Alachlor (Lasso)
City of La Palma
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
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 | N/A | 0 | 0 | N/A |
2016 | ND | 4 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 4 | 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 |
---|---|---|
2016-02-01 | 4417-001-0830 | ND |
2016-02-08 | 4417-006-0850 | ND |
2016-06-06 | 4417-006-1025 | ND |
2016-09-27 | 4417-001-1030 | ND |
2017-03-06 | 4417-001-1140 | ND |
2017-05-01 | 4417-001-0915 | ND |
2019-02-04 | 4417-001-0820 | ND |
2019-02-04 | 4417-006-0840 | ND |
2019-04-01 | 4417-001-0840 | ND |
2019-04-01 | 4417-006-0945 | ND |