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N <br /> Chevron U.S.A. - Page 11 <br /> 8.0RESULTSOVSURM <br /> A survey of each well was conducted by a licensed surveyor in order to <br /> establish relatively accurate surface elevations. The surface elevation were <br /> utilized in conjunction with ground water depth measurements to help evaluate <br /> L <br /> ground water gradient and direction of flow. The results of the survey have been <br /> summarized on Table I as follows: <br /> TABLE I <br /> Results of curve <br /> (Elevation expressed in feet above mean sea-level <br /> Surface Depth to Ground hater <br /> M Xell I.D. Elevation Ground Yater Elevation <br /> MW-} 35.45 70.88 -35.43 <br /> MW-2 36.67 72.14 -35.47 <br /> Mho-3 35.71 71.18 -35.47 <br /> Ground water monitoring well locations are shown on Plate included at the <br /> a end of the text,,. - <br /> 9.0 GROUND WATER GRADIENT ASSESSMENT <br /> The elevations obtained from the survey of the well heads was compared to <br /> depth to ground water measurements made at eaoh well location in order to <br /> determine ground water elevations. The ground water elevation calculated from <br /> measurements made at the time of our field study were utilized in assessing <br /> L- ground water gradient and direction of ground water flow at the subject property. <br /> Based upon review of the ground water elevation data and locations or the ground <br /> xate.r_ monitoring wells, an interpreted ground .water gradient was mechanically <br /> Plotted, and is illustrated on Plate 3 of this report. The ground water is <br /> interpreted as being near flat, with the gradient in August. of 1989 calculated at <br /> aPproxlmately"8.3x10-4 <br /> (0-00083 ft t,} flowing in a east-northeasterly <br /> direction. <br /> DAMES S MOORS <br />