Germanium
Johnston Municipal Water Supply
NOTE: Johnston Municipal Water Supply purchases water from Des Moines Water Works which is required to test for germanium. Sample information shown below was taken by Des Moines Water Works.
Germanium is a naturally occuring element used as a component in semiconductors and fiber optics. Excessive exposures to germanium may harm the kidneys.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
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 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Johnston Municipal Water Supply purchases water from Des Moines Water Works which is required to test for germanium. Sample information shown below was taken by Des Moines Water Works.
Date | Lab ID | Result |
---|---|---|
2019-08-12 | 848404 | ND |
2019-08-12 | 848402 | ND |
2019-08-12 | 848392 | ND |
2019-11-04 | 888519 | ND |
2019-11-04 | 888538 | ND |
2019-11-04 | 888552 | ND |
2020-02-03 | 923786 | ND |
2020-02-03 | 923788 | ND |
2020-02-03 | 923784 | ND |