Know Your Environment. Protect Your Health.

Alachlor (Lasso)

College Place Water Department

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND40ND
2023ND30ND

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
2018-06-25ND
2019-09-17ND
2022-05-314364682ND
2022-08-224364685ND
2022-08-224364686ND
2022-11-014373087ND
2023-02-064411984ND
2023-08-294512981ND
2023-12-124560258ND