Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

City of Bellaire

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

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.488 ppb166ND - 2.40 ppb
20150.217 ppb183ND - 1.80 ppb
20160.122 ppb182ND - 1.20 ppb
20170.383 ppb184ND - 2.60 ppb
20180.239 ppb182ND - 2.80 ppb
20190.245 ppb202ND - 2.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-03-03AC45254ND
2014-03-03AC452592.40 ppb
2014-03-03AC45261ND
2014-03-03AC452581.000 ppb
2014-04-07AC49611ND
2014-06-06AC56281ND
2014-06-06AC56290ND
2014-06-06AC56293ND
2014-09-25AC68289ND
2014-09-25AC68297ND
2014-09-25AC68290ND
2014-09-25AC68287ND
2014-11-21AC727621.10 ppb
2014-11-21AC727341.10 ppb
2014-11-21AC727281.20 ppb
2014-11-21AC727331.000 ppb
2015-01-20AC76762ND
2015-01-20AC767681.000 ppb
2015-01-20AC76911ND
2015-01-20AC76919ND
2015-01-20AC76916ND
2015-01-20AC76921ND
2015-04-28AC89690ND
2015-04-28AC89691ND
2015-04-28AC89688ND
2015-04-28AC89692ND
2015-07-20AD00142ND
2015-07-20AD00129ND
2015-07-20AD00125ND
2015-07-20AD00092ND
2015-11-13AD135981.10 ppb
2015-11-13AD135961.80 ppb
2015-11-13AD13599ND
2015-11-13AD13597ND
2016-01-12AD17574ND
2016-01-12AD17564ND
2016-01-12AD17555ND
2016-01-12AD17554ND
2016-01-12AD17560ND
2016-04-06AD320811.000 ppb
2016-04-06AD32048ND
2016-04-06AD32025ND
2016-04-06AD32059ND
2016-04-06AD32055ND
2016-07-07AD43282ND
2016-07-07AD43287ND
2016-07-07AD43291ND
2016-07-07AD43281ND
2016-10-04AD52460ND
2016-10-04AD52462ND
2016-10-04AD524641.20 ppb
2016-10-04AD52436ND
2017-01-18AD65361ND
2017-01-18AD653972.60 ppb
2017-01-18AD653211.40 ppb
2017-01-18AD65318ND
2017-01-18AD65319ND
2017-01-18AD65320ND
2017-04-10AD78900ND
2017-04-10AD78901ND
2017-04-10AD789031.70 ppb
2017-04-10AD78902ND
2017-07-20AD90095ND
2017-07-20AD90096ND
2017-07-20AD900921.20 ppb
2017-07-20AD90091ND
2017-10-16AE00789ND
2017-10-16AE00830ND
2017-10-16AE00829ND
2017-10-16AE00790ND
2018-01-24AE10238ND
2018-01-24AE10138ND
2018-01-24AE101392.80 ppb
2018-01-24AE10137ND
2018-01-24AE10136ND
2018-04-09AE216941.50 ppb
2018-04-09AE21631ND
2018-04-09AE21630ND
2018-04-09AE21669ND
2018-04-09AE21643ND
2018-07-02AE32163ND
2018-07-02AE32170ND
2018-07-02AE32164ND
2018-07-02AE32167ND
2018-10-12AE43394ND
2018-10-12AE43390ND
2018-10-12AE43389ND
2018-10-12AE43395ND
2019-01-15AE49865ND
2019-01-15AE498372.20 ppb
2019-01-15AE49805ND
2019-01-15AE49804ND
2019-01-15AE49803ND
2019-01-15AE49802ND
2019-04-02AE60841ND
2019-04-02AE60839ND
2019-04-02AE60842ND
2019-04-02AE60861ND
2019-04-02AE608872.70 ppb
2019-07-10AE73845ND
2019-07-10AE73856ND
2019-07-10AE73844ND
2019-07-10AE73859ND
2019-07-10AE73926ND
2019-10-22AE87194ND
2019-10-22AE87191ND
2019-10-22AE87195ND
2019-10-22AE87193ND