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' VAPOR EXTRACTION WELL <br /> CONSTRUCTION DETAILS <br /> PROJECT: BEACON STATION #494 VAPOR EXTRACTION WELL HQ.: VW-1 <br /> 2185 E FREMONT ST <br /> STOCKTON, CA <br /> Protective Casing <br /> Locking Water Tight Cap <br /> ' Flush Grade Well Construction <br /> Dlameter and Mat'] 24 inches, steel <br /> ' Total Length 10 inches <br /> Length Above Grade 1/2 Inch <br /> Thickness and Type of Seal 1 foot, concrete <br /> ' Diameter, Material and 2—Inch SCH 40 PVC <br /> m a Joint Type of Riser Pipe flush thread <br /> ' 3 y Type of Backfill Around Riser Type 2 <br /> partland cement <br /> Thickness and Type of Seal 2 feet, bentonite pellets <br /> Distance of Filter Sand 2 feet <br /> Above Top of Screen <br /> Type of Filter Around Screen #3 lonestar <br /> ' Monitoring Well Mat'I SCH 40 PVC <br /> Screen Gauge/Slat Size 0.02—Inch <br /> Dfameter and Length of Screen 2 Inch, 15 feet <br /> Campletlan Depth 40 feet <br /> — - Type of Backfill Around Riser bentonlfe chips <br /> ' Thickness and Type of Seal 2 feet, bentonite pallets <br /> Distance of Filter Sand 2 feet <br /> ' Above Top of Screen <br /> Type of Filter Around Screen #3 lonestar <br /> Monitoring Well Mat'l SCH 40 PVC <br /> Screen Gouge/Slat Size GM—irsell <br /> Dlameter and Length of Screen ..2.Inch_154A*t. ..._ <br /> Depth to Bottom of Vapor Well 75 feet <br /> Thickness and Type of Seal n/a <br /> I Total Depth 75 feet <br /> }� 10 in —y <br /> COMPLETED: 10:111 12-10-112 <br /> ACTON • MICKELSON • VAN DAM , INC . <br />