Know Your Environment. Protect Your Health.

Alachlor (Lasso)

City of West Richland

NOTE: City of West Richland purchases water from City of Richland which is required to test for alachlor (lasso). Sample information shown below was taken by City of Richland.

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

 

3

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND30ND
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

NOTE: City of West Richland purchases water from City of Richland which is required to test for alachlor (lasso). Sample information shown below was taken by City of Richland.

Date Lab ID Result
2018-05-09ND
2019-06-04ND
2019-09-03ND