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1 <br /> ' Inslallalion of Flush Grade <br /> Monitoring Well <br /> PROJECT: Beacon Station #494 MONITORING WELL NO.: MW-3 <br /> 2185 East Fremont Street ELEVATION: 18.79 feet <br /> Stockton, California <br /> 1 <br /> Protective Casing <br /> Il - <br /> !=1i1= <br /> Locking Water Tight Cap <br /> ' Flush Grade Well Consfrueflon <br /> Diameter and Mat'1 12—Inch steel <br /> Total length 12 inches <br /> Length Above Ground 1/4 Inch <br /> Thickness and Type of Seal 2 feet, concrete <br /> 14 <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/ 5% <br /> Around Riser <br /> ' 6entanits 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 13 lonestor <br /> Around Screen <br /> Monitoring Well Matt SCH 40 PVC <br /> n <br /> Screen Gauge/Slot Size 0.020 Inch <br /> ' Diameter and Length 4 inch, 15 feet <br /> of Screen <br /> ' Depth to Bottom 83 feet <br /> of Monitoring Well <br /> y Depth to the Bottom 83 feet <br /> I I of Filter Sand <br /> �+— 10 In <br /> 111 I <br /> L1= 0,25 feet MONITORING WELL WATER LEVEL MEASUREMENTS <br /> L2= 67.75 feet <br /> L3= 15.0 feet DATE TIME WATER LEVEL* <br /> L4= 83.0 feet 4-17-92 3:10 71.29 <br /> Approximate Depth to <br /> Groundwater 72 feet *Measuriny Paint Top of casing <br /> ' ACTON • MICKELSON • VAN DAM , INC. <br />