Cobalt
City of Sunnyside
Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.
20
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 | 20 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-31 | WA97-SE1-14-05465-13410 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13409 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13414 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13415 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13413 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13412 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13411 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13408 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13407 | ND |
| 2014-03-31 | WA97-SE1-14-05465-13406 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39554 | ND |
| 2014-09-03 | WA97-SE2-14-17795-40724 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39553 | ND |
| 2014-09-03 | WA97-SE2-14-17795-40725 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39553A | ND |
| 2014-09-03 | WA97-SE2-14-17266-39557 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39558 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39556 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39555 | ND |
| 2014-09-03 | WA97-SE2-14-17266-39559 | ND |