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Groundwater Monitoring Well <br />Construction Diagram <br />Groundwater Well Installation Work Plan <br />Sharpe Army Depot, Lathrop, California <br />Figure <br />14 <br />Ground surface <br />Schedule 40 PVC, <br />4-inch well casing <br />Grout <br />Bentonite seal <br />(3-foot length) <br />#3 Sand (filter) pack <br />(3 feet above top of screen <br />to total boring depth) <br />#30 Transition sand <br />(1 to 2-foot length) <br />Schedule 40 PVC, 4-inch <br />0.01-inch slotted screen <br />(10-foot length) <br />Note: Not drawn to scale <br />End Cap