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Q11AR7TRLY A ONFORING REPORT.FOURTH QUARTER OF 1990 <br /> 7910 Lowcr Sacramento Road,Stockton,California <br /> Shell WIC No.204.7524.0808 <br /> 1 Belles Project No.40-88-147 <br /> Page 3 <br /> r ' <br /> f ; <br /> 3.0 PROJECT RPSIJLTS <br /> s <br /> .; 3.1 Grund Water Elevation Data <br /> Depths to ground water were measured at monitoring weals MW-1,MW-2,and MW-3 on August 15 and <br /> September 26,1989,and May 11,June 26,and October 11,1990. Ground water elevations are summarized <br /> In Table 2. Using ground water elevation data collected tiering the October 11,1990 sampling event, the <br /> ground water flow direction was towards the north-northwest at a hydraulic gradient of approximately 0.003. <br /> A ground water contour map based on measurements calIected on October 11, 1990, Is illustrated in <br /> Figure 3. <br /> i <br /> Fri <br /> r+a <br /> TABLE 2 <br /> Ground Water Elevations <br /> Reference <br /> Monitoring Well Elevation From Depth to Ground Water <br /> J ocation Date Top of Casings Ground Water fftl Elevation ft <br /> MW-1 08/15/89 98.11 57.50 40.61 <br /> 09/26/89 98.11 58.59 39.52 <br /> 05/11190 98.11 58.61 39.50 <br /> 06/26/90 98.11 57.00 41.11 <br /> 10/11190 98.11 58.92 39.19 <br /> MW-2 08/15189. 99.09 58.54 4055 <br /> 09/26/89 99.09 59.67 39.42 <br /> 05/11{90 99.09 S7.75 41.34 f <br /> t r 06/16/90 99.09 58.03 41.06 <br /> k 10/11/90 99.09 59.99 39.10 <br /> t MW-3 08/15189 98.93 58.35 40.58 i <br /> &s <br /> 09/26189 98.93 59.44 39.49 <br /> 05/11190. 98.93 . 57.43 41.50 ' <br /> pp ¢ 06/26/90 98 43 57.80 41.13 <br /> I 10/11/90 98.93 59.90 39.03 <br /> 1 <br />