Dalapon
City of Gonzales Water 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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 6 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 6 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 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 | Lab ID | Result |
|---|---|---|
| 2014-05-23 | AD91786 | ND |
| 2014-05-23 | AD91789 | ND |
| 2014-05-23 | AD91790 | ND |
| 2014-05-23 | AD91786 | ND |
| 2014-05-23 | AD91789 | ND |
| 2014-05-23 | AD91790 | ND |
| 2017-05-30 | 35315298003 | ND |
| 2017-05-30 | 35315298004 | ND |
| 2017-05-30 | 35315298005 | ND |
| 2017-05-30 | 35315298003 | ND |
| 2017-05-30 | 35315298004 | ND |
| 2017-05-30 | 35315298005 | ND |