Cobalt
Naval Air Station/whidbey Island
NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for cobalt. Sample information shown below was taken by City of Oak Harbor.
Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.
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 | 8 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 70 ppb
The EWG Health Guideline of 70 ppb for cobalt was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.
ppb = parts per billion
All test results
NOTE: Naval Air Station/whidbey Island purchases water from City of Oak Harbor which is required to test for cobalt. Sample information shown below was taken by City of Oak Harbor.
| Date | Lab ID | Result |
|---|---|---|
| 2013-07-09 | WA97-SE1-13-12106-27485 | ND |
| 2013-07-31 | WA97-SE1-13-12106-27486 | ND |
| 2013-10-08 | WA97-SE2-13-19311-43867 | ND |
| 2013-10-08 | WA97-SE2-13-19311-43866 | ND |
| 2014-01-07 | WA97-SE3-14-00295-746 | ND |
| 2014-01-07 | WA97-SE3-14-00295-745 | ND |
| 2014-04-10 | WA97-SE4-14-06305-15291 | ND |
| 2014-04-10 | WA97-SE4-14-06305-15290 | ND |