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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

New Orleans Algiers Water Works

Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.

MORE ABOUT THIS CONTAMINANT

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND20ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for alachlor, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-04AD88744ND
2014-02-04AD88744ND
2014-10-22AD98836ND
2014-10-22AD98836ND
2015-03-1635179807001ND
2015-03-1635179807001ND
2015-10-1435212328004ND
2015-10-1435212328004ND
2016-01-2735226999001ND
2016-01-2735226999001ND
2016-12-1335283615002ND
2016-12-1335283615002ND
2017-02-2235296827001ND
2017-02-2235296827001ND
2018-04-1735386954004ND
2018-04-1735386954004ND
2018-10-0235421764001ND
2018-10-0235421764001ND
2019-02-0535446734001ND
2019-02-0535446734001ND
2019-08-1435490420001ND
2019-08-1435490420001ND