Abstract: The ground subsidence phenomena at a site are investigated in this paper. Geological conditions are analyzed through regional geology maps, hydro\|geological profiles and historical boring information in the region. The distribution of the subsided area, settlement contours, quantities of groundwater extractions for industrial and residential needs, groundwater level underneath the subsided area and deformation of the building structures were monitored over an extended period of time. The monitoring data suggest that the ground subsidence was induced by excessive extraction of groundwater for fishing ponds. The consolidation of saturated soils resulted in differential settlement of the ground.