Germanium
San Francisco City Water System
Germanium is a naturally occuring element used as a component in semiconductors and fiber optics. Excessive exposures to germanium may harm the kidneys.
23
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 | 23 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-22 | 201801230577 | ND |
| 2018-01-22 | 201801230575 | ND |
| 2018-01-22 | 201801230583 | ND |
| 2018-01-22 | 201801230763 | ND |
| 2018-01-22 | 201801230588 | ND |
| 2018-01-22 | 201801230754 | ND |
| 2018-04-23 | 201804240634 | ND |
| 2018-04-23 | 201804240635 | ND |
| 2018-04-23 | 201804240646 | ND |
| 2018-04-23 | 201804240644 | ND |
| 2018-04-23 | 201804240632 | ND |
| 2018-04-23 | 201804240633 | ND |
| 2018-07-23 | 201807240392 | ND |
| 2018-07-23 | 201807240390 | ND |
| 2018-08-30 | 201808310449 | ND |
| 2018-08-30 | 201808310471 | ND |
| 2018-09-19 | 201809200530 | ND |
| 2018-09-19 | 201809200540 | ND |
| 2018-10-22 | 201810230286 | ND |
| 2018-10-22 | 201810230471 | ND |
| 2018-12-11 | 201812120358 | ND |
| 2018-12-11 | 201812120162 | ND |
| 2018-12-11 | 201812120277 | ND |