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Ground surface <br /> Grout ___ ___ Gravel fill pipe <br /> (0-106 feet) _= -F:-. Schedule 80 PVC, <br /> -- --- 2-inch (0-110 feet) <br /> --- --- --- Schedule 80 PVC, <br /> _ =- 8-inch well casing <br /> -- --- (0-112 feet) <br /> Bentonite seal <br /> Transition sand (106-109 feet) <br /> (#30 mesh or equivalent) <br /> (109-110 feet) <br /> Sand (filter) pack <br /> (#3 Monterey sand or <br /> equivalent) (110-132 feet) <br /> Type 304 Stainless steel <br /> wire-wrapped <br /> 8-inch screen, <br /> 0.02 in slot <br /> (112-122 feet) Sump <br /> (122-127 feet) <br /> Stainless Steel End Cap <br /> Borehole total <br /> depth (132 feet) <br /> Note: Not drawn to scale <br /> Figure <br /> EWC6 and EWC7 Well Construction Diagram <br /> Groundwater Well Installation Work Plan Q <br /> Sharpe Army Depot, Lathrop,California �J <br />