Alachlor (Lasso)
Purcellville, Town of
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
15
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 | 5 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-03-13 | E180100343 | ND |
| 2018-05-30 | E180303848 | ND |
| 2018-05-30 | E180303852 | ND |
| 2018-08-21 | E180601977 | ND |
| 2018-08-28 | E180601952 | ND |
| 2019-03-21 | E190302937 | ND |
| 2019-03-21 | E190302946 | ND |
| 2021-02-24 | E210100123 | ND |
| 2021-05-17 | E210400634 | ND |
| 2021-05-24 | E210400642 | ND |
| 2021-08-18 | E210601480 | ND |
| 2023-01-25 | E221203948 | ND |
| 2023-06-12 | E230305122 | ND |
| 2023-06-12 | E230305395 | ND |
| 2023-08-22 | E230603368 | ND |