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EWA1R Well Construction DiagramGroundwater Well Installation Work PlanSharpe Army Depot, Lathrop, California <br />Figure15 <br />Ground surface <br />Gravel fill pipeSchedule 80 PVC, 2-inch(0-28 feet) <br />Schedule 80 PVC,8-inch well casing(0-30 feet) <br />Grout(0-24 feet) <br />Bentonite seal(24-27 feet) <br />Sand (filter) pack(#3 Monterey sand or equivalent)(28-50 feet) <br />Sump(40-45 feet) <br />Transition sand(#30 mesh or equivalent)(27-28 feet) <br />Type 304 Stainless steelWire-wrapped 0.02 in slot8-inch screen(30-40 feet) <br />Borehole total depth(50 feet)Note: Not drawn to scale <br />Stainless Steel End Cap