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REGIONAL GEOGRAPHIC SETTING <br /> The property is located just east of Highway 99, between Waterloo <br /> Road, (Highway BS, ) and Fremont Street, (Highway 26, ) about 2---3 <br /> males east of City Hall . The area is :caned for manufacturing and <br /> light industrial use; there are no residences in the immediate <br /> area. The Stockton Diverting Canal as a short distance to the <br /> east, and a spur of the Stockton Terminal Eastern RR is just to <br /> the south. Plate I gives more details of the immediate area. <br /> GEOLOGIC & GEOMORPHIC PROVINCE <br /> The site is located near the southern end of the Sacramento <br /> Valley about 1 1/2 miles south of the Calaveras Raver and 3 miles <br /> northeast of the Stockton Deepwater Channel . Sediments in this <br /> area have been derived primarily from reworked material from <br /> meandering streams and flood plain deposits. The original source <br /> is outwash and erosion of the volcanic and metamorphic rocks <br /> formed during the uplifting of the Sierra Nevada Batholfth to the <br /> east. The topography as one of very low relief , with draaniage <br /> towards the west--southwest at about 5 feet per mile. Plate II is <br /> • a portion of a USGS quadrangle sheet showing the location of the <br /> property is relation to surrounding geologic features. <br /> SOIL TYPES <br /> According to the 1952 publication issued by the University of <br /> California, Berkeley, surface soils in this area are classified <br /> as Stockon Adobe clay, which as derived from reworked basin <br /> sediments. It is generally dark gray, fine textured, with a <br /> Storie Index of 24. It as typically underlain by calcareous <br /> subsoils containing hardpan or hardpan-Like substratum. The <br /> material excavated at this location generally conformed to that <br /> description, except at the southerly end where a lense or pod of <br /> sandy clay was encountered. Plate III , showing general soil <br /> types an the area, as from that 1952 publacatior. <br /> DEPTH TO GROUNDWATER <br /> A review of San Joaquin Co. Flood Control Maps indicates that <br /> the highest water level an this area occurred in the sprang of <br /> 1986 - approximately 45 bgl at this location; (Plate IV. ) The <br /> water table today as somewhere between 80 and 90 feet; far below <br /> the depth of the proposed soil borings. <br /> LOCATION OF NEARBY WELLS <br /> i <br /> 2 <br />