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KEI-P88-1013 .QR6 <br /> November 10, 1993 <br /> TABLE 1 (Continued) <br /> SUMMARY OF MONITORING DATA <br /> (UNOCAL WELLS) <br /> ♦ The depth to water level measurement was taken from the top of <br /> the well casing. Prior to June 28 , 1993 , the water level <br /> measurement was taken from the top of the well cover. <br /> -- Sheen determination was not performed <br /> * The elevations of the tops of the well casings have been <br /> surveyed relative to MSL, per the City of Stockton Benchmark <br /> No. 14 (elevation = 10 . 95 MSL) . <br />