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SECOR <br /> Irerernarfoncl Incorppr[rtcd <br /> • Logged By Dates Drilled Dnlhng Contractor Project Name MethodlEgmpment Well Number <br /> 7/23/01 WEST ARCO#595 SPLIT SPOON <br /> 1 BH 7/23/01 HAZMAT STOCKTON,CA HSA MW-7 <br /> See"Legend to Logs"for goring Surface Groundwater Depth(ft} Total Drive Drop <br /> sampling method Dram(m) Eley(ft) 50 FITtST Depth(ft) wt(lbs) Dist(in) <br /> lesung metl g and laboratory -T 59 4 STABILIZED 71 5 140 30 <br /> tesun meth 8 32 52(TOC) <br /> Well , <br /> Construction Q Description <br /> Ca m h Z <br /> 9 SAND(SP) brown,fine-grained,medium dense,moist(0,90,10,0) MW-7 <br /> 12 @25' <br /> 16 <br /> b I <br /> s a 30 <br /> • 10 SAND(SP) dark brown,medtum-grained,medium dense,moist(0,95,5,0) MW-7 <br /> 14 @3V <br /> e A 18 <br /> s ° <br /> Y <br /> ° 35 15 CLAY(CL) Ifght brown,no plasticity,very hard,dry(0,0,5,45) <br /> MW-7 <br /> 23 C&35' <br /> 30 <br /> A / <br /> ° ° 40 11 SILTY CLAY(CL) reddish brown,low plasticity,hard,moist(0,0,20,50) MW-7 <br /> 17 @40 <br /> 24 <br /> v a <br /> Y f <br /> BENTONM <br /> SEAL <br /> 45 14 SILTY CLAY(CL) dark brown,low plasticity,very hard,moist MW-7 <br /> 20 (0,5,20,75) 045' <br /> 28 <br /> The substrata descriptions above are generalized rrprescntations and bascd upon vusu-1llmanual cl iNsi iL Ilton or Cutttncs 111d/01 <br /> samples obtained dunnF dnlhng Predominant material types shown on the log may contain different materials and the change fioin <br /> one predominant material type to another could be different than indicated Descriptions on thus log apply only at the specific location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or tunes <br /> Project No 077 43029.330 Date 9121/01 PR Log of Well <br /> 95MW7 GP7 Approved by <br /> LOG OF BOREHOLE <br /> frigate (sheet 2 of 3) <br />