Bromodichloromethane
White Salmon City Of
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 | 0.704 ppb | 16 | 10 | ND - 1.90 ppb |
2015 | 0.978 ppb | 8 | 8 | 0.650 ppb - 1.40 ppb |
2016 | 1.03 ppb | 4 | 4 | 1.000 ppb - 1.10 ppb |
2017 | 1.05 ppb | 2 | 2 | 0.800 ppb - 1.30 ppb |
2018 | 0.975 ppb | 2 | 2 | 0.750 ppb - 1.20 ppb |
2019 | 1.02 ppb | 4 | 4 | 0.700 ppb - 1.50 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 |
---|---|---|
2014-02-06 | 10724 | 1.90 ppb |
2014-02-06 | 10725 | ND |
2014-02-06 | 10723 | ND |
2014-02-06 | 10726 | ND |
2014-05-06 | 80296 | 0.950 ppb |
2014-05-06 | 80293 | ND |
2014-05-06 | 80294 | ND |
2014-05-06 | 80295 | ND |
2014-08-12 | 90765 | 1.20 ppb |
2014-08-12 | 90764 | 0.520 ppb |
2014-08-12 | 90766 | 1.20 ppb |
2014-08-12 | 90767 | 1.10 ppb |
2014-12-12 | 21203 | 1.20 ppb |
2014-12-12 | 21202 | 1.30 ppb |
2014-12-12 | 21204 | 0.930 ppb |
2014-12-12 | 21201 | 0.960 ppb |
2015-02-17 | 20103 | 0.650 ppb |
2015-02-17 | 20102 | 0.830 ppb |
2015-02-17 | 20104 | 0.660 ppb |
2015-02-17 | 20101 | 1.10 ppb |
2015-05-08 | 13307 | 1.10 ppb |
2015-05-08 | 13311 | 0.980 ppb |
2015-05-08 | 13305 | 1.40 ppb |
2015-05-08 | 13309 | 1.10 ppb |
2016-02-05 | 1.000 ppb | |
2016-02-05 | 1.000 ppb | |
2016-02-05 | 1.000 ppb | |
2016-02-24 | 1.10 ppb | |
2017-03-07 | 1.30 ppb | |
2017-03-07 | 0.800 ppb | |
2018-02-06 | 1.20 ppb | |
2018-02-06 | 0.750 ppb | |
2019-02-05 | 1.50 ppb | |
2019-02-05 | 0.880 ppb | |
2019-02-05 | 1.000 ppb | |
2019-05-07 | 0.700 ppb |