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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Fitchburg Utility District 1

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0600 ppb61ND - 0.360 ppb
2015ND60ND
20160.115 ppb62ND - 0.380 ppb
20170.205 ppb62ND - 0.840 ppb
20180.180 ppb31ND - 0.540 ppb
20190.590 ppb32ND - 1.40 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
2014-03-04121708001ND
2014-08-19152081001ND
2014-08-19152086001ND
2014-08-19152071001ND
2014-08-19152068001ND
2014-08-191520800010.360 ppb
2015-07-3035199919001-1ND
2015-07-3035199919002-1ND
2015-07-3035199919003-1ND
2015-07-3035199919004-2ND
2015-07-3035199919005-2ND
2015-09-0935206535001-1ND
2016-08-17939984ND
2016-08-179399860.380 ppb
2016-08-179399850.310 ppb
2016-08-17939982ND
2016-08-17939980ND
2016-08-17939978ND
2017-07-191005313ND
2017-07-191005316ND
2017-07-191005319ND
2017-07-191005322ND
2017-07-1910053240.390 ppb
2017-07-1910053250.840 ppb
2018-07-261069933ND
2018-07-261069936ND
2018-07-2610699370.540 ppb
2019-07-241136903ND
2019-07-2411369060.370 ppb
2019-07-2411369071.40 ppb