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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Berkeley Twp MUA

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

 

92

Samples

0

Samples exceeding legal limit (MCL)

83

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.11 ppb1211ND - 1.71 ppb
20150.949 ppb1614ND - 1.52 ppb
20161.15 ppb16160.770 ppb - 1.56 ppb
20171.12 ppb16160.550 ppb - 1.40 ppb
20181.17 ppb1613ND - 1.92 ppb
20191.10 ppb1613ND - 1.98 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
2014-05-22A166681.44 ppb
2014-05-22A166691.30 ppb
2014-05-22A166701.01 ppb
2014-05-22A166711.02 ppb
2014-08-20A173011.71 ppb
2014-08-20A173021.05 ppb
2014-08-20A17300ND
2014-08-20A173031.33 ppb
2014-11-20A178831.17 ppb
2014-11-20A178841.14 ppb
2014-11-20A178820.380 ppb
2014-11-20A178851.71 ppb
2015-02-18A185070.760 ppb
2015-02-18A185060.780 ppb
2015-02-18A18505ND
2015-02-18A185080.750 ppb
2015-05-19A190680.920 ppb
2015-05-19A190661.11 ppb
2015-05-19A19065ND
2015-05-19A190670.720 ppb
2015-08-17A196891.13 ppb
2015-08-17A196801.18 ppb
2015-08-17A196811.38 ppb
2015-08-17A196881.01 ppb
2015-11-16A202771.40 ppb
2015-11-16A202741.52 ppb
2015-11-16A202751.34 ppb
2015-11-16A202761.19 ppb
2016-02-16A209040.770 ppb
2016-02-16A209051.05 ppb
2016-02-16A209060.890 ppb
2016-02-16A209070.770 ppb
2016-05-16A215291.36 ppb
2016-05-16A215311.07 ppb
2016-05-16A215321.32 ppb
2016-05-16A215301.56 ppb
2016-08-15D93510.780 ppb
2016-08-15D93530.780 ppb
2016-08-15D93541.42 ppb
2016-08-15D93521.41 ppb
2016-11-14A227941.48 ppb
2016-11-14A227931.03 ppb
2016-11-14A227961.41 ppb
2016-11-14A227951.25 ppb
2017-02-14A233561.10 ppb
2017-02-14A233540.550 ppb
2017-02-14A233571.07 ppb
2017-02-14A233701.33 ppb
2017-05-15A240150.970 ppb
2017-05-15A240131.10 ppb
2017-05-15A240161.39 ppb
2017-05-15A240141.23 ppb
2017-08-14A246641.19 ppb
2017-08-14A246630.970 ppb
2017-08-14A246531.16 ppb
2017-08-14A246621.39 ppb
2017-11-13A252561.40 ppb
2017-11-13A252530.640 ppb
2017-11-13A252541.20 ppb
2017-11-13A252551.27 ppb
2018-02-13A257391.33 ppb
2018-02-13A257360.940 ppb
2018-02-13A257370.950 ppb
2018-02-13A257381.26 ppb
2018-05-14A26281ND
2018-05-14A262841.66 ppb
2018-05-14A26282ND
2018-05-14A262831.41 ppb
2018-08-13A269271.40 ppb
2018-08-13A26928ND
2018-08-13A269261.69 ppb
2018-08-13A269251.92 ppb
2018-11-12A275671.60 ppb
2018-11-12A275641.40 ppb
2018-11-12A275661.54 ppb
2018-11-12A275651.54 ppb
2019-02-11A281361.31 ppb
2019-02-11A281381.10 ppb
2019-02-11A281370.900 ppb
2019-02-11A281391.09 ppb
2019-05-14A286501.22 ppb
2019-05-14A286491.98 ppb
2019-05-14A286471.66 ppb
2019-05-14A286481.36 ppb
2019-08-12A29272ND
2019-08-12A29269ND
2019-08-12A292701.34 ppb
2019-08-12A29271ND
2019-11-123-A299181.29 ppb
2019-11-123-A299191.27 ppb
2019-11-123-A299201.35 ppb
2019-11-123-A299211.72 ppb