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r <br /> O7-Mar-05 <br /> BoringMell Log Legend <br /> KEY TO SYMBOLS/ABBREVIATIONS <br /> -7 First encountered groundwater PID= Photo-ionization detector or organic vapor meter <br /> reading in parts per million(ppm) <br /> T Static groundwater <br /> fbg= Feet below grade <br /> Soils logged by hand-auger or air-knife cuttings <br /> Blow Counts= Number of blows required to drive a <br /> California-modified split-spoon sampler using <br /> (( Soils logged by drill cuttings or disturbed sample a 140-pound hammer failing freely 30 inches, <br /> recorded per 6-inch interval of a total IS-inch <br /> ❑ Undisturbed soil sample interval sample interval <br /> M Soil sample retained for submittal to analytical (I OYR 414)= Soil color according to Munsell Soil <br /> laboratory Color Charts <br /> — msl= Mean sea level <br /> 0 No recovery within interval <br /> Soils logged according to the USCS <br /> = Hydropunch screen interval <br /> UNIFIED SOILS CLASSIFICATION SYSTEM USCS SUMMARY <br /> Major Divisions raphic Group Typical Description <br /> Symbol <br /> Clean Gravels • <br /> (,W Well-graded gravels,gravel-sand mixtures,little or no fines <br /> (55%fines) o � GP Poorly-graded gravels gravel-sand mixtures little or no fines <br /> Gravel and Q o <br /> Gravelly Soils o <br /> Gravels with Fines GM Silty gravels,gravel-sand-silt mixtures <br /> Coarse-Grained ( ?15% fines} GC Clayey gravels,gravel-sand-clay mixtures <br /> Soils <br /> (>50% Sands SW Well-graded sands,gravelly sands, little or no fines <br /> and/or Gravels) Clean Sands <br /> (�5% fines) Sp Poorly-graded sands,gravelly sand,little or no fines <br /> Sand and Sandy <br /> Soils Sands with Fines SM Silty sands sand-silt mixtures <br /> ( ?15% fines) SC Clayey sands,sand-clay mixtures <br /> CD Inorganic silts,very fine sands,silty or clayey fine sands, <br /> ED <br /> J ML clayey silts with slight plasticity <br /> Inorganic clays of low to medium plasticity,gravelly clays, <br /> Coo Silts and Clays CL sandy clays,silty clays, lean clays <br /> o Fine-Grained <br /> m — — <br /> N Soils = — OL Organic silts and organic silty clays of low plasticity <br /> (>50% Silts <br /> 47, Inorganic silts micaceous or diatomaceous fine sand or silty <br /> and/or Clays) M H <br /> o soils <br /> m <br /> E Silts and Clays CH Inorganic clays of high plasticity <br /> 0 <br /> m <br /> CU <br /> OH Organic clays of medium to high plasticity,organic silts <br /> �o <br /> a — <br /> m Highly Organic Soils " PT Peat, humus,swamp soils with high organa contents <br /> C A M B R I A <br />