Alachlor (Lasso)
Mt. Joy Boro Authority
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
17
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 | 9 | 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 |
|---|---|---|
| 2019-08-20 | 9083654-01 | ND |
| 2019-11-07 | 9110611-01 | ND |
| 2020-02-20 | 21981355.00 | ND |
| 2020-04-09 | 22170954.00 | ND |
| 2020-04-09 | 22171121.00 | ND |
| 2020-05-19 | 22368381.00 | ND |
| 2020-06-10 | 22565242.00 | ND |
| 2020-07-21 | 22955072.00 | ND |
| 2020-08-11 | 22955146.00 | ND |
| 2020-09-22 | 23142311.00 | ND |
| 2020-09-22 | 23142341.00 | ND |
| 2023-05-09 | 29059163.00 | ND |
| 2023-05-15 | 29059206.00 | ND |
| 2023-05-16 | 29059207.00 | ND |
| 2023-08-01 | 29657099.00 | ND |
| 2023-08-02 | 29657100.00 | ND |
| 2023-08-15 | 29846323.00 | ND |