Dalapon
City of Frederick
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
14
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 | 3 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 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) 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 |
|---|---|---|
| 2014-05-01 | 0100015_01_00486 | ND |
| 2014-05-01 | 0100015_02_00486 | ND |
| 2014-06-23 | 0100015_03_00553 | ND |
| 2015-04-08 | E15003181001 | ND |
| 2015-04-08 | E15003181003 | ND |
| 2015-04-08 | E15003181005 | ND |
| 2016-04-25 | E16003991005 | ND |
| 2016-04-25 | E16003991002 | ND |
| 2016-04-25 | E16003984002 | ND |
| 2017-04-04 | E17003895003 | ND |
| 2017-04-04 | E17003895001 | ND |
| 2017-04-05 | E17003936001 | ND |
| 2018-05-09 | E18004037001 | ND |
| 2018-05-09 | E18004056001 | ND |