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~ World rpriseSLog of Soil Vapor Well: <br /> Location: Project Number: 17325532. '�71♦ -4 <br /> Dates Drilled 4!7/04 Total Depth: 15 feet bgs Borehole Name: BH-4 <br /> Drilling Contractor. Gregg Drilling Well Construction Date. 4/7/04 Lagged By: Jeff Brooks <br /> Borehole Diameter. 8-inch Casing Diameter. 1-inch Casing Type. SCH 40 PVC Checked By: Vern Elarth <br /> Drilling Method: Hollow Stem Auger Screen Interval: 6-15 feet Slot Size: 0.020-inchSampling Method: CA Modified Split Spoon <br /> Comments: Norte central property boundary. <br /> R <br /> b <br /> O 0 <br /> w$ a <br /> ani •(; � a � - <br /> a. w <br /> q Eo <br /> W x e, E» >. <br /> LITHOLOGY DESCREMON WELL CONSTRUCTION <br /> 3'locking stove pipe <br /> completion <br /> Well secured with gas <br /> measurement valve cap. <br /> 1-inch SCH 40 PVC <br /> X. <br /> to 6 ft bgs <br /> 0 <br /> Grass and topsoil 0 <br /> le, Sandy pay with Silt(CL).Dark grayish brown,low to medium <br /> Plasticity,3040%very fine to fine grained sand,trace silt,very <br /> Stiff,slightly mast. <br /> Neat Cement from surface to 4 <br /> ft bgs <br /> Glass shards and aluminum can indicates still in fill material. <br /> Bentonite Seal 4-5 ft <br /> 5 Silty Saud(Sly. Dark gray,very fine to fine grained sand,30- <br /> 40%silt,tri clay,loose,slightly moist. 5 <br /> Construction debris,marble,etc:still in fill. <br /> 4 0 <br /> 10-- Sandy Clay(CL).Cray to dark gray,low plasticity,15%very ` 1-inch SCH 40 PVC <br /> 18 0 fine to fine grained sand,trace silt,very stiff,dry to slightly ` 0.020-inch Slot,Screw 6-15 ft 10 <br /> moist.Native. Pea Gravel 5-15.5 ft <br /> Low to medium plasticity,20-25%very fine to fine grained sand, <br /> stiff,slightly mast <br /> 13 0 <br /> 15 <br /> 15 <br /> UM2870 Gateway Oaks Dr.,Ste 300 <br /> Seto,CA 95833 , <br /> 916-679-2000 <br />