Abstract
This study clarifies the relation between activity location and groundwater infiltration. A new index (water supply footprint index: WSFP) is introduced to evaluate area-based self-sufficiency of water supply by use of groundwater infiltration. Four areas with different planning conditions are designated for case studies. For present conditions, the WSFP in the planned area is higher than that of the unplanned area with farmlands. However, results show that efficiencies of improvement, by introducing a watersupply network or new facilities for infiltration, are high in the planned area than in unplanned area.
