Know Your Environment. Protect Your Health.

Alachlor (Lasso)

The Mountain Water System

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

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND20ND
2020ND40ND
2021ND50ND
2022ND50ND
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
2019-02-26680-165152-1ND
2019-02-26680-165148-1ND
2020-03-18481645ND
2020-05-28487290ND
2020-09-02497125ND
2020-12-15506069ND
2021-03-161034274-01ND
2021-05-111053573-01ND
2021-08-181085286-01ND
2021-09-24810-3688-1ND
2021-12-28810-11017-1ND
2022-03-14810-18538-1ND
2022-05-23FWE0084-01ND
2022-09-20FWJ0174ND
2022-09-20FWH0472-01ND
2022-12-13FWJ0174-01ND
2023-02-16FXB0443-01ND
2023-04-05FXC0477ND
2023-08-03FXF0558ND
2023-11-1568353501ND