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EWG's Tap Water Database — 2021 UPDATE

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Alachlor (Lasso)

Walnut Grove Utilities

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
2014N/A00N/A
2015N/A00N/A
2016ND30ND
2017N/A00N/A
2018ND50ND
2019ND130ND

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
2016-12-21380210ND
2016-12-21379879ND
2016-12-21379875ND
2018-06-12680-153971-1ND
2018-06-13680-154051-1ND
2018-07-03680-154927-1ND
2018-07-10680-155198-1ND
2018-10-16680-159419-1ND
2019-02-26680-165155-1ND
2019-02-26680-165150-1ND
2019-03-05680-165490-1ND
2019-03-05680-165488-1ND
2019-03-12680-165969-1ND
2019-04-02680-167063-1ND
2019-04-02680-167058-1ND
2019-04-09680-167502-1ND
2019-04-09680-167500-1ND
2019-07-16680-171850-1ND
2019-07-16680-171849-1ND
2019-08-07680-172766-1ND
2019-08-07680-172772-1ND