Dalapon
High Meadows Ranch Water Supply
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
13
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 | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2014-06-25 | AC58017 | ND |
| 2015-07-07 | AC98614 | ND |
| 2015-07-07 | AC98615 | ND |
| 2015-07-07 | AC98552 | ND |
| 2016-09-15 | AD49719 | ND |
| 2017-02-10 | AD70460 | ND |
| 2017-05-01 | AD81941 | ND |
| 2017-05-01 | AD81830 | ND |
| 2017-07-28 | AD91448 | ND |
| 2017-11-16 | AE05228 | ND |
| 2018-04-09 | AE21749 | ND |
| 2018-04-09 | AE21748 | ND |
| 2018-05-21 | AE26998 | ND |