Know Your Environment. Protect Your Health.

Alachlor (Lasso)

St John Water District 1

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
2019ND40ND
2020ND10ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-05-1435392327001ND
2018-05-1435392327001ND
2018-07-1735405084001ND
2018-07-1735405084001ND
2019-01-2235444040001ND
2019-01-2235444040001ND
2019-07-2535485228001ND
2019-07-2535485228001ND
2020-10-2235587106001ND
2021-01-2835608068001ND
2021-11-1835679380001ND
2022-02-0235694871001ND
2022-09-1535747517001ND
2023-03-2035787603001ND
2023-11-2835844327001ND