Dalapon
City of Mount Dora
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 5 | 0 | ND |
| 2015 | 0.630 ppb | 1 | 1 | 0.630 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 0.597 ppb | 6 | 3 | ND - 1.40 ppb |
| 2018 | 0.480 ppb | 1 | 1 | 0.480 ppb |
| 2019 | ND | 1 | 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 | Result |
|---|---|
| 2014-01-27 | ND |
| 2014-04-10 | ND |
| 2014-06-25 | ND |
| 2014-09-16 | ND |
| 2014-12-16 | ND |
| 2015-03-04 | 0.630 ppb |
| 2017-01-24 | ND |
| 2017-03-06 | 1.20 ppb |
| 2017-05-08 | ND |
| 2017-05-08 | ND |
| 2017-07-17 | 0.980 ppb |
| 2017-10-11 | 1.40 ppb |
| 2018-10-09 | 0.480 ppb |
| 2019-10-08 | ND |