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EWG's Tap Water Database — 2021 UPDATE

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Bromomethane

City of Napa

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND60ND
2014ND20ND
2015ND30ND
2016ND20ND
2017ND30ND
2018ND20ND
2019ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2013-01-091301175-001END
2013-04-031304110-001END
2013-07-101307419-001END
2013-07-101307416-001END
2013-10-031310113-001END
2013-10-031310111-001END
2014-07-091233-006-1245ND
2014-07-091233-007-0925ND
2015-07-211233-005-1120ND
2015-07-211233-006-1415ND
2015-07-211233-007-0940ND
2016-07-271233-006-1545ND
2016-07-271233-007-1245ND
2017-07-201233-006-1330ND
2017-07-201233-007-1050ND
2017-09-131233-005-0840ND
2018-07-111233-007-1200ND
2018-07-111233-006-1015ND
2019-07-101233-007-0830ND
2019-07-101233-006-1200ND