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LATHROP PROPERTY <br /> WKA No. 1184.02 <br /> January 30, '1992 <br /> Page 4 <br /> and/or thistles up to 18-inches-high across the property. Surface soils are light brown silty <br /> sands. The property Is relatively free of rubble and rubbish, with only minor amounts of <br /> roadside-typo litter observed on or near the westerly and southerly property boundaries. A <br /> billboard sign, targeted for heavy traffic volumes on nearby Interstate 5, is located on the <br /> property near the southwesterly corner and an abandoned above-ground concrete septic <br /> system is located near the southeasterly corner of the property. <br /> Topographically, the property is nearly flat,having estimated local relief no greater than two <br /> ' feat, and has an elevation of approximately 15 feet mean sea level WSL), as determined <br /> during review of the USGS 7-112 minute series Lathrop,California Quadrangle. The property <br /> ` is fenced along its northerly and easterly boundaries, although it is accessible from any point <br /> along the approximate 300-and 400-font-length frontages against Harlan and East Thomsen <br /> `a Roads, respectively. <br /> !'ea <br /> Phvsiopraphic Seei in <br /> a <br /> The property is located in the west-central portion of the City of Lathrop and lies within the <br /> southwesterly quarter of San Joaquin County. San Joaquin County is situated approximately <br /> mid-way between the northerly and southerly ends of California's Central Valley. The San <br /> �., Joaquin River that generally trends northwesieriy/southeasterly within the Central Valley.is <br /> W approximately 1-1.14 miles westerly from the property. <br /> Qeologi2 anddr e i Setting <br /> The subject property is located in the central portion of the Great Valley geomorphic province <br /> of California. The Great Valley lies between the mountains and foothills of the Sierra Nevada <br /> Ia <br /> Range to the east and the California Coast Ranges to the west. The geologic formations of <br /> the Great Valley are typified by thick sequences of alluvial sediments deposited during the <br /> filling of a large ancient basin. <br /> The 1988 USGS Professional Paper 1401-C,Geology of the Fresh Ground Water Basin of the <br /> Central Valley, California,shoes the property to be underlain by Miocene to Holocene alluvial <br /> + ! deposits that aria heterogeneous mixtures of generally poorly sorted clay,silt,sand and gravel, <br /> 2,ASSOCIATES IN{, <br />