Alachlor (Lasso)
Rochester Water Department
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
9
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 | 2 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-08-20 | 1408-00732-001 | ND |
| 2014-08-20 | 1408-00733-001 | ND |
| 2015-08-26 | 1508-02171-001 | ND |
| 2017-09-07 | 1709-00741-001 | ND |
| 2017-09-07 | 1709-00745-001 | ND |
| 2018-08-28 | 1808-04258-001 | ND |
| 2018-08-28 | 1808-04263-001 | ND |
| 2019-08-28 | 1908-03981-001 | ND |
| 2019-08-28 | 1908-03985-001 | ND |