Alachlor (Lasso)
Aqua Pa West Chester
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 | 2 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 6 | 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 |
|---|---|---|
| 2020-04-09 | 22206946.00 | ND |
| 2020-07-09 | 22599538.00 | ND |
| 2023-02-03 | 28513890.00 | ND |
| 2023-04-06 | 28694203.00 | ND |
| 2023-04-26 | 28891610.00 | ND |
| 2023-07-13 | 29488875.00 | ND |
| 2023-07-19 | 29488911.00 | ND |
| 2023-10-31 | 30418466.00 | ND |