Dalapon
Wrightsville Beach Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
24
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 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 12 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 11 | 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 |
|---|---|---|
| 2016-04-05 | 37729_16-10381 | ND |
| 2016-04-05 | 37729_16-10382 | ND |
| 2016-04-05 | 37729_16-10383 | ND |
| 2016-04-05 | 37729_16-10384 | ND |
| 2016-04-05 | 37729_16-10385 | ND |
| 2016-04-05 | 37729_16-10380 | ND |
| 2016-07-11 | 37729_16-22361 | ND |
| 2016-07-11 | 37729_16-22368 | ND |
| 2016-07-11 | 37729_16-22369 | ND |
| 2016-07-11 | 37729_16-22370 | ND |
| 2016-07-11 | 37729_16-22371 | ND |
| 2016-07-11 | 37729_16-22359 | ND |
| 2018-01-25 | 37729_18-03258 | ND |
| 2019-09-25 | 37729_19-41851 | ND |
| 2019-09-26 | 37729_19-41846 | ND |
| 2019-09-26 | 37729_19-41847 | ND |
| 2019-09-26 | 37729_19-41848 | ND |
| 2019-09-26 | 37729_19-41849 | ND |
| 2019-09-27 | 37729_19-42086 | ND |
| 2019-12-12 | 37729_19-53168 | ND |
| 2019-12-12 | 37729_19-53172 | ND |
| 2019-12-12 | 37729_19-53173 | ND |
| 2019-12-12 | 37729_19-53175A | ND |
| 2019-12-12 | 37729_19-53134 | ND |