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i <br /> SECOR <br />' International Incorporated <br /> Logged By Dates Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> 1/30/01 WEST ARCO 6020 HSA <br /> CH 1/30/01 HAZMAT MANTECA, CA SPLITSPOON MW-6 <br /> 1 See"Soil Clasification Chart' Bonng Surface Groundwater Depth(ft) Total Dnve Drop <br /> for Soil Classifications and Dram(in) Elev(ft} -7 21 FIRST Depth(ft) wt(lbs) Dist(in) <br /> Designations 10" 43 65 (TOC) -T 20 66 STABILIZED 365 140 30 <br /> 1 <br /> > � a <br /> 8 <br /> Well Descnptton 8 <br /> Construction o °: <br /> 1 <br /> 1 TRAFFIC ASPHALT <br /> RELATED <br /> WELL BOX SILTY SAND(SM) brown,fine grained sand, loose,damp,no hydrocarbon <br /> odor(0,75,25,0) <br /> GROUT <br /> 1 a ° <br /> 4"BLANK <br /> CASING 1 5— <br /> 0, 6 SILTY SAND(SM) dark brown,fine grained sand, some small gravel, <br /> BENTO 10 loose,damp,no hydrocarbon odor(10,75,15,0) <br /> SEAL 12 <br />' 4" 10 4 SAND (SP) brown,fine grained,medium dense,damp(0,90,10,0) 0 <br /> SLOTTED 12 <br /> SCREEN 21 <br />' SAND 15 26 SAND(SP)- light brown,fine to medium grained,dense,damp,(0,90,10,0) 0 <br /> _X 50 <br /> 20 12 SILT(ML) light brown,stiff,medium plasticity, moist to wet,no 0 <br /> —x 17 Hydrocarbon odor(0,0,90,10) <br /> 28 <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predornmant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated Descriptions on this 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 times <br /> Project No 077 42070 330 Date 2/15/01 Log Of Well <br /> 6020MW6 GP7 Approved by <br /> LOG OF BOREHOLE Figure (sheet 1 of 2) <br />