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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

City of Eden

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201417.5 ppb16169.20 ppb - 26.0 ppb
201517.7 ppb16167.50 ppb - 25.0 ppb
201618.3 ppb16167.30 ppb - 36.0 ppb
201720.7 ppb161611.0 ppb - 31.0 ppb
201813.8 ppb16166.60 ppb - 26.0 ppb
201913.1 ppb16166.60 ppb - 21.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2014-02-039218833300211.0 ppb
2014-02-039218833300313.0 ppb
2014-02-03921883330049.20 ppb
2014-02-039218833300111.0 ppb
2014-05-0192199448001DIS14.0 ppb
2014-05-0192199448002DIS17.0 ppb
2014-05-0192199448003DIS10.00 ppb
2014-05-0192199448004DIS13.0 ppb
2014-08-0592211903001TTH24.0 ppb
2014-08-0592211903002TTH26.0 ppb
2014-08-0592211903003TTH16.0 ppb
2014-08-0592211903004TTH19.0 ppb
2014-11-0492223894002TTH26.0 ppb
2014-11-0492223894004TTH23.0 ppb
2014-11-0492223894003TTH23.0 ppb
2014-11-0492223894001TTH25.0 ppb
2015-02-0211.0 ppb
2015-02-029.30 ppb
2015-02-027.50 ppb
2015-02-029.20 ppb
2015-05-0418.0 ppb
2015-05-0418.0 ppb
2015-05-0411.0 ppb
2015-05-0417.0 ppb
2015-08-0419.0 ppb
2015-08-0425.0 ppb
2015-08-0425.0 ppb
2015-08-0425.0 ppb
2015-11-0323.0 ppb
2015-11-0322.0 ppb
2015-11-0321.0 ppb
2015-11-0322.0 ppb
2016-02-0292284970001TTH7.30 ppb
2016-02-0292284970002TTH7.90 ppb
2016-02-0292284970003TTH8.50 ppb
2016-02-0292284970004TTH7.80 ppb
2016-05-0392295997004TTH12.0 ppb
2016-05-0392295997003TTH14.0 ppb
2016-05-0392295997002TTH12.0 ppb
2016-05-0392295997001TTH12.0 ppb
2016-08-0492307615001TTH35.0 ppb
2016-08-0492307615002TTH34.0 ppb
2016-08-0492307615003TTH36.0 ppb
2016-08-0492307615004TTH34.0 ppb
2016-11-0292318131001TTH19.0 ppb
2016-11-0292318131002TTH18.0 ppb
2016-11-0292318131003TTH18.0 ppb
2016-11-0292318131004TTH17.0 ppb
2017-02-0192328280004TTH11.0 ppb
2017-02-0192328280003TTH11.0 ppb
2017-02-0192328280002TTH12.0 ppb
2017-02-0192328280001TTH11.0 ppb
2017-05-0392339176001TTH21.0 ppb
2017-05-0392339176003TTH21.0 ppb
2017-05-0392339176002TTH22.0 ppb
2017-05-0392339176004TTH23.0 ppb
2017-08-0292349789001TTH27.0 ppb
2017-08-0292349789002TTH30.0 ppb
2017-08-0292349789003TTH31.0 ppb
2017-08-0292349789004TTH29.0 ppb
2017-11-0192361492001TTH20.0 ppb
2017-11-0192361492002TTH21.0 ppb
2017-11-0192361492003TTH20.0 ppb
2017-11-0192361492004TTH21.0 ppb
2018-02-0692372084004TTH 6.90 ppb
2018-02-0692372084003TTH 6.90 ppb
2018-02-0692372084002TTH 6.90 ppb
2018-02-0692372084001TTH 6.60 ppb
2018-05-0292383118004TTH 15.0 ppb
2018-05-0292383118001TTH 15.0 ppb
2018-05-0292383118002TTH 15.0 ppb
2018-05-0292383118003TTH 12.0 ppb
2018-08-0792394678004TTH 24.0 ppb
2018-08-0792394678003TTH 19.0 ppb
2018-08-0792394678002TTH 25.0 ppb
2018-08-2392396866001TTH 26.0 ppb
2018-11-0192405596001TTH 11.0 ppb
2018-11-0192405596002TTH 10.00 ppb
2018-11-0192405596003TTH 11.0 ppb
2018-11-0192405596004TTH 9.90 ppb
2019-02-0492416286001_37706.70 ppb
2019-02-0492416286002_37707.20 ppb
2019-02-0492416286003_37706.60 ppb
2019-02-0492416286004_37706.70 ppb
2019-05-0192427509001_377013.0 ppb
2019-05-0192427509004_377014.0 ppb
2019-05-0192427509003_377012.0 ppb
2019-05-0192427509002_377013.0 ppb
2019-08-0192439513002_377019.0 ppb
2019-08-0192439513004_377019.0 ppb
2019-08-0192439513003_377019.0 ppb
2019-08-0192439513001_377021.0 ppb
2019-11-0492452118004_377013.0 ppb
2019-11-0492452118003_377013.0 ppb
2019-11-0492452118002_377013.0 ppb
2019-11-0492452118001_377013.0 ppb