Alachlor (Lasso)
City of San Juan
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
15
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 5 | 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 |
|---|---|---|
| 2014-01-29 | AC40682 | ND |
| 2014-01-29 | AC40685 | ND |
| 2015-01-21 | AC77150 | ND |
| 2015-01-21 | AC77145 | ND |
| 2016-01-29 | AD21256 | ND |
| 2016-04-29 | AD34911 | ND |
| 2017-01-10 | AD64120 | ND |
| 2017-04-21 | AD80791 | ND |
| 2017-05-30 | AD86004 | ND |
| 2017-07-14 | AD89565 | ND |
| 2017-10-31 | AE03057 | ND |
| 2018-01-24 | AE10302 | ND |
| 2018-04-11 | AE22122 | ND |
| 2019-02-26 | AE56114 | ND |
| 2019-05-21 | AE67485 | ND |