Alachlor (Lasso)
City of Atwater
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
16
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 8 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 8 | 0 | ND |
| 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 |
|---|---|---|
| 2015-03-11 | 5806-013-0915 | ND |
| 2015-03-11 | 5806-014-0845 | ND |
| 2015-03-11 | 5806-015-0815 | ND |
| 2015-03-11 | 5806-016-0745 | ND |
| 2015-03-11 | 5806-017-0945 | ND |
| 2015-03-11 | 5806-018-1015 | ND |
| 2015-03-11 | 5806-019-0715 | ND |
| 2015-03-11 | 5806-021-0645 | ND |
| 2018-03-20 | 5806-014-0830 | ND |
| 2018-03-20 | 5806-015-0900 | ND |
| 2018-03-20 | 5806-016-0930 | ND |
| 2018-03-20 | 5806-017-0730 | ND |
| 2018-03-20 | 5806-018-0800 | ND |
| 2018-03-20 | 5806-019-1000 | ND |
| 2018-03-20 | 5806-021-1030 | ND |
| 2018-03-28 | 5806-013-0900 | ND |