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EWG's Tap Water Database — 2019 UPDATE

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Dibromochloromethane

Town of Forest 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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.275 ppb41ND - 1.10 ppb
20140.394 ppb165ND - 1.50 ppb
20150.356 ppb165ND - 1.20 ppb
20160.413 ppb165ND - 1.50 ppb
20170.206 ppb163ND - 1.20 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
2013-12-172947935ND
2013-12-1729479341.10 ppb
2013-12-172947937ND
2013-12-172947936ND
2014-03-202995616ND
2014-03-202995617ND
2014-03-202995618ND
2014-03-202995619ND
2014-06-2330509441.40 ppb
2014-06-2330509461.10 ppb
2014-06-2330509481.20 ppb
2014-06-2330509501.50 ppb
2014-09-1731062461.10 ppb
2014-09-173106248ND
2014-09-173106250ND
2014-09-173106252ND
2014-12-163156858ND
2014-12-163156860ND
2014-12-163156856ND
2014-12-163156854ND
2015-03-18ND
2015-03-18ND
2015-03-18ND
2015-03-18ND
2015-06-161.10 ppb
2015-06-161.20 ppb
2015-06-161.10 ppb
2015-06-161.10 ppb
2015-09-28ND
2015-09-28ND
2015-09-28ND
2015-09-281.20 ppb
2015-12-15ND
2015-12-15ND
2015-12-15ND
2015-12-15ND
2016-03-153415088ND
2016-03-153415090ND
2016-03-153415092ND
2016-03-153415094ND
2016-06-2134757771.10 ppb
2016-06-213475779ND
2016-06-213475781ND
2016-06-213475783ND
2016-09-1935488281.40 ppb
2016-09-1935488261.50 ppb
2016-09-1935488241.40 ppb
2016-09-1935488221.20 ppb
2016-12-203608340ND
2016-12-203608338ND
2016-12-203608336ND
2016-12-203608342ND
2017-03-233660489ND
2017-03-233660491ND
2017-03-233660493ND
2017-03-233660495ND
2017-06-2037176291.000 ppb
2017-06-2037176311.10 ppb
2017-06-203717627ND
2017-06-2037176251.20 ppb
2017-09-193782239ND
2017-09-193782241ND
2017-09-193782243ND
2017-09-193782245ND
2017-12-213842966ND
2017-12-213842968ND
2017-12-213842970ND
2017-12-213842972ND