Cobalt
Silverdale Water District 16
Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.
44
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 | 22 | 0 | ND |
| 2015 | ND | 22 | 0 | ND |
| 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 |
|---|---|---|
| 2014-12-08 | 201412090605AM | ND |
| 2014-12-08 | 201412090590AM | ND |
| 2014-12-08 | 201412090603AM | ND |
| 2014-12-08 | 201412090583AM | ND |
| 2014-12-08 | 201412090767AM | ND |
| 2014-12-08 | 201412090508AM | ND |
| 2014-12-09 | 201412100442AM | ND |
| 2014-12-09 | 201412100776AM | ND |
| 2014-12-09 | 201412100830AM | ND |
| 2014-12-10 | 201412110237AM | ND |
| 2014-12-10 | 201412110884AM | ND |
| 2014-12-18 | 201412190343AM | ND |
| 2014-12-18 | 201412190353AM | ND |
| 2014-12-18 | 201412190360AM | ND |
| 2014-12-18 | 201412190156AM | ND |
| 2014-12-18 | 201412190170AM | ND |
| 2014-12-18 | 201412190172AM | ND |
| 2014-12-18 | 201412190154AM | ND |
| 2014-12-22 | 201412300248AM | ND |
| 2014-12-22 | 201412230505AM | ND |
| 2014-12-22 | 201412230665AM | ND |
| 2014-12-22 | 201412230809AM | ND |
| 2015-06-16 | 201506170375AM | ND |
| 2015-06-16 | 201506170589AM | ND |
| 2015-06-16 | 201506170384AM | ND |
| 2015-06-16 | 201506170352AM | ND |
| 2015-06-16 | 201506170403AM | ND |
| 2015-06-17 | 201506190057AM | ND |
| 2015-06-17 | 201506180486AM | ND |
| 2015-06-17 | 201506180501AM | ND |
| 2015-06-17 | 201506180490AM | ND |
| 2015-06-17 | 201506180469AM | ND |
| 2015-06-17 | 201506180429AM | ND |
| 2015-06-22 | 201506230801AM | ND |
| 2015-06-29 | 201506300483AM | ND |
| 2015-06-29 | 201506300289AM | ND |
| 2015-06-29 | 201506300285AM | ND |
| 2015-06-29 | 201506300444AM | ND |
| 2015-06-29 | 201506300345AM | ND |
| 2015-06-29 | 201506300291AM | ND |
| 2015-06-29 | 201506230408AM | ND |
| 2015-06-29 | 201506300448AM | ND |
| 2015-06-29 | 201506300281AM | ND |
| 2015-06-29 | 201506300173AM | ND |