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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Cleveland Waterworks

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

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND30ND
2016ND40ND
2017ND50ND
2018ND90ND
2019ND100ND

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
2014-01-15AI26752ND
2014-04-22AI38519ND
2014-07-09AI45331ND
2014-07-09AI45330ND
2014-08-04AI47893ND
2015-04-06AI74143ND
2015-09-09AI89250ND
2015-09-09AI89249ND
2016-05-09AJ11777ND
2016-05-09AJ11776ND
2016-09-19AJ27646ND
2016-09-19AJ27645ND
2017-06-19AJ57861ND
2017-09-25AJ69358ND
2017-09-25AJ69357ND
2017-12-18AJ75634ND
2017-12-18AJ75633ND
2018-03-21AJ86298ND
2018-03-21AJ86297ND
2018-06-05AJ90705ND
2018-06-20AJ92135ND
2018-06-20AJ92134ND
2018-09-19AK01750ND
2018-09-19AK01749ND
2018-12-10AK07664ND
2018-12-10AK07663ND
2019-03-18AK13476ND
2019-03-18AK13475ND
2019-05-21AK17994ND
2019-05-21AK17993ND
2019-06-17AK19929ND
2019-06-17AK19928ND
2019-09-16AK30882ND
2019-09-16AK30881ND
2019-12-09AK37791ND
2019-12-09AK37792ND