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MONITORING WELL CONSTRUCTION DETAILS _ <br /> PROJECT: Shell Station Pershing, Stockton DATE: 07-09-90 <br /> it PROJECT NO. : 89-016 WELL NO. : MW-1 <br /> I <br /> UNIVERSAL SURFACE BOX <br /> Diameter: 12" <br /> xzxzx xG.S . zxx Type (flush/above) : flush <br /> 4" PVC Pipe Length Above Ground: flush <br /> [ WATER PROOF LOCKING CAP Yes, Geostore <br /> f <br /> r <br /> STANDPIPE MATERIAL <br /> L2 Type Material: PVC Schedule 40 <br /> Diameter: 4" Inch <br /> t Joint Type: flush threaded <br /> t <br /> BACKFILL AROUND RISER <br /> Material Mix: Cement/Bentonite <br /> Total Depth From Surface: 26.5 feet <br /> 1 Total Thickness: 26.5 feet <br /> L BENTONITE SEAL <br /> Type: Volclay <br /> Size: 0.25 inch <br /> Total Thickness: 1.5 feet <br /> WELL SCREEN <br /> Type Material: PVC Schedule 40 <br /> L :17 Diameter: 4" inch <br /> . . : . Joint Type: flush threaded <br /> Slot Size: 0.020 inch <br /> Total Length: 20 feet <br /> L5 Depth to Bottom: 50 feet <br /> GRAVEL PACK <br /> ' . . 50 Type Material: #3 lonestar <br /> Total Thickness: 23 . 5 feet <br /> Depth to Bottom: 51.5 feet <br /> Distance Above Screen: 2 feet <br /> • TOTAL DEPTH OF WELL: 50 feet <br /> Ll 51. 5 ft_ TOTAL DEPTH OF BORING: 51. 5 feet <br /> L2 26. 5 ft. DIAMETER OF BORING: 10 inch <br /> ` L3 28 ft. METHOD OF DRILLING: HSA <br /> L4 50 ft_ DATE STARTED: 7-9-90 <br /> f L5 20 ft. DATE COMPLETED: 7-9-90 <br />