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WELL CONSTRUCTION DIAGRAM BL AU <br /> PROJECT NUMBER 002-70950-01 BORING 1 WELL NO MW-5A&B <br /> PROJECT NAME U-Haul#709-50 TOP OF CASING ELEV <br /> LOCATION _ 2701 N Wilson Way GROUND SURFACE ELEV <br /> Stockton, CA DATUM <br /> WELL PERMIT NO INSTALLATION DATE 1/13/2000 <br /> A B EXPLORATORY BORING <br /> g a Total depth 72 ft <br /> b Diameter 12 in <br /> Drilling method Hollow Stem Auger <br /> h WELL CONSTRUCTION <br /> e <br /> c Total casing length A 72 ft B 50 ft <br /> Material Poly-Vinylchloride <br /> d Casing Diameter A 2 in B 2 in <br /> e Depth to top of screen A 52 ft B 25 ft <br /> f Screen Interval A 52 ft to 72 ft <br /> Screen Interval B 25 ft to 50 ft <br /> f 1 a Perforation type Machine slot <br /> Perforation size 0 020 inch <br /> g Surface seal 1 ft <br /> Seal material Cement <br /> i h Backfill 22 ft <br /> 7 Backfill material Cement Grout <br /> i Seal A 50 ft B 51 ft <br /> Seal material Bentonite <br /> f Sand pack A 21 ft B 28 ft <br /> f Sand Pack interval A 51 ft to 72 ft <br /> f Sand Pack interval B 22 ft to 50 ft <br /> Pack material 10-20 Sant! <br /> k Bottom seal None <br /> Seal material None <br /> I Depth to groundwater 46 ft <br /> 2 k below ground surface <br /> b <br />