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03-A ,i1-07 <br /> BoringMell Log Legend <br /> KEY TO SYMBOLS/ABBREVIATIONS <br /> Y First encountered groundwater PID= Photo-ionization detector or organic vapor meter <br /> reading in parts per million(ppm) <br /> I Static groundwater _ <br /> fbg= Feet below grade <br /> Soils logged by hand-auger or air-knife cuttings glow Counts= Number of blows required to drive a <br /> California-modified split-spoon sampler using <br /> I 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 /> Q Undisturbed soil sample interval sample interval <br /> S (IOYR 4/4)= Soil color according to Munsell Soil <br /> Soil sample retained for submittal to analytical <br /> Color Charts <br /> laboratory <br /> ms1= Mean sea level <br /> O No recovery within interval <br /> _ Soils logged according to the USCS. <br /> Hydropunch or vapor sample screen interval <br /> UNIFIED SOILS CLASSIFICATION SYSTEM(USCS) SUMMARY <br /> Major Divisions raphic Group Typical Description <br /> Symbol <br /> GW Well-graded gravels,gravel-sand mixtures,little or no fines <br /> Clean Gravels • <br /> (:55%fines) o GP Poorly-graded gravels,gavel-sand mixtures,little or no fines <br /> Gravel and o ° <br /> Gravelly Soils o GM Silty gravels,gravel-sand•silt mixtures <br /> Gravels with Fines <br /> Coarse-Grained 15%fines) GC Clayey gravels,gravel-sand-claymixtures <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 /> d Inorganic silts,very fine sands,silty or clayey fine sands, <br /> ML clayey silts with slight plasticity <br /> Inorganic clays of low to medium plasticity,gravelly clays, <br /> Silts and Clays CL sandy clays,silty clays,lean clays <br /> '= Fine-Grained <br /> Soils OL Organic silts and organic silty clays of low plasticity <br /> 3 (>50%Silts Inorganic silts,micaceous or diatomaceous fine sand or silty <br /> ' and/or Clays) MH soils <br /> ° <br /> Silts and Clays CH inorganic clays of high plasticity <br /> LL <br /> `d OH Organic clays of medium to high plasticity,organic silts <br /> g <br /> 5 <br /> E <br /> ganic Soils ..�u2 p PT Peat,humus,swamp soils with high organic contents <br /> Highly Or <br /> s <br /> CONESTOGA-ROVERS <br /> &ASSOCIATES <br />