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CASED WELL CONSTRUCTION DETAIL <br /> A Total Depth of Boring 110 ft <br /> oil B2 B Diameter of Boring 8 in <br /> E2 Drilling Method Hollow Stem Auger <br /> E � T <br /> hm C 132 Diameter of Boring 12 in <br /> f ` " ?' Drilling Method Hollow Stem Auger <br /> H C Top of Casing Elevation NA ft <br /> 0 Referenced to Mean Sea Level <br /> Referenced to Project-Datum <br /> D Casing Length 130 ft <br /> 12 D2 I Material Sch 40 PVC <br /> D2 Casing Length 110 ft <br /> F Material Steel <br /> J2 E Casing Diameter 2 in <br /> E2 Casing Diameter 85/8 in <br /> IF Depth to Top Perforations 100 ft <br /> L G Perforated Length 10 ft <br /> A Perforated Interval from 120 to 130 ft <br /> Perforation Size 002 in <br /> iH Surface Seal from 05 to 15 ft <br /> Seal Material Concrete <br /> I Backfill from 1 5 to 116 ft <br /> Backfill Material Neat Cement <br /> K 12 Backfill from 1 5 to 107 ft <br /> G — Backfill Matenal Neat Cement <br /> J Seal from 116 to 118 ft <br /> Seal Material Bentonite <br /> J2 Seal from 107 to 110 ft <br /> Seal Material Bentonite <br /> K Gravel Pack from 118 to 130 ft <br /> Pack Material #3 sand <br /> B L Bottom Seal NIA ft <br /> Seal Material <br /> Notes Depths measured from initial ground surface Centralizers <br /> will be used during installation M Traffic Graded Steel Well Cover <br /> • �+ Proposed Well Location Map FIGURE�.7 ETTLER- RYAN, INC Tosco(76) Station# 11192 <br /> 6747 sierra ct suite J (925}551-7555 1403 Country Club Boulevard 7 <br /> Dublin CA 94568 Stockton, California <br /> JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br /> 14024512 JS 03/20/03 <br />