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i <br /> i <br /> Nw Concrete Apron Locking Well Cover <br /> 0 <br /> Slip Cap <br /> Concrete Seal 2"Diameter Flush <br /> Threaded PVC Casing <br /> 10 <br /> 20 8'Borehole Diameter <br /> 30 <br /> Bentonite Plug <br /> i 2'Diameter PVC 0.020 Screen <br /> t 50 ##3 Si!ica Sand . <br /> 60 FEET Plug <br /> FIGURE 4 - WELL DESIGN Project No. <br /> Geological Audit Services, Ganzer Project <br /> Yorba Linda•Stockton CV 30-34E2-L6. <br /> 521 N.Cherokee Lane <br /> Lodi,California. 10 July 1991 <br />