Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Alachlor (Lasso)

Upper Eagle Regional WA

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND90ND
2016N/A00N/A
2017ND110ND
2018N/A00N/A
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
2014-02-26ND
2014-02-26ND
2014-02-26ND
2014-03-16ND
2014-04-22ND
2014-06-11ND
2014-08-06ND
2014-08-06ND
2014-08-20ND
2014-10-30ND
2015-05-18ND
2015-05-19ND
2015-06-02ND
2015-06-09ND
2015-07-22ND
2015-10-08ND
2015-10-08ND
2015-10-12ND
2015-11-13ND
2017-05-18ND
2017-05-25ND
2017-06-01ND
2017-06-06ND
2017-06-06ND
2017-06-26ND
2017-07-20ND
2017-07-20ND
2017-07-20ND
2017-07-24ND
2017-07-24ND