Alachlor (Lasso)
Halcyon Acres Water Users Association 1
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 | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-12-23 | 201412240212S | ND |
| 2015-11-15 | 201511160082S | ND |
| 2015-11-15 | 201511160083S | ND |
| 2018-12-03 | 201812040024S | ND |
| 2018-12-03 | 201812040025S | ND |
| 2019-01-22 | 4182850 | ND |
| 2019-01-22 | 4182851 | ND |
| 2019-02-26 | 4212007 | ND |
| 2019-02-26 | 4212008 | ND |
| 2019-08-19 | 4394335 | ND |
| 2019-08-19 | 4394336 | ND |
| 2019-11-19 | 4493681 | ND |
| 2019-11-19 | 4493682 | ND |