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90 <br />PHYSICAL SETTING SOURCE RECORDS SEARCHED <br />TOPOGRAPHIC INFORMATION <br />USGS 7.5' Digital Elevation Model (DEM) <br />Source: United States Geologic Survey <br />EDR acquired the USGS 7.5' Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM corresponds <br />to the USGS 1:24,000- and 1:25,000 -scale topographic quadrangle maps. The DEM provides elevation data <br />with consistent elevation units and projection. <br />Scanned Digital USGS 7.5' Topographic Map (DRG) <br />Source: United States Geologic Survey <br />A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey topographic map. The map images <br />are made by scanning published paper maps on high - resolution scanners. The raster image <br />is georeferenced and fit to the Universal Transverse Mercator (UTM) projection. <br />HYDROLOGIC INFORMATION <br />Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 2003 & 2011 from the Federal <br />Emergency Management Agency (FEMA). Data depicts 100 -year and 500 -year flood zones as defined by FEMA. <br />NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR <br />in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service. <br />State Wetlands Data: Wetlands Inventory <br />Source: Department of Environment & Natural Resources <br />Telephone: 919-733-2090 <br />HYDROGEOLOGIC INFORMATION <br />AQUIFLOWR Information System <br />Source: EDR proprietary database of groundwater flow information <br />EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater <br />flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has <br />extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table <br />information. <br />GEOLOGIC INFORMATION <br />Geologic Age and Rock Stratigraphic Unit <br />Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digital <br />representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994). <br />STATSGO: State Soil Geographic Database <br />Source: Department of Agriculture, Natural Resources Conservation Services <br />The U.S. Department of Agriculture's (USDA) Natural Resources Conservation Service (NRCS) leads the national <br />Conservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil <br />survey information for privately owned lands in the United States. A soil map in a soil survey is a representation <br />of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed ( SSURGO) <br />soil survey maps. <br />SSURGO: Soil Survey Geographic Database <br />Source: Department of Agriculture, Natural Resources Conservation Services (NRCS) <br />Telephone: 800 - 672 -5559 <br />SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Services, mapping <br />scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to <br />construct the soil maps in the Soil Survey Geographic ( SSURGO) database. SSURGO digitizing duplicates the <br />original soil survey maps. This level of mapping is designed for use by landowners, townships and county <br />natural resource planning and management. <br />TC4227876.2s Page PSGR -1 <br />