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WELL CONSTRUCTION DETAIL <br /> M <br /> E C <br /> A Total Depth of Boring —75 ft <br /> • H <br /> . ' , ti • B Diameter of Boring —8 in <br /> Drilling Method — Hollow-Stem Auger <br /> C Top of Box Elevation —ft <br /> I D Casing Length — 75 ft <br /> F Material — Schedule 40 PVC <br /> E Casing Diameter—2 in <br /> F Depth to Top Perforations—65 ft <br /> G Perforated Length— 10 ft <br /> D Perforated Interval from 65 to 75 ft <br /> A Perforation Type — Machine Slotted <br /> Perforation Size—0 02 in <br /> H Surface Seal From 0 to 1 5 ft <br /> Seal Material — Concrete <br /> ! Backfill From 1 5 to 59 ft <br /> G =_ <br /> K Backfill Material —Neat Cement <br /> J Seal From 59 to 63 ft <br /> Seal Material — Bentonite <br /> K Gravel Pack From 63 to 75 ft <br /> Pack Material — Lonestar#3 <br /> L Bottom Seal — None <br /> L M Vault box, locking well cap, <br /> i and lock <br /> B <br /> Note Depths Measured From initial Ground Surface <br />. Cae ttler - Ryan Inc, Proposed Monitoring Well Construction iyatlalil FIGURE <br /> Former Unocal Station#0187 <br /> 3164 Gold Camp Drnre, Suite zoo 437 East Miner Avenue 4 <br /> Rancho Cordova. CA 95670 Stockton, Califomia <br /> JOB NUMBER REVIEWED BY DATE REVISION DATE <br /> 240042 9100 <br />