%0 Journal Article %T Estimation of In-Situ Groundwater Conditions Based on Geochemical Equilibrium Simulations %A Hokari %A Toshiyuki %A Iwatsuki %A Teruki %A Kunimaru %A Takanori %J - %D 2014 %R 10.13044/j.sdewes.2014.02.0002 %X Sa£żetak This paper presents a means of estimating in-situ groundwater pH and oxidation-redox potential (ORP), two very important parameters for species migration analysis in safety assessments for radioactive waste disposal or carbon dioxide sequestration. The method was applied to a pumping test in a deep borehole drilled in a tertiary formation in Japan for validation. The following application examples are presented: when applied to several other pumping tests at the same site, it could estimate distributions of the in-situ groundwater pH and ORP; applied to multiple points selected in the groundwater database of Japan, it could help estimate the in-situ redox reaction governing the groundwater conditions in some areas %K Groundwater %K Water conditions %K In-situ %K pH %K Oxidation-redox potential (ORP) %K Geochemical calculation %K Mineral-water interaction %U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=175151