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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Kent Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

119

Samples

0

Samples exceeding legal limit (MCL)

114

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.47 ppb32320.530 ppb - 7.00 ppb
20152.62 ppb16160.950 ppb - 6.15 ppb
20161.93 ppb1716ND - 3.49 ppb
20171.64 ppb16160.690 ppb - 3.03 ppb
20181.76 ppb16160.910 ppb - 2.54 ppb
20191.30 ppb2218ND - 3.04 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
2014-03-03027554.48 ppb
2014-03-03027543.89 ppb
2014-03-03027521.15 ppb
2014-03-03027511.12 ppb
2014-03-03027533.37 ppb
2014-03-03027574.30 ppb
2014-03-03027562.96 ppb
2014-03-03027501.02 ppb
2014-06-02080030.710 ppb
2014-06-02079982.25 ppb
2014-06-02079972.04 ppb
2014-06-02080001.82 ppb
2014-06-02080020.530 ppb
2014-06-02079993.05 ppb
2014-06-02079962.76 ppb
2014-06-02080010.730 ppb
2014-09-08143822.83 ppb
2014-09-08143802.10 ppb
2014-09-08143872.68 ppb
2014-09-08143842.89 ppb
2014-09-08143853.60 ppb
2014-09-08143813.14 ppb
2014-09-08143832.38 ppb
2014-09-08143864.56 ppb
2014-12-01190462.39 ppb
2014-12-01190491.06 ppb
2014-12-01190502.48 ppb
2014-12-01190480.960 ppb
2014-12-01190512.11 ppb
2014-12-01190521.97 ppb
2014-12-01190457.00 ppb
2014-12-01190470.600 ppb
2015-03-02027822.19 ppb
2015-03-02027812.09 ppb
2015-03-02027831.80 ppb
2015-03-02027803.55 ppb
2015-06-01083892.13 ppb
2015-06-01083862.94 ppb
2015-06-01083871.57 ppb
2015-06-01083886.15 ppb
2015-09-08146572.18 ppb
2015-09-08146613.33 ppb
2015-09-08146623.50 ppb
2015-09-08146592.26 ppb
2015-12-01192252.55 ppb
2015-12-01192242.87 ppb
2015-12-01192261.90 ppb
2015-12-01192230.950 ppb
2016-03-011.48 ppb
2016-03-012.18 ppb
2016-03-011.82 ppb
2016-03-012.02 ppb
2016-06-071.52 ppb
2016-06-071.47 ppb
2016-06-071.03 ppb
2016-06-072.74 ppb
2016-07-11ND
2016-09-063.49 ppb
2016-09-062.51 ppb
2016-09-061.63 ppb
2016-09-062.23 ppb
2016-12-061.76 ppb
2016-12-061.93 ppb
2016-12-062.78 ppb
2016-12-062.20 ppb
2017-03-071.29 ppb
2017-03-071.16 ppb
2017-03-070.690 ppb
2017-03-072.11 ppb
2017-06-061.20 ppb
2017-06-063.03 ppb
2017-06-060.910 ppb
2017-06-061.39 ppb
2017-09-052.86 ppb
2017-09-052.08 ppb
2017-09-051.50 ppb
2017-09-052.07 ppb
2017-12-051.44 ppb
2017-12-051.58 ppb
2017-12-052.00 ppb
2017-12-050.930 ppb
2018-03-062.39 ppb
2018-03-061.57 ppb
2018-03-062.32 ppb
2018-03-061.37 ppb
2018-06-050.910 ppb
2018-06-051.09 ppb
2018-06-052.02 ppb
2018-06-051.36 ppb
2018-09-041.41 ppb
2018-09-041.13 ppb
2018-09-042.46 ppb
2018-09-041.47 ppb
2018-12-042.03 ppb
2018-12-042.00 ppb
2018-12-042.54 ppb
2018-12-042.08 ppb
2019-03-052.03 ppb
2019-03-051.35 ppb
2019-03-052.07 ppb
2019-03-051.62 ppb
2019-06-040.560 ppb
2019-06-041.07 ppb
2019-06-041.77 ppb
2019-06-040.930 ppb
2019-07-02ND
2019-07-12ND
2019-07-12ND
2019-07-160.730 ppb
2019-07-160.730 ppb
2019-07-23ND
2019-09-031.53 ppb
2019-09-031.92 ppb
2019-09-032.72 ppb
2019-09-032.19 ppb
2019-12-031.02 ppb
2019-12-031.59 ppb
2019-12-033.04 ppb
2019-12-031.82 ppb