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Ground Surface Graded for <br /> Drainage Away from Vault <br /> Lock Anchors For oncrete Vault <br /> Vault Lid <br /> 7 7V 'A Ar <br /> y Cement Grout <br /> Contaminated Zone V ` AO S L <br /> 7 Conductor Casing <br /> 1P YJ V <br /> Blank Casing olf -e /t <br /> 11 7 <br /> Conductor Casing Seated C <br /> r 12 to 18 Inches Into <br /> 3-4 Inch Annulus Low Permeability Stratus <br /> Below Contaminated Zone <br /> Minimum 3 Foot Bentonite Sea: <br /> Interior/Exterior Flush f t— Gravel Pack Placed 18 to 2- <br /> Threaded Coupling 0 Inches Above Top of <br /> �• '• Well Screen <br /> • <br /> Well Screen <br /> Gravel Pack <br /> O � <br /> Centralizer • <br /> • <br /> • Casing in Susnensio:. , Not -- i:g <br /> on E"le Bottom) <br /> FIGURE 111-8 <br /> Completion of Piezometer of Shallow Monitor Well <br /> in Contaminated Vadose Zone <br /> i <br /> -83- <br />