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Existing Grade j <br /> lip <br /> Vault box <br /> Concrete <br /> w wA <br /> A <br /> ^ w� <br /> Cement Grout <br /> w <br /> w <br /> ^ w 2-inch Sch. 40 PVC Blank <br /> w ^w <br /> w <br /> ww <br /> w" <br /> ww <br /> w w <br /> 30 tees <br /> Zeus of Bentonite Clay <br /> I <br /> i>neloatsltr Iden" ied Sand pack <br /> 2-inch Sch. 40 PVC <br /> Cowgamawa[f011 23 feet* <br /> I <br /> 1 <br /> Existing Well Construction t <br /> Water Work Proj, No. 60248-1 <br /> w <br /> ^ <br /> Cement grout backfill from 82 Feet to <br /> • about 30 Feet Below Surface <br /> w ww <br /> w <br /> w <br /> w <br /> I <br /> Borehole, <br /> Note: This well detail is schematic only nominal 8" diameter <br /> for the proposed modification. <br /> The backfill will use a thin oement grout <br /> to backfill the open slotted casing and <br /> enter the sand pack. � <br /> Existing Vadose Well Project No. 4062-R <br /> Modification Scale: Schematic, <br /> except where shown <br /> Linden/Waterloo School Date: June, 1995 <br /> 7007 Pezzi Road <br /> Stocltt n,CA Figure 3 <br />