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07-Mar-05 <br /> Boring/Well Log Legend <br /> KEY TO SYMBOLSIABBREVIATIONS <br /> -7 First encountered groundwater PID= Photo-ionization detector or organic vapor meter <br /> reading in parts per million(ppm) <br /> 7- 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 /> Cahfomia-modified split-spoon sampler using <br /> Soils logged by dnll cuttings or disturbed sample a 140-pound hammer falling freely 30 inches, <br /> recorded per 6-inch interval of a total 18-inch <br /> 0 Undisturbed soil sample interval sample interval <br /> Soil sample retained for submittal to analytical (lOYR 414)= Soil color according to Munsell Soil <br /> laboratory Color Charts <br /> -- ms1= Mean sea level <br /> O 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 /> 4 40 <br /> GW Well-graded gravels,gravel-sand mixtures,little or no fines <br /> Clean Gravels 0.2.41 <br /> (55%fines) o <br /> Gravel and o C� GP Poorly-graded gravels,gravel-sand mixtures,little or no fines <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%SandsSW Well-graded sands,gravelly sands,little or no fines <br /> and/or Gravels) Clean Sands <br /> (:!5 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 /> O1 ML Inorganic silts,very fine sands,silty or clayey fine sands, <br /> clayey silts with slight plasticity <br /> o Inorganic clays of low to medium plasticity,gravelly clays, <br /> C, Silts and Clays CL sandy clays,silty clays,lean clays <br /> 01 Fine-Grained — <br /> Soils — OL Organic silts and organic silty clays of low plasticity <br /> J (>50% SiltsM H Inorganic silts,micaceous or diatomaceous fine sand or silty <br /> 0) <br /> o and/or Clays) sails <br /> m <br /> € Silts and Clays CH Inorganic clays of high plasticity <br /> LL0 <br /> °8 OH Organic clays of medium to high plasticity,organic silts <br /> N <br /> Q] <br /> t0 <br /> CL �i ••i <br /> m <br /> Highly Organic Soils �'_'� +"� +' PT Peat,humus,swamp soils with high organic contents <br /> a <br /> C A M B R I A <br />