Alachlor (Lasso)
Franklin County Rural Water District 4
NOTE: Franklin County Rural Water District 4 purchases water from City of Ottawa which is required to test for alachlor (lasso). Sample information shown below was taken by City of Ottawa.
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Samples
Samples exceeding legal limit (MCL)
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 | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 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
NOTE: Franklin County Rural Water District 4 purchases water from City of Ottawa which is required to test for alachlor (lasso). Sample information shown below was taken by City of Ottawa.
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-13 | 987800 | ND |
| 2019-06-19 | 1188331 | ND |
| 2020-06-17 | 1406954 | ND |
| 2021-06-30 | 1870953 | ND |
| 2022-05-11 | 2256211 | ND |
| 2023-05-16 | 2501690 | ND |