Alachlor (Lasso)
Posey Township Water Corporation
NOTE: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for alachlor (lasso). Sample information shown below was taken by Patoka Lake Regional Water.
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 | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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: Posey Township Water Corporation purchases water from Patoka Lake Regional Water which is required to test for alachlor (lasso). Sample information shown below was taken by Patoka Lake Regional Water.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-14 | 408975RS525-1801 | ND |
| 2018-05-16 | 416929RS28-1802 | ND |
| 2018-08-16 | 426574RS28-1803 | ND |
| 2018-11-13 | 435922RS-1804 | ND |
| 2019-02-12 | 443170RS525-1901 | ND |
| 2019-05-13 | 452059RS525-1902 | ND |
| 2019-08-14 | 462026RS525-1903 | ND |
| 2019-11-11 | 470688RS525-1904 | ND |
| 2020-02-12 | 478343RS-2001 | ND |
| 2020-05-12 | 4626102 | ND |
| 2020-08-12 | 4698080 | ND |
| 2020-11-09 | 4771608 | ND |
| 2021-02-10 | 4832601 | ND |
| 2021-05-11 | 4898972 | ND |
| 2021-08-10 | 4980921 | ND |
| 2021-08-18 | 4990896 | ND |
| 2021-11-10 | 1-810-7353-1 | ND |
| 2022-02-08 | 1-810-14164-6 | ND |
| 2022-05-10 | 1-810-24180-1 | ND |
| 2022-08-09 | 1-810-33419-1_IN | ND |
| 2022-08-16 | 1-810-34359-1_IN | ND |
| 2022-11-08 | 1-810-43880-1_IN | ND |
| 2023-02-14 | 1-810-53600-1_IN | ND |
| 2023-05-09 | 1-810-62557-1_IN | ND |
| 2023-08-08 | 1-810-73188-1_IN | ND |
| 2023-08-09 | 1-810-73252-1_IN | ND |
| 2023-11-07 | 1-810-84232-1_IN | ND |