| Date | Value |
|---|---|
| Feb 22, 2013 03:52 | 6.7 pH |
| Feb 7, 2013 00:47 | 7.2 pH |
| Feb 1, 2013 04:42 | 7.2 pH |
| Jan 31, 2013 05:02 | 7.2 pH |
| Jan 30, 2013 08:35 | 7.4 pH |
| Jan 29, 2013 03:57 | 7.4 pH |
| Jan 28, 2013 08:08 | 7.4 pH |
| Jan 27, 2013 01:25 | 7.4 pH |
| Jan 26, 2013 05:18 | 7.6 pH |
| Jan 25, 2013 02:21 | 7.6 pH |