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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Bentonville Water Utilities

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

 

88

Samples

0

Samples exceeding legal limit (MCL)

61

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.28 ppb168ND - 2.90 ppb
20151.43 ppb12121.10 ppb - 2.00 ppb
20161.39 ppb1612ND - 2.20 ppb
20171.17 ppb1612ND - 2.40 ppb
20181.10 ppb1612ND - 1.80 ppb
20190.750 ppb125ND - 2.10 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
2014-01-3014031001902ND
2014-01-3014031001802ND
2014-01-3014031002002ND
2014-01-3014031001702ND
2014-04-2214114009302ND
2014-04-2214114009602ND
2014-04-2214114009402ND
2014-04-2214114009502ND
2014-07-23142050036022.30 ppb
2014-07-23142050038022.50 ppb
2014-07-23142050035022.30 ppb
2014-07-23142050037022.50 ppb
2014-11-04143100105022.50 ppb
2014-11-04143100106022.90 ppb
2014-11-04143100107022.50 ppb
2014-11-04143100108022.90 ppb
2015-05-06151270052021.30 ppb
2015-05-06151270051021.30 ppb
2015-05-06151270053021.30 ppb
2015-05-06151270050021.30 ppb
2015-08-03152180145021.10 ppb
2015-08-03152180144021.10 ppb
2015-08-03152180143021.10 ppb
2015-08-03152180112021.10 ppb
2015-10-28153030060022.00 ppb
2015-10-28153030063021.80 ppb
2015-10-28153030062021.90 ppb
2015-10-28153030061021.80 ppb
2016-01-2616029009202ND
2016-01-2616029009102ND
2016-01-2616029009002ND
2016-01-2616029009302ND
2016-05-03161260142021.50 ppb
2016-05-03161260139021.80 ppb
2016-05-03161260140021.60 ppb
2016-05-03161260141021.70 ppb
2016-08-03162170086021.70 ppb
2016-08-03162170085021.90 ppb
2016-08-03162170084021.80 ppb
2016-08-03162170087021.70 ppb
2016-11-01163090007022.10 ppb
2016-11-01163090009022.20 ppb
2016-11-01163090006022.00 ppb
2016-11-01163090008022.20 ppb
2017-01-25170270053022.00 ppb
2017-01-25170270052022.10 ppb
2017-01-25170270051022.30 ppb
2017-01-25170270050022.40 ppb
2017-04-18171100086021.10 ppb
2017-04-18171100087021.10 ppb
2017-04-18171100089021.10 ppb
2017-04-18171100088021.10 ppb
2017-07-2017202004802ND
2017-07-2017202005002ND
2017-07-2017202005102ND
2017-07-2017202004902ND
2017-10-19172930008021.40 ppb
2017-10-19172930050021.40 ppb
2017-10-19172930007021.40 ppb
2017-10-19172930009021.30 ppb
2018-01-22180250072021.30 ppb
2018-01-22180250074021.30 ppb
2018-01-22180250071021.50 ppb
2018-01-22180250073021.40 ppb
2018-04-2318116009502ND
2018-04-2318116009602ND
2018-04-2318116009802ND
2018-04-2318116009702ND
2018-07-24182070071021.40 ppb
2018-07-24182070070021.40 ppb
2018-07-24182070068021.30 ppb
2018-07-24182070069021.40 ppb
2018-10-22182980133021.50 ppb
2018-10-22182980130021.70 ppb
2018-10-22182980131021.80 ppb
2018-10-22182980132021.60 ppb
2019-01-2219025002802ND
2019-01-2219025003002ND
2019-01-2219025002702ND
2019-01-2219025002902ND
2019-04-1619109002802ND
2019-04-1619109003002ND
2019-04-16191090029021.000 ppb
2019-04-1619109002702ND
2019-07-17191990101022.10 ppb
2019-07-17191990099021.90 ppb
2019-07-17191990102022.00 ppb
2019-07-17191990100022.00 ppb