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Ground Surface Graded for <br /> Drainage Away From Vault <br /> Discharge Hose <br /> Gate Varve Switch Box. <br /> Sampling <br /> Port <br /> Concrete Vault--4b <br /> n B Lock Anchors for <br /> © Vault Lid <br /> 1 r 4 <br /> ` 7 <br /> Contaminated Zone Sanitary Seal <br /> L • lank Casing <br /> F -? ;; v *7 7 Lle A ' Conductor Casing <br /> 3-4. Inch AnnulusA S ' Power Line <br /> y ^y Conductor Casing Seated <br /> 12 to 18 Inches Into <br /> _ V Low Permeability Strstum <br /> Below Contaminated Zone <br /> Y <br /> Gravel Filler Pipe 57 � <br /> AV <br /> Air Lite For Sounding Pump Pipe <br /> i <br /> � 7L <br /> y A Cement Grout <br /> Locator Block <br /> a <br /> y7 <br /> Minimum 3 Foot Bentonite Seal <br /> Gravel Pack Placed 18 to 24-40' •'4' <br /> Inches Above Top of �• Gravel Pack <br /> 'dell Screen • • <br /> O o . <br /> Casing in Suspension,( Not Resting , y •o Centralizer <br /> On Hole Bottom .o <br /> FIGURE 111-10 <br /> Completion of Deep Monitor Well (with Dedicated <br /> Pump) in Contaminated Vadose Zone <br /> -85- <br />