Freshwater resources are very limited in the world. To preserving freshwater quality is important for public health and for aquatic life. Today, water quality issues have become a significant concern due to the growth of population, urban expansion and technological development. Groundwater is the major source for drinking and domestic purposes in both rural and urban areas. Besides, it is an important source for both agriculture and industrial sectors. Groundwater studies involve teamwork and having respecting insights from different discipline and sharing in uncertainties and ambiguities. The number of groundwater investigations throughout the world continues to increase. The important aim of this book is to primary focus on issues related to our country's growth, needs of freshwater requirement and also to foster a strong cooperation among industry, academic institutions and research institutes. We earnestly believe that the book will benefit all the academicians, industry peoples and researchers in the field of hydro-geochemistry, water quality and water resources management.