Alachlor (Lasso)
The Mountain Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
20
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 | ND | 2 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 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 |
|---|---|---|
| 2019-02-26 | 680-165152-1 | ND |
| 2019-02-26 | 680-165148-1 | ND |
| 2020-03-18 | 481645 | ND |
| 2020-05-28 | 487290 | ND |
| 2020-09-02 | 497125 | ND |
| 2020-12-15 | 506069 | ND |
| 2021-03-16 | 1034274-01 | ND |
| 2021-05-11 | 1053573-01 | ND |
| 2021-08-18 | 1085286-01 | ND |
| 2021-09-24 | 810-3688-1 | ND |
| 2021-12-28 | 810-11017-1 | ND |
| 2022-03-14 | 810-18538-1 | ND |
| 2022-05-23 | FWE0084-01 | ND |
| 2022-09-20 | FWJ0174 | ND |
| 2022-09-20 | FWH0472-01 | ND |
| 2022-12-13 | FWJ0174-01 | ND |
| 2023-02-16 | FXB0443-01 | ND |
| 2023-04-05 | FXC0477 | ND |
| 2023-08-03 | FXF0558 | ND |
| 2023-11-15 | 68353501 | ND |