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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Bellflower - Somerset MWC

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

 

138

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0458 ppb241ND - 1.10 ppb
2015ND230ND
20160.123 ppb222ND - 1.60 ppb
2017ND230ND
2018ND230ND
2019ND230ND

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
2014-01-283761-800-10111.10 ppb
2014-01-283761-801-1041ND
2014-01-283761-802-0806ND
2014-01-283761-803-0830ND
2014-04-149588-022-1046ND
2014-04-149588-026-1100ND
2014-04-223761-800-0911ND
2014-04-223761-801-1025ND
2014-04-223761-802-0921ND
2014-04-223761-803-0938ND
2014-07-153761-800-0645ND
2014-07-153761-801-0906ND
2014-07-153761-802-0856ND
2014-07-153761-803-0845ND
2014-07-239588-008-1240ND
2014-07-239588-011-1400ND
2014-07-239588-021-1334ND
2014-07-239588-027-1314ND
2014-07-239588-029-1100ND
2014-10-143761-800-0951ND
2014-10-143761-801-0926ND
2014-10-143761-802-0838ND
2014-10-143761-803-0852ND
2014-10-229588-009-1113ND
2015-01-133761-800-0840ND
2015-01-133761-801-0850ND
2015-01-133761-802-0804ND
2015-01-133761-803-0758ND
2015-04-143761-800-0700ND
2015-04-143761-801-0645ND
2015-04-143761-802-0631ND
2015-04-143761-803-0625ND
2015-04-159588-022-0936ND
2015-04-159588-026-1026ND
2015-07-089588-008-1030ND
2015-07-089588-021-1100ND
2015-07-089588-027-1046ND
2015-07-109588-029-1014ND
2015-07-143761-800-0842ND
2015-07-143761-801-0849ND
2015-07-143761-802-0924ND
2015-07-143761-803-0903ND
2015-10-193761-800-1409ND
2015-10-193761-801-1350ND
2015-10-193761-802-1420ND
2015-10-193761-803-1435ND
2015-10-279588-009-0936ND
2016-01-193761-800-08481.60 ppb
2016-01-193761-801-0910ND
2016-01-193761-802-0800ND
2016-01-193761-803-0810ND
2016-04-123761-800-0751ND
2016-04-123761-801-0824ND
2016-04-123761-802-1115ND
2016-04-123761-803-0901ND
2016-06-179588-022-0935ND
2016-06-179588-026-1122ND
2016-07-149588-008-1025ND
2016-07-149588-021-1100ND
2016-07-149588-029-0940ND
2016-07-193761-800-07571.10 ppb
2016-07-193761-801-0812ND
2016-07-193761-802-0725ND
2016-07-193761-803-0841ND
2016-10-109588-009-1044ND
2016-10-183761-800-0858ND
2016-10-183761-801-0913ND
2016-10-183761-802-0946ND
2016-10-183761-803-0958ND
2017-01-173761-800-0822ND
2017-01-173761-801-0807ND
2017-01-173761-802-0714ND
2017-01-173761-803-0901ND
2017-04-113761-800-1135ND
2017-04-113761-801-0746ND
2017-04-113761-802-0823ND
2017-04-113761-803-0842ND
2017-05-099588-022-1015ND
2017-05-099588-026-1120ND
2017-07-119588-021-1050ND
2017-07-119588-029-0930ND
2017-07-113761-800-0800ND
2017-07-113761-801-0745ND
2017-07-113761-802-0815ND
2017-07-113761-803-0830ND
2017-10-033761-800-0759ND
2017-10-033761-801-0741ND
2017-10-033761-802-0827ND
2017-10-033761-803-0906ND
2017-10-199588-008-1020ND
2017-10-199588-009-0940ND
2017-10-199588-027-1005ND
2018-01-083761-800-1105ND
2018-01-083761-801-1116ND
2018-01-083761-802-0852ND
2018-01-083761-803-0925ND
2018-04-103761-800-0936ND
2018-04-103761-801-0945ND
2018-04-103761-802-0823ND
2018-04-103761-803-0854ND
2018-04-169588-022-1012ND
2018-04-169588-026-1044ND
2018-07-103761-800-0805ND
2018-07-103761-801-0823ND
2018-07-103761-802-0841ND
2018-07-103761-803-0904ND
2018-07-269588-021-1035ND
2018-07-269588-029-0913ND
2018-10-093761-800-1134ND
2018-10-093761-801-0903ND
2018-10-093761-802-0749ND
2018-10-093761-803-0810ND
2018-10-299588-008-1000ND
2018-10-299588-009-1045ND
2018-11-139588-027-0950ND
2019-01-083761-800-0940ND
2019-01-083761-801-0922ND
2019-01-083761-802-0720ND
2019-01-083761-803-0750ND
2019-04-093761-800-1030ND
2019-04-093761-801-0700ND
2019-04-093761-802-0730ND
2019-04-093761-803-0815ND
2019-05-089588-022-0935ND
2019-05-089588-026-1025ND
2019-07-093761-800-0705ND
2019-07-093761-801-0712ND
2019-07-093761-802-0730ND
2019-07-093761-803-0805ND
2019-07-319588-021-1015ND
2019-07-319588-029-1025ND
2019-10-083761-800-0730ND
2019-10-083761-801-0755ND
2019-10-083761-802-0810ND
2019-10-083761-803-0835ND
2019-10-179588-008-1120ND
2019-10-179588-009-1008ND
2019-10-179588-027-1045ND