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EWG's Tap Water Database — 2021 UPDATE

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Bromomethane

Rincon Del Diablo MWD(ID-1)

NOTE: Rincon Del Diablo MWD(ID-1) purchases water from San Diego County Water Authority which is required to test for bromomethane. Sample information shown below was taken by San Diego County Water Authority.

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND50ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND30ND

ppb = parts per billion

All test results

NOTE: Rincon Del Diablo MWD(ID-1) purchases water from San Diego County Water Authority which is required to test for bromomethane. Sample information shown below was taken by San Diego County Water Authority.

Date Lab ID Result
2014-02-059590-003-1102ND
2014-04-099590-003-1424ND
2014-07-249590-003-1229ND
2014-12-169590-003-1143ND
2014-12-299590-001-1010ND
2015-01-059590-003-1039ND
2015-04-089590-003-1429ND
2015-08-259590-003-1333ND
2015-10-209590-003-1202ND
2016-02-109590-003-1340ND
2016-06-169590-003-1435ND
2016-08-029590-003-1135ND
2016-11-299590-003-1309ND
2017-03-309590-003-1230ND
2017-06-149590-003-0942ND
2017-07-059590-003-1134ND
2017-10-169590-003-1305ND
2018-01-039590-003-1215ND
2018-04-109590-003-1230ND
2018-09-179590-003-1218ND
2018-10-019590-003-1326ND
2019-06-139590-003-1044ND
2019-09-179590-003-1230ND
2019-12-119590-003-0724ND