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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Gibsonville, Town of

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

 

53

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.125 ppb81ND - 1.000 ppb
20150.590 ppb104ND - 2.00 ppb
20160.813 ppb84ND - 2.10 ppb
2017ND100ND
20180.463 ppb83ND - 1.40 ppb
20190.411 ppb92ND - 1.90 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
2014-02-1992190163004ND
2014-02-1992190163001ND
2014-05-2192202262003DIS1.000 ppb
2014-05-2192202262002DISND
2014-08-1492213542001TTHND
2014-08-1492213542003TTHND
2014-11-1292225262003TTHND
2014-11-1292225262011TTHND
2015-02-111.000 ppb
2015-02-111.000 ppb
2015-05-13ND
2015-05-13ND
2015-08-122.00 ppb
2015-08-121.90 ppb
2015-11-11ND
2015-11-11ND
2015-11-11ND
2015-11-11ND
2016-02-1092286016007TTHND
2016-02-1092286016009TTHND
2016-05-1892298090001TTH1.20 ppb
2016-05-1892298090002TTH1.20 ppb
2016-08-1792309173005TTH2.00 ppb
2016-08-1792309173008TTH2.10 ppb
2016-11-0992319067001TTHND
2016-11-0992319067004TTHND
2017-02-0892329204001TTHND
2017-02-0892329204002TTHND
2017-05-1792340918001TTHND
2017-05-1792340918002TTHND
2017-05-1792340918003DISND
2017-08-1692351729001TTHND
2017-08-1692351729002TTHND
2017-08-1692351729003DISND
2017-11-1592363488001TTHND
2017-11-1592363488002TTHND
2018-02-2192374289004TTH ND
2018-02-2192374289001TTH ND
2018-05-2392385794001TTH 1.10 ppb
2018-05-2392385794004TTH ND
2018-08-1592395854001TTH 1.40 ppb
2018-08-1592395854002TTH 1.20 ppb
2018-11-1492407304001TTH ND
2018-11-1492407304004TTH ND
2019-02-2092418437001_3770ND
2019-02-2092418437002_3770ND
2019-02-2092418437003_3770ND
2019-05-1592429315001_3770ND
2019-05-1592429315002_3770ND
2019-08-2192442289001_37701.90 ppb
2019-08-2192442289002_37701.80 ppb
2019-11-2092454563004_3770ND
2019-11-2092454563001_3770ND