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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Kent Water Department

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

91

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.20 ppb3229ND - 2.37 ppb
20151.38 ppb16160.420 ppb - 3.83 ppb
20160.656 ppb1713ND - 1.83 ppb
20170.466 ppb1612ND - 1.52 ppb
20180.598 ppb169ND - 1.66 ppb
20190.560 ppb2212ND - 2.11 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-03-03027510.700 ppb
2014-03-03027542.25 ppb
2014-03-03027500.580 ppb
2014-03-03027572.37 ppb
2014-03-03027561.33 ppb
2014-03-03027532.18 ppb
2014-03-03027520.840 ppb
2014-03-03027551.74 ppb
2014-06-02079992.01 ppb
2014-06-02079981.86 ppb
2014-06-02079961.64 ppb
2014-06-02080001.25 ppb
2014-06-02079970.990 ppb
2014-06-02080030.830 ppb
2014-06-02080010.630 ppb
2014-06-02080020.660 ppb
2014-09-0814385ND
2014-09-08143820.670 ppb
2014-09-0814380ND
2014-09-08143811.67 ppb
2014-09-08143871.69 ppb
2014-09-08143840.500 ppb
2014-09-0814383ND
2014-09-08143860.650 ppb
2014-12-01190511.69 ppb
2014-12-01190491.21 ppb
2014-12-01190481.01 ppb
2014-12-01190452.30 ppb
2014-12-01190461.37 ppb
2014-12-01190470.750 ppb
2014-12-01190521.22 ppb
2014-12-01190501.82 ppb
2015-03-02027822.00 ppb
2015-03-02027811.22 ppb
2015-03-02027831.50 ppb
2015-03-02027802.32 ppb
2015-06-01083891.74 ppb
2015-06-01083861.49 ppb
2015-06-01083871.25 ppb
2015-06-01083883.83 ppb
2015-09-08146570.530 ppb
2015-09-08146611.52 ppb
2015-09-08146620.850 ppb
2015-09-08146590.500 ppb
2015-12-01192250.760 ppb
2015-12-01192241.74 ppb
2015-12-01192260.470 ppb
2015-12-01192230.420 ppb
2016-03-011.23 ppb
2016-03-011.14 ppb
2016-03-011.36 ppb
2016-03-010.530 ppb
2016-06-071.31 ppb
2016-06-07ND
2016-06-07ND
2016-06-07ND
2016-07-11ND
2016-09-060.800 ppb
2016-09-060.540 ppb
2016-09-060.610 ppb
2016-09-060.400 ppb
2016-12-060.410 ppb
2016-12-061.83 ppb
2016-12-060.400 ppb
2016-12-060.590 ppb
2017-03-07ND
2017-03-071.29 ppb
2017-03-070.310 ppb
2017-03-070.260 ppb
2017-06-06ND
2017-06-061.52 ppb
2017-06-06ND
2017-06-06ND
2017-09-050.450 ppb
2017-09-050.700 ppb
2017-09-050.370 ppb
2017-09-050.460 ppb
2017-12-050.390 ppb
2017-12-050.340 ppb
2017-12-051.07 ppb
2017-12-050.290 ppb
2018-03-061.14 ppb
2018-03-061.30 ppb
2018-03-061.29 ppb
2018-03-061.22 ppb
2018-06-05ND
2018-06-05ND
2018-06-051.08 ppb
2018-06-05ND
2018-09-04ND
2018-09-04ND
2018-09-040.610 ppb
2018-09-04ND
2018-12-040.730 ppb
2018-12-04ND
2018-12-041.66 ppb
2018-12-040.530 ppb
2019-03-050.720 ppb
2019-03-050.930 ppb
2019-03-051.30 ppb
2019-03-051.08 ppb
2019-06-04ND
2019-06-04ND
2019-06-041.16 ppb
2019-06-04ND
2019-07-02ND
2019-07-12ND
2019-07-12ND
2019-07-160.500 ppb
2019-07-160.500 ppb
2019-07-23ND
2019-09-030.720 ppb
2019-09-030.640 ppb
2019-09-032.11 ppb
2019-09-030.720 ppb
2019-12-03ND
2019-12-03ND
2019-12-031.94 ppb
2019-12-03ND