Alachlor (Lasso)
Pennsylvania American Water Company Warren
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 | 1 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2019-08-27 | 46272501 | ND |
| 2020-04-06 | 22151835.00 | ND |
| 2020-04-15 | 22151863.00 | ND |
| 2020-05-06 | 22347216.00 | ND |
| 2020-05-13 | 22347288.00 | ND |
| 2020-07-08 | 22736949.00 | ND |
| 2020-07-15 | 22736877.00 | ND |
| 2020-08-13 | 22934661.00 | ND |
| 2020-08-19 | 22934689.00 | ND |
| 2023-04-03 | 28837790.00 | ND |
| 2023-04-11 | 28837747.00 | ND |
| 2023-06-06 | 29240292.00 | ND |
| 2023-06-13 | 29240320.00 | ND |
| 2023-08-15 | 29636957.00 | ND |
| 2023-08-16 | 29636986.00 | ND |
| 2023-09-05 | 29827559.00 | ND |
| 2023-09-12 | 29827588.00 | ND |