Dibromochloromethane
City of Durham
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 | 0.530 ppb | 48 | 29 | ND - 1.10 ppb |
2015 | 0.671 ppb | 48 | 26 | ND - 1.70 ppb |
2016 | 0.648 ppb | 48 | 24 | ND - 1.70 ppb |
2017 | 0.521 ppb | 48 | 2 | ND - 13.0 ppb |
2018 | 0.0521 ppb | 48 | 2 | ND - 1.50 ppb |
2019 | 0.240 ppb | 48 | 7 | ND - 3.20 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 |
---|---|---|
2014-02-11 | C400987-03 | ND |
2014-02-11 | C400987-04 | ND |
2014-02-11 | C400987-05 | ND |
2014-02-11 | C400987-06 | ND |
2014-02-11 | C400987-07 | ND |
2014-02-11 | C400987-08 | ND |
2014-02-11 | C400987-09 | ND |
2014-02-11 | C400987-10 | ND |
2014-02-11 | C400987-11 | ND |
2014-02-11 | C400987-12 | ND |
2014-02-11 | C400987-13 | ND |
2014-02-11 | C400987-14 | ND |
2014-05-13 | C405354-03 | 0.710 ppb |
2014-05-13 | C405354-04 | 0.860 ppb |
2014-05-13 | C405354-05 | 0.640 ppb |
2014-05-13 | C405354-06 | 0.670 ppb |
2014-05-13 | C405354-07 | 0.670 ppb |
2014-05-13 | C405354-08 | 0.650 ppb |
2014-05-13 | C405354-09 | 0.780 ppb |
2014-05-13 | C405354-10 | 0.590 ppb |
2014-05-13 | C405354-11 | 0.710 ppb |
2014-05-13 | C405354-12 | 0.720 ppb |
2014-05-13 | C405354-13 | 0.540 ppb |
2014-05-13 | C405354-14 | 0.640 ppb |
2014-08-12 | C409625-03 | 0.900 ppb |
2014-08-12 | C409625-04 | 1.10 ppb |
2014-08-12 | C409625-05 | 1.000 ppb |
2014-08-12 | C409625-06 | 0.990 ppb |
2014-08-12 | C409625-07 | 1.10 ppb |
2014-08-12 | C409625-08 | 1.10 ppb |
2014-08-12 | C409625-09 | 1.10 ppb |
2014-08-12 | C409625-10 | 0.870 ppb |
2014-08-12 | C409625-11 | 1.10 ppb |
2014-08-12 | C409625-12 | 0.970 ppb |
2014-08-12 | C409625-13 | 0.650 ppb |
2014-08-12 | C409625-14 | 1.000 ppb |
2014-11-11 | C414066-12 | 1.10 ppb |
2014-11-11 | C414066-13 | ND |
2014-11-11 | C414066-14 | 1.000 ppb |
2014-11-11 | C414066-03 | ND |
2014-11-11 | C414066-04 | 1.10 ppb |
2014-11-11 | C414066-05 | 1.10 ppb |
2014-11-11 | C414066-06 | ND |
2014-11-11 | C414066-07 | ND |
2014-11-11 | C414066-08 | ND |
2014-11-11 | C414066-09 | ND |
2014-11-11 | C414066-10 | ND |
2014-11-11 | C414066-11 | 1.10 ppb |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-02-10 | ND | |
2015-05-12 | 1.30 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.000 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.20 ppb | |
2015-05-12 | 1.000 ppb | |
2015-05-12 | 1.20 ppb | |
2015-08-10 | 1.20 ppb | |
2015-08-10 | 1.30 ppb | |
2015-08-10 | 1.30 ppb | |
2015-08-10 | 1.30 ppb | |
2015-08-10 | 1.30 ppb | |
2015-08-10 | 1.20 ppb | |
2015-08-10 | 1.30 ppb | |
2015-08-10 | 1.20 ppb | |
2015-08-10 | 1.20 ppb | |
2015-08-10 | 1.40 ppb | |
2015-08-10 | 1.10 ppb | |
2015-08-10 | 1.30 ppb | |
2015-11-11 | ND | |
2015-11-11 | 1.30 ppb | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | ND | |
2015-11-11 | 1.70 ppb | |
2016-02-09 | CZ01069-03 | ND |
2016-02-09 | CZ01069-04 | ND |
2016-02-09 | CZ01069-05 | ND |
2016-02-09 | CZ01069-06 | ND |
2016-02-09 | CZ01069-07 | ND |
2016-02-09 | CZ01069-08 | ND |
2016-02-09 | CZ01069-09 | ND |
2016-02-09 | CZ01069-10 | ND |
2016-02-09 | CZ01069-11 | ND |
2016-02-09 | CZ01069-12 | ND |
2016-02-09 | CZ01069-13 | ND |
2016-02-09 | CZ01069-14 | ND |
2016-05-11 | CZ05502-02 | 1.10 ppb |
2016-05-11 | CZ05502-03 | 1.30 ppb |
2016-05-11 | CZ05502-04 | 1.000 ppb |
2016-05-11 | CZ05502-05 | 1.10 ppb |
2016-05-11 | CZ05502-06 | 1.20 ppb |
2016-05-11 | CZ05502-07 | 1.000 ppb |
2016-05-11 | CZ05502-09 | 1.20 ppb |
2016-05-11 | CZ05502-10 | 1.30 ppb |
2016-05-11 | CZ05502-11 | 1.30 ppb |
2016-05-11 | CZ05502-12 | 1.20 ppb |
2016-05-11 | CZ05502-13 | 1.20 ppb |
2016-05-11 | CZ05502-14 | 1.20 ppb |
2016-08-09 | CZ10772-03 | 1.70 ppb |
2016-08-09 | CZ10772-04 | 1.50 ppb |
2016-08-09 | CZ10772-05 | 1.40 ppb |
2016-08-09 | CZ10772-06 | 1.40 ppb |
2016-08-09 | CZ10772-07 | 1.60 ppb |
2016-08-09 | CZ10772-08 | 1.60 ppb |
2016-08-09 | CZ10772-09 | 1.30 ppb |
2016-08-09 | CZ10772-10 | 1.10 ppb |
2016-08-09 | CZ10772-11 | 1.60 ppb |
2016-08-09 | CZ10772-12 | 1.40 ppb |
2016-08-09 | CZ10772-13 | 1.10 ppb |
2016-08-09 | CZ10772-14 | 1.30 ppb |
2016-11-08 | CZ16179-03 | ND |
2016-11-09 | CZ16179-04 | ND |
2016-11-09 | CZ16179-05 | ND |
2016-11-09 | CZ16179-06 | ND |
2016-11-09 | CZ16179-07 | ND |
2016-11-09 | CZ16179-08 | ND |
2016-11-09 | CZ16179-09 | ND |
2016-11-09 | CZ16179-10 | ND |
2016-11-09 | CZ16179-11 | ND |
2016-11-09 | CZ16179-12 | ND |
2016-11-09 | CZ16179-13 | ND |
2016-11-09 | CZ16179-14 | ND |
2017-02-15 | CA00946-03 | ND |
2017-02-15 | CA00946-04 | ND |
2017-02-15 | CA00946-05 | ND |
2017-02-15 | CA00946-06 | ND |
2017-02-15 | CA00946-07 | ND |
2017-02-15 | CA00946-08 | ND |
2017-02-15 | CA00946-09 | ND |
2017-02-15 | CA00946-10 | ND |
2017-02-15 | CA00946-11 | ND |
2017-02-15 | CA00946-12 | ND |
2017-02-15 | CA00946-13 | ND |
2017-02-15 | CA00946-14 | ND |
2017-05-08 | CA06171-03 | ND |
2017-05-08 | CA06171-04 | ND |
2017-05-08 | CA06171-05 | ND |
2017-05-08 | CA06171-06 | ND |
2017-05-08 | CA06171-07 | ND |
2017-05-08 | CA06171-08 | ND |
2017-05-08 | CA06171-09 | ND |
2017-05-08 | CA06171-10 | ND |
2017-05-08 | CA06171-11 | ND |
2017-05-08 | CA06171-12 | ND |
2017-05-08 | CA06171-13 | ND |
2017-05-08 | CA06171-14 | ND |
2017-08-08 | CA11368-03 | ND |
2017-08-08 | CA11368-04 | ND |
2017-08-08 | CA11368-05 | ND |
2017-08-08 | CA11368-06 | ND |
2017-08-08 | CA11368-07 | ND |
2017-08-08 | CA11368-08 | ND |
2017-08-08 | CA11368-09 | ND |
2017-08-08 | CA11368-10 | ND |
2017-08-08 | CA11368-11 | ND |
2017-08-08 | CA11368-12 | ND |
2017-08-08 | CA11368-13 | ND |
2017-08-08 | CA11368-14 | ND |
2017-11-14 | CA16981-03 | ND |
2017-11-14 | CA16981-04 | 13.0 ppb |
2017-11-14 | CA16981-05 | 12.0 ppb |
2017-11-14 | CA16981-06 | ND |
2017-11-14 | CA16981-07 | ND |
2017-11-14 | CA16981-08 | ND |
2017-11-14 | CA16981-09 | ND |
2017-11-14 | CA16981-10 | ND |
2017-11-14 | CA16981-11 | ND |
2017-11-14 | CA16981-12 | ND |
2017-11-14 | CA16981-13 | ND |
2017-11-14 | CA16981-14 | ND |
2018-02-13 | CB01007-03 | ND |
2018-02-13 | CB01007-04 | 1.000 ppb |
2018-02-13 | CB01007-05 | ND |
2018-02-13 | CB01007-06 | ND |
2018-02-13 | CB01007-07 | ND |
2018-02-13 | CB01007-08 | ND |
2018-02-13 | CB01007-09 | ND |
2018-02-13 | CB01007-10 | ND |
2018-02-13 | CB01007-11 | ND |
2018-02-13 | CB01007-12 | ND |
2018-02-13 | CB01007-13 | ND |
2018-02-13 | CB01007-14 | ND |
2018-05-08 | CB06320-03 | ND |
2018-05-08 | CB06320-04 | ND |
2018-05-08 | CB06320-05 | ND |
2018-05-08 | CB06320-06 | ND |
2018-05-08 | CB06320-07 | ND |
2018-05-08 | CB06320-08 | ND |
2018-05-08 | CB06320-09 | ND |
2018-05-08 | CB06320-10 | ND |
2018-05-08 | CB06320-11 | ND |
2018-05-08 | CB06320-12 | ND |
2018-05-08 | CB06320-13 | 1.50 ppb |
2018-05-08 | CB06320-14 | ND |
2018-08-14 | CB11155-03 | ND |
2018-08-14 | CB11155-04 | ND |
2018-08-14 | CB11155-05 | ND |
2018-08-14 | CB11155-06 | ND |
2018-08-14 | CB11155-07 | ND |
2018-08-14 | CB11155-08 | ND |
2018-08-14 | CB11155-09 | ND |
2018-08-14 | CB11155-10RE1 | ND |
2018-08-14 | CB11155-11RE1 | ND |
2018-08-14 | CB11155-12 | ND |
2018-08-14 | CB11155-13 | ND |
2018-08-14 | CB11155-14 | ND |
2018-11-12 | CB16648-03 | ND |
2018-11-12 | CB16648-04 | ND |
2018-11-12 | CB16648-05 | ND |
2018-11-12 | CB16648-06 | ND |
2018-11-12 | CB16648-07 | ND |
2018-11-12 | CB16648-08 | ND |
2018-11-12 | CB16648-09 | ND |
2018-11-12 | CB16648-10 | ND |
2018-11-12 | CB16648-11 | ND |
2018-11-12 | CB16648-12 | ND |
2018-11-12 | CB16648-13 | ND |
2018-11-12 | CB16648-14 | ND |
2019-02-12 | CC01716-03RE1 | ND |
2019-02-12 | CC01716-04 | 3.20 ppb |
2019-02-12 | CC01716-05 | 3.00 ppb |
2019-02-12 | CC01716-06 | ND |
2019-02-12 | CC01716-07 | ND |
2019-02-12 | CC01716-08RE1 | ND |
2019-02-12 | CC01716-09 | ND |
2019-02-12 | CC01716-10RE1 | ND |
2019-02-12 | CC01716-11 | ND |
2019-02-12 | CC01716-12 | ND |
2019-02-12 | CC01716-13 | ND |
2019-02-12 | CC01716-14 | ND |
2019-05-14 | CC06563-03 | ND |
2019-05-14 | CC06563-04 | ND |
2019-05-14 | CC06563-05 | ND |
2019-05-14 | CC06563-06 | ND |
2019-05-14 | CC06563-07 | ND |
2019-05-14 | CC06563-08 | ND |
2019-05-14 | CC06563-09 | ND |
2019-05-14 | CC06563-10 | ND |
2019-05-14 | CC06563-11 | ND |
2019-05-14 | CC06563-12 | ND |
2019-05-14 | CC06563-13 | ND |
2019-05-14 | CC06563-14 | ND |
2019-08-13 | CC12767-03 | ND |
2019-08-13 | CC12767-04 | ND |
2019-08-13 | CC12767-05 | ND |
2019-08-13 | CC12767-06 | ND |
2019-08-13 | CC12767-07 | ND |
2019-08-13 | CC12767-08 | ND |
2019-08-13 | CC12767-09 | ND |
2019-08-13 | CC12767-10 | ND |
2019-08-13 | CC12767-11 | ND |
2019-08-13 | CC12767-12 | ND |
2019-08-13 | CC12767-13 | ND |
2019-08-13 | CC12767-14 | ND |
2019-11-12 | CC18484-03 | 1.000 ppb |
2019-11-12 | CC18484-04 | ND |
2019-11-12 | CC18484-05 | 1.000 ppb |
2019-11-12 | CC18484-06 | ND |
2019-11-12 | CC18484-07 | ND |
2019-11-12 | CC18484-08 | ND |
2019-11-12 | CC18484-09 | 1.20 ppb |
2019-11-12 | CC18484-10 | 1.000 ppb |
2019-11-12 | CC18484-11 | 1.10 ppb |
2019-11-12 | CC18484-12 | ND |
2019-11-12 | CC18484-13 | ND |
2019-11-12 | CC18484-14 | ND |