Alachlor (Lasso)
Westchester County Water District #3
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
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-09-24 | AU20759SOCS | ND |
| 2019-11-12 | AV23848SOCS | ND |
| 2020-11-09 | AW21633-1SOCS | ND |
| 2021-09-20 | AX19184-SOCS-WD3 | ND |
| 2021-09-20 | AX19180-SOCS-WD3 | ND |
| 2022-10-24 | AY19127-SOCS-WD3 | ND |
| 2022-10-24 | AY19125-SOCS-WD3 | ND |
| 2023-10-19 | AZ19385-SOCS-WD3 | ND |
| 2023-10-19 | AZ19384-SOCS-WD3 | ND |