Alachlor (Lasso)
North Wales Water Authority
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
38
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 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 20 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 14 | 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 |
|---|---|---|
| 2018-04-09 | 2308183001 | ND |
| 2019-04-08 | 9043206-01 | ND |
| 2020-04-01 | 22025490.00 | ND |
| 2020-04-20 | 22026185.00 | ND |
| 2020-04-20 | 22026095.00 | ND |
| 2020-04-20 | 22026155.00 | ND |
| 2020-04-20 | 22026125.00 | ND |
| 2020-04-27 | 22217286.00 | ND |
| 2020-04-27 | 22217316.00 | ND |
| 2020-04-27 | 22217403.00 | ND |
| 2020-04-27 | 22217376.00 | ND |
| 2020-04-27 | 22217346.00 | ND |
| 2020-07-06 | 22609713.00 | ND |
| 2020-07-27 | 22801123.00 | ND |
| 2020-07-27 | 22801154.00 | ND |
| 2020-07-27 | 22801191.00 | ND |
| 2020-07-27 | 22801093.00 | ND |
| 2020-07-27 | 22801214.00 | ND |
| 2020-08-31 | 23001487.00 | ND |
| 2020-08-31 | 23001515.00 | ND |
| 2020-08-31 | 23001459.00 | ND |
| 2020-08-31 | 23001431.00 | ND |
| 2021-04-07 | 24250228.00 | ND |
| 2022-04-04 | 26466010.00 | ND |
| 2023-04-03 | 28704996.00 | ND |
| 2023-04-03 | 28704998.00 | ND |
| 2023-04-03 | 28704995.00 | ND |
| 2023-04-03 | 28704994.00 | ND |
| 2023-04-03 | 28704997.00 | ND |
| 2023-05-10 | 28902337.00 | ND |
| 2023-06-05 | 29110389.00 | ND |
| 2023-07-10 | 29304373.00 | ND |
| 2023-07-10 | 29304379.00 | ND |
| 2023-07-10 | 29304376.00 | ND |
| 2023-07-10 | 29304374.00 | ND |
| 2023-07-11 | 29304377.00 | ND |
| 2023-07-11 | 29304378.00 | ND |
| 2023-07-11 | 29304375.00 | ND |