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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

West Cedar Creek MUD

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

 

108

Samples

0

Samples exceeding legal limit (MCL)

56

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.66 ppb18181.000 ppb - 4.93 ppb
20150.849 ppb188ND - 3.50 ppb
20160.667 ppb187ND - 2.52 ppb
20170.348 ppb184ND - 3.15 ppb
20181.11 ppb1812ND - 3.18 ppb
20190.573 ppb187ND - 2.35 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
2014-03-20Q14090720081.30 ppb
2014-03-20Q14090720011.30 ppb
2014-03-20Q14090720021.000 ppb
2014-03-20Q14090720031.40 ppb
2014-06-25Q14239030033.90 ppb
2014-06-25Q14239030042.60 ppb
2014-06-25Q14239030051.50 ppb
2014-06-25Q14239030062.80 ppb
2014-09-24Q14475280022.00 ppb
2014-09-24Q14475280034.93 ppb
2014-09-24Q14475280054.50 ppb
2014-09-24Q14475280063.70 ppb
2014-09-24Q14475280072.60 ppb
2014-09-24Q14475280083.90 ppb
2014-12-22Q14608410013.50 ppb
2014-12-22Q14608410022.50 ppb
2014-12-22Q14608410032.20 ppb
2014-12-22Q14608410042.20 ppb
2015-03-26Q15112760071.000 ppb
2015-03-26Q1511276008ND
2015-03-26Q1511276004ND
2015-03-26Q15112760052.20 ppb
2015-06-25Q1524263001ND
2015-06-25Q1524263002ND
2015-06-25Q1524263003ND
2015-06-25Q1524263004ND
2015-09-25Q15379940063.50 ppb
2015-09-25Q15379940071.58 ppb
2015-09-25Q15379940012.40 ppb
2015-09-25Q15379940021.53 ppb
2015-09-25Q15379940031.50 ppb
2015-09-25Q15379940041.57 ppb
2015-12-14Q1549743005ND
2015-12-14Q1549743006ND
2015-12-14Q1549743007ND
2015-12-14Q1549743008ND
2016-03-02Q1609003017ND
2016-03-02Q1609003018ND
2016-03-02Q1609003019ND
2016-03-02Q1609003020ND
2016-05-26Q1621006001ND
2016-05-26Q1621006002ND
2016-05-26Q1621006003ND
2016-05-26Q1621006004ND
2016-09-08Q16365420012.15 ppb
2016-09-08Q1636542003ND
2016-09-08Q16365420051.60 ppb
2016-09-08Q16365420061.28 ppb
2016-09-08Q1636542007ND
2016-09-08Q16365420081.68 ppb
2016-11-10Q16493900011.72 ppb
2016-11-10Q16493900021.06 ppb
2016-11-10Q1649390003ND
2016-11-10Q16493900042.52 ppb
2017-03-01Q1708733009ND
2017-03-01Q1708733010ND
2017-03-01Q1708733011ND
2017-03-01Q1708733012ND
2017-05-31Q1723096001ND
2017-05-31Q1723096002ND
2017-05-31Q1723096003ND
2017-05-31Q17230960041.04 ppb
2017-08-25Q17389050073.15 ppb
2017-08-25Q1738905003ND
2017-08-25Q1738905004ND
2017-08-25Q1738905001ND
2017-08-25Q1738905008ND
2017-08-25Q1738905005ND
2017-12-04Q1762650001ND
2017-12-04Q1762650002ND
2017-12-04Q17626500031.01 ppb
2017-12-04Q17626500041.07 ppb
2018-02-23Q18077710031.44 ppb
2018-02-23Q18077710011.32 ppb
2018-02-23Q18077710041.28 ppb
2018-02-23Q18077710021.63 ppb
2018-05-25Q18212770011.29 ppb
2018-05-25Q18212770021.12 ppb
2018-05-25Q1821277003ND
2018-05-25Q18212770041.36 ppb
2018-08-22Q18337160103.18 ppb
2018-08-22Q1833716002ND
2018-08-22Q18337160151.99 ppb
2018-08-22Q18337160071.76 ppb
2018-08-22Q18337160081.18 ppb
2018-08-22Q18337160162.39 ppb
2018-12-10Q1850281001ND
2018-12-10Q1850281002ND
2018-12-10Q1850281003ND
2018-12-10Q1850281004ND
2019-01-07Q1900334013ND
2019-01-07Q1900334003ND
2019-01-07Q1900334004ND
2019-01-07Q1900334005ND
2019-04-08Q1914186002ND
2019-04-08Q1914186003ND
2019-04-08Q1914186004ND
2019-04-08Q1914186001ND
2019-09-10Q19633070012.35 ppb
2019-09-10Q1963307003ND
2019-09-10Q1963307005ND
2019-09-10Q19633070061.02 ppb
2019-09-10Q1963307007ND
2019-09-10Q19633070081.03 ppb
2019-12-11Q19797780011.50 ppb
2019-12-11Q19797780021.31 ppb
2019-12-11Q19797780031.10 ppb
2019-12-11Q19797780042.00 ppb