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SECOR ' hiternationalIncorporated Logged By Date Drilled Drilling Contractor Protect Name Method/Equipment Well Number ARCO Station#4932 HSA-Split Spoon D Harp 8/22100 West Hazmat 16 E Harding Way,Stockton,CA CME-75 SVE-1 See"Soil Clasification Chart" Boring Surface Groundwater Depth(ft) Total Drive Drop for Soil Classifications and Dram(in) Elev(ft) V 27 First Water Depth(ft) wt(lbs) Dist(m) Designations 10 T 27 6 Stabilized Wai er 365 140 30 t > ^ - Z Well s 3 Description Q a Construction °' o C6 po p Casing Elev 40 `" well box ° ASPHALT,GRAVEL,(AB)(0 to 3 0') cement ° 0 d d ° bentonite seal ' SILTY SAND(SM) Dark Olive Gray(5Y 312),fine grained,poorly graded, loose,dry,no hydrocarbon odor (40,35,25) 2"blank casing 5 5 SILTY SAND(SM) Olive Brown(2 SYR 4/3),fine grained,poorly 9 SVE-1 ' 2" slotted 7 graded,slightly cohesive,medium dense,moist,hydrocarbon odor @5 0 020 casing 7 (40,35,25) l0 10 SILTY SAND(SM) Olive Brown(2 5Y 4/4),less clay,poorly 109 SVE-1 10 graded,non cohesive,dense,dry,faint hydrocarbon odor (50,40,10) @10 13 15 15 SILTY SAND(SM) Dark Grayish Brown(2 5Y 4/2),poorly graded, 200 SVE-1 20 slightly cohesive,dense,moist,strong hydrocarbon odor (50,30,20) @15 21 ' 20 12 SILTY CLAY(CL) Very Dark Grayish Brown(2 5Y 3/2),staining, 234 SVE-1 15 tow plasticity,very stiff,moist,strong hydrocarbon odor (30,30,40) @20 19 ' The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or samples obtained during drilling Predominant material types shown on the log may contain different materials and the change from one predominant material type to another could be different than indicated Descriptions on this log apply only at the specific location at the time of dnllmg and may not be representative of subsurface conditions at other locations or times Protect No 077 41983 330 Date 10/19/00 Log of Well ' 4932 GP1 Figure LOG OF BOREHOLE (sheet 1 of 2)