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I <br /> f WESTERN 1 3s6 I-A)I ]IFAMF14 51 RF-1=i <br /> GEO-ENGINEERS woolll. (5 0 A c00-3 <br /> 530) 668-568-s300ao, , <br /> CAI 1F (-ONTRAC 1 OR#513557 F AX (5 10)1)62-0273 <br /> RFG11S r1'RFn CGF010(TNTS ti�era rJJ0t1)e1 L0171 << <br /> JULY-SEPTEMBER-2000 : 21), <br /> QUA R TERL Y GROUND WA TER MONITORING RE R''1 - <br /> FOR ARC PUMP & WELDING, 1211 SO. TURNPIKE RD., <br /> STOCKTON, CA <br /> OCTOBER 30, 2000 -� <br /> PURPOSE AND SCOPE <br /> The following report documents the Third Quarter 2000 collection and certified <br /> laboratory analysis of groundwater samples from three monitoring wells located at Aires <br /> Pump and Welding, 1211 So Turnpike Road, Stockton, CA <br /> 40 SITE LOCATION AND DESCRIPTION <br /> The site address is 1211 So Turnpike Road, Stockton, CA The 0 33 parcel is located at <br /> the northeastern corner of the intersection of Commerce Street and So Turnpike Road in <br /> an ai ea zoned for light manufacturing and industrial use (Figure 1) The property is <br /> located in projected Section 14, TIN, ME, of the MDB&M at approximately 12 feet <br /> above mean sea level (Figure 2) <br /> The property previously contained one 500 gallon gasoline Undeiground Storage Tank <br /> (UST), that was used to store leaded and unleaded gasoline from the late 1950's or early <br /> 1960's through 1987 (Figure 3) The UST, product dispetmr, ai W associated <br /> underground piping were removed from the site in 1987 <br /> The pi operty owner has installed three monitoring wells in the course of itxv iigatmg the <br /> soil and groundwater conditions at the site <br /> LOCAL GEOLOGY AND HYDROGE-OLOGIV <br /> The site is located on surface soils belonging to the Stockton Adobe Clay setits These <br /> soils are derived from Recent alluvial fan and floodplain deposits The 50 feet of <br /> explored section at the site consisted of light brown silty clay with lenses of sandy clays <br /> and silts <br />