Oxamyl (Vydate)
Concord Water System
NOTE: Concord Water System purchases water from Marion Water System which is required to test for oxamyl (vydate). Sample information shown below was taken by Marion Water System.
Oxamyl is a neurotoxic insecticide used on cotton, fruit and vegetable crops. It may harm fetal development.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 26 ppb
The EWG Health Guideline of 26 ppb for oxamyl was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to the central nervous system.
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for oxamyl, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
NOTE: Concord Water System purchases water from Marion Water System which is required to test for oxamyl (vydate). Sample information shown below was taken by Marion Water System.
| Date | Lab ID | Result |
|---|---|---|
| 2014-11-17 | AD99768 | ND |
| 2014-11-17 | AD99768 | ND |
| 2015-08-24 | 35204447002 | ND |
| 2015-08-24 | 35204447002 | ND |
| 2017-11-06 | 35346863001 | ND |
| 2017-11-06 | 35346863001 | ND |
| 2018-07-02 | 35403471001 | ND |
| 2018-07-02 | 35403471001 | ND |