Dalapon
Okeechobee Utility Authority
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 |
|---|---|---|---|---|
| 2014 | 0.325 ppb | 4 | 1 | ND - 1.30 ppb |
| 2015 | 0.715 ppb | 4 | 4 | 0.430 ppb - 1.000 ppb |
| 2016 | 1.000 ppb | 1 | 1 | 1.000 ppb |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 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 | Result |
|---|---|
| 2014-05-27 | 1.30 ppb |
| 2014-05-27 | ND |
| 2014-10-29 | ND |
| 2014-12-31 | ND |
| 2015-02-17 | 0.430 ppb |
| 2015-06-11 | 1.000 ppb |
| 2015-08-03 | 0.540 ppb |
| 2015-12-03 | 0.890 ppb |
| 2016-06-13 | 1.000 ppb |
| 2017-03-13 | ND |
| 2017-05-31 | ND |
| 2017-10-11 | ND |
| 2018-02-22 | ND |
| 2018-05-02 | ND |
| 2018-07-02 | ND |