OCT-12 OCT-13 OCT-14 OCT-15 OCT-16 OCT-17 OCT-18
ELS Zone (1)              
Total Hardness (mg/L as CaCO3) (2) 173 172 169 172 170 172 --
pH (pH) (3) 7.6 7.6 7.6 7.6 7.6 7.6 --
Temperature (°C) 7.9 7.2 7.0 7.1 6.9 6.9 --
Total Chlorine Residual (mg/L) (4) 2.07 2.06 2.07 2.11 2.15 2.16 --
Alkalinity (mg/L as CaCO3) (5) 113 115 116 118 111 114 --
Conductivity (µS/cm) (6) 370 372 371 375 375 378 --
Caustic Soda (mg/L) (7) 3.33 3.43 3.66 3.68 3.66 3.70 --