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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

City of Universal City

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.650 ppb167ND - 2.10 ppb
20150.232 ppb194ND - 1.20 ppb
20160.294 ppb164ND - 1.50 ppb
20170.0875 ppb161ND - 1.40 ppb
20180.205 ppb193ND - 1.40 ppb
20190.194 ppb163ND - 1.10 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-03-24AC479611.000 ppb
2014-03-24AC47952ND
2014-03-24AC479511.20 ppb
2014-03-24AC479561.90 ppb
2014-04-17AC51063ND
2014-04-17AC51062ND
2014-04-17AC51042ND
2014-04-17AC510441.000 ppb
2014-09-04AC65903ND
2014-09-04AC659071.20 ppb
2014-09-04AC65906ND
2014-09-04AC659082.10 ppb
2014-10-24AC70583ND
2014-10-24AC70605ND
2014-10-24AC70603ND
2014-10-24AC705662.00 ppb
2015-02-19AC81181ND
2015-02-19AC81217ND
2015-02-19AC81161ND
2015-02-19AC81148ND
2015-02-19AC811491.10 ppb
2015-02-19AC811461.20 ppb
2015-04-29AC89838ND
2015-04-29AC89842ND
2015-04-29AC89837ND
2015-04-29AC89840ND
2015-04-29AC89880ND
2015-07-28AD01208ND
2015-07-28AD01224ND
2015-07-28AD01220ND
2015-07-28AD012281.10 ppb
2015-11-10AD13321ND
2015-11-10AD13319ND
2015-11-10AD13322ND
2015-11-10AD133201.000 ppb
2016-03-24AD30383ND
2016-03-24AD30384ND
2016-03-24AD30385ND
2016-03-24AD303821.000 ppb
2016-06-03AD39381ND
2016-06-03AD393751.000 ppb
2016-06-03AD39391ND
2016-06-03AD393761.50 ppb
2016-08-01AD46390ND
2016-08-01AD46369ND
2016-08-01AD46389ND
2016-08-01AD46367ND
2016-11-18AD58795ND
2016-11-18AD58798ND
2016-11-18AD58799ND
2016-11-18AD588051.20 ppb
2017-01-09AD63539ND
2017-01-09AD63546ND
2017-01-09AD63544ND
2017-01-09AD63540ND
2017-04-05AD78537ND
2017-04-05AD78542ND
2017-04-05AD78540ND
2017-04-05AD785391.40 ppb
2017-07-05AD88296ND
2017-07-05AD88291ND
2017-07-05AD88293ND
2017-07-05AD88297ND
2017-10-13AE00797ND
2017-10-13AE00796ND
2017-10-13AE00798ND
2017-10-13AE00795ND
2018-01-09AE08365ND
2018-01-09AE08347ND
2018-01-09AE08363ND
2018-01-09AE08306ND
2018-01-09AE08296ND
2018-01-09AE08297ND
2018-01-09AE08304ND
2018-04-09AE21601ND
2018-04-09AE21603ND
2018-04-09AE21607ND
2018-04-09AE21600ND
2018-07-13AE33333ND
2018-07-13AE33334ND
2018-07-13AE33328ND
2018-07-13AE333271.40 ppb
2018-10-10AE43099ND
2018-10-10AE43086ND
2018-10-10AE431021.20 ppb
2018-10-10AE431051.30 ppb
2019-01-24AE51220ND
2019-01-24AE51234ND
2019-01-24AE51215ND
2019-01-24AE51214ND
2019-04-10AE61798ND
2019-04-10AE61802ND
2019-04-10AE61808ND
2019-04-10AE617971.000 ppb
2019-07-10AE73878ND
2019-07-10AE73871ND
2019-07-10AE73877ND
2019-07-10AE738701.10 ppb
2019-10-03AE85679ND
2019-10-03AE85673ND
2019-10-03AE85674ND
2019-10-03AE856721.000 ppb