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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

Cal American Water Company

Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND20ND
20140.0400 ppb21ND - 0.0800 ppb
20150.111 ppb91ND - 1.000 ppb
20161.01 ppb86ND - 1.90 ppb
20173.03 ppb84ND - 8.90 ppb
20180.563 ppb83ND - 1.60 ppb
20190.614 ppb74ND - 1.50 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-1823393001ND
2013-12-1824213501ND
2014-03-12250038010.0800 ppb
2014-06-1725832201ND