Dalapon
Harford County Department of Public Works
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
15
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 3 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
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 |
|---|---|---|
| 2014-07-22 | 0120016_01_00029 | ND |
| 2014-07-22 | 0120016_03_00029 | ND |
| 2014-10-20 | 0120016_02_00148 | ND |
| 2015-10-19 | E16001689007 | ND |
| 2015-10-19 | E16001689009 | ND |
| 2016-05-09 | E16004258004 | ND |
| 2016-05-09 | E16004258006 | ND |
| 2016-05-09 | E16004258002 | ND |
| 2017-04-19 | E17004140001 | ND |
| 2017-04-19 | E17004139001 | ND |
| 2017-06-19 | E17005021001 | ND |
| 2018-06-04 | E18004355009 | ND |
| 2018-06-04 | E18004355007 | ND |
| 2018-06-04 | E18004355011 | ND |
| 2019-07-31 | E20000444001 | ND |