Oxamyl (Vydate)
Upper Hanover Water Authority
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 7 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 13 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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
| Date | Lab ID | Result |
|---|---|---|
| 2020-03-20 | 21847990.00 | ND |
| 2020-03-20 | 21847988.00 | ND |
| 2020-03-20 | 21847989.00 | ND |
| 2020-06-18 | 22417367.00 | ND |
| 2020-06-18 | 22417370.00 | ND |
| 2020-06-18 | 22417368.00 | ND |
| 2020-06-18 | 22417369.00 | ND |
| 2023-02-28 | 28703080.00 | ND |
| 2023-02-28 | 28703082.00 | ND |
| 2023-02-28 | 28703081.00 | ND |
| 2023-05-24 | 29108938.00 | ND |
| 2023-05-24 | 29108940.00 | ND |
| 2023-05-24 | 29108939.00 | ND |
| 2023-08-21 | 29700645.00 | ND |
| 2023-08-21 | 29700644.00 | ND |
| 2023-08-22 | 29700646.00 | ND |
| 2023-11-13 | 30246613.00 | ND |
| 2023-11-13 | 30246585.00 | ND |
| 2023-11-14 | 30246557.00 | ND |
| 2023-11-28 | 30246529.00 | ND |