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J <br /> II L <br /> I.X <br /> fiE4 HCl 01CAL: <br /> UT 0 <br /> SETTING ' <br /> .............. <br /> GROUNDWATER FLOW VELOCITY INFORMATION Ij <br /> Groundwater flow velO.6ity information for a particular site is best determined by a qualified environmental professional <br /> using site specific-geologic and soil strata data, If such data are not reasonably ascertainable, it may be necessary <br /> to rely on other sources of information,including geologic age identification,rock stratigraphic unit and soil <br /> characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes <br /> move more quickly thr9ugh sandy-gravelly types of soils than silty-clayey types of soils. <br /> GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY <br /> Geologic information can be used by the environmental professional in forming an opinion about the relative speed <br /> at which contaminant rNgration may be occurring. <br /> ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION <br /> Era: 7i <br /> Cenozoic Category: Stratifed Sequence <br /> System: Quaternary <br /> Series: Quaternary <br /> Code: f, Q (decoded above as Era,System&Series) <br /> Geologic Age and Rock Strafigraphic Unit Source: P.G.Schruben, R.E.Arndt and W.J. Bawiec, Geology <br /> of the Conterminous U!S.at 1:2,500,000 Scale-a digital representation of the 1974 P.B. King and H.M. Beikman <br /> Map, USGS Digital Data Series DDS-11 (1994). <br /> DOMINANT SOIL'COMPOSITION IN GENERAL AREA OF TARGET PROPERTY <br /> The U.S. Department of Agriculture's(USDA)Soil Conservation Service(SCS)leads the National Cooperative Soil <br /> Survey(NCSS)and is 'responsible for collecting,storing,maintaining and distributing soil survey information <br /> for privately owned lands in the United States.A soil map in a soil survey is a representation of soil patterns <br /> in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed(SSURGO)soil survey maps. <br /> The following information is based an Soil Conservation Service STATSGO data. <br /> Soil Component Name: TOKAY <br /> Soil Surface Texture: fine sandy loam <br /> Hydrologic Group: Class 8-Moderate infiltration rates.Deep and moderately deep, <br /> moderately well and well drained soils with moderately coarse <br /> textures. <br /> Soil Drainage Class: Well drained.Soils have intermediate water holding capacity. Depth to <br /> water table is more than 6 feet. <br /> Hydric Status:Soil does not meet the requirements for a hydric soil. <br /> LI it ii <br /> Corrosion Potential-Uhcoated Steel: HIGH <br /> Depth to Bedrock Min: >60 inches <br /> Depth to Bedrock Max:! >60 inches <br /> TC1074383.4s Page A-4 II <br />