Cobalt
CTWC - Shoreline Region-Guilford System
Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.
24
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 | 24 | 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 |
|---|---|---|
| 2014-02-10 | 201402110107AM | ND |
| 2014-02-10 | 201402110093AM | ND |
| 2014-02-10 | 201402110109AM | ND |
| 2014-02-11 | 201402120403AM | ND |
| 2014-02-11 | 201402120573AM | ND |
| 2014-02-11 | 201402120674AM | ND |
| 2014-02-11 | 201402120438AM | ND |
| 2014-02-11 | 201402120405AM | ND |
| 2014-02-24 | 201402250182AM | ND |
| 2014-04-08 | 201404090510AM | ND |
| 2014-04-08 | 201404090427AM | ND |
| 2014-05-21 | 201405220336AM | ND |
| 2014-05-21 | 201405220417AM | ND |
| 2014-08-04 | 201408050412AM | ND |
| 2014-08-04 | 201408050418AM | ND |
| 2014-08-04 | 201408050337AM | ND |
| 2014-08-04 | 201408050384AM | ND |
| 2014-08-25 | 201408270547AM | ND |
| 2014-08-25 | 201408260368AM | ND |
| 2014-08-26 | 201408270820AM | ND |
| 2014-08-26 | 201408270836AM | ND |
| 2014-08-26 | 201408270840AM | ND |
| 2014-11-18 | 201411190581AM | ND |
| 2014-11-18 | 201411190387AM | ND |