JUN-29 JUN-30 JUL-01 JUL-02 JUL-03 JUL-04 JUL-05
ELS Zone (1)              
Total Hardness (mg/L as CaCO3) (2) 172 174 175 171 174 172 174
pH (pH) (3) 8.0 8.0 8.0 8.0 7.8 7.6 7.6
Temperature (°C) -- -- -- -- -- -- --
Total Chlorine Residual (mg/L) (4) 1.99 2.02 1.99 1.99 1.98 1.99 2.00
Alkalinity (mg/L as CaCO3) (5) 116 116 115 117 116 115 115
Conductivity (µS/cm) (6) 418 413 413 411 409 407 401
Caustic Soda (mg/L) (7) 15.8 13.6 13.1 12.0 11.0 9.53 8.42