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EWG's Tap Water Database — 2021 UPDATE

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Bromomethane

Swansea Water District

Bromomethane, or methyl bromide, is a pesticide fumigant that was banned because it depletes the ozone layer.

MORE ABOUT THIS CONTAMINANT

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND200ND
2016ND60ND
2017ND60ND
2018ND50ND
2019ND50ND

ppb = parts per billion

All test results

Date Result
2014-03-10ND
2014-03-10ND
2014-03-24ND
2014-10-21ND
2014-10-21ND
2014-10-21ND
2015-01-21ND
2015-01-21ND
2015-02-10ND
2015-02-10ND
2015-02-28ND
2015-02-28ND
2015-02-28ND
2015-05-21ND
2015-05-21ND
2015-08-12ND
2015-08-12ND
2015-08-13ND
2015-08-13ND
2015-08-18ND
2015-10-09ND
2015-10-09ND
2015-10-09ND
2015-10-09ND
2015-11-12ND
2015-11-12ND
2016-01-12ND
2016-03-08ND
2016-10-27ND
2016-10-27ND
2016-10-27ND
2016-10-27ND
2017-03-20ND
2017-03-20ND
2017-10-18ND
2017-10-18ND
2017-10-18ND
2017-11-14ND
2018-01-18ND
2018-03-19ND
2018-12-10ND
2018-12-10ND
2018-12-10ND
2019-03-14ND
2019-03-14ND
2019-12-12ND
2019-12-12ND
2019-12-12ND