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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

South Gate Water Department

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

 

110

Samples

0

Samples exceeding legal limit (MCL)

48

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.0105 ppb191ND - 0.200 ppb
2015ND80ND
20161.65 ppb158ND - 4.50 ppb
20171.43 ppb2314ND - 4.10 ppb
20181.63 ppb2313ND - 6.00 ppb
20191.75 ppb2212ND - 4.30 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-01-139440-800-08070.200 ppb
2014-01-169588-007-1110ND
2014-01-169588-008-1120ND
2014-01-169588-009-1215ND
2014-01-169588-014-1330ND
2014-01-169588-016-1040ND
2014-04-179588-007-1133ND
2014-04-179588-008-1145ND
2014-04-179588-009-1120ND
2014-04-179588-014-1325ND
2014-07-249588-007-1150ND
2014-07-249588-008-1212ND
2014-07-249588-009-1130ND
2014-07-249588-014-1008ND
2014-07-249588-024-1253ND
2014-10-099588-007-1201ND
2014-10-099588-008-1152ND
2014-10-099588-009-1136ND
2014-10-099588-014-1317ND
2015-01-089588-007-1048ND
2015-01-089588-008-1055ND
2015-01-089588-009-1030ND
2015-01-089588-014-1206ND
2015-01-089588-016-0948ND
2015-04-099588-007-1124ND
2015-04-099588-008-1143ND
2015-07-099588-024-1015ND
2016-01-129440-802-07372.17 ppb
2016-01-149588-009-1100ND
2016-01-149588-014-1217ND
2016-01-149588-016-1008ND
2016-04-149588-007-1121ND
2016-06-099588-008-0945ND
2016-07-129440-800-09313.26 ppb
2016-07-129440-801-12411.97 ppb
2016-07-129440-802-07403.85 ppb
2016-07-129440-803-08262.80 ppb
2016-07-149588-024-1058ND
2016-10-119588-800-0838ND
2016-10-119588-801-09042.70 ppb
2016-10-119588-802-07404.50 ppb
2016-10-119588-803-08163.50 ppb
2017-01-119588-800-09421.000 ppb
2017-01-119588-801-11551.60 ppb
2017-01-119588-802-07442.30 ppb
2017-01-119588-803-08351.50 ppb
2017-01-129588-009-1050ND
2017-01-129588-014-1122ND
2017-01-129588-016-1020ND
2017-04-119588-800-07521.70 ppb
2017-04-119588-801-11382.80 ppb
2017-04-119588-802-09274.10 ppb
2017-04-119588-803-08342.90 ppb
2017-05-109588-007-1024ND
2017-05-109588-008-1029ND
2017-07-129588-009-1040ND
2017-07-129588-024-0936ND
2017-07-129588-800-09192.30 ppb
2017-07-129588-801-11321.60 ppb
2017-07-129588-802-0723ND
2017-07-129588-803-08232.90 ppb
2017-10-109588-800-07443.50 ppb
2017-10-109588-801-11212.10 ppb
2017-10-109588-802-0911ND
2017-10-109588-803-08222.70 ppb
2018-01-099588-802-07311.70 ppb
2018-01-109588-014-1109ND
2018-01-109588-016-1039ND
2018-01-109588-800-09065.50 ppb
2018-01-109588-801-10493.50 ppb
2018-01-109588-803-08136.00 ppb
2018-03-299588-009-0857ND
2018-04-109588-800-08303.30 ppb
2018-04-109588-801-12243.00 ppb
2018-04-109588-802-1029ND
2018-04-109588-803-09162.40 ppb
2018-04-259588-007-1004ND
2018-04-259588-008-1020ND
2018-04-259588-009-0940ND
2018-07-109588-800-1011ND
2018-07-109588-801-12542.30 ppb
2018-07-109588-802-0742ND
2018-07-109588-803-08342.60 ppb
2018-07-239588-024-0912ND
2018-10-099588-800-07461.20 ppb
2018-10-099588-801-12381.60 ppb
2018-10-099588-802-11092.30 ppb
2018-10-099588-803-10202.10 ppb
2019-01-099588-800-09304.20 ppb
2019-01-099588-801-11312.40 ppb
2019-01-099588-802-0732ND
2019-01-099588-803-08263.30 ppb
2019-01-169588-014-0846ND
2019-01-169588-016-1024ND
2019-04-099588-800-07484.30 ppb
2019-04-099588-801-10591.80 ppb
2019-04-099588-802-0918ND
2019-04-099588-803-08303.00 ppb
2019-04-109588-007-1005ND
2019-04-109588-009-1145ND
2019-07-099588-800-07523.90 ppb
2019-07-099588-801-11133.00 ppb
2019-07-099588-802-1307ND
2019-07-099588-803-08292.90 ppb
2019-08-149588-008-1110ND
2019-10-089588-800-07463.40 ppb
2019-10-089588-801-11052.80 ppb
2019-10-089588-802-0911ND
2019-10-089588-803-08253.50 ppb
2019-11-209588-008-1045ND