SEP-14 SEP-15 SEP-16 SEP-17 SEP-18 SEP-19 SEP-20
ELS Zone (1)              
Total Hardness (mg/L as CaCO3) (2) 174 190 177 175 175 177 --
pH (pH) (3) 7.7 7.7 7.7 7.6 7.7 7.7 --
Temperature (°C) -- -- 13.7 13.8 14.3 14.7 --
Total Chlorine Residual (mg/L) (4) 2.16 2.17 2.17 2.17 2.16 2.15 --
Alkalinity (mg/L as CaCO3) (5) 120 125 119 125 122 121 --
Conductivity (µS/cm) (6) 408 413 389 394 392 389 --
Caustic Soda (mg/L) (7) 6.99 5.38 4.76 5.37 4.99 4.45 --