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' FILE NO. 20-3978-01.WR6 k4i KL E IN FEL D ER FEBRUARY 24, 1997 2 SITE SETTING 2.1 SITE LOCATION The site is located in a portion of the Northern 1/2 of the Northeast 1/4 of Section 4, a portion of the Eastern 1/2 of the Southeast 1/4 of Section 4 and the Western 1/2 of Section 3 of Township 2 South Range 7 East of the Mount Diablo Baseline and Meridian. According to the 1987 photorevised U.S. Geological Survey "Manteca, California, East" 7.5-Minute Topographic Quadrangle Map, the property has an elevation of approximately 40 feet above mean sea level. However, the topography of the site varies extensively. According to a December 1996 topographic survey of the site by RLC Associates of Manteca (the basis of our attached boring location maps),the site has an elevation ranging from 38 to 68 feet above mean sea level. The overall former Spreckels Sugar Plant No. 2 property includes approximately 362 acres of property which were recently annexed to the City of Manteca. 2.2 CURRENT SITE USE AND VICINITY CHARACTERISTICS The project site is currently a non-operating sugar beet processing plant with associated former cattle yards, orchards, waste ponds etc... The site is bound to the north by the Yosemite Avenue, to the south by the California State Highway 120 Bypass, to the west by Powers Avenue and residential development and to the east by California State Highway 99. The site vicinity could be characterized by mixed use, retail, light commercial, agricultural and residential property. 2.3 GEOLOGY AND HYDROGEOLOGY The site lies within the Great Valley Geomorphic Province of California. The valley is approximately 400 miles long and averages about 50 miles wide, and comprises about 20,000 square miles. The valley has been filled with a thick sequence of marine and non-marine sediments from the late Jurassic to Holocene. The uppermost strata of the Great Valley represents, for the most part, the alluvial, flood, and delta plains of two major rivers (Sacramento and San Joaquin Rivers) and their tributaries. 20-3978-01.WR612072E074.doc Page 3 of 17 0 199 7,Kleinjelder,Inc.