Bromodichloromethane
City of Burlington
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 | 6.95 ppb | 43 | 43 | 4.00 ppb - 11.0 ppb |
2015 | 8.35 ppb | 33 | 33 | 4.99 ppb - 12.0 ppb |
2016 | 7.48 ppb | 37 | 36 | ND - 11.1 ppb |
2017 | 7.87 ppb | 32 | 32 | 4.08 ppb - 13.8 ppb |
2018 | 5.31 ppb | 32 | 32 | 2.00 ppb - 9.77 ppb |
2019 | 6.45 ppb | 32 | 32 | 2.60 ppb - 10.5 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 |
---|---|---|
2014-01-13 | 15859-14 | 4.00 ppb |
2014-01-13 | 37729_14-01502 | 6.00 ppb |
2014-02-19 | 37729_14-05082 | 4.00 ppb |
2014-02-19 | 37729_14-05084 | 7.00 ppb |
2014-02-19 | 37729_14-05085 | 5.00 ppb |
2014-02-19 | 37729_14-05086 | 7.00 ppb |
2014-02-19 | 37729_14-05087 | 6.00 ppb |
2014-02-19 | 37729_14-05089 | 7.00 ppb |
2014-02-19 | 37729_14-05090 | 7.00 ppb |
2014-02-19 | 37729_14-05091 | 4.00 ppb |
2014-04-09 | 17228-14 | 5.00 ppb |
2014-04-09 | 17229-14 | 4.00 ppb |
2014-04-10 | 17230-14 | 4.00 ppb |
2014-05-21 | 173145-14 | 7.00 ppb |
2014-05-21 | 37729_14-14604 | 6.00 ppb |
2014-05-21 | 37729_14-14606 | 7.00 ppb |
2014-05-21 | 37729_14-14607 | 6.00 ppb |
2014-05-21 | 37729_14-14608 | 10.00 ppb |
2014-05-21 | 37729_14-14609 | 10.00 ppb |
2014-05-21 | 37729_14-14611 | 8.00 ppb |
2014-05-21 | 37729_14-14612 | 10.00 ppb |
2014-05-21 | 37729_14-14613 | 11.0 ppb |
2014-06-02 | 173144-14 | 7.00 ppb |
2014-08-20 | 37729_14-25453 | 9.00 ppb |
2014-08-20 | 37729_14-25454 | 10.00 ppb |
2014-08-20 | 37729_14-25455 | 9.00 ppb |
2014-08-20 | 37729_14-25456 | 9.00 ppb |
2014-08-20 | 37729_14-25457 | 10.00 ppb |
2014-08-20 | 37729_14-25459 | 8.00 ppb |
2014-08-20 | 37729_14-25460 | 9.00 ppb |
2014-08-20 | 37729_14-25461 | 10.00 ppb |
2014-08-20 | 173773-14 | 9.00 ppb |
2014-08-20 | 173774-14 | 9.00 ppb |
2014-11-19 | 37729_14-35488 | 6.00 ppb |
2014-11-19 | 37729_14-35489 | 7.00 ppb |
2014-11-19 | 37729_14-35490 | 6.00 ppb |
2014-11-19 | 37729_14-35491 | 5.00 ppb |
2014-11-19 | 37729_14-35492 | 5.00 ppb |
2014-11-19 | 37729_14-35493 | 6.00 ppb |
2014-11-19 | 37729_14-35494 | 6.00 ppb |
2014-11-19 | 37729_14-35495 | 5.00 ppb |
2014-11-19 | 174412-14 | 4.00 ppb |
2014-11-19 | 174413-14 | 5.00 ppb |
2015-02-18 | 7.23 ppb | |
2015-02-18 | 7.43 ppb | |
2015-02-18 | 7.10 ppb | |
2015-02-18 | 7.01 ppb | |
2015-02-18 | 7.52 ppb | |
2015-02-18 | 6.93 ppb | |
2015-02-18 | 7.03 ppb | |
2015-02-18 | 4.99 ppb | |
2015-05-19 | 10.00 ppb | |
2015-05-21 | 11.0 ppb | |
2015-05-21 | 11.0 ppb | |
2015-05-21 | 12.0 ppb | |
2015-05-21 | 11.0 ppb | |
2015-05-21 | 10.00 ppb | |
2015-05-21 | 11.0 ppb | |
2015-05-21 | 11.0 ppb | |
2015-08-19 | 9.27 ppb | |
2015-08-19 | 10.00 ppb | |
2015-08-19 | 11.0 ppb | |
2015-08-19 | 10.00 ppb | |
2015-08-19 | 10.00 ppb | |
2015-08-19 | 10.00 ppb | |
2015-08-19 | 10.00 ppb | |
2015-08-19 | 11.0 ppb | |
2015-08-19 | 11.0 ppb | |
2015-11-18 | 6.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2015-11-18 | 5.00 ppb | |
2016-02-17 | 37729_16-05238 | 7.00 ppb |
2016-02-17 | 37729_16-05239 | 6.00 ppb |
2016-02-17 | 37729_16-05240 | 6.00 ppb |
2016-02-17 | 37729_16-05241 | 8.00 ppb |
2016-02-17 | 37729_16-05242 | 6.00 ppb |
2016-02-17 | 37729_16-05243 | 6.00 ppb |
2016-02-17 | 37729_16-05244 | 6.00 ppb |
2016-02-17 | 37729_16-05245 | 6.00 ppb |
2016-05-18 | 37729_16-15847 | 9.56 ppb |
2016-05-18 | 37729_16-15851 | 10.3 ppb |
2016-05-18 | 37729_16-15852 | 8.55 ppb |
2016-05-18 | 37729_16-15853 | 8.95 ppb |
2016-05-18 | 37729_16-15854 | 9.31 ppb |
2016-05-18 | 37729_16-15855 | 9.23 ppb |
2016-05-18 | 37729_16-15856 | 10.1 ppb |
2016-05-18 | 37729_16-15857 | 9.02 ppb |
2016-08-18 | 37729_16-28770 | 8.92 ppb |
2016-08-18 | 37729_16-28771 | 10.6 ppb |
2016-08-18 | 37729_16-28772 | 11.1 ppb |
2016-08-18 | 37729_16-28773 | 10.5 ppb |
2016-08-18 | 37729_16-28774 | 9.96 ppb |
2016-08-18 | 37729_16-28775 | 9.59 ppb |
2016-08-18 | 37729_16-28776 | 10.7 ppb |
2016-08-18 | 37729_16-28777 | 10.2 ppb |
2016-08-18 | 37729_16-28778 | 10.4 ppb |
2016-08-18 | 1140-16 | 9.00 ppb |
2016-08-22 | 37729_16-28769 | 10.7 ppb |
2016-11-17 | 37729_16-40614 | 5.06 ppb |
2016-11-17 | 37729_16-40615 | 3.71 ppb |
2016-11-17 | 37729_16-40616 | 4.99 ppb |
2016-11-17 | 37729_16-40617 | ND |
2016-11-17 | 37729_16-40618 | 4.36 ppb |
2016-11-17 | 37729_16-40619 | 3.90 ppb |
2016-11-17 | 37729_16-40620 | 4.48 ppb |
2016-11-17 | 37729_16-40621 | 4.94 ppb |
2016-11-17 | 37729_16-40622 | 3.91 ppb |
2016-11-17 | 37729_16-40623 | 3.87 ppb |
2017-02-15 | 37729_17-05559 | 8.30 ppb |
2017-02-15 | 37729_17-05560 | 8.42 ppb |
2017-02-15 | 37729_17-05561 | 8.25 ppb |
2017-02-15 | 37729_17-05562 | 9.24 ppb |
2017-02-15 | 37729_17-05563 | 8.36 ppb |
2017-02-15 | 37729_17-05564 | 8.79 ppb |
2017-02-15 | 37729_17-05565 | 8.52 ppb |
2017-02-15 | 37729_17-05566 | 7.62 ppb |
2017-05-17 | 37729_17-16603 | 9.05 ppb |
2017-05-17 | 37729_17-16604 | 5.36 ppb |
2017-05-17 | 37729_17-16605 | 5.82 ppb |
2017-05-17 | 37729_17-16606 | 7.89 ppb |
2017-05-17 | 37729_17-16607 | 8.21 ppb |
2017-05-17 | 37729_17-16608 | 7.54 ppb |
2017-05-17 | 37729_17-16609 | 7.65 ppb |
2017-05-17 | 37729_17-16610 | 8.49 ppb |
2017-08-16 | 37729_17-29513 | 8.29 ppb |
2017-08-16 | 37729_17-29514 | 10.5 ppb |
2017-08-16 | 37729_17-29515 | 5.63 ppb |
2017-08-16 | 37729_17-29516 | 8.96 ppb |
2017-08-16 | 37729_17-29517 | 9.61 ppb |
2017-08-16 | 37729_17-29518 | 10.8 ppb |
2017-08-16 | 37729_17-29519 | 11.8 ppb |
2017-08-16 | 37729_17-29520 | 13.8 ppb |
2017-11-15 | 37729_17-43441 | 4.46 ppb |
2017-11-15 | 37729_17-43442 | 6.22 ppb |
2017-11-15 | 37729_17-43443 | 6.44 ppb |
2017-11-15 | 37729_17-43444 | 5.16 ppb |
2017-11-15 | 37729_17-43445 | 5.65 ppb |
2017-11-15 | 37729_17-43446 | 6.97 ppb |
2017-11-15 | 37729_17-43447 | 6.14 ppb |
2017-11-15 | 37729_17-43448 | 4.08 ppb |
2018-02-20 | 37729_18-07245 | 8.33 ppb |
2018-02-21 | 37729_18-07243 | 6.52 ppb |
2018-02-21 | 37729_18-07246 | 7.68 ppb |
2018-02-21 | 37729_18-07247 | 4.09 ppb |
2018-02-21 | 37729_18-07248 | 7.44 ppb |
2018-02-21 | 37729_18-07249 | 9.77 ppb |
2018-02-21 | 37729_18-07250 | 7.30 ppb |
2018-02-21 | 37729_18-07251 | 3.68 ppb |
2018-05-30 | 37729_18-21553 | 4.74 ppb |
2018-05-30 | 37729_18-21554 | 6.17 ppb |
2018-05-30 | 37729_18-21555 | 6.47 ppb |
2018-05-30 | 37729_18-21556 | 4.03 ppb |
2018-05-30 | 37729_18-21557 | 4.03 ppb |
2018-05-30 | 37729_18-21558 | 4.78 ppb |
2018-05-30 | 37729_18-21559 | 5.29 ppb |
2018-05-30 | 37729_18-21560 | 4.60 ppb |
2018-08-15 | 37729_18-34328 | 4.32 ppb |
2018-08-15 | 37729_18-34329 | 6.26 ppb |
2018-08-15 | 37729_18-34330 | 4.95 ppb |
2018-08-15 | 37729_18-34331 | 4.95 ppb |
2018-08-15 | 37729_18-34332 | 6.40 ppb |
2018-08-15 | 37729_18-34333 | 6.53 ppb |
2018-08-15 | 37729_18-34334 | 6.60 ppb |
2018-08-15 | 37729_18-34335 | 5.05 ppb |
2018-11-14 | 37729_18-48169 | 4.00 ppb |
2018-11-14 | 37729_18-48170 | 5.00 ppb |
2018-11-14 | 37729_18-48171 | 3.00 ppb |
2018-11-14 | 37729_18-48172 | 2.00 ppb |
2018-11-14 | 37729_18-48173 | 4.00 ppb |
2018-11-14 | 37729_18-48174 | 5.00 ppb |
2018-11-14 | 37729_18-48175 | 5.00 ppb |
2018-11-14 | 37729_18-48176 | 2.00 ppb |
2019-02-19 | 37729_19-07385 | 4.89 ppb |
2019-02-19 | 37729_19-07386 | 4.54 ppb |
2019-02-19 | 37729_19-07387 | 3.64 ppb |
2019-02-19 | 37729_19-07388 | 3.68 ppb |
2019-02-19 | 37729_19-07389 | 3.99 ppb |
2019-02-19 | 37729_19-07390 | 4.47 ppb |
2019-02-19 | 37729_19-07391 | 4.43 ppb |
2019-02-19 | 37729_19-07392 | 2.60 ppb |
2019-05-15 | 37729_19-20130 | 10.1 ppb |
2019-05-15 | 37729_19-20131 | 6.91 ppb |
2019-05-15 | 37729_19-20132 | 10.1 ppb |
2019-05-15 | 37729_19-20133 | 10.5 ppb |
2019-05-15 | 37729_19-20134 | 5.36 ppb |
2019-05-15 | 37729_19-20135 | 7.55 ppb |
2019-05-15 | 37729_19-20136 | 6.20 ppb |
2019-05-15 | 37729_19-20137 | 10.1 ppb |
2019-08-21 | 37729_19-36220 | 9.35 ppb |
2019-08-21 | 37729_19-36221 | 8.25 ppb |
2019-08-21 | 37729_19-36222 | 7.86 ppb |
2019-08-21 | 37729_19-36223 | 8.87 ppb |
2019-08-21 | 37729_19-36224 | 8.67 ppb |
2019-08-21 | 37729_19-36225 | 8.52 ppb |
2019-08-21 | 37729_19-36226 | 8.95 ppb |
2019-08-21 | 37729_19-36227 | 8.95 ppb |
2019-11-20 | 37729_19-50098 | 4.51 ppb |
2019-11-20 | 37729_19-50102 | 5.00 ppb |
2019-11-20 | 37729_19-50103 | 3.99 ppb |
2019-11-20 | 37729_19-50104 | 3.62 ppb |
2019-11-20 | 37729_19-50105 | 5.85 ppb |
2019-11-20 | 37729_19-50106 | 5.86 ppb |
2019-11-20 | 37729_19-50107 | 5.61 ppb |
2019-11-20 | 37729_19-50108 | 3.34 ppb |