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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Omaha 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
20150.0350 ppb31ND - 0.105 ppb
2016ND10ND
20170.000667 ppb31ND - 0.00200 ppb
20180.0153 ppb31ND - 0.0460 ppb
2019ND10ND

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
2014-02-1814051007902ND
2014-02-1814051008002ND
2014-04-2914121004602ND
2014-04-2914121004702ND
2014-07-2814212001202ND
2014-07-2814212001102ND
2014-08-1814233003609ND
2014-08-1814233003603ND
2014-10-2714303008602ND
2014-10-2714303008702ND
2015-07-27152100013030.105 ppb
2015-07-2715210001309ND
2015-11-1015317006202ND
2016-11-1416321009702ND
2017-07-2417207001308ND
2017-07-24172070013030.00200 ppb
2017-10-2317299004502ND
2018-07-30182130067030.0460 ppb
2018-07-3018213006709ND
2018-10-2918304000802ND
2019-12-1819353000202ND