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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

Strong Waterworks

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016ND10ND
2017ND10ND
2018ND60ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-1414016010901ND
2015-03-1015071002401ND
2015-07-1415197005801ND
2015-10-1515289010401ND
2016-01-1316015008601ND
2017-02-2717060000401ND
2018-02-2718060003401ND
2018-05-0118123007101ND
2018-09-1718263004401ND
2018-09-1718263004501ND
2018-10-2918305001401ND
2018-11-2618333002201ND
2019-02-1119045009701ND