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- :" .z-... r• � _ atm.f.-` � w'���;.Sa," ,;... +'"tl.�-Yy{'r.:.'"�•"',�+'- '?min..- _ -.��i v.o-nu�i.A� --r���.. y,��.��.. t�°r� .w� ..�N_s � '�'"` -.s-'o �-v- �a'. �-„t:�. "r �F: <br />�' -+-•'R-M". :..� w,49 � -.'7 ��: ���„ ., � Y,}sw�� ��' ?'"e',h: �' �'a. ��="��,f-�: �^°�.?' ^'`�,",�;"p�" � ;r` -" ��C,ia+wr„"�-'3_%�'.w. �# <br /> May 17, 1991 <br /> Work plan California AGS 31009-1 <br /> ARCO Service Station No.2168, Stockton, <br /> noted are probably inactive,and other wells may exist near the site but do not appear in the <br /> records. <br /> a <br /> TABLE 1 <br /> SUMMARY OF WELL DATA <br /> ARCO Service Station No. 2168 <br /> 441 West Charter Way <br /> r� Stockton, California <br /> Year <br /> Well Drilled Use <br /> Number owner <br /> 1989 Monitoring <br /> 1 McCormick & Baxton 1963 Industrial <br /> H 2 Fibre Berard <br /> 3 Stockton Scavenger 1988 Test <br /> 1965 Domestic <br /> 4 Ervin McFadden <br /> 19`�g Industrial <br /> 5 Nelson Ready Mix Domestic <br /> 6 Western State Steel 1985 <br /> REGIONAL GEOIAGY AND HYutROGEOLOGY <br /> The site area is underlain by the Lower Member of the Modesto Formation, which is of <br /> Pleistocene age. Sediments of this formation consist of unconsolidated clay, silt, and sand <br /> (Wagner. et al., 1987). <br /> .+ The site is in the Eastern San Joaquin County Ground-Water Basin(California Department <br /> of Water Resources, 1980). According to this reference the groundwater basin has been <br /> developed for intensive irrigation,domestic, industrial, municipal,and stock use. Based on <br /> regional maps prepared from 1988 groundwater data by the San Joaquin County Flood <br /> Control and Water Conservation Disti Ict,we expect the depth to ground water near the site <br /> 4 d <br />