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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Whittier 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

 

181

Samples

0

Samples exceeding legal limit (MCL)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20145.15 ppb3416ND - 16.0 ppb
20156.37 ppb3316ND - 19.0 ppb
20169.12 ppb2816ND - 36.0 ppb
20176.83 ppb3316ND - 19.0 ppb
20186.83 ppb3116ND - 19.0 ppb
201911.4 ppb2216ND - 23.0 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
2014-01-079588-022-1000ND
2014-01-249588-800-124511.0 ppb
2014-01-249588-801-120012.0 ppb
2014-01-249588-802-121013.0 ppb
2014-01-249588-803-123014.0 ppb
2014-02-119588-022-0830ND
2014-03-119588-022-1100ND
2014-04-099588-022-1000ND
2014-04-299588-800-112016.0 ppb
2014-04-299588-801-104015.0 ppb
2014-04-299588-802-105515.0 ppb
2014-04-299588-803-110514.0 ppb
2014-05-209588-022-0830ND
2014-05-289588-003-0900ND
2014-05-289588-009-1000ND
2014-06-109588-022-1000ND
2014-06-119588-008-0910ND
2014-06-119588-010-0920ND
2014-06-119588-011-0950ND
2014-07-089588-022-0900ND
2014-07-319588-800-14354.00 ppb
2014-07-319588-801-14553.40 ppb
2014-07-319588-802-15109.70 ppb
2014-07-319588-803-153514.0 ppb
2014-08-079588-022-1000ND
2014-09-049588-013-1000ND
2014-09-179588-022-0900ND
2014-10-169588-022-0930ND
2014-10-309588-800-11105.90 ppb
2014-10-309588-801-10305.20 ppb
2014-10-309588-802-104011.0 ppb
2014-10-309588-803-105512.0 ppb
2014-11-109588-022-0830ND
2014-12-179588-022-0900ND
2015-01-149588-022-0830ND
2015-01-279588-800-10257.90 ppb
2015-01-279588-801-09507.00 ppb
2015-01-279588-802-10009.90 ppb
2015-01-279588-803-101011.0 ppb
2015-02-099588-022-1000ND
2015-03-109588-022-0800ND
2015-04-159588-022-0820ND
2015-04-279588-800-100517.0 ppb
2015-04-279588-801-093014.0 ppb
2015-04-279588-802-094017.0 ppb
2015-04-279588-803-095519.0 ppb
2015-05-069588-022-0830ND
2015-05-199588-009-0800ND
2015-06-109588-008-0950ND
2015-06-109588-010-1010ND
2015-06-109588-011-1000ND
2015-06-249588-022-0930ND
2015-07-149588-022-0800ND
2015-07-309588-800-103514.0 ppb
2015-07-309588-801-095511.0 ppb
2015-07-309588-802-100516.0 ppb
2015-07-309588-803-102017.0 ppb
2015-08-119588-022-0850ND
2015-09-109588-013-0930ND
2015-09-169588-022-1000ND
2015-10-199588-022-0800ND
2015-10-279588-800-10206.50 ppb
2015-10-279588-801-09509.00 ppb
2015-10-279588-802-100018.0 ppb
2015-10-279588-803-101016.0 ppb
2015-11-109588-022-0830ND
2015-12-029588-022-0900ND
2016-01-139588-022-0930ND
2016-01-279588-800-101015.0 ppb
2016-01-279588-801-093519.0 ppb
2016-01-279588-802-094517.0 ppb
2016-01-279588-803-095521.0 ppb
2016-02-099588-022-0800ND
2016-03-089588-022-1117ND
2016-04-269588-800-105012.0 ppb
2016-04-269588-801-101512.0 ppb
2016-04-269588-802-102512.0 ppb
2016-04-269588-803-103517.0 ppb
2016-05-119588-009-0845ND
2016-06-149588-008-0920ND
2016-06-149588-010-0925ND
2016-06-149588-011-0930ND
2016-07-279588-800-11356.30 ppb
2016-07-279588-801-105510.00 ppb
2016-07-279588-802-110512.0 ppb
2016-07-279588-803-112011.0 ppb
2016-09-139588-013-0935ND
2016-09-209588-022-1000ND
2016-10-109588-022-0905ND
2016-10-279588-800-110536.0 ppb
2016-10-279588-801-104015.0 ppb
2016-10-279588-802-105018.0 ppb
2016-10-279588-803-105522.0 ppb
2016-11-219588-022-0942ND
2016-12-069588-022-0830ND
2017-01-249588-022-1236ND
2017-01-269588-800-102013.0 ppb
2017-01-269588-801-094514.0 ppb
2017-01-269588-802-095516.0 ppb
2017-01-269588-803-100519.0 ppb
2017-02-149588-022-1040ND
2017-03-139588-022-0945ND
2017-04-119588-022-1038ND
2017-04-269588-800-101513.0 ppb
2017-04-269588-801-094011.0 ppb
2017-04-269588-802-095014.0 ppb
2017-04-269588-803-100017.0 ppb
2017-05-019588-022-0845ND
2017-05-099588-009-0842ND
2017-06-069588-022-0730ND
2017-06-149588-008-0910ND
2017-06-149588-010-0905ND
2017-06-149588-011-0955ND
2017-07-179588-022-0820ND
2017-07-269588-800-115013.0 ppb
2017-07-269588-801-113015.0 ppb
2017-07-269588-802-105516.0 ppb
2017-07-269588-803-111519.0 ppb
2017-08-159588-022-0740ND
2017-09-129588-013-0925ND
2017-09-189588-022-0822ND
2017-10-169588-022-0811ND
2017-10-269588-800-102511.0 ppb
2017-10-269588-801-09509.50 ppb
2017-10-269588-802-100012.0 ppb
2017-10-269588-803-101013.0 ppb
2017-11-069588-022-0750ND
2017-12-059588-022-0807ND
2018-01-229588-022-0752ND
2018-01-299588-800-095013.0 ppb
2018-01-299588-801-094010.00 ppb
2018-01-299588-802-093017.0 ppb
2018-01-299588-803-092019.0 ppb
2018-02-209588-022-0953ND
2018-03-199588-022-0815ND
2018-04-099588-022-0928ND
2018-04-269588-800-093517.0 ppb
2018-04-269588-801-092013.0 ppb
2018-04-269588-802-091019.0 ppb
2018-04-269588-803-090019.0 ppb
2018-06-139588-008-0905ND
2018-06-139588-009-0955ND
2018-06-139588-010-0915ND
2018-06-139588-011-0855ND
2018-07-109588-022-0900ND
2018-07-239588-022-1130ND
2018-07-269588-800-10005.70 ppb
2018-07-269588-801-09459.70 ppb
2018-07-269588-802-093511.0 ppb
2018-07-269588-803-092513.0 ppb
2018-08-079588-022-1000ND
2018-09-189588-013-1115ND
2018-09-249588-022-0838ND
2018-10-159588-022-0924ND
2018-10-259588-800-104512.0 ppb
2018-10-259588-801-10359.30 ppb
2018-10-259588-802-102011.0 ppb
2018-10-259588-803-101013.0 ppb
2018-11-059588-022-0836ND
2019-01-289588-800-093020.0 ppb
2019-01-289588-801-092018.0 ppb
2019-01-289588-802-091021.0 ppb
2019-01-289588-803-085523.0 ppb
2019-04-269588-800-103016.0 ppb
2019-04-269588-801-100017.0 ppb
2019-04-269588-802-101018.0 ppb
2019-04-269588-803-102022.0 ppb
2019-05-089588-009-0810ND
2019-06-119588-008-0900ND
2019-06-119588-009-0950ND
2019-06-119588-010-0845ND
2019-06-119588-011-0905ND
2019-07-269588-800-10409.30 ppb
2019-07-269588-801-09558.90 ppb
2019-07-269588-802-100511.0 ppb
2019-07-269588-803-102011.0 ppb
2019-09-249588-013-1055ND
2019-10-289588-800-104512.0 ppb
2019-10-289588-801-100011.0 ppb
2019-10-289588-802-101515.0 ppb
2019-10-289588-803-103017.0 ppb