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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Sardis Water Association

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.

 

108

Samples

0

Samples exceeding legal limit (MCL)

99

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.95 ppb20201.000 ppb - 17.1 ppb
20153.80 ppb2221ND - 11.3 ppb
20164.34 ppb1615ND - 10.1 ppb
20174.40 ppb16161.20 ppb - 8.40 ppb
20183.09 ppb2218ND - 10.00 ppb
20196.72 ppb1210ND - 15.8 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
2014-01-07140100014025.50 ppb
2014-01-07140100012021.80 ppb
2014-01-07140100013025.00 ppb
2014-01-07140100011021.10 ppb
2014-01-13140160033025.90 ppb
2014-01-13140160030021.10 ppb
2014-01-13140160032022.10 ppb
2014-01-13140160031025.00 ppb
2014-04-02140930066028.10 ppb
2014-04-02140930065022.60 ppb
2014-04-02140930080021.000 ppb
2014-04-02140930067021.90 ppb
2014-07-07141910012021.80 ppb
2014-07-07141910011027.00 ppb
2014-07-07141910008026.70 ppb
2014-07-07141910007023.00 ppb
2014-10-08142820142029.00 ppb
2014-10-081428201400217.1 ppb
2014-10-081428201410211.0 ppb
2014-10-08142820145022.30 ppb
2015-01-07150080170022.40 ppb
2015-01-07150080168023.40 ppb
2015-01-07150080171021.70 ppb
2015-01-07150080169021.40 ppb
2015-04-07150990086021.60 ppb
2015-04-07150990081028.30 ppb
2015-04-07150990079024.50 ppb
2015-04-07150990080022.60 ppb
2015-07-06151890021024.60 ppb
2015-07-06151890023025.80 ppb
2015-07-06151890020021.20 ppb
2015-07-06151890022025.70 ppb
2015-07-22152040052030.762 ppb
2015-07-22152040053030.629 ppb
2015-10-07152810067025.60 ppb
2015-10-07152810065028.70 ppb
2015-10-07152810066024.90 ppb
2015-10-07152810039021.90 ppb
2015-11-161532000060311.3 ppb
2015-11-1615320000709ND
2015-11-16153200007030.203 ppb
2015-11-16153200006096.36 ppb
2016-01-07160080037021.20 ppb
2016-01-07160080036022.00 ppb
2016-01-07160080034021.50 ppb
2016-01-07160080035023.30 ppb
2016-04-0616098002702ND
2016-04-06160980026024.80 ppb
2016-04-06160980039025.10 ppb
2016-04-06160980028022.90 ppb
2016-07-04161890015028.20 ppb
2016-07-04161890012021.20 ppb
2016-07-041618900160210.1 ppb
2016-07-04161890011026.30 ppb
2016-10-05162800173021.80 ppb
2016-10-05162800174024.30 ppb
2016-10-05162800175027.60 ppb
2016-10-05162800176029.20 ppb
2017-01-04170050082023.80 ppb
2017-01-04170050083021.20 ppb
2017-01-04170050084025.40 ppb
2017-01-04170050085024.80 ppb
2017-04-03170960009023.80 ppb
2017-04-03170960008021.40 ppb
2017-04-03170960011026.20 ppb
2017-04-03170960010025.50 ppb
2017-07-03171870140024.70 ppb
2017-07-04171870142024.60 ppb
2017-07-04171870139026.60 ppb
2017-07-04171870141021.40 ppb
2017-10-02172780152025.50 ppb
2017-10-02172780151021.70 ppb
2017-10-02172780150025.40 ppb
2017-10-02172780153028.40 ppb
2018-01-02180040002026.20 ppb
2018-01-02180040015024.10 ppb
2018-01-02180040005021.40 ppb
2018-01-02180040003025.10 ppb
2018-04-02180950147024.40 ppb
2018-04-0218095016002ND
2018-04-02180950148023.80 ppb
2018-04-02180950153023.40 ppb
2018-07-04181860157021.20 ppb
2018-07-041818601600210.00 ppb
2018-07-04181860158026.70 ppb
2018-07-04181860159025.20 ppb
2018-08-07182200037030.508 ppb
2018-08-07182200038030.938 ppb
2018-10-02182770124027.80 ppb
2018-10-02182770122021.70 ppb
2018-10-02182770123024.80 ppb
2018-10-0218277010802ND
2018-10-30183040024030.0686 ppb
2018-10-3018304002509ND
2018-10-3018304002409ND
2018-10-30183040025030.624 ppb
2019-01-08190110038015.20 ppb
2019-01-08190110023017.50 ppb
2019-01-0819011003701ND
2019-01-08190110024014.70 ppb
2019-07-09191920128028.10 ppb
2019-07-091919201250215.8 ppb
2019-07-0919192012902ND
2019-07-09191920130026.50 ppb
2019-10-011927600820213.0 ppb
2019-10-011927600810210.5 ppb
2019-10-01192760080021.50 ppb
2019-10-01192760071027.80 ppb