Alachlor (Lasso)
Concord Water System
NOTE: Concord Water System purchases water from Marion Water System which is required to test for alachlor (lasso). Sample information shown below was taken by Marion Water System.
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 4 | 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
NOTE: Concord Water System purchases water from Marion Water System which is required to test for alachlor (lasso). Sample information shown below was taken by Marion Water System.
| Date | Lab ID | Result |
|---|---|---|
| 2014-11-17 | AD99768 | ND |
| 2014-11-17 | AD99768 | ND |
| 2015-08-24 | 35204447002 | ND |
| 2015-08-24 | 35204447002 | ND |
| 2017-11-06 | 35346863001 | ND |
| 2017-11-06 | 35346863001 | ND |
| 2018-05-14 | 35392913003 | ND |
| 2018-05-14 | 35392913003 | ND |