Alachlor (Lasso)
Bear Valley Joint Authority
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
15
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 | 4 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-04-24 | 8045215-01 | ND |
| 2018-05-29 | 8055386-01 | ND |
| 2018-07-17 | 8074944-01 | ND |
| 2018-11-27 | 8114887-01 | ND |
| 2019-02-19 | 9024042-01 | ND |
| 2019-11-13 | 9036887-01 | ND |
| 2020-01-29 | 21798036.00 | ND |
| 2020-04-15 | 22362551.00 | ND |
| 2020-04-29 | 22362585.00 | ND |
| 2020-07-29 | 22949608.00 | ND |
| 2020-08-19 | 23136908.00 | ND |
| 2023-06-08 | 29254339.00 | ND |
| 2023-06-08 | 29254326.00 | ND |
| 2023-07-18 | 29651649.00 | ND |
| 2023-07-18 | 29651669.00 | ND |