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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

IL American-granite City

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

35

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.981 ppb1611ND - 2.00 ppb
20150.800 ppb168ND - 1.80 ppb
20160.450 ppb165ND - 1.70 ppb
20170.313 ppb164ND - 1.50 ppb
20180.231 ppb163ND - 1.30 ppb
20190.306 ppb164ND - 1.30 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
2014-02-04243618011.30 ppb
2014-02-0424361901ND
2014-02-04243620011.000 ppb
2014-02-04243621012.00 ppb
2014-05-0725161801ND
2014-05-0725161901ND
2014-05-0725162001ND
2014-05-0725162101ND
2014-08-06263421011.60 ppb
2014-08-06263422011.50 ppb
2014-08-06263423011.50 ppb
2014-08-06263424011.40 ppb
2014-11-07271673011.30 ppb
2014-11-07271674011.30 ppb
2014-11-07271672011.60 ppb
2014-11-07271671011.20 ppb
2015-02-0427914601ND
2015-02-0427914901ND
2015-02-0427914701ND
2015-02-0427914801ND
2015-05-0628848501ND
2015-05-0628848801ND
2015-05-0628848701ND
2015-05-0628848601ND
2015-08-05297787011.60 ppb
2015-08-05297788011.60 ppb
2015-08-05297786011.60 ppb
2015-08-05297789011.40 ppb
2015-11-03306345011.60 ppb
2015-11-03306346011.50 ppb
2015-11-03306344011.70 ppb
2015-11-03306347011.80 ppb
2016-02-0331252301ND
2016-02-0331252201ND
2016-02-0331252101ND
2016-02-0331252001ND
2016-05-0531978701ND
2016-05-0531978901ND
2016-05-05319786011.20 ppb
2016-05-0531978801ND
2016-08-01330030011.50 ppb
2016-08-01330027011.70 ppb
2016-08-01330028011.40 ppb
2016-08-01330029011.40 ppb
2016-11-0233735401ND
2016-11-0233735701ND
2016-11-0233735501ND
2016-11-0233735601ND
2017-02-0834615001ND
2017-02-0834615301ND
2017-02-0834615201ND
2017-02-0834615101ND
2017-05-0235384701ND
2017-05-0235384801ND
2017-05-0235384501ND
2017-05-0235384601ND
2017-08-0236680201ND
2017-08-02366804011.20 ppb
2017-08-02366801011.50 ppb
2017-08-0236680301ND
2017-11-0137605901ND
2017-11-01376061011.10 ppb
2017-11-0137606001ND
2017-11-01376062011.20 ppb
2018-02-0738573401ND
2018-02-0738573301ND
2018-02-0738573201ND
2018-02-0738573101ND
2018-05-0939322101ND
2018-05-0939321801ND
2018-05-0939321901ND
2018-05-0939322001ND
2018-08-0640534201ND
2018-08-06405341011.20 ppb
2018-08-06405340011.20 ppb
2018-08-06405339011.30 ppb
2018-11-0741803301ND
2018-11-0741803401ND
2018-11-0741803501ND
2018-11-0741803601ND
2019-02-0642822801ND
2019-02-0642822901ND
2019-02-0642823001ND
2019-02-0642823101ND
2019-05-0943932501ND
2019-05-0943932801ND
2019-05-0943932701ND
2019-05-0943932601ND
2019-08-05457570011.10 ppb
2019-08-05457572011.20 ppb
2019-08-05457571011.30 ppb
2019-08-05457569011.30 ppb
2019-11-0647023801ND
2019-11-0647023701ND
2019-11-0647023601ND
2019-11-0647023501ND