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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Henderson-Kerr Lake Reg Water

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
201418.6 ppb161613.0 ppb - 30.0 ppb
201518.4 ppb161613.0 ppb - 23.0 ppb
201614.1 ppb16169.70 ppb - 20.9 ppb
201713.5 ppb16168.40 ppb - 19.0 ppb
201817.4 ppb161610.00 ppb - 24.0 ppb
201912.3 ppb16167.90 ppb - 16.0 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
2014-02-119218967700213.0 ppb
2014-02-119218967700319.0 ppb
2014-02-119218967700413.0 ppb
2014-02-119218967700114.0 ppb
2014-05-1392201161001TTH20.0 ppb
2014-05-1392201161002TTH15.0 ppb
2014-05-1392201161003TTH24.0 ppb
2014-05-1392201161004TTH14.0 ppb
2014-08-1292213201001TTH30.0 ppb
2014-08-1292213201002TTH20.0 ppb
2014-08-1292213201003TTH28.0 ppb
2014-08-1292213201004TTH21.0 ppb
2014-11-1292225453003TTH18.0 ppb
2014-11-1292225453002TTH18.0 ppb
2014-11-1292225453001TTH17.0 ppb
2014-11-1392225453004TTH13.0 ppb
2015-02-1013.0 ppb
2015-02-1015.0 ppb
2015-02-1018.0 ppb
2015-02-1015.0 ppb
2015-05-1219.0 ppb
2015-05-1219.0 ppb
2015-05-1219.0 ppb
2015-05-1217.0 ppb
2015-08-1122.0 ppb
2015-08-1122.0 ppb
2015-08-1123.0 ppb
2015-08-1120.0 ppb
2015-11-1017.6 ppb
2015-11-1019.2 ppb
2015-11-1017.6 ppb
2015-11-1017.5 ppb
2016-02-0992285879004TTH9.70 ppb
2016-02-0992285879003TTH10.7 ppb
2016-02-0992285879002TTH10.8 ppb
2016-02-0992285879001TTH11.4 ppb
2016-05-1092297063004TTH11.4 ppb
2016-05-1092297063003TTH11.7 ppb
2016-05-1092297063002TTH12.7 ppb
2016-05-1092297063001TTH12.2 ppb
2016-08-0992308578001TTH20.9 ppb
2016-08-0992308578002TTH17.9 ppb
2016-08-0992308578003TTH18.5 ppb
2016-08-0992308578004TTH17.7 ppb
2016-11-0892318998003TTH12.2 ppb
2016-11-0892318998004TTH19.1 ppb
2016-11-0892318998006TTH14.8 ppb
2016-11-0892318998011TTH14.0 ppb
2017-02-1592330204004TTH11.0 ppb
2017-02-1592330204011TTH8.40 ppb
2017-02-1592330204006TTH12.0 ppb
2017-02-1592330204007TTH11.0 ppb
2017-05-0992340094001TTH12.0 ppb
2017-05-0992340094002TTH13.0 ppb
2017-05-0992340094003TTH13.0 ppb
2017-05-0992340094004TTH13.0 ppb
2017-08-0892350856011TTH15.0 ppb
2017-08-0892350856010TTH11.0 ppb
2017-08-0892350856008TTH16.0 ppb
2017-08-0892350856003TTH16.0 ppb
2017-11-1492363440001TTH19.0 ppb
2017-11-1492363440002TTH13.0 ppb
2017-11-1492363440005TTH14.0 ppb
2017-11-1492363440006TTH18.0 ppb
2018-02-1392373408008TTH 22.0 ppb
2018-02-1392373408005TTH 10.00 ppb
2018-02-1392373408004TTH 10.00 ppb
2018-02-1392373408001TTH 18.0 ppb
2018-05-0192383116004TTH 18.0 ppb
2018-05-0192383116001TTH 24.0 ppb
2018-05-0192383116002TTH 15.0 ppb
2018-05-0192383116003TTH 15.0 ppb
2018-08-0892395245004TTH 23.0 ppb
2018-08-0892395245003TTH 20.0 ppb
2018-08-0892395245002TTH 18.0 ppb
2018-08-0892395245001TTH 22.0 ppb
2018-11-0692406545003TTH 19.0 ppb
2018-11-0692406545007TTH 14.0 ppb
2018-11-0692406545008TTH 15.0 ppb
2018-11-0692406545011TTH 16.0 ppb
2019-02-0592416954001_377011.0 ppb
2019-02-0592416954002_37707.90 ppb
2019-02-0592416954003_377013.0 ppb
2019-02-0592416954004_37708.50 ppb
2019-05-0792428873001_377014.0 ppb
2019-05-0792428873004_377013.0 ppb
2019-05-0792428873003_377012.0 ppb
2019-05-0792428873002_377011.0 ppb
2019-08-0692440471004_377016.0 ppb
2019-08-0692440471008_377015.0 ppb
2019-08-0692440471005_377014.0 ppb
2019-08-0692440471001_377010.00 ppb
2019-11-0592452959004_377012.0 ppb
2019-11-0592452959003_377014.0 ppb
2019-11-0592452959002_377012.0 ppb
2019-11-0592452959001_377013.0 ppb