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r v x <br /> 01 <br /> MEN <br /> 111 <br /> i <br /> _ F <br /> k <br /> Problem Assessment Report December 5, 1989 <br /> '1 USA Petroleum Station No. 65, Lodi, California AGS 87050-3 <br /> 4 <br /> In boring B-7, ground water was encountered at 44 feet below grade at the bottom of a <br /> coarse-grained sand interval. Ground water also equilibrated at 44 feet below grade. <br /> Ground-Water_Gradient <br /> 1 <br /> Table 8 shows cumulative elevations of the ground water with respect to mean sea level. <br /> 9 i <br /> The groundwater elevation was surveyed for all nine wells with respect to mean sea <br /> level April 18, 1989,as discussed under Field Methods. The direction of ground-water <br /> flow was evaluated using the data collected in January, February, March, and April 1989. <br /> The flow direction was found to be to the , ' tff <br /> a"It month. This is <br /> consistent with the 1987 and 1988 evaluations of the ground-water flow direction. The 3 <br /> Ground-Wafer Gradient Map (Plate P-18) displays the ground-water elevation data from <br /> April.l8, 1989. den was�.ca as l (12,5 Tfte:Soiit lfau s <br /> OOZE,N app ® e ial Yt� t`i g t e3g n at�c s 1�#i"�rE <br /> t <br /> r , 30 . <br /> Apii lied OeoSysfe n-9 •-:_. <br /> 41 <br /> z <br />