Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Bromomethane

Williams Water Supply

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.550 ppb220.500 ppb - 0.600 ppb
2013N/A00N/A
2014N/A00N/A
20150.867 ppb330.600 ppb - 1.20 ppb
20160.700 ppb220.600 ppb - 0.800 ppb
20170.733 ppb330.700 ppb - 0.800 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2012-05-0819023200.500 ppb
2012-08-1319240220.600 ppb
2015-05-04OE2389351.20 ppb
2015-08-05OE2770660.800 ppb
2015-11-09OE3161600.600 ppb
2016-02-01OE3421770.600 ppb
2016-05-04OE3745400.800 ppb
2017-02-01OE4770120.800 ppb
2017-08-02OE5458010.700 ppb
2017-11-09OE5888680.700 ppb