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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Millersview-doole Water Supply Corporation

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

48

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.250 ppb41ND - 1.000 ppb
20132.28 ppb53ND - 7.66 ppb
20143.60 ppb991.70 ppb - 10.00 ppb
201547.8 ppb109ND - 75.6 ppb
201646.9 ppb109ND - 83.4 ppb
201754.5 ppb109ND - 93.9 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2012-05-22AB90783ND
2012-05-22AB907841.000 ppb
2012-05-22AB90781ND
2012-05-22AB90782ND
2013-06-26Q1302971010ND
2013-07-22Q13040830071.26 ppb
2013-11-14Q13135400047.66 ppb
2013-11-21Q13144430042.50 ppb
2013-11-21Q1314443003ND
2014-02-27AC4509110.00 ppb
2014-02-27AC450542.70 ppb
2014-02-27AC450522.40 ppb
2014-04-22AC513681.70 ppb
2014-04-22AC513692.20 ppb
2014-09-17AC673123.30 ppb
2014-09-17AC673344.80 ppb
2014-11-18AC724572.50 ppb
2014-11-18AC724562.80 ppb
2015-02-03AC7899333.7 ppb
2015-02-03AC7900244.3 ppb
2015-05-19AC92583ND
2015-05-19AC9255455.3 ppb
2015-05-19AC9255355.9 ppb
2015-05-19AC9257515.0 ppb
2015-09-28AD0887375.6 ppb
2015-09-28AD0887268.5 ppb
2015-11-03AD1237859.8 ppb
2015-11-03AD1238069.7 ppb
2016-02-17AD2428248.7 ppb
2016-02-17AD2425460.7 ppb
2016-02-17AD2430320.0 ppb
2016-02-17AD24301ND
2016-05-18AD3724764.9 ppb
2016-05-18AD3724673.7 ppb
2016-07-21AD4521368.9 ppb
2016-09-14AD4962283.4 ppb
2016-11-30AD5981425.1 ppb
2016-11-30AD5981523.7 ppb
2017-02-23Q170782400242.1 ppb
2017-02-23Q170782400143.3 ppb
2017-03-01Q1708974002ND
2017-05-09Q171908400266.8 ppb
2017-05-09Q171908400173.3 ppb
2017-05-17Q172017200220.9 ppb
2017-07-26Q173119600267.2 ppb
2017-07-26Q173119600155.3 ppb
2017-11-01Q175635700293.9 ppb
2017-11-01Q175635700182.3 ppb