Dibromochloromethane
Cedarburg L & W Commission
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 | 0.451 ppb | 15 | 6 | ND - 3.70 ppb |
2015 | 0.438 ppb | 26 | 6 | ND - 4.90 ppb |
2016 | 0.432 ppb | 25 | 6 | ND - 5.60 ppb |
2017 | 0.235 ppb | 27 | 6 | ND - 2.80 ppb |
2018 | 0.532 ppb | 26 | 6 | ND - 6.90 ppb |
2019 | 0.412 ppb | 29 | 6 | ND - 6.60 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 |
---|---|---|
2014-03-04 | 772841 | ND |
2014-03-04 | 772844 | ND |
2014-03-04 | 772846 | 0.410 ppb |
2014-05-12 | 785091 | ND |
2014-05-12 | 785094 | ND |
2014-05-12 | 785096 | 0.500 ppb |
2014-08-19 | 811812 | ND |
2014-08-19 | 811810 | ND |
2014-08-19 | 811815 | ND |
2014-08-19 | 811816 | 0.600 ppb |
2014-08-19 | 811809 | 1.20 ppb |
2014-08-19 | 811808 | 3.70 ppb |
2014-12-01 | 833295 | ND |
2014-12-01 | 833292 | ND |
2014-12-01 | 833297 | 0.360 ppb |
2015-03-10 | 847452 | ND |
2015-03-10 | 847447 | ND |
2015-03-10 | 847449 | ND |
2015-03-10 | 847457 | ND |
2015-03-10 | 847450 | ND |
2015-03-10 | 847454 | 0.640 ppb |
2015-06-01 | 862719 | ND |
2015-06-01 | 862715 | ND |
2015-06-01 | 862716 | ND |
2015-06-01 | 862718 | ND |
2015-06-01 | 862717 | ND |
2015-06-01 | 862720 | 0.380 ppb |
2015-07-28 | 873580 | ND |
2015-07-28 | 873576 | ND |
2015-07-28 | 873577 | ND |
2015-07-28 | 873579 | ND |
2015-07-28 | 873578 | ND |
2015-07-28 | 873581 | 1.000 ppb |
2015-07-28 | 873583 | 3.50 ppb |
2015-07-28 | 873582 | 4.90 ppb |
2015-10-05 | 887228 | ND |
2015-10-05 | 887224 | ND |
2015-10-05 | 887225 | ND |
2015-10-05 | 887226 | ND |
2015-10-05 | 887227 | ND |
2015-10-05 | 887229 | 0.970 ppb |
2016-03-08 | 908901 | ND |
2016-03-08 | 908895 | ND |
2016-03-08 | 908897 | ND |
2016-03-08 | 908899 | ND |
2016-03-08 | 908898 | ND |
2016-03-08 | 908903 | 0.760 ppb |
2016-05-16 | 921446 | ND |
2016-05-16 | 921443 | ND |
2016-05-16 | 921445 | ND |
2016-05-16 | 921444 | ND |
2016-05-16 | 921447 | 0.970 ppb |
2016-08-15 | 939239 | ND |
2016-08-15 | 939235 | ND |
2016-08-15 | 939236 | ND |
2016-08-15 | 939237 | ND |
2016-08-15 | 939238 | ND |
2016-08-15 | 939240 | 0.310 ppb |
2016-08-15 | 939242 | 2.70 ppb |
2016-08-15 | 939241 | 5.60 ppb |
2016-10-17 | 953741 | ND |
2016-10-17 | 953737 | ND |
2016-10-17 | 953738 | ND |
2016-10-17 | 953739 | ND |
2016-10-17 | 953740 | ND |
2016-10-17 | 953742 | 0.470 ppb |
2017-01-16 | 969880 | ND |
2017-01-16 | 969906 | ND |
2017-01-16 | 969884 | ND |
2017-01-16 | 969904 | ND |
2017-01-16 | 969905 | ND |
2017-01-16 | 969887 | ND |
2017-01-16 | 969877 | 0.390 ppb |
2017-04-12 | 982952 | ND |
2017-04-12 | 982948 | ND |
2017-04-12 | 982949 | ND |
2017-04-12 | 982951 | ND |
2017-04-12 | 982950 | ND |
2017-04-12 | 982954 | 0.450 ppb |
2017-07-24 | 1006157 | ND |
2017-07-24 | 1006154 | ND |
2017-07-24 | 1006155 | ND |
2017-07-24 | 1006159 | ND |
2017-07-24 | 1006156 | ND |
2017-07-24 | 1006158 | 0.480 ppb |
2017-07-24 | 1006160 | 1.80 ppb |
2017-07-24 | 1006161 | 2.80 ppb |
2017-11-13 | 1029330 | ND |
2017-11-13 | 1029326 | ND |
2017-11-13 | 1029327 | ND |
2017-11-13 | 1029329 | ND |
2017-11-13 | 1029328 | ND |
2017-11-13 | 1029331 | 0.430 ppb |
2018-01-11 | 1036953 | ND |
2018-01-11 | 1036949 | ND |
2018-01-11 | 1036950 | ND |
2018-01-11 | 1036952 | ND |
2018-01-11 | 1036951 | ND |
2018-01-11 | 1036954 | 1.000 ppb |
2018-04-16 | 1050257 | ND |
2018-04-16 | 1050253 | ND |
2018-04-16 | 1050254 | ND |
2018-04-16 | 1050256 | ND |
2018-04-16 | 1050255 | ND |
2018-04-16 | 1050258 | 0.440 ppb |
2018-07-31 | 1070621 | ND |
2018-07-31 | 1070617 | ND |
2018-07-31 | 1070618 | ND |
2018-07-31 | 1070619 | ND |
2018-07-31 | 1070620 | ND |
2018-07-31 | 1070622 | 0.510 ppb |
2018-07-31 | 1070624 | 4.50 ppb |
2018-07-31 | 1070623 | 6.90 ppb |
2018-11-06 | 1091352 | ND |
2018-11-06 | 1091348 | ND |
2018-11-06 | 1091349 | ND |
2018-11-06 | 1091351 | ND |
2018-11-06 | 1091350 | ND |
2018-11-06 | 1091353 | 0.490 ppb |
2019-01-08 | 1100042 | ND |
2019-01-08 | 1100041 | ND |
2019-01-08 | 1100040 | ND |
2019-01-08 | 1100039 | ND |
2019-01-08 | 1100043 | ND |
2019-01-08 | 1100044 | 0.610 ppb |
2019-06-03 | 1124605 | ND |
2019-06-03 | 1124603 | ND |
2019-06-03 | 1124604 | ND |
2019-06-03 | 1124606 | 0.200 ppb |
2019-06-24 | 1130093 | ND |
2019-06-24 | 1130092 | ND |
2019-07-23 | 1136373 | ND |
2019-08-19 | 1141966 | ND |
2019-08-19 | 1141962 | ND |
2019-08-19 | 1141963 | ND |
2019-08-19 | 1141965 | ND |
2019-08-19 | 1141964 | ND |
2019-08-19 | 1141967 | 0.520 ppb |
2019-08-19 | 1141968 | 3.60 ppb |
2019-08-19 | 1141969 | 6.60 ppb |
2019-09-09 | 1146111 | ND |
2019-10-21 | 1156361 | ND |
2019-11-05 | 1159254 | ND |
2019-11-05 | 1159251 | ND |
2019-11-05 | 1159253 | ND |
2019-11-05 | 1159252 | ND |
2019-11-05 | 1159255 | 0.410 ppb |
2019-12-10 | 1165212 | ND |