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i MONITORING WELL CONSTRUCTION DETAILS <br /> I PROJECT: Shell Station Pershing, Stockton DATE: 07-10-90 <br />{ PROJECT NO. : 89-016 WELL NO. : MW--2 <br /> 1 UNIVERSAL SURFACE BOX <br /> Diameter: 12" <br /> zxzzx zG.S- ZZZ Type (flush/above) : flush <br /> 4" PVC Pipe Length Above Ground: flush <br /> WATER PROOF LOCKING CAP Yes, Geostore <br /> STANDPIPE MATERIAL <br /> L2 Type Material : PVC Schedule 40 <br /> Diameter: 4" Inch <br /> Joint Type: flush threaded <br /> BACKFILL AROUND RISER <br /> Material Mix: Cement/Bentonite <br /> Total Depth From Surface: 23 feet <br /> 1 Total Thickness: 23 feet <br /> • <br /> BENTONITE SEAL <br /> _ Type: Volclay <br /> Size: 0. 25 inch <br /> Total Thickness: 2 .0 feet <br /> a 4.! 411H <br /> •IIH IHM <br /> WELL SCREEN <br /> Type Material: PVC Schedule 40 <br /> L Diameter: 4" inch <br /> Joint Type: flush threaded <br /> Slot Size: 0.020 inch <br /> Total Length: 20 feet <br /> 5 Depth to Bottom: 45 feet <br /> GRAVEL PACK <br /> Type Material:yp #3 lonestar <br /> Total Thickness: 22.5 feet <br /> Depth to Bottom: 45.5 feet <br /> Distance Above Screen: 2 feet <br /> i <br /> . TOTAL DEPTH OF WELL: 45 feet <br /> L1 45. 5 ft. TOTAL DEPTH OF BORING: 45. 5 feet <br /> L2 21 ft. DIAMETER OF BORING: 10 inch <br /> L3 23 ft. METHOD OF DRILLING: HSA <br /> L4 45 ft. DATE STARTED: 7-9-90 <br /> L5 20 ft, DATE COMPLETED: 7-10-90 <br />