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Concrete Apron Locking Well Cover <br />' 0 <br />-� Slip Cap <br /> Neat Cement 2' Diameter Flush <br /> V' <br /> Bentonite Plug Threaded PVC Casing <br /> 5 <br /> 2' Diameter PVC 0.020 Screen <br /> 10 <br /> 2' Diameter Flush 12' Borehole Diameter <br /> Threaded PVC Casing <br /> F <br /> m� <br /> 15 - - <br /> Bentonite Plug --. <br /> 2a - <br /> 2/16 Silica Sand 21 Diameter PVC 0.020 Screen <br /> 25 - - - Plug <br /> r <br /> f <br /> t^ FIGURE 4 - SPARGING WELL Project No. <br /> Geological Audit Services, Inc. SP-94-07-1004-02 <br /> Enviionmeg/a/P�ofessiona/s LAMMERS ILLLE SCHOOL DISTRICT <br />� Yorba Linda-Sroddun V,.� 16555 W. Von Sosten Road <br />€� Tracy, CA <br /> Sept. 26, 1994 <br />