Know Your Environment. Protect Your Health.

Alachlor (Lasso)

Rockwood People's Utilities Department

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for alachlor (lasso). Sample information shown below was taken by Portland Water Bureau.

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND30ND
2021ND10ND
2022ND20ND
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

NOTE: Rockwood People's Utilities Department purchases water from Portland Water Bureau which is required to test for alachlor (lasso). Sample information shown below was taken by Portland Water Bureau.

Date Lab ID Result
2018-03-15BC03118-SND
2020-05-12BC38533-SND
2020-08-04202008070432-SND
2020-08-05202008070418-SND
2021-08-04BC60213-SND
2023-04-25380-45349-1-SND
2023-08-15380-59561-1-SND
2023-08-29380-61323-1ND
2023-10-02380-65583-1-SND