Alachlor (Lasso)
Atascadero Mutual Water Company
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 6 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-01-14 | 3761-044-1012 | ND |
| 2014-05-08 | 3761-020-1010 | ND |
| 2014-05-08 | 3761-042-1030 | ND |
| 2014-05-27 | 3761-040-0940 | ND |
| 2014-07-10 | 3761-007-0900 | ND |
| 2014-07-10 | 3761-023-0830 | ND |
| 2015-02-05 | 3761-001-1010 | ND |
| 2015-02-05 | 3761-015-0930 | ND |
| 2015-02-05 | 3761-016-1020 | ND |
| 2016-05-10 | 3761-050-0834 | ND |