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WEGE WELL CONSTRUCTION LOG <br /> PROJECTNAME REGAL STATION 603 MONITOR WELL NUMBER MW-4 <br /> 6425 PACIFIC AVENUE STOCKTON CA TOP OF CASING ELEVATION 9 51' <br /> PROJECT NUMBER DATE COMPLETED 2-17-89 <br /> WELL TYPE MONITOR WELL (WATER) <br /> REMARKS- 12 BAGS CLEAN x3 MONTEREY SAND, 112 BUCKET BENTONITE PELLETS, 10 <br /> BAGS NEAT CEMENT WITH 5% BENTONITE POWDER 30' of 4- SCH 480 0 02- SLOTTED PVC <br /> CASING, 35' OF 4- SCH 480 BLANK PVC CASING, 1 WATER TIGHT SECURED TRAFFIC BOX <br /> TYPICAL MONITORING WELL <br /> i WELL CONSTRUCTION <br /> 7 I 1 Total Depth of hole 65' <br /> 2 Diameter of boring 10" <br /> 8 3 Casing length 65' <br /> 5 4 <br /> 4 Diameter of casing 4- <br /> 5 Depth to top of screen 35' <br /> 9 _ 6 Length of screen 30' <br /> _ 10 screen Interval 36'-65- <br /> screen type machine cut slot <br /> - 1 screen size 0 02. <br /> 3 <br /> 7 Surface seal 0-1 5' <br /> seal material concrete <br /> 11 6 8 Backfill material 1 5'-28' <br /> seal material Neat cement <br /> 9 Upper seal <br /> seal material <br /> 10 Lower seal 28'-29- <br /> seal <br /> 8'-29seal material Bentonite Pellets <br /> 2 11 Annulus 29'-65' <br /> material Clean *3 Monterey sand <br /> NOTE: Each well constructed with poly-vinyl chloride (PVC) <br /> casing with threaded bottom caps and threaded top caps <br /> Also, PVC steam cleaned before constructing each well <br /> Traffic boxes are water tight and locked for security <br /> • <br />