-10 | 3761-003-1000 | 13.4 ppb |
2018-04-10 | 3761-036-0910 | 14.0 ppb |
2018-04-10 | 3761-038-0900 | 13.8 ppb |
2018-04-10 | 3761-039-0925 | 13.4 ppb |
2018-04-25 | 3761-036-0920 | 22.6 ppb |
2018-04-25 | 3761-038-0815 | 22.1 ppb |
2018-04-25 | 3761-601-0930 | ND |
2018-04-25 | 3761-602-1000 | 1.20 ppb |
2018-04-25 | 3761-603-0850 | ND |
2018-04-25 | 3761-604-1015 | ND |
2018-04-25 | 3761-605-0810 | 1.50 ppb |
2018-04-25 | 3761-606-1105 | 7.30 ppb |
2018-04-25 | 3761-607-1040 | ND |
2018-04-25 | 3761-608-0910 | ND |
2018-05-02 | 3761-003-1040 | 21.6 ppb |
2018-05-02 | 3761-036-0950 | 22.0 ppb |
2018-05-02 | 3761-038-0930 | 21.9 ppb |
2018-05-02 | 3761-039-1005 | 19.9 ppb |
2018-05-29 | 3761-003-1005 | 15.5 ppb |
2018-05-29 | 3761-036-0945 | 18.8 ppb |
2018-05-29 | 3761-038-0935 | 19.5 ppb |
2018-06-05 | 3761-036-0915 | 13.9 ppb |
2018-06-05 | 3761-038-0845 | 20.5 ppb |
2018-06-26 | 3761-003-0845 | 10.1 ppb |
2018-07-10 | 3761-003-0920 | 3.10 ppb |
2018-07-10 | 3761-036-0820 | 8.90 ppb |
2018-07-25 | 3761-038-1125 | 7.40 ppb |
2018-07-26 | 3761-602-1130 | 13.9 ppb |
2018-07-26 | 3761-603-1150 | 14.0 ppb |
2018-07-26 | 3761-604-1110 | 14.4 ppb |
2018-07-26 | 3761-605-1055 | 2.00 ppb |
2018-07-26 | 3761-606-1015 | 5.60 ppb |
2018-07-26 | 3761-607-1040 | 7.40 ppb |
2018-07-31 | 3761-601-1210 | 20.0 ppb |
2018-07-31 | 3761-608-1100 | 17.8 ppb |
2018-08-14 | 3761-003-0855 | ND |
2018-08-28 | 3761-036-1210 | 4.40 ppb |
2018-08-28 | 3761-038-1140 | 7.30 ppb |
2018-09-20 | 3761-036-1250 | ND |
2018-10-01 | 3761-601-1010 | 14.4 ppb |
2018-10-01 | 3761-602-1025 | 14.9 ppb |
2018-10-01 | 3761-603-0955 | 6.50 ppb |
2018-10-01 | 3761-604-1040 | 14.4 ppb |
2018-10-01 | 3761-605-1050 | 1.90 ppb |
2018-10-01 | 3761-606-0915 | 2.50 ppb |
2018-10-01 | 3761-607-0900 | 5.60 ppb |
2018-10-01 | 3761-608-0940 | 7.30 ppb |
2018-10-02 | 3761-003-0900 | ND |
2018-10-09 | 3761-039-1000 | 16.3 ppb |
2018-10-23 | 3761-036-1135 | 14.3 ppb |
2018-10-24 | 3761-003-1045 | 13.2 ppb |
2018-10-24 | 3761-036-1105 | 14.6 ppb |
2018-11-06 | 3761-003-0930 | 12.2 ppb |
2018-11-20 | 3761-003-1150 | 13.7 ppb |
2018-11-20 | 3761-036-0905 | 12.4 ppb |
2018-11-20 | 3761-036-0925 | 13.0 ppb |
2018-11-20 | 3761-039-1055 | 17.2 ppb |
2018-12-04 | 3761-036-0900 | 23.2 ppb |
2018-12-06 | 3761-003-0910 | 22.7 ppb |
2019-01-10 | 3761-601-0950 | 14.3 ppb |
2019-01-10 | 3761-602-1005 | 16.2 ppb |
2019-01-10 | 3761-603-0935 | ND |
2019-01-10 | 3761-604-1020 | 13.0 ppb |
2019-01-10 | 3761-605-1045 | 1.90 ppb |
2019-01-10 | 3761-606-0855 | 10.5 ppb |
2019-01-10 | 3761-607-0830 | 3.40 ppb |
2019-01-10 | 3761-608-0915 | ND |
2019-01-15 | 3761-003-0955 | 15.6 ppb |
2019-01-15 | 3761-036-1025 | 8.50 ppb |
2019-01-15 | 3761-036-1115 | 15.5 ppb |
2019-02-08 | 3761-003-0920 | 14.3 ppb |
2019-02-08 | 3761-036-0815 | 15.1 ppb |
2019-02-08 | 3761-036-0840 | 14.8 ppb |
2019-02-26 | 3761-036-1330 | 21.5 ppb |
2019-04-15 | 3761-039-0915 | 13.8 ppb |
2019-04-16 | 3761-036-0950 | 16.7 ppb |
2019-04-16 | 3761-036-1600 | 12.6 ppb |
2019-04-16 | 3761-601-1130 | 13.6 ppb |
2019-04-16 | 3761-602-1145 | 12.8 ppb |
2019-04-16 | 3761-603-1105 | 12.3 ppb |
2019-04-16 | 3761-604-1205 | 13.6 ppb |
2019-04-16 | 3761-605-1230 | 1.10 ppb |
2019-04-16 | 3761-606-0935 | 4.80 ppb |
2019-04-16 | 3761-607-0835 | ND |
2019-04-16 | 3761-608-1050 | 8.70 ppb |
2019-05-14 | 3761-038-1010 | 2.20 ppb |
2019-05-21 | 3761-038-0845 | 17.7 ppb |
2019-05-30 | 3761-036-0830 | 13.3 ppb |
2019-05-30 | 3761-036-0935 | 17.0 ppb |
2019-06-03 | 3761-003-1110 | 3.00 ppb |
2019-06-03 | 3761-003-1135 | 15.2 ppb |
2019-06-03 | 3761-039-1000 | 17.2 ppb |
2019-06-03 | 3761-039-1045 | 15.4 ppb |
2019-07-03 | 3761-003-1215 | 13.0 ppb |
2019-07-03 | 3761-036-1000 | 13.0 ppb |
2019-07-03 | 3761-039-1100 | 13.0 ppb |
2019-07-10 | 3761-024-1220 | ND |
2019-07-11 | 3761-013-0855 | ND |
2019-07-11 | 3761-037-0935 | ND |
2019-07-23 | 3761-601-1145 | 11.6 ppb |
2019-07-23 | 3761-602-1210 | 10.6 ppb |
2019-07-23 | 3761-603-1120 | ND |
2019-07-23 | 3761-604-1220 | 8.80 ppb |
2019-07-23 | 3761-605-1250 | ND |
2019-07-23 | 3761-606-0945 | 4.60 ppb |
2019-07-23 | 3761-607-0845 | 12.4 ppb |
2019-07-23 | 3761-608-1005 | 2.40 ppb |
2019-07-25 | 3761-004-0930 | ND |
2019-09-26 | 3761-034-1220 | ND |
2019-10-09 | 3761-601-1025 | ND |
2019-10-09 | 3761-602-1050 | ND |
2019-10-09 | 3761-603-1010 | ND |
2019-10-09 | 3761-604-1105 | ND |
2019-10-09 | 3761-605-1120 | ND |
2019-10-09 | 3761-606-0940 | 5.90 ppb |
2019-10-09 | 3761-607-0910 | 12.2 ppb |
2019-10-09 | 3761-608-0955 | ND |