Dalapon
Plantation Bay Water Treatment Plant
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
9
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 | 2.20 ppb | 3 | 3 | 1.000 ppb - 4.50 ppb |
| 2015 | 0.400 ppb | 3 | 1 | ND - 1.20 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 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 |
|---|---|
| 2014-04-17 | 4.50 ppb |
| 2014-08-28 | 1.000 ppb |
| 2014-12-03 | 1.10 ppb |
| 2015-02-05 | 1.20 ppb |
| 2015-04-21 | ND |
| 2015-07-16 | ND |
| 2017-03-23 | ND |
| 2018-03-28 | ND |
| 2019-02-27 | ND |