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Well Construction Data <br /> for Selected Wells Located in the Study Area _— <br /> Lincoln Center, Stockton, California <br /> Estimated Boring Top-of- Conductor Conductor Well <br /> Drilling Screened' Diameter, Depth of Casing Casing Casing Casing Well Casing Well Casing Screen :Fiflterck Filter Silt Trap SealDate Subcontractor/ Geologic inches(depth, Boring Elevation Diameter Depth Diameter Material, Material,Screen Interval l Pack Interval IntervalWell ID Installed Consultant Unit feet bgs) (feet bgs) (feet MSU (inches) (feet bgs) (inches) Blank (slot size,inches) (feet bgs) ) Size (feet bgs) (feet bgs) <br /> MW-2048 ]/9-]/17/97 Weeks Drill:n7/LFR B zone 18(0-102); 131 11.8] 10.75 103 a Sch.40 PVC Stainless Steel(0.010) 110-125 109-131 !FE <br /> 0-109 <br /> 10(102-131) <br /> MW-2056 8/11- Weeks Drilling/LFR Bzone 18(0-82);9.9 109 11.79 10.75 83.7 4 Sch.40 PVC Stainless5leel(0.070) 85.4-100.4 85-105.7 85 <br /> 8/12/97 (82-109) <br /> MW-300C 4/24-5/5/9] Weeks Drilling/LFR C zone 24(0-67);17.1 188 11.54 18;10.75 69;144.3 4 Stai"less Steel Stainless 5teel(0.010) 152-182 150.3-188 50.3(67-143.5);8.75 <br /> (143.5'-188') <br /> 7/15- Weeks Drilling/LFR Czone 24(0-104.7);17 191 11.21 18;1075 105]; 143.5 4 Aainless5teel S1einless5teel(0.020) 152-182 149.5-191 49.5 <br /> 8/20/97 (104.7-140);9.9 <br /> (140-191) <br /> Notes: <br /> Interpretation based on comparison to data collected from the Site(LFR 1996a) <br /> Abbreviations: <br /> bgs-below ground surface <br /> K)C- Kennedy Jenks Chilton,Inc. <br /> LFR-Levine Fricke Recon,Inc. <br /> LH - Leedshill-Herkenhoff,Inc. <br /> MSL-mean sea level <br /> 7)/a-not applicable <br /> PVC-polyvinyl chloride <br /> • <br /> TABLE 5-well construction data/All Wells 2 of 2 <br /> 12/16/97 <br />