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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Cerritos - City, 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

 

160

Samples

0

Samples exceeding legal limit (MCL)

115

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND60ND
20152.79 ppb1915ND - 16.9 ppb
20162.18 ppb2114ND - 6.79 ppb
20173.36 ppb3829ND - 8.54 ppb
20183.21 ppb3828ND - 9.75 ppb
20193.09 ppb3829ND - 7.39 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
2014-02-142706-002-0900ND
2014-02-142706-003-0920ND
2014-05-222706-002-0855ND
2014-08-212706-001-0948ND
2014-08-212706-002-0936ND
2014-11-202706-002-0920ND
2015-02-122706-001-1200ND
2015-02-122706-003-1250ND
2015-05-154792-800-09003.31 ppb
2015-05-154792-801-09161.24 ppb
2015-05-154792-802-10002.32 ppb
2015-05-154792-803-10202.59 ppb
2015-05-154792-804-11152.10 ppb
2015-05-154792-805-10562.25 ppb
2015-05-154792-806-0931ND
2015-05-154792-807-08301.99 ppb
2015-06-302706-002-1400ND
2015-08-174792-800-09058.69 ppb
2015-08-174792-801-13021.59 ppb
2015-08-174792-802-10052.43 ppb
2015-08-174792-803-10282.39 ppb
2015-08-174792-804-11452.03 ppb
2015-08-174792-805-11052.25 ppb
2015-08-174792-806-09151.01 ppb
2015-08-174792-807-083516.9 ppb
2016-02-164792-800-09252.29 ppb
2016-02-164792-801-12152.07 ppb
2016-02-164792-802-10063.60 ppb
2016-02-164792-803-10282.76 ppb
2016-02-164792-804-11212.15 ppb
2016-02-164792-805-11002.74 ppb
2016-02-164792-806-0955ND
2016-02-164792-807-08301.93 ppb
2016-02-259588-001-1115ND
2016-02-259588-003-1140ND
2016-05-164792-800-13034.71 ppb
2016-05-164792-801-12225.66 ppb
2016-05-164792-802-11002.40 ppb
2016-05-164792-803-11202.18 ppb
2016-05-164792-804-12004.42 ppb
2016-05-164792-805-11352.16 ppb
2016-05-164792-806-1247ND
2016-05-164792-807-13236.79 ppb
2016-05-259588-002-1340ND
2016-08-299588-002-1200ND
2016-11-289588-002-1130ND
2017-02-174792-800-09268.32 ppb
2017-02-174792-801-10198.41 ppb
2017-02-174792-802-11462.23 ppb
2017-02-174792-803-11174.06 ppb
2017-02-174792-804-10312.46 ppb
2017-02-174792-805-11033.12 ppb
2017-02-174792-806-12302.94 ppb
2017-02-174792-807-13207.37 ppb
2017-02-239588-001-1040ND
2017-02-239588-002-1100ND
2017-02-239588-003-1115ND
2017-05-164792-800-08208.00 ppb
2017-05-164792-801-12056.19 ppb
2017-05-164792-802-10352.02 ppb
2017-05-164792-803-09502.62 ppb
2017-05-164792-804-09202.18 ppb
2017-05-164792-805-09402.04 ppb
2017-05-164792-806-1138ND
2017-05-164792-807-07522.56 ppb
2017-05-249588-002-1110ND
2017-08-174792-800-08306.46 ppb
2017-08-174792-801-12106.47 ppb
2017-08-174792-802-13312.92 ppb
2017-08-174792-803-13002.35 ppb
2017-08-174792-804-12246.11 ppb
2017-08-174792-805-12502.46 ppb
2017-08-174792-806-1145ND
2017-08-174792-807-07556.51 ppb
2017-08-249588-002-1145ND
2017-10-199588-002-1205ND
2017-11-174792-800-08158.05 ppb
2017-11-174792-801-10218.54 ppb
2017-11-174792-802-09002.37 ppb
2017-11-174792-803-09202.52 ppb
2017-11-174792-804-10002.50 ppb
2017-11-174792-805-08403.31 ppb
2017-11-174792-806-0830ND
2017-11-174792-807-08032.46 ppb
2018-02-154792-800-10505.78 ppb
2018-02-154792-801-11159.67 ppb
2018-02-154792-802-12192.08 ppb
2018-02-154792-803-12083.05 ppb
2018-02-154792-804-11492.71 ppb
2018-02-154792-805-12283.21 ppb
2018-02-154792-806-1245ND
2018-02-154792-807-10359.75 ppb
2018-02-229588-001-1110ND
2018-02-229588-002-1210ND
2018-02-229588-003-1130ND
2018-05-214792-800-09127.30 ppb
2018-05-214792-801-09487.00 ppb
2018-05-214792-802-12081.70 ppb
2018-05-214792-803-11352.00 ppb
2018-05-214792-804-10151.70 ppb
2018-05-214792-805-11171.70 ppb
2018-05-214792-806-1246ND
2018-05-214792-807-08406.60 ppb
2018-05-249588-002-1215ND
2018-08-159588-002-0810ND
2018-08-164792-800-09167.26 ppb
2018-08-164792-801-10195.50 ppb
2018-08-164792-802-12302.10 ppb
2018-08-164792-803-12022.60 ppb
2018-08-164792-804-10402.50 ppb
2018-08-164792-805-11392.40 ppb
2018-08-164792-806-1319ND
2018-08-164792-807-08376.60 ppb
2018-11-154792-800-09177.31 ppb
2018-11-154792-801-07352.63 ppb
2018-11-154792-802-12461.98 ppb
2018-11-154792-803-09402.63 ppb
2018-11-154792-804-09402.53 ppb
2018-11-154792-805-12002.87 ppb
2018-11-154792-806-1110ND
2018-11-154792-807-08248.75 ppb
2018-11-279588-002-0820ND
2019-02-139588-001-0755ND
2019-02-139588-002-1005ND
2019-02-139588-003-0835ND
2019-02-214792-800-09355.67 ppb
2019-02-214792-801-10251.91 ppb
2019-02-214792-802-12303.03 ppb
2019-02-214792-803-12002.57 ppb
2019-02-214792-804-10572.17 ppb
2019-02-214792-805-11507.39 ppb
2019-02-214792-806-1242ND
2019-02-214792-807-08054.02 ppb
2019-05-164792-800-09167.04 ppb
2019-05-164792-801-09551.59 ppb
2019-05-164792-802-12142.16 ppb
2019-05-164792-803-11092.15 ppb
2019-05-164792-804-10082.14 ppb
2019-05-164792-805-10572.41 ppb
2019-05-164792-806-1202ND
2019-05-164792-807-08524.57 ppb
2019-05-239588-002-0930ND
2019-08-089588-002-0945ND
2019-08-154792-800-08547.34 ppb
2019-08-154792-801-09256.06 ppb
2019-08-154792-802-11351.88 ppb
2019-08-154792-803-11101.82 ppb
2019-08-154792-804-09352.56 ppb
2019-08-154792-805-10443.32 ppb
2019-08-154792-806-1225ND
2019-08-154792-807-08096.57 ppb
2019-11-079588-002-0935ND
2019-11-144792-800-10037.31 ppb
2019-11-144792-801-13036.56 ppb
2019-11-144792-802-12371.62 ppb
2019-11-144792-803-12171.70 ppb
2019-11-144792-804-11154.97 ppb
2019-11-144792-805-12083.38 ppb
2019-11-144792-806-12257.08 ppb
2019-11-144792-807-13376.25 ppb