| MONTH | SiO2 | S | CL(-) | LOI | +45 µm | H2O | K2O | Na2O | pH | |
| Jan-04 | 95.6 | 0.08 | 0.04 | 1.9 | 3.7 | 0.5 | 0.38 | 0.06 | 6.7 | |
| Feb-04 | 95.4 | 0.09 | 0.06 | 2.1 | 3.4 | 0.6 | 0.54 | 0.09 | 7.0 | |
| Mar-04 | 96.0 | 0.09 | 0.06 | 1.7 | 2.6 | 0.5 | 0.53 | 0.08 | 7.3 | |
| Apr-04 | 96.4 | 0.07 | 0.03 | 1.4 | 1.8 | 0.5 | 0.47 | 0.08 | 7.5 | |
| May-04 | 95.4 | 0.10 | 0.06 | 1.8 | 2.3 | 0.6 | 0.61 | 0.12 | 7.6 | |
| Jun-04 | 96.1 | 0.07 | 0.03 | 1.5 | 3.0 | 0.5 | 0.39 | 0.06 | 7.3 | |
| Jul-04 | 96.1 | 0.07 | 0.04 | 1.6 | 2.8 | 0.6 | 0.40 | 0.07 | 7.5 | |
| Aug-04 | 95.6 | 0.09 | 0.05 | 1.8 | 3.1 | 0.7 | 0.53 | 0.10 | 7.6 | |
| Sep-04 | 95.6 | 0.10 | 0.04 | 1.8 | 2.5 | 0.6 | 0.65 | 0.12 | 7.6 | |
| Oct-04 | 95.8 | 0.11 | 0.05 | 1.8 | 2.4 | 0.7 | 0.69 | 0.11 | 7.5 | |
| Nov-04 | 95.5 | 0.10 | 0.05 | 1.8 | 2.4 | 0.7 | 0.64 | 0.11 | 7.3 | |
| Dec-04 | 94.6 | 0.12 | 0.09 | 2.0 | 2.3 | 0.6 | 0.93 | 0.15 | 8.0 | |
| AVG | 95.7 | 0.09 | 0.05 | 1.8 | 2.7 | 0.6 | 0.56 | 0.10 | 7.4 | |
| MIN | 94.6 | 0.07 | 0.03 | 1.4 | 1.8 | 0.5 | 0.38 | 0.06 | 6.7 | |
| MAX | 96.4 | 0.12 | 0.09 | 2.1 | 3.7 | 0.7 | 0.93 | 0.15 | 8.0 | |
|
||||||||||