Alachlor (Lasso)
Howard, City of
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
13
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2014-06-02 | 123241 | ND |
| 2015-05-19 | 335514 | ND |
| 2016-05-17 | 548332 | ND |
| 2017-05-22 | 765761 | ND |
| 2017-05-22 | 765762 | ND |
| 2018-03-05 | 931261 | ND |
| 2018-05-21 | 974201 | ND |
| 2018-08-20 | 1029091 | ND |
| 2018-11-13 | 1077188 | ND |
| 2019-02-11 | 1120337 | ND |
| 2019-05-19 | 1157333 | ND |
| 2019-08-18 | 1225334 | ND |
| 2019-11-17 | 1276628 | ND |