\\na.aecomnet.com\lfs\APAC\Christchurch-NZCHC1\Legacy\Projects\605X\60544823\6. Draft Docs\6.1 Reports\Waihi North\App F - PHREEQC Outputs\WNP_App F_PHREEQC_25.05.22.docx Revision 5 – 07-Aug-2020 Prepared for – Anderson Lloyd – Co No.: 5719274 3. Sorption of solution 1 to hydrous ferric oxides 4. Mix solution 2 (0.001 %) and 3 (0.999 %) 5. Equilibrium phases: Ferrihydrite, AlOHSO4, Goethite, k-jarosite, Siderite, Gypsum The long term speciation modelling inputs ran the following steps: 1. Solution 1 (backfilled porewater) was calculated 2. Solution 2 (Gladstone groundwater) was calculated 3. Mix solution 1 (0.999 %) and 2 (0.001 %) 4. Equilibrium phases: Goethite, Gypsum, AlOHSO4, Calcite 5. Sorption of hydrous ferric oxides
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