Cobalt
CTWC - Naugatuck Region-Central 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 | 10 | 0 | ND |
| 2014 | ND | 2 | 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 |
|---|---|---|
| 2013-05-29 | 201305300168AM | ND |
| 2013-05-29 | 201305300148AM | ND |
| 2013-05-29 | 201305300170AM | ND |
| 2013-05-29 | 201305300192AM | ND |
| 2013-08-13 | 201308140348AM | ND |
| 2013-08-13 | 201308140321AM | ND |
| 2013-11-18 | 201311190229AM | ND |
| 2013-11-18 | 201311190238AM | ND |
| 2013-11-19 | 201311200347AM | ND |
| 2013-11-19 | 201311200412AM | ND |
| 2014-02-11 | 201402120585AM | ND |
| 2014-02-11 | 201402120467AM | ND |