Hydrogeological and water chemistry investigation of Tavşanlı (Kütahya) plain

In this study, geological, hydrogeological and hydrogeochemical characteristics of the tavşanlı (kütahya) and its surroundings were investigated in detail. the rock units are observed with different age and lithology in the paleozoic-quaternary periods of time in the study area. the most important surface water and groundwater reservoirs are orhaneli river and alluvium, limestone and tuff units, respectively. in the region groundwater level ranges from 1.5 m to 25 m. while groundwater flow direction is towards the west in the east of the plain; it is towards the northeast in the southern part of the plain. in order to determine hydrogeochemical features of the water resources, hydrochemical analyses of the surface water and groundwater samples were performed. according to the obtained results, water resources are ca-mg-hco3, mg-hco3 and na-hco3 facies.