| Date | Value |
|---|---|
| May 11, 2015 18:43 | 7.8 pH |
| Apr 28, 2015 10:19 | 7.7 pH |
| Apr 23, 2015 15:37 | 7.6 pH |
| Apr 20, 2015 14:09 | 7.9 pH |
| Apr 19, 2015 10:06 | 7.8 pH |
| Apr 18, 2015 11:58 | 7.4 pH |
| Feb 21, 2015 13:11 | 8.2 pH |
| Dec 23, 2014 16:42 | 8.2 pH |
| Dec 7, 2014 16:52 | 8.2 pH |
| Nov 17, 2014 14:04 | 8.2 pH |
| Nov 8, 2014 19:54 | 8.2 pH |
| Oct 9, 2014 17:50 | 8.1 pH |