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1 <br /> 1 <br />' REGIONAL GEOGRAPHIC SETTING <br />' The property is located lust east of Highway 99, between Waterloo <br /> Road, (Highway 68, ) and Fremont Street, (Highway 2c,, ) about 2--3 <br /> males east of City Hall . The area is zoned for manufacturing and <br />' light industrial use; there are no residences in the immediate <br /> area. The Stockton Diverting Canal is 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 males <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 Batholith to the <br /> east. The topography is one of very low relief , with drainiage <br /> towards the west-southwest at about 5 feet per male. PIate 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 is derived from reworked basin <br /> sediments. It is generally dark gray, fine textured, with a <br /> Storie Index of 24. It is typically underlain by calcareous <br />' subsoils containing hardpan or hardpan-lake 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 in the area, is from that 1952 publication. <br /> DEPTH TO GROUNDWATER <br />' A review of San Joaquin Co. Flood Control Maps indicates that <br /> the highest water level in this area occurred in the spring of <br />' 1966 - approximately 45 ` bgl at this location; (Plate IV., ) The <br /> water table today is somewhere between BU and 94 feet; far below <br /> the depth of the proposed soil borings. <br /> LOCATION OF NEARBY WELLS <br /> I 2 <br />