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PHYSICAL SETTING SOURCE RECORDS SEARCHED TOPOGRAPHIC INFORMATION USGS 7.5'Digital Elevation Model(DEM) Source:United States Geologic Survey EDR acquired the USGS 7.5'Digital Elevation Model in 2002 and updated it in 2006.The 7.5 minute DEM corresponds to the USGS 1:24,000-and 1:25,000-scale topographic quadrangle maps.The DEM provides elevation data with consistent elevation units and projection. Current USGS 7.5 Minute Topographic Map Source:U.S.Geological Survey HYDROLOGIC INFORMATION Flood Zone Data: This data,available in select counties across the country,was obtained by EDR in 2003&2011 from the Federal Emergency Management Agency(FEMA). Data depicts 100-year and 500-year Flood zones as defined by FEMA. NWI: National Wetlands Inventory. This data,available in select counties across the country,was obtained by EDR in 2002,2005 and 2010 from the U.S.Fish and Wildlife Service. HYDRGGEOLOGIC INFORMATION AQUIFLOWR Information System Source: EDR proprietary database of groundwater Flow information EDR has developed the AQUIFLOW Information System(AIS)to provide data on the general direction of groundwater Flow at specific points.EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report,hydrogeologically determined groundwater Flow direction and depth to water table information. GEOLOGIC INFORMATION Geologic Age and Rock Stratigraphic Unit 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 - representation of the 1974 P.B. King and H.M.Beikman Map, USGS Digital Data Series DDS- 11 (1994). STATSGO: State Soil Geographic Database Source: Department of Agriculture,Natural Resources Conservation Services The U.S.Department of Agriculture's(USDA)Natural Resources Conservation Service(NRCS)leads the national Conservation Soil Survey(NCSS)and is responsible for collecting,storing,maintaining and distributing soil survey information for privately owned lands in the United States.A soil map in a soil survey is a representation of soil patterns in a landscape.Soil maps for STATSGO are compiled by generalizing more detailed(SSURGO) soil survey maps. SSURGO:Soil Survey Geographic Database Source: Department of Agriculture,Natural Resources Conservation Services(NRCS) Telephone: 800-672-5559 SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Services,mapping scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to construct the soil maps in the Soil Survey Geographic(SSURGO)database.SSURGO digitizing duplicates the original soil survey maps.This level of mapping is designed for use by landowners,townships and county natural resource planning and management. TC4420533.2s Page PSGR-1