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GEOCHECIO - PHYSICAL SETTING SOURCE SUMMARY <br /> GROUNDWATER FLOW DIRECTION INFORMATION <br /> Groundwater flow direction for a particular site is best determined by a qualified environmental professional <br /> using site-specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other <br /> sources of information, such as surface topographic information, hydrologic information, hydrogeologic data <br /> collected on nearby properties,and regional groundwater flow information (from deep aquifers). <br /> TOPOGRAPHIC INFORMATION <br /> Surface topography may be indicative of the direction of surficial groundwater flow. This information can be used to <br /> assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, <br /> should contamination exist on the target property,what downgradient sites might be impacted. <br /> USGS TOPOGRAPHIC MAP ASSOCIATED WITH THIS SITE <br /> Target Property: 2438121-B1 CLEMENTS,CA <br /> Source: USGS 7.5 min quad index <br /> GENERAL TOPOGRAPHIC GRADIENT AT TARGET PROPERTY <br /> Target Property: General NE <br /> Source: General Topographic Gradient has been determined from the USGS Digital Elevation Model and <br /> should be evaluated on a relative(not an absolute)basis. Relative elevation information between sites of <br /> close proximity should be field verified. <br /> HYDROLOGIC INFORMATION <br /> Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist <br /> the environmental professional in forming an opinion about the impact of nearby contaminated properties or,should <br /> contamination exist on the target property,what downgradient sites might be impacted. <br /> Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways <br /> and bodies of water). <br /> FEMA FLOOD ZONE <br /> FEMA Flood <br /> Target Property County Electronic Data <br /> SAN JOAQUIN, CA YES- refer to the Overview Map and Detail Map <br /> Flood Plain Panel at Target Property: 06029901858 <br /> Additional Panels in search area: 0602990195B <br /> NATIONAL WETLAND INVENTORY <br /> NWI Electronic <br /> NWI Quad at Target Property Data Coverage <br /> CLEMENTS YES-refer to the Overview Map and Detail Map <br /> HYDROGEOLOGIC INFORMATION <br /> Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator <br /> of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the <br /> environmental professional in forming an opinion about the impact of nearby contaminated properties or, should <br /> contamination exist on the target property,what downgradient sites might be impacted. <br /> TC0952108.9s Page A-2 <br />