SEP-04 SEP-05 SEP-06 SEP-07 SEP-08 SEP-09 SEP-10
ELS Zone (1)              
Total Hardness (mg/L as CaCO3) (2) 180 173 177 173 177 178 --
pH (pH) (3) 7.6 7.6 7.6 7.6 7.6 7.6 7.6
Temperature (°C) -- -- -- -- -- -- --
Total Chlorine Residual (mg/L) (4) 2.11 2.13 2.13 2.09 2.06 2.05 2.07
Alkalinity (mg/L as CaCO3) (5) 121 118 115 115 119 118 117
Conductivity (µS/cm) (6) 411 403 395 392 394 395 393
Caustic Soda (mg/L) (7) 9.07 6.14 4.69 3.46 2.70 2.22 1.47