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WATER CHEMISTRY EVALUATION OF THE EXISTING STIG-1 AND PROPOSED LEC-1 INJECTION WELLS <br /> pH = 7.524 Charge balance <br /> pe = 11.517 Adjusted to <br /> redox equilibrium <br /> Activity of water = 0. 997 <br /> Ionic strength = 1.144e-001 <br /> Mass of water (kg) = 1.000e+000 <br /> Total alkalinity (eq/kg) = 2.713e-003 <br /> Total CO2 (mol/kg) = 2.784e-003 <br /> Temperature (deg C) = 30.000 <br /> Electrical balance (eq) = -6.878e-003 <br /> Percent error, 100* (Cat- JAnl ) / (Cat+lAnl ) = -3.37 <br /> Iterations = 13 <br /> Total H = 1.110187e+002 <br /> Total 0 = 5.552197e+001 <br /> ----------------------------Distribution of species----------------------- <br /> Log Log <br /> Log <br /> Species Molality Activity Molality Activity <br /> Gamma <br /> OH- 6.427e-007 4.819e-007 -6.192 -6.317 - <br /> 0.125 <br /> H+ 3. 655e-008 2. 993e-008 -7.437 -7.524 - <br /> 0.087 <br /> H2O 5.551e+001 9. 967e-001 1.744 -0.001 <br /> 0.000 <br /> C (-4) 0.000e+000 <br /> CH4 0.000e+000 0.000e+000 -132.534 -132.522 <br /> 0.011 <br /> C (4) 2.784e-003 <br /> HCO3- 2.42le-003 1.886e-003 -2. 616 -2.725 - <br /> 0.109 <br /> CaHCO3+ 1.225e-004 9.54le-005 -3. 912 -4.020 - <br /> 0.109 <br /> CO2 1.174e-004 1.206e-004 -3. 930 -3. 919 <br /> 0.011 <br /> NaHCO3 5.869e-005 6.025e-005 -4.231 -4.220 <br /> 0.011 <br /> MgHCO3+ 2.459e-005 1.899e-005 -4. 609 -4 .721 - <br /> 0.112 <br /> CaCO3 2.193e-005 2.252e-005 -4. 659 -4. 647 <br /> 0.011 <br /> CO3-2 8.824e-006 3.247e-006 -5.054 -5.489 - <br /> 0.434 <br /> NaCO3- 5.70le-006 4.402e-006 -5.244 -5.356 - <br /> 0.112 <br /> MgCO3 2.736e-006 2.809e-006 -5.563 -5.551 <br /> 0.011 <br /> Ca 1.014e-002 <br /> Ca+2 9. 914e-003 3.703e-003 -2.004 -2.431 - <br /> 0.428 <br /> CaHCO3+ 1.225e-004 9.54le-005 -3. 912 -4.020 - <br /> 0.109 <br /> TECHNICAL MEMORANDUM_V3.DOC 16 <br />