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{ <br /> PHYSICALSETTING 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 2002.7.5-Minute DEMs correspond to the USGS <br /> f 1:24,000-and 1:25,000-scale topographic quadrangle maps. <br /> I <br /> HYDROLOGIC INFORMATION <br /> Flood Zone Data: This data,available in select counties across the country,was obtained by EDR in 1999 from the Federal <br /> Emergency Management Agency(FEMA). Data depicts 100-year and 500-year flood zones as defined <br /> by FEMA. <br /> NWI: National Wetlands Inventory. This data,available in select counties across the country,was obtained by EDR <br /> in 2002 from the U.S. Fish and Wildlife Service. <br /> HYDROGEOLOGIC INFORMATION <br /> AQUIFLOWR Information System <br /> I <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 I <br /> extracted the date of the report,hydrogeologically determined groundwater flow direction and depth to water table <br /> information. <br /> I <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 i <br /> i Source: Department of Agriculture,Natural Resources Conservation Services <br /> The U.S.Department of Agriculture's(USDA)Natural Resources Conservation Service(N RCS)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 /> i <br /> ADDITIONAL ENVIRONMENTAL RECORD SOURCES <br /> FEDERAL WATER WELLS <br /> PWS: Public Water Systems <br /> Source: EPA/Office of Drinking Water j <br /> Telephone: 202-564-3750 i <br /> Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at <br /> least 25 people for at least 60 days annually. PWSs provide water from wells,rivers and other sources. <br /> PWS ENF: Public Water Systems Violation and Enforcement Data <br /> Source: EPA/Office of Drinking Water <br /> kk Telephone: 202-564-3750 <br /> Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System(SDWIS)after <br /> August 1995. Prior to August 1995,the data came from the Federal Reporting Data System(FRDS). <br /> j USGS Water Wells: USGS National Water Inventory System(NWIS) <br /> ' This database contains descriptive information on sites where the USGS collects or has collected data on surface <br /> water and/or groundwater.The groundwater data includes information on wells,springs,and other sources of groundwater. <br /> n <br />. M <br /> a <br /> TC01330314.2r Page A-13 <br />