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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Grain Valley

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.

 

58

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.00 ppb128ND - 2.07 ppb
20130.679 ppb169ND - 2.60 ppb
20141.92 ppb2017ND - 4.12 ppb
20150.747 ppb64ND - 1.44 ppb
20160.375 ppb21ND - 0.750 ppb
20170.800 ppb220.540 ppb - 1.06 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
2012-06-27AB751751.33 ppb
2012-06-27AB75176ND
2012-06-27AB75177ND
2012-06-27AB751781.50 ppb
2012-10-02AB833001.90 ppb
2012-10-02AB832991.55 ppb
2012-10-02AB832981.36 ppb
2012-10-02AB832972.07 ppb
2012-12-10AB87545ND
2012-12-10AB875441.21 ppb
2012-12-10AB87546ND
2012-12-10AB875471.12 ppb
2013-03-25AB933042.16 ppb
2013-03-25AB93303ND
2013-03-25AB933020.640 ppb
2013-03-25AB933012.60 ppb
2013-06-24AC01373ND
2013-06-24AC01372ND
2013-06-24AC01371ND
2013-06-24AC013700.510 ppb
2013-09-16AC111091.29 ppb
2013-09-16AC111101.13 ppb
2013-09-16AC11111ND
2013-09-16AC111121.40 ppb
2013-12-11AC159070.580 ppb
2013-12-11AC15906ND
2013-12-11AC159050.560 ppb
2013-12-11AC15904ND
2014-04-07AC198581.28 ppb
2014-04-07AC19857ND
2014-04-07AC198560.810 ppb
2014-04-07AC198551.20 ppb
2014-06-12AC284902.70 ppb
2014-06-12AC284912.84 ppb
2014-06-12AC284892.88 ppb
2014-06-12AC284883.09 ppb
2014-06-12AC284871.07 ppb
2014-06-12AC284853.28 ppb
2014-06-12AC284843.53 ppb
2014-06-12AC284861.08 ppb
2014-09-18AC355594.12 ppb
2014-09-18AC355602.40 ppb
2014-09-18AC35561ND
2014-09-18AC355623.87 ppb
2014-12-16AC394551.24 ppb
2014-12-16AC394571.46 ppb
2014-12-16AC39456ND
2014-12-16AC394541.49 ppb
2015-03-13AC435341.37 ppb
2015-03-13AC43536ND
2015-03-13AC435350.570 ppb
2015-03-13AC435371.44 ppb
2015-06-10AC511501.10 ppb
2015-06-10AC51151ND
2016-06-09AC74805ND
2016-06-09AC748040.750 ppb
2017-06-09AC983951.06 ppb
2017-06-09AC983960.540 ppb