Alachlor (Lasso)
City of Fredericksburg
NOTE: City of Fredericksburg purchases water from Spotsylvania County Utilities which is required to test for alachlor (lasso). Sample information shown below was taken by Spotsylvania County Utilities.
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
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 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 4 | 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
NOTE: City of Fredericksburg purchases water from Spotsylvania County Utilities which is required to test for alachlor (lasso). Sample information shown below was taken by Spotsylvania County Utilities.
| Date | Lab ID | Result |
|---|---|---|
| 2015-07-28 | VA010-DCLS | ND |
| 2015-07-28 | VA010-DCLS | ND |
| 2015-10-07 | VA010-DCLS | ND |
| 2015-10-19 | VA010-DCLS | ND |
| 2018-08-28 | E180803176 | ND |
| 2018-08-28 | E180803711 | ND |
| 2018-10-16 | E180903562 | ND |
| 2018-10-16 | E180903567 | ND |