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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

United Water Westchester Rate District 2

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

 

176

Samples

0

Samples exceeding legal limit (MCL)

152

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.51 ppb3224ND - 4.20 ppb
20151.55 ppb16160.800 ppb - 2.60 ppb
20161.58 ppb3228ND - 3.10 ppb
20171.56 ppb3228ND - 2.98 ppb
20181.82 ppb3228ND - 3.51 ppb
20191.96 ppb3228ND - 5.18 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
2014-02-064020132-05-DBP2ND
2014-02-064020132-06-DBP2ND
2014-02-064020132-02-DBP2ND
2014-02-064020132-01-DBP2ND
2014-02-064020132-07-DBP2ND
2014-02-064020132-03-DBP2ND
2014-02-064020132-04-DBP2ND
2014-02-114020132-08-DBP2ND
2014-05-074050325-04-DBP21.02 ppb
2014-05-074050325-03-DBP20.740 ppb
2014-05-074050325-01-DBP21.54 ppb
2014-05-094050325-05-DBP21.24 ppb
2014-05-094050325-06-DBP21.67 ppb
2014-05-094050325-02-DBP21.75 ppb
2014-05-094050325-08-DBP20.870 ppb
2014-05-134050325-07-DBP20.900 ppb
2014-08-124080428-07-DBP22.30 ppb
2014-08-124080428-04-DBP22.90 ppb
2014-08-124080428-01-DBP22.80 ppb
2014-08-124080428-02-DBP23.60 ppb
2014-08-124080428-06-DBP23.20 ppb
2014-08-124080428-08-DBP22.60 ppb
2014-08-124080428-05-DBP24.20 ppb
2014-08-124080428-03-DBP23.10 ppb
2014-11-054110212-03-DBP21.90 ppb
2014-11-054110212-04-DBP22.10 ppb
2014-11-054110212-08-DBP20.800 ppb
2014-11-054110212-02-DBP21.80 ppb
2014-11-054110212-06-DBP22.10 ppb
2014-11-054110212-01-DBP21.90 ppb
2014-11-054110212-07-DBP20.900 ppb
2014-11-054110212-05-DBP22.30 ppb
2015-02-102054609008-DBP20.800 ppb
2015-02-102054609007-DBP20.900 ppb
2015-02-102054609002-DBP21.60 ppb
2015-02-102054609004-DBP21.50 ppb
2015-02-102054609005-DBP21.80 ppb
2015-02-102054609006-DBP21.60 ppb
2015-02-102054609001-DBP21.60 ppb
2015-02-102054609003-DBP21.90 ppb
2015-05-062069808003-DBP21.30 ppb
2015-05-062069808007-DBP22.60 ppb
2015-05-062069808006-DBP21.60 ppb
2015-05-062069808005-DBP21.10 ppb
2015-05-062069808004-DBP21.60 ppb
2015-05-062069808008-DBP21.50 ppb
2015-05-062069808001-DBP21.80 ppb
2015-05-062069808002-DBP21.60 ppb
2016-02-096020308-01-DBP21.74 ppb
2016-02-096020308-06-DBP21.58 ppb
2016-02-096020308-08-DBP20.432 ppb
2016-02-096020308-03-DBP21.01 ppb
2016-02-096020308-02-DBP21.32 ppb
2016-02-096020308-04-DBP21.19 ppb
2016-02-096020308-05-DBP21.78 ppb
2016-02-096020308-07-DBP21.44 ppb
2016-05-102143084002-DBP22.00 ppb
2016-05-102143084004-DBP21.90 ppb
2016-05-102143084007-DBP22.10 ppb
2016-05-102143084008-DBP20.870 ppb
2016-05-102143084001-DBP22.30 ppb
2016-05-102143084005-DBP21.90 ppb
2016-05-102143084003-DBP21.000 ppb
2016-05-102143084006-DBP22.50 ppb
2016-08-092166272006-DBP22.20 ppb
2016-08-092166272005-DBP23.10 ppb
2016-08-092166272007-DBP22.10 ppb
2016-08-092166272008-DBP21.90 ppb
2016-08-09216272001-DBP21.90 ppb
2016-08-092166272003-DBP21.70 ppb
2016-08-092166272002-DBP22.70 ppb
2016-08-092166272004-DBP22.40 ppb
2016-11-152189965003-DBP21.20 ppb
2016-11-152189965001-DBP22.30 ppb
2016-11-152189965008-DBP2ND
2016-11-152189965007-DBP2ND
2016-11-152189965005-DBP21.80 ppb
2016-11-152189965004-DBP2ND
2016-11-152189965002-DBP22.20 ppb
2016-11-152189965006-DBP2ND
2017-02-147020435-02-DBP21.47 ppb
2017-02-147020435-08-DBP2ND
2017-02-147020435-06-DBP2ND
2017-02-147020435-07-DBP21.39 ppb
2017-02-147020435-03-DBP21.40 ppb
2017-02-147020435-04-DBP21.43 ppb
2017-02-147020435-05-DBP21.59 ppb
2017-02-147020435-01-DBP21.87 ppb
2017-05-097050390-04-DBP22.07 ppb
2017-05-097050390-05-DBP21.82 ppb
2017-05-097050390-02-DBP21.72 ppb
2017-05-097050390-08-DBP21.64 ppb
2017-05-097050390-07-DBP21.78 ppb
2017-05-097050390-06-DBP21.82 ppb
2017-05-097050390-01-DBP22.12 ppb
2017-05-097050390-03-DBP21.80 ppb
2017-08-157080617-06-DBP22.47 ppb
2017-08-157080617-08-DBP21.64 ppb
2017-08-157080617-01-DBP22.06 ppb
2017-08-157080617-04-DBP21.41 ppb
2017-08-157080617-05-DBP21.61 ppb
2017-08-157080617-02-DBP20.368 ppb
2017-08-157080617-07-DBP21.67 ppb
2017-08-157080617-03-DBP22.00 ppb
2017-11-147110564-05DBP22.98 ppb
2017-11-147110564-07DBP21.87 ppb
2017-11-147110564-01DBP21.31 ppb
2017-11-147110564-02DBP21.27 ppb
2017-11-147110564-03DBP22.34 ppb
2017-11-147110564-08DBP2ND
2017-11-147110564-04DBP22.88 ppb
2017-11-147110564-06DBP2ND
2018-02-138020455-05-DBP21.55 ppb
2018-02-138020455-03-DBP20.623 ppb
2018-02-138020455-04-DBP20.330 ppb
2018-02-138020455-07-DBP21.58 ppb
2018-02-138020455-06-DBP2ND
2018-02-138020455-08-DBP21.53 ppb
2018-02-138020455-01-DBP21.76 ppb
2018-02-138020455-02-DBP21.84 ppb
2018-05-158050721-06-DBP2ND
2018-05-158050721-05-DBP22.69 ppb
2018-05-158050721-07-DBP22.56 ppb
2018-05-158050721-02-DBP22.81 ppb
2018-05-158050721-08-DBP20.376 ppb
2018-05-158050721-03-DBP22.80 ppb
2018-05-158050721-04-DBP23.17 ppb
2018-05-158050721-01-DBP22.98 ppb
2018-08-148080664-07-DBP22.74 ppb
2018-08-148080664-06-DBP22.99 ppb
2018-08-148080664-01-DBP22.73 ppb
2018-08-148080664-03-DBP21.72 ppb
2018-08-148080664-05-DBP22.11 ppb
2018-08-148080664-08-DBP2ND
2018-08-148080664-02-DBP22.46 ppb
2018-08-148080664-04-DBP22.24 ppb
2018-11-088110332-04-DBP23.51 ppb
2018-11-088110332-05-DBP22.54 ppb
2018-11-088110332-06-DBP2ND
2018-11-088110332-07-DBP20.640 ppb
2018-11-088110332-01-DBP22.69 ppb
2018-11-088110332-08-DBP20.282 ppb
2018-11-088110332-02-DBP22.55 ppb
2018-11-088110332-03-DBP22.59 ppb
2019-02-149020596-07-DBP2ND
2019-02-149020596-04-DBP21.78 ppb
2019-02-149020596-06-DBP2ND
2019-02-149020596-05-DBP21.73 ppb
2019-02-149020596-02-DBP21.68 ppb
2019-02-149020596-01-DBP22.05 ppb
2019-02-149020596-08-DBP2ND
2019-02-149020596-03-DBP21.65 ppb
2019-05-149050680-08-DBP2ND
2019-05-149050680-03-DBP21.62 ppb
2019-05-149050680-05-DBP22.04 ppb
2019-05-149050680-01-DBP22.13 ppb
2019-05-149050680-DBP22.21 ppb
2019-05-149050680-04-DBP22.10 ppb
2019-05-149050680-06-DBP22.23 ppb
2019-05-149050680-07-DBP22.09 ppb
2019-08-149080764-01-DBP25.18 ppb
2019-08-149080764-05-DBP23.81 ppb
2019-08-149080764-06-DBP22.59 ppb
2019-08-149080764-03-DBP24.47 ppb
2019-08-149080764-07-DBP23.14 ppb
2019-08-149080764-04-DBP23.06 ppb
2019-08-149080764-08-DBP23.01 ppb
2019-08-149080764-02-DBP23.35 ppb
2019-11-139110583-03-DBP22.04 ppb
2019-11-139110583-01-DBP21.83 ppb
2019-11-139110583-02-DBP21.47 ppb
2019-11-139110583-07-DBP20.802 ppb
2019-11-139110583-06-DBP21.45 ppb
2019-11-139110583-08-DBP20.294 ppb
2019-11-139110583-04-DBP21.61 ppb
2019-11-139110583-05-DBP21.41 ppb