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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Mebane

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.375 ppb166ND - 1.000 ppb
20151.19 ppb1610ND - 3.00 ppb
20161.18 ppb168ND - 2.70 ppb
2017ND160ND
20180.700 ppb169ND - 1.60 ppb
20190.363 ppb164ND - 1.50 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
2014-02-1816039-14ND
2014-02-1816040-14ND
2014-02-1816041-14ND
2014-02-1816038-14ND
2014-05-14173101A14ND
2014-05-14173104-14ND
2014-05-14173102-141.000 ppb
2014-05-14173103-141.000 ppb
2014-08-13173628-14ND
2014-08-13173629-141.000 ppb
2014-08-13173630-14ND
2014-08-13173631-14ND
2014-11-12174362-141.000 ppb
2014-11-12174363-141.000 ppb
2014-11-12174361-141.000 ppb
2014-11-12174360-14ND
2015-02-111.000 ppb
2015-02-11ND
2015-02-112.00 ppb
2015-02-111.000 ppb
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-05-13ND
2015-08-133.00 ppb
2015-08-133.00 ppb
2015-08-133.00 ppb
2015-08-133.00 ppb
2015-11-101.000 ppb
2015-11-10ND
2015-11-101.000 ppb
2015-11-101.000 ppb
2016-02-17234-16ND
2016-02-17236-16ND
2016-02-17237-16ND
2016-02-17235-16ND
2016-05-1134475382.40 ppb
2016-05-1134475372.20 ppb
2016-05-1134475362.50 ppb
2016-05-1134475352.00 ppb
2016-08-1035189222.20 ppb
2016-08-1035189232.50 ppb
2016-08-1035189242.70 ppb
2016-08-1035189252.30 ppb
2016-11-083582366ND
2016-11-083582367ND
2016-11-083582368ND
2016-11-083582369ND
2017-02-083634861ND
2017-02-083634864ND
2017-02-083634862ND
2017-02-083634863ND
2017-05-103692255ND
2017-05-103692256ND
2017-05-103692257ND
2017-05-103692258ND
2017-08-093753249ND
2017-08-093753248ND
2017-08-093753247ND
2017-08-093753246ND
2017-11-083817344ND
2017-11-083817345ND
2017-11-083817346ND
2017-11-083817347ND
2018-02-143872942 1.000 ppb
2018-02-143872941 1.10 ppb
2018-02-143872940 1.10 ppb
2018-02-143872939 1.000 ppb
2018-05-093933039 1.000 ppb
2018-05-093933036 ND
2018-05-093933037 ND
2018-05-093933038 ND
2018-08-084016643 1.60 ppb
2018-08-084016642 1.60 ppb
2018-08-084016641 1.50 ppb
2018-08-084016640 1.30 ppb
2018-11-144124961 ND
2018-11-144124962 ND
2018-11-144124963 ND
2018-11-144124964 ND
2019-02-134197657 ND
2019-02-134197658 ND
2019-02-134197659 ND
2019-02-134197660 ND
2019-05-084288013 ND
2019-05-084288016 ND
2019-05-084288015 ND
2019-05-084288014 ND
2019-08-144387679 1.50 ppb
2019-08-144387681 1.50 ppb
2019-08-144387680 1.40 ppb
2019-08-144387678 1.40 ppb
2019-11-064478938 ND
2019-11-064478936 ND
2019-11-064478934 ND
2019-11-064478932 ND