Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Monson Water System

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

 

7

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
2019ND40ND
2020ND20ND
2021N/A00N/A
2022N/A00N/A
2023ND10ND

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
2019-03-29CA5403212_001_001-201903290920ND
2019-06-20CA5403212_001_001-201906201220ND
2019-09-06CA5403212_001_001-201909061145ND
2019-12-17CA5403212_001_001-201912171420ND
2020-04-22CA5403212_001_001-202004221300ND
2020-06-16CA5403212_001_001-202006161330ND
2023-09-11CA5403212_001_001-202309111235ND