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World L.erprises Log of Soil Vapor WeII: <br /> Location: Project Number: 17325532. VW_4 <br /> Dates Drilled: 4/7/04 Total Depth: 15 feet bgs Borehole Name: BH4 <br /> Drilling Contractor. Gregg Drilling Well Construction Date: 4(7/04 Logged 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: North central property boundary. <br /> R <br /> 0 <br /> rz <br /> o <br /> Ca� c x� a F CB7 <br /> LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 3'locking stove pipe <br /> completion <br /> Well secured with gals <br /> measurement vve cap <br /> 1-inch SCH 40 PVC <br /> to 6 ft bgs <br /> 0 0 <br /> 41 a A Grass and topsoil. <br /> Sandy Clay with Silt(CL). Dark grayish brow,low to medium <br /> Plasticity,30°4096 very fine to fine grained sand,trace silt,very <br /> atilt slightly moist <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 Sand(SM). Dark gray,very fine to rme grained sand,3n- <br /> 40%silt,trace clay.loose,slightly moist 5 <br /> Construction debris,marble,etc.-still in fill. <br /> 4 0 <br /> i <br /> 10 Sandy Clay(CL).Gray to dark gray,low plasticity,15%very 1-inch SCS 40 PVC <br /> 1s 0 titre to fin(,caused sand.trace silt,very stiflf,dry to slightly 0.020-inch Slot Screen 6.15 ft 10 <br /> moist Native. Pea Gravel 5-15.5 ft <br /> X. <br /> Low to medium plasticity.20-25%very fine to fine grained sand, xx <br /> stif&slightly moist <br /> 13 0 <br /> 15 15 ' <br /> URS2870 Gateway Oaks Dr.,Sec 300 - <br /> Saora nnuo•CA 95833 <br /> 916-679-2000 <br />