Alachlor (Lasso)
North Penn Water Authority
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
31
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 | 22 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2020-04-01 | 22022943.00 | ND |
| 2020-04-01 | 22022973.00 | ND |
| 2020-04-01 | 22023063.00 | ND |
| 2020-04-01 | 22023033.00 | ND |
| 2020-04-01 | 22023003.00 | ND |
| 2020-04-01 | 22023141.00 | ND |
| 2020-04-13 | 22023355.00 | ND |
| 2020-04-13 | 22023325.00 | ND |
| 2020-04-13 | 22023295.00 | ND |
| 2020-04-13 | 22023265.00 | ND |
| 2020-05-04 | 22215397.00 | ND |
| 2020-07-06 | 22607399.00 | ND |
| 2020-07-06 | 22607339.00 | ND |
| 2020-07-06 | 22608078.00 | ND |
| 2020-07-06 | 22607309.00 | ND |
| 2020-07-06 | 22607369.00 | ND |
| 2020-08-10 | 22799499.00 | ND |
| 2020-08-10 | 22799619.00 | ND |
| 2020-08-10 | 22799589.00 | ND |
| 2020-08-12 | 22799529.00 | ND |
| 2020-08-12 | 22799559.00 | ND |
| 2020-08-31 | 22999398.00 | ND |
| 2021-05-05 | 24438654.00 | ND |
| 2023-04-12 | 28702884.00 | ND |
| 2023-04-12 | 28702882.00 | ND |
| 2023-04-12 | 28702883.00 | ND |
| 2023-04-12 | 28702881.00 | ND |
| 2023-07-19 | 29498052.00 | ND |
| 2023-07-19 | 29498051.00 | ND |
| 2023-07-19 | 29498053.00 | ND |
| 2023-07-19 | 29498050.00 | ND |