| Date | Value |
|---|---|
| Feb 14, 2020 02:03 | 8.0 pH |
| Jun 11, 2019 19:10 | 8.0 pH |
| May 22, 2019 20:38 | 7.9 pH |
| May 17, 2019 20:42 | 7.5 pH |
| May 13, 2019 18:20 | 7.4 pH |
| May 10, 2019 00:51 | 7.9 pH |
| May 6, 2019 22:28 | 8.0 pH |
| May 3, 2019 14:32 | 8.2 pH |
| Mar 13, 2019 17:33 | 8.1 pH |
| Feb 22, 2019 15:35 | 8.5 pH |