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MONITORING WELL CONSTRUCTION DETAILS <br /> Project Unocal Service Station No 5886 Monitoring Well No MW-3 <br /> 2701 W March Lane Elevations: <br /> Stockton, California Top of Riser- -0.14 <br /> Delta No D095-066 Ground Level 003 <br /> 01—PROTECTIVE CASING <br /> LOCKING WATERTIGHT CAP <br /> FLUSH GRADE WELL CONSTRUCTION <br /> DIAMETER AND MATERIAL 24-inch steel <br /> TOTAL LENGTH 1 foot <br /> THICKNESS & TYPE OF SEAL 1 foot concrete <br /> L2 <br /> IAMETER, MATERIAL, & JOINT TYPE OF RISER PIPE <br /> 2-inch SCH 40 AVC, flush threaded <br /> TYPE OF BACKFILL AROUND RISER <br /> Neat cement <br /> L4 <br /> THICKNESS & TYPE OF SEAL 1 foot bentonite <br /> '�—O I STANCE OF FILTER SAND ABOVE TOP OF SCREEN 3 foot <br /> TYPE OF FILTER AROUND SCREEN <br /> Lonestar No 3 sand <br /> N I TOR I NG WELL MATEP I AL Sch 40 PVC <br /> L3 <br /> GREEN GAUGE OR SIZE OF OPEN I NG5 SLOT SIZED 0 020-Inch <br /> O I AMET5R AND LENGTH OF SCREEN 2 Inches X 20 feet <br /> DEPTH TO THE BOTTOM OF MONITORING WELL 25 feet <br /> �---DEPTH TO THE BOTTOM OF FILTER SAND 25 feet <br /> I ��-4THICKNESS & TYPE OF SEAL NA <br /> F 1 DIAMETER OF BOREHOLE 8Inches <br /> Li = 0 5 FT Monitorin Well Water Level Measurements <br /> L2 = 4 5 FT Date Time Water Level' <br /> L3 = 200 FT 09/06/96 11 40 am 8 16 <br /> L4 = 25 0 FT 09/09/96 10 03 a m 8 10 <br /> Installation Completed <br /> Date 09/04/96 <br /> Time 10 50 a m Deft <br /> �'" Measure Point Top of casing <br />