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WELL CONSTRUCTION DIAGRAM <br /> Proposed Nested Soil Vapor Extraction Well <br /> San Joaquin County Motor Pool, 1810 E. Hazelton Ave.,Stockton <br /> yyyN 0 <br /> ` U <br /> J <br /> = G <br /> ~ �N <br /> o � <br /> WELL COMPLETION: Expansion cap,lock,18-inch diameter Flush-mount.traffic-rated street box <br /> 0c e a BOREHOLE: 10-inch diameter,drilled by hollow-stem auger drilling rig. <br /> SURFACE SEAL: Neal cement grout(3-6 feet) <br /> 5 <br /> BENTONITE SEAL: Hydrated bentonite chips(6-10 Leet) <br /> 10 BLANK WELL CASING: 2-inch diameter pvc(0-12 feet) <br /> WELL SCREEN: 2-inch diamter pvc(12-22 feet) <br /> FILTER PACK: Monterey#3 sand(10-22 feet) <br /> 15 <br /> 20 <br /> SLIP CAP:pvc <br /> BENTONITE SEAL: Hydrated bentonite chips(22-26 feet) <br /> 25 <br /> BLANK WELL CASING: 2-inch diameter pvc(0-28 feet) <br /> WELL SCREEN: 2-inch diamter pvc 128-38 feet) <br /> 30 FILTER PACK: Monterey#3 sand(26-38 feet) <br /> 35 <br /> SLIP CAP:pvc <br /> BENTONITE SEAL: Hydrated bentonite chips(38-42 feel) <br /> 40 <br /> BLANK WELL CASING: 2-inch diameter pvc(0-44 feet) <br /> WELL SCREEN: 2-inch diamter pvc(44-54 feet) <br /> 45 <br /> FILTER PACK: Monterey#3 sand(42-55 feet) <br /> 5o <br /> SLIP CAP:pvc <br /> 55 <br />