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• <br /> REGIONAL GEOGRAPHIC SETTING <br /> Ine property is located Just east of Highwa✓ 99, between Waterloo <br /> Road , (Hi gh qa/ r35, ) ana Fremont Street , (Highway 2u, ) about <br /> miles east of City Hall . The area is zoned for manuf actur i ng as,w <br /> tight industrial use; there are no residences in the immediate <br /> area. The Stockton Diverting Caval is a ahor-c distance to the <br /> e3 it, and a spur of the StocKron Terminri Eastern RR is ius-_ t-o <br /> tr-.e -Ouii'. Plate I g: ,,es mor-e detaz l s oz the immediate area. <br /> GEOLOGIC & GEOMORPHIC PROVINCE <br /> The site is located near the southern end of the Sacramento <br /> Valiey about 1 1/2 males south of the Calaveras River and 1 miles <br /> nor-cheast of the Stockton Deepwater Channel . Sediments in tnis <br /> area have been derived primarily from rewacrkec materiai from <br /> srteandering streams and flood plain uepositEi,. Ine or ag, nai �o_lr`L <br /> i = ourawash and erosion on of the ✓ol c an:.c ani me r amo- ph: c r oafs <br /> r` �r sn�•a during tnE_ t.4p l i a-ti ng a-� the Si errs t4ovada Pathol >th L o t ne <br /> Cask. <br /> The topography is one of ery low relief , wi -ch oral nY ashe <br /> r-r;wards the WeSt-50L.L hwest at about 5 feet per mile. Plate II 1 <br /> . a porLion of a USGS quadrangle sheet showing the location of the <br /> pr `jper Ly is relation to surrounding geol ogz c features. <br /> SOIL TYPES <br /> According to the 1952 publication issued by the University of <br /> California, Berkeley, surface soils :n 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 /> Storae Index of 24. It is 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 clary was encountered. Plate III , showing general soil <br /> types in the area, as from that 1 +52 publicatior . <br /> DEPTH TO GROUNDWATER <br /> (A r-e✓jew of San Joaquin Co. Flood Control Maps indicata1s that <br /> the highest water level in this area occurred in the spring of <br /> 1966 - approximately 45 bgl at T-his location; (Plate IV. ) The <br /> waT-e- table today is somewhere between 80 and 90 feet; far n eaow <br /> the 4,epul of Lne proposed soil borings. <br /> LOCATION OF NEARBY WELLS <br /> • <br />