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EWG's Tap Water Database — 2021 UPDATE

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Bromochloromethane

City of Great Falls

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND10ND
2014ND50ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2013-12-11A3K1664-01AND
2014-03-18A4C0569-01AND
2014-05-05B14050434-001CND
2014-06-16A4C2308-01AND
2014-08-05B14080466-001CND
2014-09-15A4I0141-01AND
2015-06-02B15060379-001BND
2016-06-13B16061189-001AND
2017-06-06B17060662-001AND
2018-01-24B18011760-001FND
2019-02-11B19020678-001FND