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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Bellaire Public Water System

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.583 ppb62ND - 2.40 ppb
2015ND20ND
2016ND20ND
2017ND20ND
20181.61 ppb3011ND - 17.2 ppb
20191.09 ppb267ND - 6.40 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
2014-01-07A1401120982.40 ppb
2014-01-07A1401194991.10 ppb
2014-04-07A140176283ND
2014-04-07A140180118ND
2014-07-01A140213880ND
2014-09-15A140217291ND
2015-07-09A150216589ND
2015-07-09A150304301ND
2016-07-05A160375092ND
2016-07-05A160399317ND
2017-07-03A170504707ND
2017-07-03A170504708ND
2018-04-02180401500.580 ppb
2018-04-0218040151ND
2018-04-0218040152ND
2018-05-0118050150ND
2018-05-0118050149ND
2018-05-01180501481.70 ppb
2018-06-0418060376ND
2018-06-04180603741.79 ppb
2018-06-0418060375ND
2018-07-0218070371ND
2018-07-02180703691.42 ppb
2018-07-0218070370ND
2018-07-091807094913.1 ppb
2018-07-091807095017.2 ppb
2018-08-0618081188ND
2018-08-0618081186ND
2018-08-06180811873.68 ppb
2018-08-0618081185ND
2018-09-0318091679ND
2018-09-0318091680ND
2018-09-03180916782.83 ppb
2018-10-0418101621ND
2018-10-0418101624ND
2018-10-04181016232.56 ppb
2018-11-0518111591ND
2018-11-0518111588ND
2018-11-05181115901.68 ppb
2018-12-0318121616ND
2018-12-03181216181.72 ppb
2018-12-0318121619ND
2019-02-0419021279ND
2019-02-0419021281ND
2019-02-0419021280ND
2019-04-0119041103ND
2019-04-01190411003.02 ppb
2019-04-0119041102ND
2019-05-0619050942ND
2019-05-06190509396.40 ppb
2019-05-0619040941ND
2019-06-03190613914.11 ppb
2019-06-0319061394ND
2019-06-0319061393ND
2019-07-0119071448ND
2019-07-0119071451ND
2019-07-0119071450ND
2019-07-0219071455ND
2019-07-0219071454ND
2019-07-22190734576.40 ppb
2019-07-2219073456ND
2019-08-0419081809ND
2019-08-04190818074.69 ppb
2019-08-0419081810ND
2019-09-02190913300.570 ppb
2019-09-0219091331ND
2019-09-02190913333.22 ppb
2019-09-0219091332ND