Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Hudson Gaars Mill Water System

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

 

84

Samples

0

Samples exceeding legal limit (MCL)

54

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.826 ppb168ND - 2.34 ppb
20154.54 ppb881.22 ppb - 7.80 ppb
20161.65 ppb128ND - 4.24 ppb
20170.808 ppb1612ND - 1.30 ppb
20181.65 ppb1614ND - 2.60 ppb
20190.245 ppb164ND - 1.20 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
2014-03-171285884ND
2014-03-171285883ND
2014-03-171285884ND
2014-03-171285883ND
2014-06-2313124941.25 ppb
2014-06-2313124951.30 ppb
2014-06-2313124951.30 ppb
2014-06-2313124941.25 ppb
2014-09-1113340411.72 ppb
2014-09-1113340422.34 ppb
2014-09-1113340422.34 ppb
2014-09-1113340411.72 ppb
2014-12-171359343ND
2014-12-171359344ND
2014-12-171359344ND
2014-12-171359343ND
2015-03-2413818391.22 ppb
2015-03-2413818401.48 ppb
2015-03-2413818401.48 ppb
2015-03-2413818391.22 ppb
2015-06-1514032297.64 ppb
2015-06-1514032307.80 ppb
2015-06-1514032307.80 ppb
2015-06-1514032297.64 ppb
2016-01-181460411ND
2016-01-181460412ND
2016-01-181460411ND
2016-01-181460412ND
2016-04-1314828544.24 ppb
2016-04-1314828554.16 ppb
2016-04-1314828544.24 ppb
2016-04-1314828554.16 ppb
2016-10-1915350070.760 ppb
2016-10-1915350060.760 ppb
2016-10-1915350070.760 ppb
2016-10-1915350060.760 ppb
2017-03-27353032550050.890 ppb
2017-03-27353032550061.20 ppb
2017-03-27353032550061.20 ppb
2017-03-27353032550050.890 ppb
2017-06-2735321131002ND
2017-06-2735321131001ND
2017-06-2735321131001ND
2017-06-2735321131002ND
2017-09-20353372010051.20 ppb
2017-09-20353372010041.30 ppb
2017-09-20353372010041.30 ppb
2017-09-20353372010051.20 ppb
2017-12-18353644620020.970 ppb
2017-12-18353644620020.970 ppb
2017-12-18353644620010.900 ppb
2017-12-18353644620010.900 ppb
2018-03-12353799530011.70 ppb
2018-03-12353799530021.70 ppb
2018-03-12353799530011.70 ppb
2018-03-12353799530021.70 ppb
2018-06-26354008520012.40 ppb
2018-06-26354008520022.40 ppb
2018-06-26354008520012.40 ppb
2018-06-26354008520022.40 ppb
2018-09-1735418752001ND
2018-09-1735418752001ND
2018-09-17354187520022.60 ppb
2018-09-17354187520022.60 ppb
2018-12-05354355410011.20 ppb
2018-12-05354355410021.20 ppb
2018-12-05354355410011.20 ppb
2018-12-05354355410021.20 ppb
2019-03-1835456312002ND
2019-03-1835456312001ND
2019-03-1835456312001ND
2019-03-1835456312002ND
2019-06-1235475476002ND
2019-06-1235475476002ND
2019-06-12354754760011.20 ppb
2019-06-12354754760011.20 ppb
2019-09-1835499437002ND
2019-09-1835499437001ND
2019-09-1835499437001ND
2019-09-1835499437002ND
2019-12-18355203780010.760 ppb
2019-12-1835520378002ND
2019-12-18355203780010.760 ppb
2019-12-1835520378002ND