Alachlor (Lasso)
Pennsylvania American Royersford
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
21
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 | 11 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2020-04-08 | 22016223.00 | ND |
| 2020-04-08 | 22016107.00 | ND |
| 2020-04-15 | 22016308.00 | ND |
| 2020-04-15 | 22016280.00 | ND |
| 2020-04-15 | 22016252.00 | ND |
| 2020-07-07 | 22601597.00 | ND |
| 2020-08-05 | 22792286.00 | ND |
| 2020-08-11 | 22792230.00 | ND |
| 2020-08-11 | 22792258.00 | ND |
| 2020-08-26 | 22792692.00 | ND |
| 2020-09-09 | 22993341.00 | ND |
| 2023-05-01 | 28893370.00 | ND |
| 2023-05-01 | 28893398.00 | ND |
| 2023-05-01 | 28893303.00 | ND |
| 2023-05-11 | 28893342.00 | ND |
| 2023-05-11 | 28893426.00 | ND |
| 2023-07-06 | 29296048.00 | ND |
| 2023-08-10 | 29491098.00 | ND |
| 2023-08-10 | 29491092.00 | ND |
| 2023-08-10 | 29491146.00 | ND |
| 2023-08-10 | 29491059.00 | ND |