Alachlor (Lasso)
Fairfax County Water Authority
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 | ND | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 4 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-08-13 | 201408140607-SVO | ND |
2014-08-13 | 201408140460-SVO | ND |
2014-11-05 | 201411060282-SVO | ND |
2014-11-05 | 201411060397-SVO | ND |
2017-07-26 | 201707270603-SVO | ND |
2017-07-26 | 201707270595-SVO | ND |
2017-11-29 | 201711300416-SVO | ND |
2017-11-29 | 201711300414-SVO | ND |