Alachlor (Lasso)
City of Lewiston
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
17
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 | 6 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2015-01-21 | S2150122025-001 | ND |
| 2015-07-22 | S150723044-003 | ND |
| 2015-07-22 | S150723044-002 | ND |
| 2015-07-22 | S150723044-001 | ND |
| 2015-08-19 | S150819036-002 | ND |
| 2015-08-19 | S150819036-001 | ND |
| 2016-05-16 | S160518056-001 | ND |
| 2017-03-28 | S170328050-001 | ND |
| 2018-02-21 | S180221045-001 | ND |
| 2018-02-22 | S180223004-001 | ND |
| 2018-12-13 | S181213011-002 | ND |
| 2018-12-13 | S181213011-001 | ND |
| 2019-02-19 | S190221006-001 | ND |
| 2019-04-23 | S190423067-002 | ND |
| 2019-04-23 | S190423067-001 | ND |
| 2019-08-14 | S190814080-001 | ND |
| 2019-08-14 | S190814075-003 | ND |