Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Pierce, City of

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

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND50ND
2021ND40ND
2022ND10ND
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
2018-04-23543502ND
2018-11-19577279ND
2018-11-19577280ND
2019-04-22603976ND
2019-09-09634550ND
2019-10-07638481ND
2020-01-21650644ND
2020-04-06667160ND
2020-05-04668242ND
2020-07-06681482ND
2020-11-09699970ND
2021-04-27727593ND
2021-10-12763938ND
2021-11-01763940ND
2021-11-01763939ND
2022-10-24833718ND
2023-10-16890918ND