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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

Magna Water District

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.

 

100

Samples

0

Samples exceeding legal limit (MCL)

75

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.61 ppb1210ND - 8.62 ppb
20134.53 ppb1614ND - 10.00 ppb
20147.27 ppb1614ND - 18.5 ppb
20156.19 ppb1612ND - 14.5 ppb
20163.09 ppb1710ND - 11.0 ppb
20173.66 ppb2315ND - 14.9 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 Result
2012-05-293.55 ppb
2012-05-294.42 ppb
2012-05-295.59 ppb
2012-05-29ND
2012-08-288.62 ppb
2012-08-285.36 ppb
2012-08-281.02 ppb
2012-08-28ND
2012-11-267.10 ppb
2012-11-263.20 ppb
2012-11-263.10 ppb
2012-11-261.40 ppb
2013-02-267.31 ppb
2013-02-267.82 ppb
2013-02-264.87 ppb
2013-02-260.843 ppb
2013-05-283.48 ppb
2013-05-284.97 ppb
2013-05-282.56 ppb
2013-05-28ND
2013-08-264.47 ppb
2013-08-264.95 ppb
2013-08-263.31 ppb
2013-08-260.562 ppb
2013-11-2510.00 ppb
2013-11-259.98 ppb
2013-11-257.42 ppb
2013-11-25ND
2014-02-258.71 ppb
2014-02-259.95 ppb
2014-02-259.14 ppb
2014-02-251.10 ppb
2014-05-2018.5 ppb
2014-05-2013.4 ppb
2014-05-205.69 ppb
2014-05-20ND
2014-08-256.70 ppb
2014-08-256.19 ppb
2014-08-256.66 ppb
2014-08-25ND
2014-11-189.85 ppb
2014-11-1810.9 ppb
2014-11-188.84 ppb
2014-11-180.738 ppb
2015-02-239.23 ppb
2015-02-249.58 ppb
2015-02-2410.1 ppb
2015-02-240.789 ppb
2015-05-2614.5 ppb
2015-05-269.09 ppb
2015-05-2611.4 ppb
2015-05-26ND
2015-08-265.30 ppb
2015-08-267.14 ppb
2015-08-26ND
2015-08-26ND
2015-11-2310.3 ppb
2015-11-2310.8 ppb
2015-11-230.800 ppb
2015-11-23ND
2016-01-26ND
2016-02-2311.0 ppb
2016-02-230.600 ppb
2016-02-230.900 ppb
2016-02-23ND
2016-05-315.90 ppb
2016-05-315.40 ppb
2016-05-31ND
2016-05-31ND
2016-08-23ND
2016-08-23ND
2016-08-234.55 ppb
2016-08-235.39 ppb
2016-11-216.24 ppb
2016-11-217.71 ppb
2016-11-214.85 ppb
2016-11-21ND
2017-02-16ND
2017-02-226.15 ppb
2017-02-225.88 ppb
2017-02-226.07 ppb
2017-02-221.06 ppb
2017-02-27ND
2017-05-10ND
2017-05-103.00 ppb
2017-05-2212.8 ppb
2017-05-220.510 ppb
2017-05-2214.9 ppb
2017-05-227.57 ppb
2017-07-11ND
2017-08-07ND
2017-08-07ND
2017-08-213.12 ppb
2017-08-213.30 ppb
2017-08-212.73 ppb
2017-08-21ND
2017-11-207.21 ppb
2017-11-205.77 ppb
2017-11-20ND
2017-11-204.10 ppb