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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of West University Place

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

 

106

Samples

0

Samples exceeding legal limit (MCL)

69

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20143.72 ppb16161.10 ppb - 28.6 ppb
20150.694 ppb1810ND - 1.50 ppb
20160.422 ppb184ND - 2.10 ppb
20171.08 ppb1814ND - 2.00 ppb
20181.28 ppb1815ND - 1.90 ppb
20190.839 ppb1810ND - 2.20 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
2014-02-12AC424241.20 ppb
2014-02-12AC424231.90 ppb
2014-02-12AC424252.50 ppb
2014-02-12AC424281.90 ppb
2014-04-07AC495942.20 ppb
2014-04-07AC496252.20 ppb
2014-04-07AC495842.40 ppb
2014-06-16AC5695128.6 ppb
2014-08-11AC628981.30 ppb
2014-08-11AC629351.10 ppb
2014-08-11AC628991.30 ppb
2014-08-11AC629361.10 ppb
2014-12-17AC752752.80 ppb
2014-12-17AC752973.00 ppb
2014-12-17AC752803.40 ppb
2014-12-17AC752762.60 ppb
2015-01-15AC764861.20 ppb
2015-01-15AC764421.50 ppb
2015-01-15AC764311.000 ppb
2015-01-15AC764301.20 ppb
2015-01-15AC764361.20 ppb
2015-04-28AC89695ND
2015-04-28AC89689ND
2015-04-28AC89687ND
2015-04-28AC89694ND
2015-06-02AC94152ND
2015-08-04AD022851.40 ppb
2015-08-04AD023251.10 ppb
2015-08-04AD022901.30 ppb
2015-08-04AD022841.30 ppb
2015-11-03AD12348ND
2015-11-03AD12349ND
2015-11-03AD12347ND
2015-11-03AD123281.30 ppb
2016-01-12AD17526ND
2016-01-12AD17570ND
2016-01-12AD17556ND
2016-01-12AD17561ND
2016-04-06AD32079ND
2016-04-06AD32087ND
2016-04-06AD32030ND
2016-04-06AD32026ND
2016-04-06AD32057ND
2016-04-06AD32028ND
2016-07-07AD43306ND
2016-07-07AD43307ND
2016-07-07AD43283ND
2016-07-07AD43305ND
2016-10-04AD524661.60 ppb
2016-10-04AD524612.10 ppb
2016-10-04AD524391.80 ppb
2016-10-04AD524682.10 ppb
2017-01-23AD660981.20 ppb
2017-01-23AD661062.00 ppb
2017-01-23AD660191.10 ppb
2017-01-23AD660241.20 ppb
2017-01-23AD660551.20 ppb
2017-01-23AD660541.50 ppb
2017-05-09AD832771.40 ppb
2017-05-09AD832821.70 ppb
2017-05-09AD832791.40 ppb
2017-05-09AD832781.50 ppb
2017-07-24AD903141.20 ppb
2017-07-24AD902981.40 ppb
2017-07-24AD903161.20 ppb
2017-07-24AD903171.40 ppb
2017-11-28AE05914ND
2017-11-28AE05916ND
2017-11-28AE05915ND
2017-11-28AE05913ND
2018-01-29AE110601.60 ppb
2018-01-29AE110641.60 ppb
2018-01-29AE109061.60 ppb
2018-01-29AE109081.50 ppb
2018-01-29AE109111.70 ppb
2018-01-29AE109101.70 ppb
2018-04-09AE21636ND
2018-04-09AE21637ND
2018-04-09AE21660ND
2018-04-09AE216411.000 ppb
2018-07-02AE321661.20 ppb
2018-07-02AE321681.30 ppb
2018-07-02AE321691.20 ppb
2018-07-02AE321651.30 ppb
2018-10-22AE441101.90 ppb
2018-10-22AE441031.80 ppb
2018-10-22AE441121.90 ppb
2018-10-22AE441041.80 ppb
2019-01-16AE50190ND
2019-01-16AE50188ND
2019-01-16AE50111ND
2019-01-16AE50112ND
2019-01-16AE50113ND
2019-01-16AE50115ND
2019-04-02AE60838ND
2019-04-02AE608461.000 ppb
2019-04-02AE60843ND
2019-04-02AE608601.000 ppb
2019-07-10AE738552.00 ppb
2019-07-10AE738582.20 ppb
2019-07-10AE738542.20 ppb
2019-07-10AE738572.20 ppb
2019-10-22AE871961.000 ppb
2019-10-22AE871921.20 ppb
2019-10-22AE871971.10 ppb
2019-10-22AE871901.20 ppb