Bulletin, Ausgabe 68

12 Pumping 20 Pumping level 60 feet Alexander County Analysis average yield basic rocks bedrock Bicarbonate HCO3 Brookford Catawba County China Grove Cleveland composite gneiss Conover County showing location Creek Davidson County Davie County Denton Depth eter diorite Diorite Diorite Diorite Diorite-granite Dissolved solids Drawdown drilled feldspar Flat Fluoride F fractures gabbro Gabbro-diorite gallons a minute geologic map granite and diorite Granite gneiss ground water ground-water Hickory Hill Iredell County Iron Fe level 100 feet level 60 Lexington Magnesium Mg Maiden Mica schist miles NW mineral Mocksville Mooresville municipal Newton pleted raphy ft Pumping level 100 residuum Rock type Rowan County Salisbury schistose Silica SiO2 Slate belt Slope South Yadkin River Southmont Statesville area streams Sulfate SO4 supply SW of Brookford Taylorsville Temperature Thomasville Topog topographic location Total hardness Troutmans Tuff type of rock U. S. Geological Survey Valley volcanic rocks water level water table weathered Yadkin River