Water utilization.__________________ ________________________ 10 Geologic setting.________________________________________________ 11 Geolo gic units and their water-bearing properties ________ _ ___________ 12 Consolidated sedimentary rocks of Paleozoic age_________________ Consolidated sedimentary rocks of Mesozoic age__________________ Silicic volcanic rocks of Tertiary and Quaternary (?) age ____________ Basalt of Tertiary and Quaternary (?) age_ __ _ __ _ ____________ Alluvial-fan deposits and alluvium of Quaternary age_.________ 17 Hydrologic properties of the alluvial aquifer.___ ____________ 18 Glacial deposits of Quaternary age__ _______ _ ___ Loess of Quaternary age_________________________ Water resources. ____ __ __ ___ Surface water________________________________________________ Ground water____ ____ _______ __ The water table._________________________ Recharge._____ _________________________________________ Discharge ________________ _ ____________________________ _ Chemical quality of ground and surface waters _______ _ ______ __ Water quality in relation to source_______________________ Water quality in relation to use___________________________ Potential water supply.______ _ ______ ___________ ___ Water-development possibilities.____________________________________ Effects of pumping.__________________________________________ Well hydraulics._________ ______________________________ 40 Construction and development of wells___________________________ Summary____ _______ ________ _________ References_ ______________________________________________________