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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Manchester Water Works

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
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
2014-02-171402-00335-001ND
2014-05-141405-00444-001ND
2014-08-041408-00056-003ND
2015-08-171508-01335-001ND
2016-08-111608-01474-002ND
2017-08-161708-02234-001ND
2018-08-231808-03298-001ND
2019-08-131908-01820-001ND