Alachlor (Lasso)
Hanson Water Department
NOTE: Hanson Water Department purchases water from Brockton Water Commission which is required to test for alachlor (lasso). Sample information shown below was taken by Brockton Water Commission.
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 4 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 3 | 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
NOTE: Hanson Water Department purchases water from Brockton Water Commission which is required to test for alachlor (lasso). Sample information shown below was taken by Brockton Water Commission.
| Date | Result |
|---|---|
| 2018-06-12 | ND |
| 2018-06-12 | ND |
| 2018-12-10 | ND |
| 2018-12-10 | ND |
| 2020-06-08 | ND |
| 2020-06-09 | ND |
| 2020-12-01 | ND |
| 2020-12-02 | ND |
| 2022-09-21 | ND |
| 2022-12-01 | ND |
| 2023-06-01 | ND |
| 2023-12-06 | ND |