Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromochloromethane

Juneau

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND170ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-06DB*201401110041ND
2014-01-06DB*201401110042ND
2014-01-06DB*201401110043ND
2014-01-06DB*201401110039ND
2014-04-01DB*201404030460ND
2014-04-01DB*201404030462ND
2014-04-01DB*201404030463ND
2014-04-01DB*201404030464ND
2014-07-07T2*3059548ND
2014-07-07T2*3059547ND
2014-07-07T2*3059546ND
2014-07-07T2*3059545ND
2014-10-06DT*3120402ND
2014-10-06DT*3120400ND
2014-10-06DT*3120398ND
2014-10-06DT*3120396ND
2015-01-12DT*3172560ND
2015-01-12DT*3172561ND
2015-01-12DT*3172562ND
2015-01-12DT*3172563ND
2015-04-06DT*3219947ND
2015-04-06DT*3219949ND
2015-04-06DT*3219945ND
2015-04-06DT*3219943ND
2015-05-18VO*3247020ND
2015-07-06DT*3275774ND
2015-07-06DT*3275773ND
2015-07-06DT*3275776ND
2015-07-06DT*3275775ND
2015-10-05DT*3336173ND
2015-10-05DT*3336174ND
2015-10-05DT*3336175ND
2015-10-05DT*3336176ND
2016-01-04DT*3382673ND
2016-01-04DT*3382674ND
2016-01-04DT*3382675ND
2016-01-04DT*3382676ND
2016-04-04DT*3426423ND
2016-04-04DT*3426422ND
2016-04-04DT*3426421ND
2016-04-04DT*3426420ND
2016-07-18DT*3499732ND
2016-07-18DT*3499733ND
2016-07-18DT*3499734ND
2016-07-18DT*3499735ND
2016-10-03DB*3559112ND
2016-10-03DB*3559111ND
2016-10-03DB*3559110ND
2016-10-03DB*3559113ND
2017-01-09DT*3619069ND
2017-01-09DT*3619070ND
2017-01-09DT*3619071ND
2017-01-09DT*3619072ND
2017-04-03DT*3667842ND
2017-04-03DT*3667843ND
2017-04-03DT*3667844ND
2017-04-03DT*3667845ND
2017-07-03DT*3726832ND
2017-07-03DT*3726835ND
2017-07-03DT*3726834ND
2017-07-03DT*3726833ND
2017-10-02DT*3791853ND
2017-10-02DT*3791854ND
2017-10-02DT*3791855ND
2017-10-02DT*3791856ND
2018-01-08DT*3851257ND
2018-01-08DT*3851256ND
2018-01-08DT*3851255ND
2018-01-08DT*3851254ND
2018-04-02DT*3904671ND
2018-04-02DT*3904668ND
2018-04-02DT*3904669ND
2018-04-02DT*3904670ND
2018-07-09DT*3986726ND
2018-07-09DT*3986725ND
2018-07-09DT*3986724ND
2018-07-09DT*3986723ND
2018-10-01DT*4077729ND
2018-10-01DT*4077730ND
2018-10-01DT*4077731ND
2018-10-01DT*4077732ND
2019-01-084169972ND
2019-01-084169975ND
2019-01-084169977ND
2019-01-084169979ND
2019-04-014248545ND
2019-04-014248548ND
2019-04-014248547ND
2019-04-014248546ND
2019-07-084349363ND
2019-07-084349367ND
2019-07-084349365ND
2019-07-084349360ND
2019-10-074451140ND
2019-10-074451138ND
2019-10-074451136ND
2019-10-074451134ND