| Sample Date | Result Flag | Result Value | Unit | |
|---|---|---|---|---|
| 2013-06-11 | 7.7 | no units | View Sample | |
| 2015-06-17 | 7.6 | no units | View Sample | |
| 2017-07-24 | 7.6 | no units | View Sample | |
| 2019-07-09 | 7.6 | no units | View Sample | |
| 2023-06-06 | 7.5 | no units | View Sample | |
| 2025-06-11 | 7.5 | no units | View Sample |
