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1386 EAST BEAMER STREET <br /> WE �ESTEPJV WOODLAND, CA 95776-6003 <br /> GE0-,E1VGIIVE RS FAX (916) 662-0273 <br /> CALIF CONTRACTOR #513857 A CORPORATION (916) 668-5300 <br /> �. REGISTERED GEOLOGISTS <br /> OCTOBER-DECEMBER 1997 <br /> QUARTERLY GROUNDWATER MONITORING REPORT <br /> FOR SANCHEZ PROPER TY, 18 76 COUNTR Y CL UB BL VD., STOCKTON, CA <br /> MARCH 6, 1998 <br /> PURPOSE AND SCOPE <br /> The following report documents the Fourth Quarter 1997 collection and certified laboratory <br /> analysis of groundwater samples from five monitoring wells located at 1876 Country Club Blvd , <br /> Stockton, CA <br /> SITE LOCA'T'ION AND DESCRIP'T'ION <br /> The site address is 1876 Country Club Blvd , Stockton, CA It is located at the southeast corner of <br /> the intersection of Mission Street and Country Club Blvd. (Figure 1) The property is located in <br /> projected Section 4, T1N,R6E of the MDB&M at approximately five feet above mean sea level <br /> The property previously contained two 1000 gallon gasoline Underground Storage Tanks (UST's), <br /> product dispensers, and associated underground piping (Figure 3) The UST's, dispensers, and <br /> piping were removed from the site in 1989 <br /> The property owner has installed five monitoring wells in the course of investigating the soil and <br /> groundwater conditions at the site <br /> LOCAL GEOLOGY AND HYDROGEOLOGY <br /> The site is located on surface soils belonging to the Stockton Adobe Clay and Honeycut Clay <br /> series They are derived from Recent alluvial fan and floodplain deposits The 26 feet of explored <br /> section consisted of clay and silt overlying interbedded Ienses of silty and clayey sands below 20 <br /> feet <br /> The groundwater in the vicinity of the site is unconfined Groundwater elevation at the site varies <br /> from a wet year high of 12 feet bgs to about 35-40 feet bgs during the previous drought period <br /> Groundwater flow direction at the site has generally been to the northeast <br /> 1. <br /> 1 Sanchez QM 12-97 <br />