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Ank .Milk <br /> Concrete Well Apron (Nominal 2-feet <br /> Locking Well Cover — Diameter, 3-inches Thick at Surface, <br /> and Extending 12-inches Minimum <br /> \ Below Surface.) <br /> Traffic Vault <br /> r <br /> `Ground Surface <br /> 10-inch Diameter Borehole <br /> VADOSE <br /> ZONE <br /> Cement/Bentonie Grout Seal <br /> 2 feet Seal of Bentonite Pellets <br /> (Hydrated) or Slurry <br /> 2 feet Blank PVC Casing (Schedule <br /> 40 PVC Non-slotted Casing) <br /> 4-inches in diameter. <br /> Filter Pack: 2/16 or Equivalent <br /> SHALLOW WATER <br /> BEARING UNIT <br /> 10 feet <br /> Well Screen (Schedule 40 PVC <br /> Screen with 0.020-inch Factory-cut <br /> Slots) 4-inches in Diameter. <br /> ' Well Cap/Sediment Trap <br /> Total Depth of Well = approximately 20 feet bgs <br /> Project No.: Figure No.: <br /> 05,00469 3 CONSTRUCTION SCHEMATIC <br /> Scale: No Scale Page No.: e� � FOR MONITORING WELLS <br /> File No.: Drown B ► '(�;�i'll <br /> D4000526 By: <br /> Decker i 1�7, SOUTHERN PACIFIC TRANSPORTATION COMPANY <br /> OLD TRACY YARD <br /> Dote: Approved By: TRACY, CALIFORNIA <br /> 07/08/85 Krys Hardman <br />