Diazinon (Spectracide)
California Water Service - Livermore
NOTE: California Water Service - Livermore purchases water from Zone 7 Water Agency which is required to test for diazinon (spectracide). Sample information shown below was taken by Zone 7 Water Agency.
Diazinon is a toxic pesticide. The EPA banned residential uses in 2004 and restricted uses on food crops due to safety concerns. Diazinon exposures damage the nervous system, especially during gestation and childhood.
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 | ND | 5 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1 ppb
The EWG Health Guideline of 1 ppb for diazinon was defined by the Environmental Protection Agency as a lifetime health-based limit for effects other than cancer. This health guideline protects against non-cancer toxicity.
ppb = parts per billion
All test results
NOTE: California Water Service - Livermore purchases water from Zone 7 Water Agency which is required to test for diazinon (spectracide). Sample information shown below was taken by Zone 7 Water Agency.
| Date | Lab ID | Result |
|---|---|---|
| 2020-07-07 | CA0110010_005_005-202007070940 | ND |
| 2020-07-07 | CA0110010_011_011-202007070850 | ND |
| 2020-07-07 | CA0110010_017_017-202007070925 | ND |
| 2020-07-07 | CA0110010_019_019-202007070800 | ND |
| 2020-07-07 | CA0110010_006_006-202007071115 | ND |
| 2020-07-08 | CA0110010_007_007-202007080830 | ND |
| 2020-07-08 | CA0110010_013_013-202007080925 | ND |