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GEOCHECIO PHYSICAL SETTING SOURCE SUMMARY . <br /> GROUNDWATER FLOW VELOCITY INFORMATION <br /> Groundwater flow velocity 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 through sandy-gravelly types of soils than silty-clayey types of soils. <br /> $_E 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 migration may be occurring. <br /> i <br /> ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION <br /> Era: Cenozoic Category: Stratifed Sequence I <br /> System: Quaternary <br /> Fj Series: Quaternary <br /> Code: Q (decoded above as Era,System&Serres) <br /> Geologic Age and Rock Stratigraphic 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 M.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 /> F1 in a landscape.Soil maps for STATSGO are compiled by generalizing more detailed(SSURGO)soil survey maps. <br /> The following information is based on Soil Conservation Service STATSGO data. <br /> Soil Component Name: TOKAY <br /> Soil Surface Texture: fine sandy loam <br /> F Hydrologic Group: Class B-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.F! i <br /> Hydric Status.Soil does not meet the requirements for a hydric soil. i <br /> Corrosion Potential-Uncoated Steel: HIGH <br /> Depth to Bedrock Min: i 60 inches <br /> Depth to Bedrock Max: >60 inches <br /> P <br /> F] I <br /> � I <br /> I <br /> TC1516632.2s Page A-4 7 <br /> G <br />