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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Davie County Water System

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
2013N/A00N/A
20140.679 ppb1611ND - 1.60 ppb
20150.856 ppb168ND - 2.60 ppb
20160.781 ppb169ND - 1.90 ppb
20170.348 ppb165ND - 1.80 ppb
20180.138 ppb162ND - 1.20 ppb
20190.125 ppb162ND - 1.000 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
2014-02-18C401959-02ND
2014-02-18C401959-030.730 ppb
2014-02-18C401959-040.840 ppb
2014-02-18C401959-010.500 ppb
2014-05-14C406218-010.820 ppb
2014-05-14C406219-010.960 ppb
2014-05-14C406220-010.820 ppb
2014-05-14C406222-010.800 ppb
2014-08-13C410513-011.40 ppb
2014-08-13C410513-021.40 ppb
2014-08-13C410513-031.60 ppb
2014-08-13C410513-041.000 ppb
2014-11-19C415153-01ND
2014-11-19C415153-04ND
2014-11-19C415153-03ND
2014-11-19C415153-02ND
2015-02-18ND
2015-02-18ND
2015-02-18ND
2015-02-18ND
2015-05-201.10 ppb
2015-05-201.000 ppb
2015-05-201.50 ppb
2015-05-202.00 ppb
2015-08-192.60 ppb
2015-08-191.90 ppb
2015-08-191.90 ppb
2015-08-191.70 ppb
2015-11-18ND
2015-11-18ND
2015-11-18ND
2015-11-18ND
2016-02-17CZ02170-01ND
2016-02-17CZ02170-02ND
2016-02-17CZ02170-04ND
2016-02-18CZ02170-03ND
2016-05-18CZ07395-031.20 ppb
2016-05-18CZ07395-041.30 ppb
2016-05-18CZ07395-021.30 ppb
2016-05-18CZ07395-011.20 ppb
2016-08-17CZ12364-01RE11.70 ppb
2016-08-17CZ12364-02RE11.90 ppb
2016-08-17CZ12364-031.000 ppb
2016-08-17CZ12364-041.30 ppb
2016-11-16CZ17335-011.60 ppb
2016-11-16CZ17335-02ND
2016-11-16CZ17335-03ND
2016-11-16CZ17335-04ND
2017-02-15CA02466-03ND
2017-02-15CA02466-02ND
2017-02-15CA02466-01ND
2017-02-21CA02740-01ND
2017-05-16CA07464-03ND
2017-05-16CA07464-021.10 ppb
2017-05-16CA07464-01ND
2017-05-16CA07464-04ND
2017-08-15680-142527-231.80 ppb
2017-08-15680-142527-240.840 ppb
2017-08-15680-142527-250.910 ppb
2017-08-15680-142527-260.920 ppb
2017-11-148664-111417-B01MND
2017-11-148664-111417-B02MND
2017-11-308664-113017-B03MND
2017-11-308664-113017-B04MND
2018-02-20CB02414-04 ND
2018-02-20CB02414-03 ND
2018-02-20CB02414-01 ND
2018-02-21CB02414-02 ND
2018-05-15CB07339-01 1.20 ppb
2018-05-15CB07339-02 ND
2018-05-15CB07339-04 ND
2018-05-15CB07339-03 ND
2018-08-15CB12554-04 ND
2018-08-15CB12554-03 ND
2018-08-15CB12554-02 ND
2018-08-15CB12554-01 ND
2018-11-132244-18 ND
2018-11-132243-18 ND
2018-11-132242-18 ND
2018-11-132241-18 1.000 ppb
2019-02-193103-19 ND
2019-02-193102-19 ND
2019-02-193101-19 ND
2019-02-193100-19 ND
2019-05-143723-19 ND
2019-05-143722-19 ND
2019-05-143721-19 1.000 ppb
2019-05-143720-19 1.000 ppb
2019-08-134654-19 ND
2019-08-134657-19 ND
2019-08-134656-19 ND
2019-08-134655-19 ND
2019-11-195602-19 ND
2019-11-195601-19 ND
2019-11-195600-19 ND
2019-11-195599-19 ND