Alachlor (Lasso)
City of Corvallis
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
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2020-05-19 | 005202102-S | ND |
| 2020-05-19 | 005202101-S | ND |
| 2020-08-26 | 008270201-S | ND |
| 2020-08-26 | 008270202-S | ND |
| 2023-05-31 | 3060106-01-S | ND |
| 2023-05-31 | 3060105-01-S | ND |
| 2023-08-16 | 3081712-01-S | ND |
| 2023-08-16 | 3081714-01-S | ND |