Alachlor (Lasso)
City of Alamo Heights
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
14
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 8 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2015-04-27 | AC89619 | ND |
| 2015-04-27 | AC89620 | ND |
| 2015-04-27 | AC89622 | ND |
| 2015-04-27 | AC89621 | ND |
| 2015-06-23 | AC97067 | ND |
| 2018-01-10 | AE08759 | ND |
| 2018-01-10 | AE08760 | ND |
| 2018-01-10 | AE08761 | ND |
| 2018-01-10 | AE08762 | ND |
| 2018-04-09 | AE21762 | ND |
| 2018-06-04 | AE28599 | ND |
| 2018-08-03 | AE35923 | ND |
| 2018-10-12 | AE43516 | ND |
| 2019-03-01 | AE57018 | ND |