Dalapon
Southwest/Polk County Utility
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
25
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 | 14 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 7 | 0 | ND |
| 2018 | 1.50 ppb | 2 | 1 | ND - 3.00 ppb |
| 2019 | 1.30 ppb | 1 | 1 | 1.30 ppb |
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 |
|---|---|
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-19 | ND |
| 2014-05-29 | ND |
| 2014-05-29 | ND |
| 2014-05-29 | ND |
| 2014-05-29 | ND |
| 2014-06-09 | ND |
| 2014-07-10 | ND |
| 2014-07-30 | ND |
| 2014-07-30 | ND |
| 2014-07-30 | ND |
| 2014-07-30 | ND |
| 2014-10-08 | ND |
| 2015-01-07 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-07-24 | ND |
| 2017-07-24 | ND |
| 2017-07-26 | ND |
| 2017-11-01 | ND |
| 2017-11-29 | ND |
| 2018-02-15 | ND |
| 2018-06-04 | 3.00 ppb |
| 2019-06-05 | 1.30 ppb |