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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Lutcher Waterworks

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

 

98

Samples

0

Samples exceeding legal limit (MCL)

70

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.44 ppb1812ND - 2.80 ppb
20152.21 ppb1614ND - 6.90 ppb
20162.50 ppb1612ND - 4.80 ppb
20171.81 ppb1612ND - 3.90 ppb
20180.946 ppb1610ND - 2.30 ppb
20191.06 ppb1610ND - 2.40 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
2014-02-122011640131.50 ppb
2014-02-122011640121.40 ppb
2014-02-122011640131.50 ppb
2014-02-122011640121.40 ppb
2014-02-17AD89144ND
2014-02-17AD89144ND
2014-05-14203925002ND
2014-05-14203925001ND
2014-05-14203925002ND
2014-05-14203925001ND
2014-08-132080210012.40 ppb
2014-08-132080210022.10 ppb
2014-08-132080210022.10 ppb
2014-08-132080210012.40 ppb
2014-11-1220122420012.80 ppb
2014-11-1220122420022.80 ppb
2014-11-1220122420022.80 ppb
2014-11-1220122420012.80 ppb
2015-02-1120159650011.80 ppb
2015-02-1120159650022.20 ppb
2015-02-1120159650022.20 ppb
2015-02-1120159650011.80 ppb
2015-05-1320198950020.770 ppb
2015-05-1320198950010.830 ppb
2015-05-1320198950020.770 ppb
2015-05-1320198950010.830 ppb
2015-08-1220240320021.20 ppb
2015-08-1220240320021.20 ppb
2015-08-122024032001ND
2015-08-122024032001ND
2015-11-1120286180014.00 ppb
2015-11-1120286180026.90 ppb
2015-11-1120286180014.00 ppb
2015-11-1120286180026.90 ppb
2016-02-102032448001ND
2016-02-102032448002ND
2016-02-102032448001ND
2016-02-102032448002ND
2016-05-1120365640021.50 ppb
2016-05-1120365640011.50 ppb
2016-05-1120365640021.50 ppb
2016-05-1120365640011.50 ppb
2016-08-1020410700014.80 ppb
2016-08-1020410700014.80 ppb
2016-08-1020410630014.40 ppb
2016-08-1020410630014.40 ppb
2016-11-0920456270014.00 ppb
2016-11-0920456270014.00 ppb
2016-11-0920456260013.80 ppb
2016-11-0920456260013.80 ppb
2017-02-15352959320070.900 ppb
2017-02-15352959320060.890 ppb
2017-02-15352959320070.900 ppb
2017-02-15352959320060.890 ppb
2017-05-1635312602009ND
2017-05-1635312602009ND
2017-05-1635312602010ND
2017-05-1635312602010ND
2017-08-10353297980043.90 ppb
2017-08-10353297980033.00 ppb
2017-08-10353297980043.90 ppb
2017-08-10353297980033.00 ppb
2017-11-07353468850013.00 ppb
2017-11-07353468850022.80 ppb
2017-11-07353468850013.00 ppb
2017-11-07353468850022.80 ppb
2018-02-08353732970020.570 ppb
2018-02-08353732970020.570 ppb
2018-02-0835373297001ND
2018-02-0835373297001ND
2018-05-0435390330002ND
2018-05-0435390330001ND
2018-05-0435390330001ND
2018-05-0435390330002ND
2018-08-02354085770022.30 ppb
2018-08-02354085770012.20 ppb
2018-08-02354085770022.30 ppb
2018-08-02354085770012.20 ppb
2018-11-01354287930021.30 ppb
2018-11-01354287930011.20 ppb
2018-11-01354287930011.20 ppb
2018-11-01354287930021.30 ppb
2019-02-1235447900002ND
2019-02-1235447900001ND
2019-02-1235447900001ND
2019-02-1235447900002ND
2019-05-14354688800020.840 ppb
2019-05-14354688800020.840 ppb
2019-05-1435468880001ND
2019-05-1435468880001ND
2019-08-13354899960022.30 ppb
2019-08-13354899960012.40 ppb
2019-08-13354899960012.40 ppb
2019-08-13354899960022.30 ppb
2019-11-04355095800011.30 ppb
2019-11-04355095800021.60 ppb
2019-11-04355095800011.30 ppb
2019-11-04355095800021.60 ppb