Alachlor (Lasso)
Montrose Boydell Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
7
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 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 3 | 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 |
|---|---|---|
| 2022-04-19 | O197140-OGC-1 | ND |
| 2022-08-22 | O201167-OGC-1 | ND |
| 2022-10-18 | O202986-OGC-1 | ND |
| 2023-01-10 | O205109-OGC-1 | ND |
| 2023-06-12 | O209892-OGC-1 | ND |
| 2023-08-30 | O211701-OGC-1 | ND |
| 2023-10-18 | O213099-OGC-1 | ND |