Alachlor (Lasso)
Atascosa Rural WSC
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
8
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 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2014-07-21 | AC60315 | ND |
| 2015-05-15 | AC92410 | ND |
| 2017-01-12 | AD64885 | ND |
| 2017-08-09 | AD92598 | ND |
| 2017-10-06 | AD99916 | ND |
| 2018-01-18 | AE09338 | ND |
| 2018-01-18 | AE09337 | ND |
| 2018-04-06 | AE21763 | ND |