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07-Mar-05 <br /> Voring[Well Log Legend '0mr/ <br /> KEY TO SYMBOLS/ABBREVIATIONS <br /> _V 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 /> T Califomia-modified split-spoon sampler using <br /> (( Soils logged by drill cuttings or disturbed sample a 140-pound hammer falling freely 30 inches, <br /> recorded per 6-inch interval of a total 18-inch <br /> ❑ Undisturbed soil sample interval sample interval <br /> M Soil sample retained for submittal to analytical (10YR 414)= Soil color according to Munsell Soil <br /> laboratory Color Charts <br /> msl= 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 /> 40 <br /> Clean Gravels GW Well-graded gravels,gravel-sand mixtures,little or no fines <br /> (55%fines) o <br /> Gravel and o� 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) <br /> 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 /> (55%fines) SP Poorly-graded sands,gravelly sand,little or no fines <br /> Sand and Sandy <br /> Soils SM Silty sands,sand-silt mixtures <br /> Sands with Fines <br /> ( >15% fines) SC Clayey sands,sand-clay mixtures <br /> v <br /> c <br /> ML Inorganic silts,very fine sands,silty or clayey fine sands, <br /> o, clayey silts with slight plasticity <br /> oSilts and Clays CL Inorganic clays of low to medium plasticity,gravelly clays, <br /> o <br /> Fine-Grained sandy clays,silty clays,lean clays <br /> n = <br /> o Soils =— OL Organic silts and organic silty clays of low plasticity <br /> (>50% Silts <br /> and/or Clays) MH Inorganic silts,micaceous or diatomaceous fine sand or silty <br /> o soils <br /> n <br /> S Silts and Clays CH Inorganic clays of high plasticity <br /> a <br /> m OH Organic clays of medium to high plasticity,organic silts <br /> �o <br /> E Highly Organic Soils ` " ' PT Peat,humus,swamp soils with high organic contents <br /> © 1 <br /> C A M B R I A <br />