Cobalt
Moscow Water Department
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 | 2.02 ppb | 10 | 1 | ND - 20.2 ppb |
| 2015 | 1.69 ppb | 10 | 1 | ND - 16.9 ppb |
| 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 |
|---|---|---|
| 2014-10-03 | 141003018-004 | ND |
| 2014-10-03 | 141003018-003 | ND |
| 2014-10-03 | 141003018-001 | ND |
| 2014-10-03 | 141003018-002 | ND |
| 2014-10-03 | 141003018-014 | ND |
| 2014-10-03 | 141003018-015 | ND |
| 2014-10-03 | 141003018-012 | ND |
| 2014-10-03 | 141003018-013 | ND |
| 2014-10-03 | 141003018-011 | ND |
| 2014-10-03 | 141003018-005 | 20.2 ppb |
| 2015-04-01 | 150401020-014 | ND |
| 2015-04-01 | 150401020-005 | 16.9 ppb |
| 2015-04-01 | 150401020-012 | ND |
| 2015-04-01 | 150401020-015 | ND |
| 2015-04-01 | 150401020-011 | ND |
| 2015-04-01 | 150401020-001 | ND |
| 2015-04-01 | 150401020-013 | ND |
| 2015-04-01 | 150401020-004 | ND |
| 2015-04-01 | 150401020-003 | ND |
| 2015-04-01 | 150401020-002 | ND |