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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

Chester Metro

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-19AD37356ND
2014-09-15201409180271AMND
2014-12-02201412040303AMND
2015-03-17201503190340AMND
2015-03-19AD53201ND
2015-06-15201506170586AMND
2016-02-11AD70602ND
2017-01-17AD88371ND
2018-02-20AE07960ND
2019-01-22AE24388ND