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GEOCHECKO - 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 /> TARGET PROPERTY TOPOGRAPHY <br /> USGS Topographic Map: 38121-B2 LOC KE FO RD,CA <br /> General Topographic Gradient: General WNW <br /> Source: USGS 7.5 min quad index <br /> SURROUNDING TOPOGRAPHY: ELEVATION PROFILES <br /> C <br /> O <br /> m rn m m m a m <br /> N <br /> J fD b �G tL J �P y A Z. <br /> N <br /> North South <br /> TP <br /> r <br /> C <br /> } <br /> m df W OW -4 0 V J J J N V V V <br /> 0J -4 V m m b O N N N 41 W W <br /> West East <br /> TP <br /> 0 112 1 Miles <br /> Target Property Elevation:69 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 /> should be field verified. <br /> TC01478721.2r Page A-2 <br />