Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Carrollton

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

 

101

Samples

0

Samples exceeding legal limit (MCL)

53

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.23 ppb1713ND - 3.00 ppb
20150.377 ppb175ND - 1.70 ppb
20160.794 ppb178ND - 2.10 ppb
20170.816 ppb1710ND - 1.80 ppb
20180.766 ppb179ND - 2.10 ppb
20190.781 ppb168ND - 1.80 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
2014-02-04AI275051.20 ppb
2014-02-04AI275061.10 ppb
2014-02-04AI275071.000 ppb
2014-02-04AI27508ND
2014-02-10AI277430.950 ppb
2014-06-04AI422422.20 ppb
2014-06-04AI422432.00 ppb
2014-06-04AI422442.00 ppb
2014-06-04AI422451.80 ppb
2014-09-04AI524903.00 ppb
2014-09-04AI524911.60 ppb
2014-09-04AI524921.50 ppb
2014-09-04AI524931.50 ppb
2014-12-01AI60296ND
2014-12-01AI60297ND
2014-12-01AI602981.10 ppb
2014-12-01AI60299ND
2015-02-11AI648170.710 ppb
2015-03-03AI65828ND
2015-03-03AI65829ND
2015-03-03AI65830ND
2015-03-03AI65831ND
2015-06-02AI78498ND
2015-06-02AI78499ND
2015-06-02AI78500ND
2015-06-02AI78501ND
2015-09-01AI884291.40 ppb
2015-09-01AI884301.30 ppb
2015-09-01AI884311.70 ppb
2015-09-01AI884321.30 ppb
2015-12-03AJ01943ND
2015-12-03AJ01944ND
2015-12-03AJ01945ND
2015-12-03AJ01946ND
2016-01-27AJ05053ND
2016-03-01AJ07198ND
2016-03-01AJ07199ND
2016-03-01AJ07200ND
2016-03-01AJ07201ND
2016-06-01AJ130971.70 ppb
2016-06-01AJ130981.50 ppb
2016-06-01AJ130991.50 ppb
2016-06-01AJ131001.60 ppb
2016-09-07AJ259822.10 ppb
2016-09-07AJ259831.80 ppb
2016-09-07AJ259841.60 ppb
2016-09-07AJ259851.70 ppb
2016-12-05AJ36315ND
2016-12-05AJ36316ND
2016-12-05AJ36317ND
2016-12-05AJ36318ND
2017-03-06AJ47431ND
2017-03-06AJ47432ND
2017-03-06AJ47433ND
2017-03-06AJ47434ND
2017-04-04AJ525870.770 ppb
2017-06-05AJ565971.000 ppb
2017-06-05AJ56598ND
2017-06-05AJ56599ND
2017-06-05AJ56600ND
2017-09-04AJ671391.60 ppb
2017-09-04AJ671401.40 ppb
2017-09-04AJ671411.80 ppb
2017-09-04AJ671421.30 ppb
2017-12-04AJ748051.80 ppb
2017-12-04AJ748061.40 ppb
2017-12-04AJ748071.60 ppb
2017-12-04AJ748081.20 ppb
2018-01-29AJ780200.630 ppb
2018-03-05AJ84960ND
2018-03-05AJ84961ND
2018-03-05AJ84962ND
2018-03-05AJ84963ND
2018-06-05AJ907351.60 ppb
2018-06-05AJ907361.10 ppb
2018-06-05AJ907371.20 ppb
2018-06-05AJ90738ND
2018-09-04AJ997372.10 ppb
2018-09-04AJ997381.80 ppb
2018-09-04AJ997391.70 ppb
2018-09-04AJ997401.60 ppb
2018-11-27AK06715ND
2018-11-27AK06716ND
2018-11-27AK067171.30 ppb
2018-11-27AK06718ND
2019-03-05AK12561ND
2019-03-05AK12562ND
2019-03-05AK12563ND
2019-03-05AK12564ND
2019-06-03AK185891.80 ppb
2019-06-03AK185901.50 ppb
2019-06-03AK185911.60 ppb
2019-06-03AK185921.40 ppb
2019-09-03AK290711.80 ppb
2019-09-03AK290721.50 ppb
2019-09-03AK290731.60 ppb
2019-09-03AK290741.30 ppb
2019-12-04AK37613ND
2019-12-04AK37614ND
2019-12-04AK37615ND
2019-12-04AK37616ND