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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Olaa-mountain View

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

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015N/A00N/A
2016N/A00N/A
2017ND20ND
2018ND20ND
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 Lab ID Result
2014-01-22C14-01-0071ND
2014-01-22C14-01-0072ND
2014-04-01C14-04-0109ND
2014-04-16C14-04-0202AND
2014-09-29201409300482ND
2014-11-13201411140476ND
2017-03-14ND
2017-06-19ND
2018-04-18C18-04-0204ND
2018-09-24C18-09-0295AND