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r s <br /> �, ° :GEOCHECK® PHYSICAL SETTING SOURCE ADDENDUM F, �� �. ,,. ' - <br /> + .r <br /> I14 TARGET PROPERTY ADDRESS <br /> LOCKEFORD VISTAS <br /> 14400 AND 14100 E HIGHWAY 88 <br /> LOCKEFORD,CA 95237 <br /> �1 TARGET PROPERTY COORDINATES u <br /> S` Latitude (North): 38-165199-38' 9'54.7" <br /> Longitude(West): 121.144798- 121' 8'41.3" <br /> Universal Tranverse Mercator: Zone 10 <br /> UTM X(Meters): 662526.4 <br /> UTM Y(Meters): 4225564.5 <br /> Elevation: 103 ft.above sea level <br /> EDR's GeoCheck Physical Setting Source Addendum has been developed to assist the environmental professional <br /> with the collection of physical setting source information in accordance with ASTM 1527-00, Section 7.2.3. <br /> Section 7.2.3 requires that a current USGS 7.5 Minute Topographic Map(or equivalent,such as the USGS Digital <br /> Elevation Model)be reviewed. It also requires that one or more additional physical setting sources be sought <br /> when(1)conditions have been identified in which hazardous substances or petroleum products are likely <br /> to migrate to or from the property, and(2)more information than is provided in the current USGS 7.5 Minute <br /> Topographic Map(or equivalent) is generally obtained,pursuant to local goad commercial or customary practice, <br /> to assess the impact of migration of recognized environmental conditions in connection with the property.Such <br /> additional physical setting sources generally include information about the topographic, hydrologic, hydrogeologic, <br /> and geologic characteristics of a site,and wells in the area. <br /> Assessment of the impact of contaminant migration generally has two principle investigative components: <br /> 1. Groundwater flaw direction, and <br /> 2. Groundwater flow velocity. <br /> i Groundwater flaw direction may be impacted by surface topography, hydrology, hydrogeology,characteristics <br /> 3 of the soil,and nearby wells.Groundwater flaw velocity is generally impacted by the nature of the geologic strata. <br /> EDR's GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in <br /> forming an opinion about the impact of potential contaminant migration. <br /> f <br /> FJ <br /> �f <br /> TC1516260.2s Page A-1 <br /> v <br />