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- TABLE 2 <br /> ANALYTICAL RESULTS OF SOIL SAMPLES <br /> Elkhorn Country Club <br /> 1050 Elkhorn Drive, Stockton, California <br /> June 20 and August 30, 1994 <br /> (mg(kg) <br /> TPH as Ethyl- <br /> Sample <br /> th 1Sample ID Gasoline Benzene Toluene benzene Xylene <br /> B1-20 230 0.15 9.1 4.1 23 <br /> B1-25 20 0.25 6.2 0.59 3.0 <br /> B1-30 3,200 15 220 81 430 <br /> B1-35 1,600 3.4 65 39 160 <br /> MWI-25 ND ND ND ND ND <br /> MW1-35 ND ND ND ND ND <br /> MW2-25 ND ND ND ND 0.008 <br /> - MW2-30 ND ND ND ND 0.013 <br /> MW2-35 ND ND 0.007 ND 0.011 <br /> MW3-20 ND ND ND ND ND <br /> MW3-25 1.3 0.012 0.085 0.048 0.22 <br /> MW3-30 180 1.0 9.0 4.3 21 <br /> MW3-35 ND 0.008 0.026 ND 0.017 <br /> mg&-g = pads per million(ppm) <br /> AID = None Detected <br /> 4.3 Relative Groundwater Elevation and Gradient <br /> The relative elevation of the groundwater in each well was calculated by subtracting the <br /> J depth to water from the surveyed casing elevation (Table 1). Groundwater was encountered <br /> at a depth of approximately 37 feet in each well. The groundwater gradient was calculated <br /> to be 0.0029 ft/ft directed S 76° E (Figure 3). The depth-to-water is approximately 15 feet <br /> higher than expected based of the San Joaquin County Flood Control depth to groundwater <br /> map for Fall 1993. The flow direction, however, is consistent with regional trends. <br /> Gmbgiol A,&S&Mi .lac 7 <br /> BN <br /> Eud—PIEA .45.p.19% <br />