The data of the long term hydro-pressure monitoring on Tono regional hydrogeological study project from fiscal year 2005 to fiscal year 2008

Tono Geoscience Center (TGC), Japan Atomic Energy Agency (JAEA) has been conducting a wide range of geoscientific research in order to build scientific and technological basis for geological disposal of nuclear wastes. This study aims to establish comprehensive techniques for the investigation, analysis and assessment of the deep geological environment in fractured crystalline rock. Tono Regional Hydrogeological Study (RHS) project is a one of the geoscientific research programme at TGC. This project started since April, 1992 and main investigations were finished to March 2004. Since 2005, hydrogeological and hydrochemical monitoring are continued by the existing monitoring system. This paper describes the results of the long term hydro-pressure monitoring from April, 2005 to March, 2008. And the data is attached in DVD-ROM. A DVD-ROM is attached as an appendix. (J.P.N.)