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EWG's Tap Water Database — 2019 UPDATE

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Dibromochloromethane

Lebanon

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND70ND
20140.740 ppb21ND - 1.48 ppb
20150.405 ppb21ND - 0.810 ppb
20160.0856 ppb91ND - 0.770 ppb
20170.440 ppb21ND - 0.880 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
2012-08-14AB81152ND
2013-02-19AB92893ND
2013-02-19AB92899ND
2013-02-19AB92894ND
2013-02-19AB92895ND
2013-02-19AB92896ND
2013-02-19AB92897ND
2013-02-19AB92898ND
2014-09-02AC333631.48 ppb
2014-09-02AC33364ND
2015-08-24AC574520.810 ppb
2015-08-24AC57453ND
2016-02-29AC67126ND
2016-02-29AC67122ND
2016-02-29AC67123ND
2016-02-29AC67124ND
2016-02-29AC67125ND
2016-02-29AC67127ND
2016-02-29AC67128ND
2016-07-28AC798730.770 ppb
2016-07-28AC79874ND
2017-08-24AD03469ND
2017-08-28AD034680.880 ppb