Dalapon
Chesterfield County Central Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
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) 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-22 | E140308588 | ND |
| 2014-04-22 | E140308602 | ND |
| 2014-04-22 | E140308611 | ND |
| 2014-04-22 | E140308577 | 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 | E160305662 | ND |
| 2016-04-25 | E160305651 | ND |
| 2016-04-25 | E160305663 | ND |
| 2016-04-25 | E160305678 | ND |
| 2017-02-21 | E161203723 | ND |
| 2017-02-21 | E161203728 | ND |
| 2017-02-21 | E161203718 | ND |
| 2017-04-19 | E170304720 | ND |
| 2017-04-19 | E170304727 | ND |
| 2017-04-19 | E170304728 | ND |
| 2017-04-19 | E170304742 | ND |