Cobalt
City of Opelousas Water System
Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.
12
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 |
|---|---|---|---|---|
| 2013 | ND | 12 | 0 | ND |
| 2014 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2013-02-18 | 2781492 | ND |
| 2013-02-18 | 2781501 | ND |
| 2013-02-18 | 2781490 | ND |
| 2013-02-18 | 2781488 | ND |
| 2013-02-18 | 2781503 | ND |
| 2013-02-18 | 2781483 | ND |
| 2013-07-18 | 2861445 | ND |
| 2013-07-18 | 2861615 | ND |
| 2013-07-18 | 2861494 | ND |
| 2013-07-18 | 2861432 | ND |
| 2013-07-18 | 2861480 | ND |
| 2013-08-20 | 2882505 | ND |