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' i _ ar - •a i "L, �, -565" s;'.. °• 4.q :moi rz^ v€ 1' ' ' <br /> d, s� <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 /> TARGET PROPERTY TOPOGRAPHY <br /> USGS Topographic Map: 37121-G5 CLIFTON COURT FOREBAY,CA <br /> General Topographic Gradient: General ENE <br /> Source: USGS 7.5 min quad index <br /> SURROUNDING TOPOGRAPHY.ELEVATION PROFILES <br /> r <br /> 0 <br /> f � N <br /> G <br /> UJw — H_ iF. -a9 — <br /> North South <br /> TP <br /> a <br /> Uj M. - - — . -. —+ — . — �. _ 4 N m N m N N — m— <br /> West East i <br /> TP i <br /> 0 112 1 Miles <br /> Target Property Elevation: 58 ft. <br /> Source:Topography has been determined from the USGS 7.5'Digital Elevation Model and should be evaluated <br /> on a relative(not an absolute)basis. Relative elevation information between sites of close proximity <br /> • 1 should be field verified. <br /> i <br /> TC1302893.2s Page A-2 <br /> I <br /> i <br /> I <br /> I <br />