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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Brewster, City of

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND10ND
2017ND10ND
2018ND20ND
2019ND10ND

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
2014-09-02184738ND
2014-11-18233368ND
2015-02-11277949ND
2015-05-12331860ND
2016-02-15493408ND
2017-02-06704121ND
2018-02-12906619ND
2018-03-05930768ND
2019-02-101119777ND