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' INSTALLATION OF FLUSH GRADE MONITORING WELL <br /> Project Country Club Exxon #7-3708 Monitoring Well No MW-6 <br /> 2705 Country Club Blvd Elevations <br /> Stockton, CA Top of Riser -051 <br /> Delta No 40-91-838 Ground Level --- <br /> PROTECTIVE CASING <br /> -LOCKING WATERTIGHT CAP <br /> ' FLUSH GRADE WELL CONSTRUCTION <br /> D I AMETEK AND MATERIAL 8-inch steel <br /> TOTAL LENGTH 12 inches <br /> ' THICKNESS & TYPE OF SEAL 12 inch concrete <br /> ' Lz <br /> I AMETEK, MATERIAL & JO!NT TYPE OF RISER PIPE 4-inch dram PVC slush threaded <br /> ' TYPE OF BACKFILL AROUND RISER <br /> Portland cement with bentonite <br /> L4 <br /> 'y THICKNESS & TYPE OF SEAL <br /> 2 foot bentonite seal <br /> DISTANCE OF FILTER SAND ABOVE TOP OF SCREEN 3 5feet <br /> TYPE OF FILTER AROUND SCREEN 2/12 Sand <br /> ' <br /> La ONITORING WELL MATERIAL PVC <br /> GREEN GAUGE OR SIZE OF OPENINGS CSLOT SIZED 0 010-Inch <br />' DIAMETER AND LENGTH OF SCREEN 4 Inch dram , 15 feet <br />' DEPTH TO THE BOTTOM OF MONITORING WELL 25 feet <br /> THE BOTTOM OF FILTER SAND 25 feet <br />' THICKNESS & TYPE OF SEAL N/A <br /> i <br /> ~ — DIAMETER OF BOREHOLE 25 inches <br /> L1 = 05 FT MonitoringWell Water Level Measurements <br /> L2 = 9 5 FT Date Time Water Level' <br /> L3 = 150 FT 02/11/92 1 16pm 13 56 feet <br /> L4 = 2 5 0 FT <br /> Installation Completed <br /> Date --2_2/11/92 <br /> Time 11 18 a m Def#a <br /> * Measure Point Top of casing _ T <br />