Alachlor (Lasso)
Chalk Hill Special Utility District
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
10
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 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 3 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-20 | Q1824487004 | ND |
| 2018-06-20 | Q1824487011 | ND |
| 2018-06-20 | Q1824487012 | ND |
| 2019-04-08 | Q1914000008 | ND |
| 2020-12-17 | Q2050083001 | ND |
| 2021-11-09 | Q2131359001 | ND |
| 2021-11-09 | Q2131359002 | ND |
| 2021-11-09 | Q2131359005 | ND |
| 2022-12-13 | Q2237298007 | ND |
| 2023-05-23 | Q2319409009 | ND |