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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

Rainbow Municipal WD

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
2014ND10ND
2015ND30ND
20160.218 ppb41ND - 0.870 ppb
2017ND40ND
2018ND40ND
2019ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-10-16B4J1746-01ND
2015-01-13B5A1064-01ND
2015-04-16B5D1683-01ND
2015-07-16B5G1766-01ND