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WELL CONSTRUCTION DETAIL <br />A Total Depth of Boring 65 <br />ft. <br />B Diameter of Boring 8 <br />n. <br />Drilling Method Hollow -Stem Auger <br />C Top of Box Elevation <br />ft. <br />Referenced to Mean Sea Level <br />Referenced to Project -Datum <br />D Casing Length 65 <br />ft. <br />Material Schedule 40 PVC <br />E Casing Diameter 2 <br />n. <br />F Depth to Top Perforations 45 <br />ft. <br />G Perforated Length 20 <br />ft. <br />Perforated interval from 45 to 64 <br />ft. <br />Perforation Size 0.02 <br />n. <br />H Surface Seal from 0 to 1.5 <br />ft. <br />Seal Material Concrete <br />I Backfill from 1.5 to 41 <br />ft. <br />Seal Material Neat Cement <br />J Seal from 41 to 43 <br />ft. <br />Seal Material Bentonite <br />K Gravel Pack from 43 to 65 <br />ft. <br />Pack Material Lonestar #3 Sand <br />L Bottom Seal None <br />ft. <br />Seal Material <br />I& <br />Note: Depths measured from initial ground surface. <br />Proposea well construction uetan FIGURE <br />Gettler - Ryan, Inc. Former Chevron Service Station #9-5775 <br />6747 Sierra Ct., Suite J (925) 551-7555 301 West Kettleman Lane 4 <br />V1 Dublin, CA 94568 Lodi, California <br />JOB NUMBER REVIEWED BY DATE REVISED DATE REVISED DATE <br />346408.09 3/00 <br />