Dalapon
Tbw/s. Pasco Wellfield Chemical Feed System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
12
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 | 2 | 0 | ND |
| 2015 | 0.190 ppb | 2 | 1 | ND - 0.380 ppb |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|
| 2014-04-09 | ND |
| 2014-06-03 | ND |
| 2015-04-01 | 0.380 ppb |
| 2015-04-07 | ND |
| 2016-04-06 | ND |
| 2016-05-10 | ND |
| 2017-04-05 | ND |
| 2017-04-18 | ND |
| 2018-04-04 | ND |
| 2018-04-09 | ND |
| 2019-04-02 | ND |
| 2019-04-03 | ND |