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EWG's Tap Water Database — 2021 UPDATE

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Metolachlor

Montara Water and Sanitary District

Metolachlor is a herbicide applied on corn, soybeans and other crops. The EPA has classified metolachlor as a possible human carcinogen.

MORE ABOUT THIS CONTAMINANT

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND40ND
2016ND80ND
2017ND50ND
2018ND50ND
2019ND80ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-275810-001-1140ND
2014-08-275810-014-1020ND
2014-08-275810-003-1000ND
2014-08-275810-011-0900ND
2014-12-015810-011-1350ND
2014-12-085810-014-1030ND
2014-12-085810-001-1110ND
2014-12-085810-003-1110ND
2015-10-199590-031-1050ND
2015-10-199590-030-0850ND
2015-10-199590-032-1015ND
2015-12-235810-015-0925ND
2016-01-285810-011-0930ND
2016-03-145810-015-0850ND
2016-05-195810-010-1030ND
2016-05-195810-008-0950ND
2016-05-315810-012-1000ND
2016-08-245810-010-1100ND
2016-08-245810-012-0945ND
2016-08-245810-008-1015ND
2017-07-205810-003-1120ND
2017-07-205810-001-0930ND
2017-11-085810-001-1105ND
2017-11-085810-014-0920ND
2017-11-085810-003-0940ND
2018-02-085810-014-0845ND
2018-11-135810-015-0840ND
2018-11-155810-030-0900ND
2018-11-155810-031-0815ND
2018-11-155810-032-0835ND
2019-02-125810-015-0935ND
2019-02-195810-030-0940ND
2019-02-195810-031-0910ND
2019-02-195810-032-1000ND
2019-04-165810-010-1020ND
2019-04-165810-008-1045ND
2019-08-055810-010-0920ND
2019-08-055810-008-1050ND