Alachlor (Lasso)
Chesterfield County Central Water System
Alachlor is a widely used agricultural herbicide. It causes cancer in laboratory animals and may be carcinogenic to people.
19
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 7 | 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 |
|---|---|---|
| 2014-04-22 | E140308604 | ND |
| 2014-04-22 | E140308587 | ND |
| 2014-04-22 | E140308584 | ND |
| 2014-04-22 | E140308590 | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2015-04-23 | VA010-DCLS | ND |
| 2016-04-25 | E160305674 | ND |
| 2016-04-25 | E160305673 | ND |
| 2016-04-25 | E160305680 | ND |
| 2016-04-25 | E160305654 | ND |
| 2017-02-21 | E161203720 | ND |
| 2017-02-21 | E161203725 | ND |
| 2017-02-21 | E161203730 | ND |
| 2017-04-19 | E170304730 | ND |
| 2017-04-19 | E170304739 | ND |
| 2017-04-19 | E170304732 | ND |
| 2017-04-19 | E170304750 | ND |