Alachlor (Lasso)
City of Woodway
NOTE: City of Woodway purchases water from City of Waco which is required to test for alachlor (lasso). Sample information shown below was taken by City of Waco.
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 | 4 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 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
NOTE: City of Woodway purchases water from City of Waco which is required to test for alachlor (lasso). Sample information shown below was taken by City of Waco.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | AE08463 | ND |
| 2018-01-09 | AE08464 | ND |
| 2019-01-23 | AE51053 | ND |
| 2019-01-23 | AE51054 | ND |
| 2020-02-05 | AE97177 | ND |
| 2020-02-05 | AE97178 | ND |
| 2020-02-05 | AE97179 | ND |
| 2021-03-17 | AF47324 | ND |
| 2021-03-17 | AF47325 | ND |
| 2022-01-26 | AF82013 | ND |
| 2022-01-26 | AF82015 | ND |
| 2023-03-01 | AG31198 | ND |
| 2023-05-10 | AG40106 | ND |