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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Mt Pleasant Water Works

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017ND40ND
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
2014-05-27AD40426ND
2014-05-27AD40433ND
2014-05-27AD40440ND
2014-05-27AD40444ND
2014-05-27AD40459ND
2017-07-133732372ND
2017-07-133732373ND
2017-07-133732374ND
2017-07-133732375ND
2018-07-31AE15927ND
2018-12-13AE22962ND
2019-03-27AE27832ND