Dalapon
Matagorda Dunes Subdivision
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 | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-06-25 | AC58016 | ND |
| 2015-07-23 | AD00743 | ND |
| 2015-07-23 | AD00837 | ND |
| 2016-05-31 | AD38767 | ND |
| 2017-05-25 | AD85711 | ND |
| 2018-05-29 | AE27882 | ND |
| 2018-05-29 | AE27939 | ND |
| 2018-07-18 | AE33749 | ND |
| 2018-07-18 | AE33720 | ND |
| 2018-11-14 | AE46047 | ND |
| 2018-11-14 | AE46035 | ND |
| 2019-02-25 | AE55596 | ND |
| 2019-02-25 | AE55597 | ND |
| 2019-06-17 | AE70831 | ND |
| 2019-06-17 | AE70832 | ND |
| 2019-08-26 | AE80555 | ND |
| 2019-08-26 | AE80554 | ND |
| 2019-12-11 | AE92131 | ND |
| 2019-12-11 | AE92109 | ND |