Bromodichloromethane
Medford Twp Department of Muni
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 |
---|---|---|---|---|
2014 | 0.467 ppb | 12 | 6 | ND - 2.50 ppb |
2015 | 0.410 ppb | 12 | 12 | 0.220 ppb - 0.740 ppb |
2016 | 1.81 ppb | 20 | 14 | ND - 4.70 ppb |
2017 | 0.207 ppb | 15 | 1 | ND - 3.10 ppb |
2018 | 1.56 ppb | 16 | 9 | ND - 7.30 ppb |
2019 | 0.919 ppb | 16 | 8 | ND - 7.00 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 |
---|---|---|
2014-03-31 | L5006573-4 | ND |
2014-03-31 | L5006573-2 | ND |
2014-03-31 | L5006573-3 | ND |
2014-03-31 | L5006573-1 | ND |
2014-06-30 | L5057738-1 | 2.50 ppb |
2014-06-30 | L5057738-3 | ND |
2014-06-30 | L5057738-4 | ND |
2014-06-30 | L5057738-2 | 2.08 ppb |
2014-12-30 | L5322042-1 | 0.250 ppb |
2014-12-30 | L5322042-2 | 0.270 ppb |
2014-12-30 | L5322042-3 | 0.250 ppb |
2014-12-30 | L5322042-5 | 0.250 ppb |
2015-03-30 | L5526947-2 | 0.300 ppb |
2015-03-30 | L5526947-3 | 0.320 ppb |
2015-03-30 | L5526947-4 | 0.220 ppb |
2015-03-30 | L5526947-1 | 0.300 ppb |
2015-09-30 | L5771399-2 | 0.270 ppb |
2015-09-30 | L5771399-3 | 0.270 ppb |
2015-09-30 | L5771399-4 | 0.240 ppb |
2015-09-30 | L5771399-1 | 0.260 ppb |
2015-12-23 | L5915487-1 | 0.670 ppb |
2015-12-23 | L5915487-3 | 0.650 ppb |
2015-12-23 | L5915487-4 | 0.680 ppb |
2015-12-23 | L5915487-2 | 0.740 ppb |
2016-04-01 | L6148425-2 | 4.10 ppb |
2016-04-01 | L6148425-8 | 4.30 ppb |
2016-04-01 | L6148425-6 | 4.40 ppb |
2016-04-01 | L6148425-7 | 4.20 ppb |
2016-04-01 | L6148425-5 | 4.40 ppb |
2016-04-01 | L6148425-1 | 4.70 ppb |
2016-04-01 | L6148425-3 | 4.00 ppb |
2016-04-01 | L6148425-4 | 4.40 ppb |
2016-06-30 | L6255094-4 | ND |
2016-06-30 | L6255094-3 | ND |
2016-06-30 | L6255094-2 | ND |
2016-06-30 | L6255094-1 | ND |
2016-09-29 | L6426528-4 | 0.200 ppb |
2016-09-29 | L6426528-3 | 0.200 ppb |
2016-09-29 | L6426528-2 | 0.200 ppb |
2016-09-29 | L6426528-1 | 0.200 ppb |
2016-12-02 | L6552627-3 | ND |
2016-12-02 | L6552627-4 | ND |
2016-12-02 | L6552627-1 | 0.400 ppb |
2016-12-02 | L6552627-2 | 0.400 ppb |
2017-03-09 | L6681644-3 | ND |
2017-03-09 | L6681644-4 | ND |
2017-03-09 | L6681644-2 | 3.10 ppb |
2017-06-01 | L6808125-3 | ND |
2017-06-01 | L6808125-4 | ND |
2017-06-01 | L6808125-1 | ND |
2017-06-01 | L6808125-2 | ND |
2017-09-21 | L6938556-1 | ND |
2017-09-21 | L6938556-4 | ND |
2017-09-21 | L6938556-2 | ND |
2017-09-21 | L6938556-3 | ND |
2017-12-28 | L6971791-2 | ND |
2017-12-28 | L6971791-4 | ND |
2017-12-28 | L6971791-3 | ND |
2017-12-28 | L6971791-1 | ND |
2018-03-16 | L7000753-2 | 2.10 ppb |
2018-03-16 | L7000753-3 | 2.40 ppb |
2018-03-16 | L7000753-4 | 2.00 ppb |
2018-03-16 | L7000753-1 | 2.40 ppb |
2018-06-29 | L7046321-4 | ND |
2018-06-29 | L7046321-2 | ND |
2018-06-29 | L7046321-5 | ND |
2018-06-29 | L7046321-3 | 0.600 ppb |
2018-09-28 | L7062941-1 | 7.30 ppb |
2018-09-28 | L7062941-2 | 6.80 ppb |
2018-09-28 | L7062941-4 | 0.700 ppb |
2018-09-28 | L7062941-3 | 0.600 ppb |
2018-12-28 | L7085037-3 | ND |
2018-12-28 | L7085037-1 | ND |
2018-12-28 | L7085037-2 | ND |
2018-12-28 | L7085037-4 | ND |
2019-02-15 | L7104480-2 | ND |
2019-02-15 | L7104480-1 | ND |
2019-02-15 | L7104480-3 | ND |
2019-02-15 | L7104480-4 | ND |
2019-05-31 | L7124752-1 | 0.900 ppb |
2019-05-31 | L7124752-2 | 0.900 ppb |
2019-05-31 | L7124752-3 | 0.900 ppb |
2019-05-31 | L7124752-4 | 0.900 ppb |
2019-09-27 | L7153850-1 | ND |
2019-09-27 | L7153850-2 | ND |
2019-09-27 | L7153850-3 | ND |
2019-09-27 | L7153850-4 | ND |
2019-12-27 | L7173432-1 | 7.00 ppb |
2019-12-27 | L7173432-4 | 0.500 ppb |
2019-12-27 | L7173432-2 | 3.40 ppb |
2019-12-27 | L7173432-3 | 0.200 ppb |