| Date | Value |
|---|---|
| Oct 15, 2019 04:30 | 2.5 ppm |
| Oct 14, 2019 05:26 | 2.5 ppm |
| Oct 13, 2019 05:26 | 2.5 ppm |
| Oct 12, 2019 05:25 | 2.5 ppm |
| Oct 12, 2019 04:25 | 5 ppm |
| Oct 6, 2019 20:42 | 0.00 ppm |
| Oct 3, 2019 20:12 | 0.25 ppm |
| Sep 29, 2019 20:42 | 0.00 ppm |
| Sep 26, 2019 13:28 | 0.50 ppm |
| Sep 24, 2019 22:00 | 0.25 ppm |
| Sep 22, 2019 13:50 | 0.50 ppm |
| Sep 21, 2019 09:29 | 0.50 ppm |