Alachlor (Lasso)
Monson Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
7
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2019-03-29 | CA5403212_001_001-201903290920 | ND |
| 2019-06-20 | CA5403212_001_001-201906201220 | ND |
| 2019-09-06 | CA5403212_001_001-201909061145 | ND |
| 2019-12-17 | CA5403212_001_001-201912171420 | ND |
| 2020-04-22 | CA5403212_001_001-202004221300 | ND |
| 2020-06-16 | CA5403212_001_001-202006161330 | ND |
| 2023-09-11 | CA5403212_001_001-202309111235 | ND |