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7 —777- <br /> 77 <br /> ' WELL COVER . + SURFACE SEAL <br /> Surface Seal Depth 0 to 1.0 Feet <br /> CONCRETE 4 Surface Seal Material Concrete <br /> ' +a . <br /> e d <br /> ' SANITARY SEAL <br /> Depth of Seal 1.0 to 3.0 Feet <br /> ' SANITARY SEAL Seal Material Neat Cement Grout <br /> BLANK CASING <br /> BENTONITE SEAL <br /> Depth of Seal 3.0 to 4.0 <br /> Seal Material Bentonite <br /> ' BENTONITE <br /> FILTER PACK <br /> ' Depth of Filter Pack 4.0 to 20.0 Feet <br /> Filter Pack Material #3 Sand <br /> FILTER PACK WELL CASING <br /> Casing Length 20.0 Feet <br /> Depth of Blank 0 to 5.0 Feet <br /> Depth of Screen 5.0 to 20.0 Feet <br /> Casing Diameter 2—Inch <br /> Casing Material Schedule 40 PVC <br /> ' SCREENED CASING Perforation Size 0.020 Inch Slot <br /> BOTTOM PLUG <br /> ;.; Depth to Bottom Plug 20.0 Feet <br /> tBottom Plug Material PVC Cop <br /> BOTTOM PLUG <br />' BOREHOLE <br /> MONITORING WELL MW-5 Depth of Boring 21.0 Feet <br />' Diameter of Boring 8—Inch <br /> COMPLETED 9-3-99 Drilling Method Hollow Stem Auger <br />' WELL CONSTRUCTION DIAGRAM <br /> VALLEY SHOWCASE JJVV GEOSCIEnICES, INC. <br />' CONSULTANTS <br /> 901-921 W. FREMONT STREET ENVIRONMENTAL <br /> STOCKTON, CALIFORNIA 11350 MDNIER PARK PLACE-RANCw CORDOVA. CA 95742 <br />