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MONITORING WELL CONSTRUCTION DETAILS <br /> Project Unocal Service Station No 5886 Monitoring Well No. MW-1 <br /> 2701 W March Lane Elevations <br /> Stockton, California Top of Riser. -084 <br /> Delta No D095-066 Ground Level -0.03 <br /> .—'PROTECTIVE CASING <br /> LOCKING WATERTIGHT CAP <br /> 71 FLUSH GRADE WELL CONSTRUCTION <br /> DIAMETER AND MATERIAL 12-inch steel <br /> TOTAL LENGTH 1 foot <br /> THICKNESS & TYPE OF SEAL. <br /> 1 foot concrete <br /> Lz <br /> "A— IAMETER, MATERIAL, & JOINT TYPE OF RISER PIPE <br /> 2-inch SCH 40 PVC, flush threaded <br /> TYPE OF BACKFILL AROUND RISER <br /> Neat cement <br /> L4 <br /> THICKNESS & TYPE OF SEAL 1 foot bentonite <br /> . •" D I STANCE OF FILTER SAND ABOVE TOP OF SCREEN I foot <br /> TYPE OF FILTER AROUND SCREEN Lonestar No 3 sand <br /> NITOP ING WELL MATERIAL Sch 40 PVC <br /> L3 <br /> GREEN GAUGE OR SIZE OF OPENINGS C SLOT SIZE) 0 020-Inch <br /> D 1 AMETER AND LENGTH OF SCREEN 2 Inches X 20 feet <br /> DEPTH TO THE BOTTOM OF MONITORING WELL 25 feet <br /> — <br /> DEPTH TO THE BOTTOM OF FILTER SAND 25 feet <br /> ' I THICKNESS & TYPE OF SEAL NA <br /> ham---� <br /> DIAMETER OF BOREHOLE 8 inches <br /> L1 = 0 5 FT MonitoringWell Water Level Measurements <br /> L2 = 4 5 FT Date Time Water Level* <br /> L3 = 200 FT 09/06196 11 06 am 745 <br /> L4 = 25 0 FT 09/09/96 1008 am 7 58 <br /> Installation Completed <br /> Date 09/04/96 <br /> Time 930am <br /> Measure Point Top of casing <br />