Alachlor (Lasso)
Bryan County Rural Water District #9
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 | ND | 3 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 8 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-03-27 | SDWA-1241573-00 | ND |
| 2018-03-27 | SDWA-1241574-00 | ND |
| 2018-03-27 | SDWA-1241572-00 | ND |
| 2020-03-02 | SDWA-1470004-00 | ND |
| 2020-03-02 | SDWA-1470054-00 | ND |
| 2020-03-02 | SDWA-1470005-00 | ND |
| 2020-03-02 | SDWA-1470003-00 | ND |
| 2020-09-01 | SDWA-1516101-00 | ND |
| 2020-09-01 | SDWA-1516100-00 | ND |
| 2020-09-01 | SDWA-1516099-00 | ND |
| 2020-09-01 | SDWA-1516075-00 | ND |
| 2022-03-07 | SDWA-1674251-00 | ND |
| 2022-04-20 | SDWA-1684773-00 | ND |
| 2022-04-20 | SDWA-1684800-00 | ND |
| 2022-04-20 | SDWA-1684824-00 | ND |
| 2022-04-20 | SDWA-1684848-00 | ND |
| 2023-12-15 | SDWA-1859120-00 | ND |