Bromodichloromethane
La Crosse Waterworks
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 | 0.730 ppb | 19 | 11 | ND - 4.50 ppb |
2015 | 0.904 ppb | 18 | 9 | ND - 7.51 ppb |
2016 | 0.685 ppb | 16 | 5 | ND - 6.24 ppb |
2017 | 0.950 ppb | 22 | 3 | ND - 11.3 ppb |
2018 | 0.859 ppb | 16 | 2 | ND - 8.54 ppb |
2019 | 0.419 ppb | 18 | 2 | ND - 4.97 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 |
---|---|---|
2014-02-25 | 4020695-01 | 0.261 ppb |
2014-03-06 | 4030179-02 | ND |
2014-03-10 | 4030238-02 | 0.0190 ppb |
2014-03-10 | 4030238-01 | 0.0200 ppb |
2014-04-22 | 4040806-16 | 0.393 ppb |
2014-06-11 | 4060407-02 | ND |
2014-06-11 | 4060407-04 | ND |
2014-06-11 | 4060407-01 | 0.489 ppb |
2014-06-11 | 4060407-03 | 0.553 ppb |
2014-06-16 | 4060519-04 | ND |
2014-06-16 | 4060519-02 | ND |
2014-06-24 | 4060840-01 | ND |
2014-08-11 | 4080309-01 | ND |
2014-08-13 | 4080455-02 | ND |
2014-08-13 | 4080455-03 | 0.192 ppb |
2014-08-13 | 4080455-05 | 4.29 ppb |
2014-08-13 | 4080455-04 | 4.50 ppb |
2014-10-08 | 4100322-07 | 0.391 ppb |
2014-12-30 | 4120949-01 | 2.77 ppb |
2015-02-11 | 5020318-02 | ND |
2015-02-11 | 5020318-04 | ND |
2015-02-11 | 5020318-03 | 0.755 ppb |
2015-03-09 | 5030238-01 | ND |
2015-03-30 | 5030975-01 | ND |
2015-04-01 | 5040003-01 | ND |
2015-05-06 | 5050178-03 | ND |
2015-05-06 | 5050178-04 | 0.796 ppb |
2015-05-06 | 5050178-02 | 1.04 ppb |
2015-06-16 | 5060564-04 | ND |
2015-08-13 | 5080540-04 | ND |
2015-08-13 | 5080540-02 | 0.138 ppb |
2015-08-13 | 5080540-03 | 0.258 ppb |
2015-08-13 | 5080540-06 | 5.67 ppb |
2015-08-13 | 5080540-05 | 7.51 ppb |
2015-10-14 | 5100472-04 | ND |
2015-10-14 | 5100472-02 | 0.0320 ppb |
2015-10-14 | 5100472-03 | 0.0810 ppb |
2016-03-10 | 6030418-02 | ND |
2016-03-10 | 6030418-06 | ND |
2016-03-10 | 6030418-05 | ND |
2016-03-10 | 6030418-01 | 0.0650 ppb |
2016-03-10 | 6030418-03 | 0.130 ppb |
2016-04-14 | 6040500-01 | ND |
2016-05-18 | 6050700-03 | ND |
2016-05-18 | 6050700-04 | ND |
2016-05-18 | 6050700-05 | ND |
2016-08-10 | 6080456-03 | ND |
2016-08-10 | 6080456-07 | ND |
2016-08-10 | 6080457-01 | 2.93 ppb |
2016-08-10 | 6080457-02 | 6.24 ppb |
2016-11-03 | 6110193-08 | ND |
2016-11-03 | 6110193-03 | ND |
2016-11-03 | 6110193-07 | 1.59 ppb |
2017-03-08 | 17C0300-01 | ND |
2017-03-15 | 17C0533-01 | ND |
2017-03-16 | 17C0605-01 | ND |
2017-06-14 | 17F0575-03 | ND |
2017-06-14 | 17F0575-04 | ND |
2017-06-14 | 17F0575-08 | ND |
2017-06-14 | 17F0575-02 | ND |
2017-06-14 | 17F0575-07 | ND |
2017-06-14 | 17F0575-05 | ND |
2017-06-14 | 17F0575-06 | ND |
2017-06-15 | 17F0598-01 | ND |
2017-06-21 | 17F0857-01 | ND |
2017-06-21 | 17F0857-03 | ND |
2017-08-09 | 17H0448-02 | ND |
2017-08-09 | 17H0448-03 | ND |
2017-08-09 | 17H0448-04 | ND |
2017-08-09 | 17H0448-05 | ND |
2017-08-09 | 17H0448-08 | 8.46 ppb |
2017-08-09 | 17H0448-07 | 11.3 ppb |
2017-10-23 | 17J0751-02 | ND |
2017-10-23 | 17J0751-03 | ND |
2017-10-23 | 17J0751-04 | 1.15 ppb |
2018-02-28 | 18B0840-03 | ND |
2018-02-28 | 18B0840-04 | ND |
2018-02-28 | 18B0840-06 | ND |
2018-05-02 | 18E0103-03 | ND |
2018-05-02 | 18E0103-04 | ND |
2018-05-02 | 18E0103-05 | ND |
2018-05-02 | 18E0103-06 | ND |
2018-05-03 | 18E0132-02 | ND |
2018-08-01 | 18H0053-02 | ND |
2018-08-01 | 18H0053-03 | ND |
2018-08-01 | 18H0053-04 | ND |
2018-08-01 | 18H0053-06 | 5.21 ppb |
2018-08-01 | 18H0053-07 | 8.54 ppb |
2018-10-01 | 18J0009-02 | ND |
2018-10-01 | 18J0009-03 | ND |
2018-10-01 | 18J0009-04 | ND |
2019-03-04 | 19C0052-01 | ND |
2019-03-04 | 19C0052-03 | ND |
2019-03-05 | 19C0107-01 | ND |
2019-03-18 | 19C0513-02 | ND |
2019-06-06 | 19F0212-01 | ND |
2019-06-06 | 19F0212-02 | ND |
2019-06-06 | 19F0212-03 | ND |
2019-06-06 | 19F0212-05 | ND |
2019-07-22 | 19G0736-01 | ND |
2019-07-22 | 19G0736-03 | ND |
2019-07-22 | 19G0736-04 | ND |
2019-07-22 | 19G0736-06 | ND |
2019-07-22 | 19G0736-07 | 2.57 ppb |
2019-07-22 | 19G0736-08 | 4.97 ppb |
2019-10-02 | 19J0142-01 | ND |
2019-10-02 | 19J0142-02 | ND |
2019-10-02 | 19J0142-03 | ND |
2019-10-02 | 19J0142-04 | ND |