JUL-03 JUL-04 JUL-05 JUL-06 JUL-07 JUL-08 JUL-09
Rossdale Zone (1)              
Total Hardness (mg/L as CaCO3) (2) 250 220 196 194 179 181 178
pH (pH) (3) 7.7 7.9 8.0 7.9 7.9 7.9 8.0
Temperature (°C) 16.2 16.6 17.0 16.7 16.5 17.5 18.3
Total Chlorine Residual (mg/L) (4) 2.09 2.17 2.17 2.23 2.22 2.26 2.23
Alkalinity (mg/L as CaCO3) (5) 144 116 114 113 110 108 114
Conductivity (µS/cm) (6) 605 562 518 513 464 437 427
Caustic Soda (mg/L) (7) 40.4 41.3 36.1 31.4 24.1 23.5 19.9