Germanium
Mallory Valley Utility Distric
NOTE: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for germanium. Sample information shown below was taken by Harpeth Valley Utility District.
Germanium is a naturally occuring element used as a component in semiconductors and fiber optics. Excessive exposures to germanium may harm the kidneys.
4
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 | N/A | 0 | 0 | N/A |
| 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 | ND | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for germanium. Sample information shown below was taken by Harpeth Valley Utility District.
| Date | Result |
|---|---|
| 2018-06-15 | ND |
| 2018-09-11 | ND |
| 2018-12-14 | ND |
| 2019-03-12 | ND |