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Ground surface <br /> Grout ► ----- ------ <br /> -_ ---- Schedule 40 PVC, <br /> 4-inch well casing <br /> Bentonite seal <br /> #30 Transition sand (3-foot length) <br /> (1-foot length) <br /> #3 Sand (filter) pack <br /> (2 feet above top of screen <br /> to total boring depth) <br /> Schedule 40 PVC,4-inch <br /> 0.01-inch slotted screen <br /> (10-foot length) <br /> End Cap <br /> Note: Not drawn to scale <br /> Groundwater Monitoring Well Figure <br /> Construction Diagram <br /> Groundwater Well Installation Work Plan 12 <br /> Sharpe Army Depot, Lathrop,California <br />