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KEI-P88-1013 .QR5 <br /> August 9 , 1993 <br /> TABLE 1 (Continued) <br /> SUMMARY OF GROUND WATER MONITORING AND PURGING DATA <br /> (UNOCAL MONITORING WELLS) <br /> -- Sheen determination was not performed. <br /> * Monitored only. <br /> ** The elevations of the tops of the well casings have been <br /> surveyed relative to Mean Sea Level (MSL) (elevation = 10. 95 <br /> MSL) . <br /> *** The elevations of the tops of the well covers have been <br /> surveyed relative to MSL, per City of Stockton Benchmark No. 14 <br /> (elevation = 10. 95 MSL) . <br /> NOTE: The depths to ground water on June 28 , 1993 , were measured <br /> from the tops of the well casings. The depths to ground <br /> water on April 26, 1993 , and May 27 , 1993 , were measured <br /> from the tops of the well covers. <br />