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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Indian Hills Water District

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

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND60ND
2017ND60ND
2018ND30ND
2019N/A00N/A

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 Result
2014-01-29ND
2014-07-09ND
2014-11-13ND
2015-02-18ND
2015-08-18ND
2015-11-24ND
2016-08-16ND
2016-10-03ND
2016-10-03ND
2016-10-27ND
2016-12-13ND
2016-12-13ND
2017-02-14ND
2017-05-16ND
2017-05-16ND
2017-06-27ND
2017-08-15ND
2017-11-28ND
2018-02-12ND
2018-04-04ND
2018-07-18ND