Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Purcellville, Town of

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
2018ND50ND
2019ND20ND
2020N/A00N/A
2021ND40ND
2022N/A00N/A
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
2018-03-13E180100343ND
2018-05-30E180303848ND
2018-05-30E180303852ND
2018-08-21E180601977ND
2018-08-28E180601952ND
2019-03-21E190302937ND
2019-03-21E190302946ND
2021-02-24E210100123ND
2021-05-17E210400634ND
2021-05-24E210400642ND
2021-08-18E210601480ND
2023-01-25E221203948ND
2023-06-12E230305122ND
2023-06-12E230305395ND
2023-08-22E230603368ND