Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Bear Valley Joint Authority

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND50ND
2021N/A00N/A
2022N/A00N/A
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-04-248045215-01ND
2018-05-298055386-01ND
2018-07-178074944-01ND
2018-11-278114887-01ND
2019-02-199024042-01ND
2019-11-139036887-01ND
2020-01-2921798036.00ND
2020-04-1522362551.00ND
2020-04-2922362585.00ND
2020-07-2922949608.00ND
2020-08-1923136908.00ND
2023-06-0829254339.00ND
2023-06-0829254326.00ND
2023-07-1829651649.00ND
2023-07-1829651669.00ND