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MONITORING WELL. <br /> CONSTRUCTION DETAILS <br /> PROJECT' BEACON STATION J494 MONITORING WELL NO ' MW-5 <br /> 2185 E FREMONT ST ELEVATION 1 a is ft <br /> ' STOCKTON, CA <br /> Protective Casing <br /> 8 Locking Water Tight Cap <br /> Flush Grade Well Construction <br /> Diameter and Mat'I 12—inch steel <br /> Total length 12 Inches <br /> Length Above Ground 1/2 inch <br /> Thickness and Type of Seal 2 feet, concrete <br /> Diameter. Mat'I and 4 Inch, SCH 40 PVC, <br /> Joint Type of Riser Pipe flush thread <br /> N <br /> J Type of Backfill <br /> cement/ gy; <br /> Around Riser <br /> bentonite grout <br /> Thickness and Type 2 feet <br /> _j of Seal bentonite chips <br /> Distance of Filter Sand 2 feet <br /> Above Top of Screen <br /> Type of Filter #3 lonestor <br /> Around Screen <br /> Monitoring Well Mat'I SCH 40 PVC <br /> n Screen Gauge/S1of Size 0 020 Inch <br /> J <br /> Diameter and Length 4 inch, 15 feet <br /> of Screen <br /> Depth to Bottom 87 5 feat <br /> of Monitoring Well <br /> Depth to the Bottom 87 5 feet <br /> y <br /> of Filter Sand <br /> 10 in <br /> L1 = 0 25 ff I <br /> L2 = 72 25 ft MONITORING WELL WATER LEVEL MEASUREMENTS <br /> L3 = 15 ft <br /> L4 = 87 5 ft DATE TIME WATER LEVEL* <br /> 12-14-92 11 40 77 41 ft <br /> COMPLETED 11 15 12_g-92 • <br /> Measuring Point Top of casing <br /> ACTON * MICKELSON • VAN DAM, INC. <br />