Know Your Environment. Protect Your Health.

Alachlor (Lasso)

City of Beaverton

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

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND30ND

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 Beaverton purchases water from Joint Water Commission which is required to test for alachlor (lasso). Sample information shown below was taken by Joint Water Commission.

Date Lab ID Result
2018-02-071809141-SND
2018-11-051884309-SND
2019-04-241928990-SND
2019-11-041981259-SND
2020-04-012021410-SND
2020-07-012041305-SND
2020-11-042074464-SND
2021-04-072123196-SND
2021-11-032180746-SND
2022-03-312221620-SND
2022-11-0222-71086-SND
2023-04-1023-19659-SND
2023-11-0623-67462-SND