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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Bellaire

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

 

108

Samples

0

Samples exceeding legal limit (MCL)

91

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.01 ppb1615ND - 5.80 ppb
20152.16 ppb1815ND - 4.20 ppb
20161.46 ppb1814ND - 3.60 ppb
20172.50 ppb18181.60 ppb - 3.90 ppb
20182.06 ppb1816ND - 4.90 ppb
20191.26 ppb2013ND - 3.00 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
2014-03-03AC452543.00 ppb
2014-03-03AC452593.00 ppb
2014-03-03AC452611.10 ppb
2014-03-03AC452583.10 ppb
2014-04-07AC496111.20 ppb
2014-06-06AC562812.60 ppb
2014-06-06AC562902.50 ppb
2014-06-06AC562932.40 ppb
2014-09-25AC682892.50 ppb
2014-09-25AC682971.10 ppb
2014-09-25AC68290ND
2014-09-25AC682874.00 ppb
2014-11-21AC727625.20 ppb
2014-11-21AC727345.50 ppb
2014-11-21AC727285.80 ppb
2014-11-21AC727335.20 ppb
2015-01-20AC767622.40 ppb
2015-01-20AC767681.20 ppb
2015-01-20AC769113.00 ppb
2015-01-20AC769193.00 ppb
2015-01-20AC769163.00 ppb
2015-01-20AC769213.20 ppb
2015-04-28AC89690ND
2015-04-28AC89691ND
2015-04-28AC89688ND
2015-04-28AC896921.30 ppb
2015-07-20AD001421.90 ppb
2015-07-20AD001292.50 ppb
2015-07-20AD001252.30 ppb
2015-07-20AD000922.00 ppb
2015-11-13AD135983.60 ppb
2015-11-13AD135964.20 ppb
2015-11-13AD135992.50 ppb
2015-11-13AD135972.80 ppb
2016-01-12AD17574ND
2016-01-12AD175641.000 ppb
2016-01-12AD175551.60 ppb
2016-01-12AD17554ND
2016-01-12AD17560ND
2016-04-06AD320811.30 ppb
2016-04-06AD320481.30 ppb
2016-04-06AD320251.20 ppb
2016-04-06AD320591.80 ppb
2016-04-06AD320551.30 ppb
2016-07-07AD43282ND
2016-07-07AD432871.30 ppb
2016-07-07AD432911.30 ppb
2016-07-07AD432811.10 ppb
2016-10-04AD524603.00 ppb
2016-10-04AD524623.50 ppb
2016-10-04AD524643.60 ppb
2016-10-04AD524362.90 ppb
2017-01-18AD653612.10 ppb
2017-01-18AD653973.40 ppb
2017-01-18AD653213.00 ppb
2017-01-18AD653182.20 ppb
2017-01-18AD653192.00 ppb
2017-01-18AD653202.20 ppb
2017-04-10AD789002.50 ppb
2017-04-10AD789012.40 ppb
2017-04-10AD789031.60 ppb
2017-04-10AD789022.50 ppb
2017-07-20AD900952.70 ppb
2017-07-20AD900962.70 ppb
2017-07-20AD900923.90 ppb
2017-07-20AD900913.30 ppb
2017-10-16AE007892.20 ppb
2017-10-16AE008302.00 ppb
2017-10-16AE008292.10 ppb
2017-10-16AE007902.20 ppb
2018-01-24AE102381.90 ppb
2018-01-24AE101381.40 ppb
2018-01-24AE101394.90 ppb
2018-01-24AE101371.60 ppb
2018-01-24AE101361.50 ppb
2018-04-09AE216941.40 ppb
2018-04-09AE216311.50 ppb
2018-04-09AE216301.40 ppb
2018-04-09AE216691.60 ppb
2018-04-09AE216431.60 ppb
2018-07-02AE321632.80 ppb
2018-07-02AE321702.60 ppb
2018-07-02AE321642.60 ppb
2018-07-02AE321672.80 ppb
2018-10-12AE433943.60 ppb
2018-10-12AE43390ND
2018-10-12AE43389ND
2018-10-12AE433953.90 ppb
2019-01-15AE49865ND
2019-01-15AE498372.10 ppb
2019-01-15AE49805ND
2019-01-15AE498041.000 ppb
2019-01-15AE49803ND
2019-01-15AE49802ND
2019-04-02AE608411.70 ppb
2019-04-02AE608391.70 ppb
2019-04-02AE608421.60 ppb
2019-04-02AE608611.70 ppb
2019-04-02AE608873.00 ppb
2019-07-10AE738451.90 ppb
2019-07-10AE738562.50 ppb
2019-07-10AE73844ND
2019-07-10AE738592.10 ppb
2019-07-10AE73926ND
2019-10-22AE871942.00 ppb
2019-10-22AE871911.80 ppb
2019-10-22AE87195ND
2019-10-22AE871932.10 ppb