Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Alachlor (Lasso)

Columbia Water Company

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017ND70ND
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-07-142018880001ND
2017-04-0416058728ND
2017-04-1116058935ND
2017-04-1816058963ND
2017-07-1016532009ND
2017-07-1116531996ND
2017-07-2616532016ND
2017-08-1116692204ND