2016 Volume 67 Issue 6 Pages 183-208
Groundwater level and groundwater temperature have continuously been monitored at 16 sites in the Aizu Basin, Fukushima Prefecture. Groundwater level, which declined by pumpage for snow-melting in winter around the urban areas, gets recovered in summer. However, it cannot necessarily reach to its level of previous years. In these sites, water balance may be deficit. Groundwater temperature in some deep wells declined year by year. This is because groundwater in shallow aquifer is drawn downward by decline of groundwater level in deep wells in winter. In this region, groundwater temperature is considered to be affected by not only thermal conductivity but also the induced groundwater flow by artificial pumpage.