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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Golden State Water Company (GSWC) - Bell, Bell Gardens

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

 

161

Samples

0

Samples exceeding legal limit (MCL)

78

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.02 ppb2711ND - 4.00 ppb
20150.930 ppb278ND - 4.80 ppb
20160.504 ppb277ND - 2.60 ppb
20170.731 ppb165ND - 2.90 ppb
20182.30 ppb3224ND - 13.0 ppb
20192.94 ppb3223ND - 8.80 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
2014-02-042706-800-11052.80 ppb
2014-02-042706-801-1045ND
2014-02-042706-802-10551.20 ppb
2014-02-042706-803-09502.20 ppb
2014-02-052706-007-1330ND
2014-02-052706-012-0845ND
2014-02-052706-031-0935ND
2014-02-052706-032-0820ND
2014-02-052706-036-1250ND
2014-05-062706-007-0922ND
2014-05-062706-012-1026ND
2014-05-062706-800-10383.20 ppb
2014-05-062706-801-1018ND
2014-05-062706-802-1029ND
2014-05-062706-803-09223.10 ppb
2014-08-052706-800-10574.00 ppb
2014-08-052706-801-1035ND
2014-08-052706-802-10451.30 ppb
2014-08-052706-803-09373.90 ppb
2014-08-062706-007-0915ND
2014-08-062706-012-0957ND
2014-11-042706-800-11121.50 ppb
2014-11-042706-801-1050ND
2014-11-042706-802-1100ND
2014-11-042706-803-09372.60 ppb
2014-11-062706-007-0930ND
2014-11-062706-012-10081.70 ppb
2015-02-032706-012-10151.80 ppb
2015-02-032706-031-1157ND
2015-02-032706-032-0847ND
2015-02-032706-036-1306ND
2015-02-032706-800-10223.80 ppb
2015-02-032706-801-1001ND
2015-02-032706-802-1014ND
2015-02-032706-803-09053.40 ppb
2015-02-042706-007-1003ND
2015-05-052706-800-10453.00 ppb
2015-05-052706-801-1015ND
2015-05-052706-802-1035ND
2015-05-052706-803-09173.70 ppb
2015-05-072706-007-1305ND
2015-05-072706-012-1218ND
2015-08-042706-800-10483.20 ppb
2015-08-042706-801-1018ND
2015-08-042706-802-1036ND
2015-08-042706-803-09204.80 ppb
2015-08-062706-007-1345ND
2015-08-062706-012-09001.40 ppb
2015-11-032706-007-1245ND
2015-11-032706-012-0910ND
2015-11-032706-800-1056ND
2015-11-032706-801-1030ND
2015-11-032706-802-1045ND
2015-11-032706-803-0935ND
2016-02-022706-800-1042ND
2016-02-022706-801-1104ND
2016-02-022706-802-1053ND
2016-02-022706-803-1015ND
2016-02-032706-007-1140ND
2016-02-034790-012-0845ND
2016-02-034790-032-0820ND
2016-03-012706-036-1200ND
2016-05-032706-800-11072.20 ppb
2016-05-032706-801-1003ND
2016-05-032706-802-1022ND
2016-05-032706-803-09062.30 ppb
2016-05-042706-012-1240ND
2016-05-042706-034-1250ND
2016-05-052706-007-1315ND
2016-08-022706-007-1350ND
2016-08-022706-012-08161.10 ppb
2016-08-022706-800-11061.60 ppb
2016-08-022706-801-0956ND
2016-08-022706-802-1010ND
2016-08-022706-803-09001.90 ppb
2016-11-082706-012-1018ND
2016-11-082706-800-09161.90 ppb
2016-11-082706-801-0900ND
2016-11-082706-802-0909ND
2016-11-082706-803-07582.60 ppb
2016-11-092706-007-1123ND
2017-02-079590-800-1109ND
2017-02-079590-801-1011ND
2017-02-079590-802-1026ND
2017-02-079590-803-0915ND
2017-05-029590-800-1029ND
2017-05-029590-801-1008ND
2017-05-029590-802-1021ND
2017-05-029590-803-09112.80 ppb
2017-08-019590-800-10361.80 ppb
2017-08-019590-801-1025ND
2017-08-019590-802-1009ND
2017-08-019590-803-09172.90 ppb
2017-11-079590-800-10432.10 ppb
2017-11-079590-801-1025ND
2017-11-079590-802-1035ND
2017-11-079590-803-09322.10 ppb
2018-02-069590-800-11032.00 ppb
2018-02-069590-801-1052ND
2018-02-069590-802-1032ND
2018-02-069590-803-09042.30 ppb
2018-02-069590-804-09262.10 ppb
2018-02-069590-805-11552.60 ppb
2018-02-069590-806-08211.60 ppb
2018-02-069590-807-08101.30 ppb
2018-05-019590-800-10341.40 ppb
2018-05-019590-801-1009ND
2018-05-019590-802-10251.60 ppb
2018-05-019590-803-08482.20 ppb
2018-05-019590-804-09131.70 ppb
2018-05-019590-805-11321.30 ppb
2018-05-019590-806-08031.50 ppb
2018-05-019590-807-07501.40 ppb
2018-08-089590-800-10211.80 ppb
2018-08-089590-801-0958ND
2018-08-089590-802-100913.0 ppb
2018-08-089590-803-0923ND
2018-08-089590-804-0938ND
2018-08-089590-805-11084.40 ppb
2018-08-089590-806-08544.60 ppb
2018-08-089590-807-09112.40 ppb
2018-11-079590-800-09534.50 ppb
2018-11-079590-801-0926ND
2018-11-079590-802-0940ND
2018-11-079590-803-09166.00 ppb
2018-11-079590-804-09078.10 ppb
2018-11-079590-805-10062.10 ppb
2018-11-079590-806-08532.00 ppb
2018-11-079590-807-08431.70 ppb
2019-02-069590-800-09263.00 ppb
2019-02-069590-801-0854ND
2019-02-069590-802-0915ND
2019-02-069590-803-07316.30 ppb
2019-02-069590-804-07583.50 ppb
2019-02-069590-805-1038ND
2019-02-069590-806-06422.10 ppb
2019-02-069590-807-06301.90 ppb
2019-05-079590-800-10332.80 ppb
2019-05-079590-801-1003ND
2019-05-079590-802-1021ND
2019-05-079590-803-08304.30 ppb
2019-05-079590-804-08567.90 ppb
2019-05-079590-805-11372.90 ppb
2019-05-079590-806-07412.00 ppb
2019-05-079590-807-07258.30 ppb
2019-08-069590-800-11133.70 ppb
2019-08-069590-801-1051ND
2019-08-069590-802-1102ND
2019-08-069590-803-09335.10 ppb
2019-08-069590-804-09576.00 ppb
2019-08-069590-805-12401.20 ppb
2019-08-069590-806-08511.80 ppb
2019-08-069590-807-08371.60 ppb
2019-11-059590-800-11375.50 ppb
2019-11-059590-801-1110ND
2019-11-059590-802-1126ND
2019-11-059590-803-09378.80 ppb
2019-11-059590-804-10053.50 ppb
2019-11-059590-805-12372.90 ppb
2019-11-059590-806-08507.10 ppb
2019-11-059590-807-08351.80 ppb