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:Y <br /> ~ , <br /> ^+ v_Rft T►�ttN,�RY HYDFOGEOLOGIC ASSESSMENT REPORT <br /> I,! 5491'F Street,Banta,CaMbrnla <br /> Delta Project No.40-88-481 <br /> Page 6 <br /> TABLE 4 ' <br /> s <br /> i Well Number Year Drilled <br /> ` 1 1981 Domestic <br /> t{ <br /> 2 1955 Domestic <br /> 3 1981 Domestic <br /> ' 4 1980 Domestic <br /> F� <br /> 5 1981 Domestic <br /> 6 1952 Lbmeatk <br /> 771 <br /> 7 1976 DoiacrIIk' <br /> z <br /> 8 1972 Domestic. <br /> i. 9 1973 Domestic <br /> 10 1978 Domestic <br /> f r it 1978 Domestic <br /> + 12 1978 Domestic, <br /> 13 1952 Stock <br /> 24 1946 Unknown <br /> 8t :S 1953 Domestic ' <br /> r <br /> f' 16 1950 Irrigation <br /> �1 <br /> � t s� • � -, - � 1955 Tat . <br /> 1979 Unknown` h <br /> 1981 Domestic , e <br /> �t 1979 Domestic <br /> rr <br /> 3.0 BACK(:tjQ J VD iNPORMATI0N <br /> �y 31 ft: -- Geoloc <br /> Banta, California, is locatui wit:iin the Great Central Valley Geomorphic Province of Cblffor UL- The <br /> Central Valley Province i•bore ,ed to the east by the Sierra Nevada Mountains,and to the west by the <br /> xM Coast Range. Surface geolegy,in the Banta area consists primarily of recent all+mum and the Recent <br /> to Pleistocene age flood basin depc---its. Bot; units consst of gravel,sand,silt,and clay lenses...Recent <br /> alluvium deposits typic.: tot exceed 1:�, feet in thickness. Flood basin deposits crop out. <br /> tppro:dmately one mile north-test of Dant.. ;.,Aidmum thickness of flood basin deposits 1s 1,4W feet <br /> r <br /> This unit is typically finer-g.air,. ' ;han the alluvial deposits,and may also contain appreciable amounts <br /> f x of organk matter. <br /> l' L Site Geolm <br /> �• The surface of the 2- consists of a 2-inch-thick layer of asphalt overlaying a 4-inch-thick layer of <br /> aggregate base. Subsur:dc_ '�qy at the site was determined from soil borings advanced by EIs <br /> r <br /> • <br />