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' lnsfallafion of flush Grade <br /> Moniforing Well <br /> PROJECT: Beacon Station #4<14 MONITORING WELL NO.: MW--2 <br /> 2185 East Fremont Street ELEVATION: 19.53 feet <br /> Stockton, California <br /> Protective CasTng <br /> 6 Locking Water Tight Cap <br /> Flush Grade Well Construction <br /> Diameter and Mat'l 12—Inch ateei <br /> Total length 12 Inches <br /> ' Length Above Ground 1/4 inch <br /> Thickness and Typo 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 <br /> Type of Backfill cement <br /> Around Rfser 57. <br /> bentonite grout <br /> Thickness and Type 2 feet <br /> J of Seal bentonite chips <br /> Dlstcnce of Filter Sand 2 feet <br /> Above Top of Screen <br /> ' Type of Filter f3 lonestar <br /> Around Screen <br /> Monitoring Well Mat'I SCF! 40 PVC <br /> ' Screen Gauge/Slot Size 0.020 Inch <br /> J <br /> Diameter and Length 4 inch, 15 feat <br /> of Screen <br /> PEI <br /> ' Depth to Bottom 83 feet <br /> of Monitoring Well <br /> ' Depth to the Bottom 83 feet <br /> I E of Filter Sand <br /> I 10 In <br /> ' I I114 <br /> L1= 0.25 feet MONITORING WELL WATER LEVEL MEASUREMENTS <br /> L2= 67.75 feet DATE TIME WATER LEVEL* <br /> L3- - 15.0 feet <br /> L4= 83.0 feet 4_17_92 2:45 72.02 <br /> Approximate Depth to <br /> Groundwater 72 feet *Measurfng Point Top of casing <br /> ' ACTON • MiCKELSON VAN DAM, INC. <br />