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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Bel-di-gil Water System

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.49 ppb2014ND - 6.20 ppb
20151.91 ppb168ND - 4.60 ppb
20163.11 ppb164ND - 14.3 ppb
20170.300 ppb162ND - 2.40 ppb
20180.166 ppb168ND - 0.400 ppb
20190.153 ppb164ND - 0.620 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
2014-02-17L0039849-02ND
2014-02-17L0039849-011.60 ppb
2014-02-17L0039849-02ND
2014-02-17L0039849-011.60 ppb
2014-03-24AD90022ND
2014-03-24AD90023ND
2014-03-24AD90023ND
2014-03-24AD90022ND
2014-04-14L0041967-012.90 ppb
2014-04-14L0041967-022.30 ppb
2014-04-14L0041967-022.30 ppb
2014-04-14L0041967-012.90 ppb
2014-06-11L0044248-016.20 ppb
2014-06-11L0044248-023.80 ppb
2014-06-11L0044248-023.80 ppb
2014-06-11L0044248-016.20 ppb
2014-10-14L0049350-014.70 ppb
2014-10-14L0049350-023.40 ppb
2014-10-14L0049350-023.40 ppb
2014-10-14L0049350-014.70 ppb
2015-01-21L0053346-014.60 ppb
2015-01-21L0053346-024.60 ppb
2015-01-21L0053346-024.60 ppb
2015-01-21L0053346-014.60 ppb
2015-04-21LA6100-23.20 ppb
2015-04-21LA6100-12.90 ppb
2015-04-21LA6100-23.20 ppb
2015-04-21LA6100-12.90 ppb
2015-07-08LA9146-1ND
2015-07-08LA9146-2ND
2015-07-08LA9146-2ND
2015-07-08LA9146-1ND
2015-11-05LA13717-1ND
2015-11-05LA13717-2ND
2015-11-05LA13717-2ND
2015-11-05LA13717-1ND
2016-01-19LA16268-1ND
2016-01-19LA16268-1ND
2016-01-19LA16268-2ND
2016-01-19LA16268-2ND
2016-04-26LA19893-1ND
2016-04-26LA19893-1ND
2016-04-26LA19893-2ND
2016-04-26LA19893-2ND
2016-07-11LA22901-1ND
2016-07-11LA22901-2ND
2016-07-11LA22901-1ND
2016-07-11LA22901-2ND
2016-10-24LA26915-210.6 ppb
2016-10-24LA26915-114.3 ppb
2016-10-24LA26915-210.6 ppb
2016-10-24LA26915-114.3 ppb
2017-01-2035290204014ND
2017-01-2035290204013ND
2017-01-2035290204014ND
2017-01-2035290204013ND
2017-04-0635305184016ND
2017-04-0635305184016ND
2017-04-0635305184015ND
2017-04-0635305184015ND
2017-07-1335324317010ND
2017-07-1335324317009ND
2017-07-1335324317010ND
2017-07-1335324317009ND
2017-10-20353434260012.40 ppb
2017-10-2035343426002ND
2017-10-20353434260012.40 ppb
2017-10-2035343426002ND
2018-01-19353693640020.400 ppb
2018-01-19353693640020.400 ppb
2018-01-19353693640010.270 ppb
2018-01-19353693640010.270 ppb
2018-04-0535384640001ND
2018-04-0535384640002ND
2018-04-0535384640001ND
2018-04-0535384640002ND
2018-07-2335407043002ND
2018-07-2335407043001ND
2018-07-2335407043001ND
2018-07-2335407043002ND
2018-10-22354265210010.290 ppb
2018-10-22354265210020.370 ppb
2018-10-22354265210010.290 ppb
2018-10-22354265210020.370 ppb
2019-01-1635443223002ND
2019-01-1635443223001ND
2019-01-1635443223001ND
2019-01-1635443223002ND
2019-04-10354615300020.600 ppb
2019-04-10354615300020.600 ppb
2019-04-10354615300010.620 ppb
2019-04-10354615300010.620 ppb
2019-07-1035481745002ND
2019-07-1035481745001ND
2019-07-1035481745001ND
2019-07-1035481745002ND
2019-10-0335502847001ND
2019-10-0335502847002ND
2019-10-0335502847001ND
2019-10-0335502847002ND