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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Dade County Water Authority

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0706 ppb171ND - 1.20 ppb
20150.159 ppb172ND - 1.40 ppb
2016ND170ND
20170.224 ppb173ND - 1.40 ppb
20180.0706 ppb171ND - 1.20 ppb
2019ND170ND

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
2014-02-18AI28233ND
2014-02-18AI28236ND
2014-02-18AI28237ND
2014-02-18AI28238ND
2014-02-18AI28239ND
2014-05-20AI41028ND
2014-05-20AI41029ND
2014-05-20AI41030ND
2014-05-20AI41031ND
2014-08-19AI50424ND
2014-08-19AI50425ND
2014-08-19AI504261.20 ppb
2014-08-19AI50427ND
2014-11-12AI59490ND
2014-11-12AI59491ND
2014-11-12AI59492ND
2014-11-12AI59493ND
2015-02-10AI64727ND
2015-02-10AI64728ND
2015-02-10AI64729ND
2015-02-10AI64730ND
2015-02-23AI65378ND
2015-05-05AI76365ND
2015-05-05AI76366ND
2015-05-05AI76367ND
2015-05-05AI76368ND
2015-08-11AI860801.30 ppb
2015-08-11AI860811.40 ppb
2015-08-11AI86082ND
2015-08-11AI86083ND
2015-11-16AJ01127ND
2015-11-16AJ01128ND
2015-11-16AJ01129ND
2015-11-16AJ01130ND
2016-02-16AJ06565ND
2016-02-16AJ06566ND
2016-02-16AJ06567ND
2016-02-16AJ06568ND
2016-02-16AJ06569ND
2016-05-10AJ11955ND
2016-05-10AJ11956ND
2016-05-10AJ11957ND
2016-05-10AJ11958ND
2016-08-09AJ21988ND
2016-08-09AJ21989ND
2016-08-09AJ21990ND
2016-08-09AJ21991ND
2016-11-15AJ33640ND
2016-11-15AJ33641ND
2016-11-15AJ33642ND
2016-11-15AJ33643ND
2017-02-14AJ46494ND
2017-02-14AJ46495ND
2017-02-14AJ46496ND
2017-02-14AJ46497ND
2017-05-03AJ54781ND
2017-05-09AJ551571.10 ppb
2017-05-09AJ55158ND
2017-05-09AJ55159ND
2017-05-09AJ55160ND
2017-08-08AJ634891.30 ppb
2017-08-08AJ634901.40 ppb
2017-08-08AJ63491ND
2017-08-08AJ63492ND
2017-11-14AJ73816ND
2017-11-14AJ73817ND
2017-11-14AJ73818ND
2017-11-14AJ73819ND
2018-02-13AJ83891ND
2018-02-13AJ83901ND
2018-02-13AJ83902ND
2018-02-13AJ83903ND
2018-02-13AJ83904ND
2018-06-04AJ90525ND
2018-06-04AJ905261.20 ppb
2018-06-04AJ90527ND
2018-06-04AJ90528ND
2018-08-06AJ96654ND
2018-08-06AJ96655ND
2018-08-06AJ96656ND
2018-08-06AJ96657ND
2018-11-13AK06027ND
2018-11-13AK06028ND
2018-11-13AK06029ND
2018-11-13AK06030ND
2019-02-13AK11332ND
2019-02-13AK11333ND
2019-02-13AK11334ND
2019-02-13AK11335ND
2019-03-13AK13350ND
2019-05-06AK16586ND
2019-05-06AK16587ND
2019-05-06AK16588ND
2019-05-06AK16589ND
2019-08-12AK25747ND
2019-08-12AK25748ND
2019-08-12AK25749ND
2019-08-12AK25750ND
2019-11-12AK36650ND
2019-11-12AK36651ND
2019-11-12AK36652ND
2019-11-12AK36653ND