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J <br /> Drilling Log GROUNDWATER <br /> ��!J <br /> T E C H N 0 L 0 G Y Monitoring well MW-13 <br /> Project Chevron - Slockton owner Chevron US C Products Co See 5rte Map <br /> Location East Nard,no wav Protect No. Q2070 339P Date drilled Q&/30/93 For Boring Locatran <br /> Surface Eley Total Hole Depth 65 ft� Diameter 7 In ft <br /> Top at Casing wafer Level Initial 55 ft COMMENTS <br /> Static <br /> Screen Dia 2—In Length 25 ft <br /> Casing DIB -Lrn Length �Q ff Type/Size 110—?0-1n <br /> Type Sched 40PVC <br /> rsifter Pack Material -43 Sand Rig/Core Type C-7 /SDkf swoon <br /> Drilling Company Sorts Ex St"vrcps Method 2±0_11-0--stem auoer <br /> Driller Mr{'e nuffvPermit f <br /> Log By Rot Nertato <br /> Checked By Ed Srmonrs L,cense No RG 2422 <br /> c`N4RMlv3/dsD <br /> C <br /> LD 2 E �' U Description <br /> C~ it 4 d dV u C.p <br /> o" o `� m o= m� (Color, Texture, Structure) <br /> CD U <br /> t� wEox Trace < 10% Little 10X to 20X, Some 20% to 35%. And 35X to SC)-- <br /> -2 <br /> OX <br /> -2 f <br /> 0 <br /> •:a 10 incnes of asphalt over gravelly sand bac 4kfiil <br /> faH <br /> 2 < < Dark gray fat CLAY 80% clay, 20% silt, trace fine sand <br /> < c CH (slrehtly moist, very stiff, medium plasticity no hydrocarbon <br /> 4 <br /> odor) <br /> < <br /> MW- <br /> 13-5 <br /> 0 a Yellow brown silty SAND 60% fine sand 40'. slit, trace mica <br /> 6 c < rs (sliahtly most to dry very dense friable no h aroca•oon <br /> i8 5M odor) y <br /> 8 < < <br /> < < 1 <br /> MW_ <br /> 10 < < 13-10 Yellow brown mottled an% white sandy SILT X0%6 sil+ 30%, fine <br /> 0 s sand 200, clay, trate medium sand trace caliche veins <br /> < < r' fsirghtly moist to dryJow plasticity 5rittfe, no <br /> 12 < < <br /> trydrocarbon odor) <br /> 14 < ML <br /> II N1W- <br /> < < + 13-15 <br /> 01 e (Grades yellos, orange clayey SILT baro silt, 30%n sclay, 5% fine <br /> 16 < < E119 sand trace mica} <br /> is <br /> i8 < < I <br /> I <br /> I <br /> < � I <br /> 20 < 20 <br /> < ; I h- <br /> < < 0 1 6 Yellow brohn SAND 2-")% line sand 5% silt, trace mica (slightly <br /> moist medium cense friable no hydrocarbon odor} <br /> I 35 <br /> 22 ` ` I f 5►+ (Gra s,Oe$ with gravel 60% fine sand 20% medium sand 10%e coarse <br /> < < i and 10'. fine subanoular oravel) <br /> r <br /> 24 <br /> tea iannoa� i•tih.._,� cam+ <br />