Alachlor (Lasso)
Hca Roan Filter Plant
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
9
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 | 2 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2020-06-08 | 22436135.00 | ND |
| 2020-10-19 | 23201715.00 | ND |
| 2021-01-07 | 23731064.00 | ND |
| 2021-04-08 | 24266579.00 | ND |
| 2021-07-01 | 24848264.00 | ND |
| 2023-02-28 | 28541427.00 | ND |
| 2023-05-02 | 28921480.00 | ND |
| 2023-08-22 | 29719397.00 | ND |
| 2023-11-14 | 30089964.00 | ND |