Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Wallingford Water Department

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

 

11

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
2019ND50ND
2020ND20ND
2021N/A00N/A
2022ND40ND
2023N/A00N/A

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
2019-08-05CD73202-P2ND
2019-08-12CD83465-P2ND
2019-09-16CE10614-P2ND
2019-10-10CE30938-P2ND
2019-11-04CE53371-P2ND
2020-06-08CG08411-P2ND
2020-09-08CG72643AND
2022-04-04CK99720-SOC2ND
2022-04-06CL02035-SOC2ND
2022-08-10CM01617-P2ND
2022-09-06CM23340-P2ND