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TABLE 1 <br /> WATER LEVEL DATA <br /> ' SHELL SERVICE STATION <br /> 7910 LOWER SACRAMENTO ROAD, STOCKTON, CALIFORNIA <br /> (Measurements in feet) <br /> Monitoring Reference Depth to Groundwater Well <br /> Well Date Elevation Groundwater' Elevation Depth <br /> (top of casing)' <br /> MW-1 08/15/89 + 9811 5750 4061 --- <br /> r09/26/89 + 5859 3952 --- <br /> 05/11/90 + <br /> -- <br /> 05/11/90 + 5861 3950 --- <br /> 06/26/90 + 5700 41 11 --- <br /> 10/11/90 . <br /> --10/11/90 + 5892 3919 --- <br /> 02/01/91 + 5863 3948 --- <br /> ' 05/08/91 + 5742 4069 --- <br /> 08/20/91 + 5897 3914 <br /> 11/21/91 + 5753 4058 --- <br /> 02/20/92++ 5521 4290 6830 <br /> MW-2 08/15/89 + 9909 5854 4055 --- <br /> 09/26/89 + <br /> -- <br /> 09/26/89 + 5967 3942 --- <br /> 05/11/90 + 5775 4134 <br /> 06/26/90 + 5803 4106 --- <br /> 10/11/90 + 5999 3910 <br /> 02/01/91 + 5970 3939 --- <br /> 05/08/91 + 5898 4011 --- <br /> 08/20/91 + 6000 3909 <br /> --- <br /> 11/21/91 + 5848 4061 <br /> 02/20/92++ 5625 4284 681 <br /> ' MW-3 08/15/89 + 98 93 5835 4058 --- <br /> 0928 + 5944 3949 --- <br /> ' <br /> 05/11/90 + 5743 41 50 __- <br /> 06/26/90 + 5780 41 13 <br /> 10/11/90 + 5990 3903 --- <br /> 02/01/Dl <br /> -- <br /> 02/01/D1 + 5946 3947 --- <br /> 05/08/91 + 5875 4018 --- <br /> 08/20/91 + 5979 3914 --- <br /> 11/21/91 <br /> --11/21/91 + 5826 4067 --- <br /> 02/20/92++ 1 5601 1 4292 1 68 1 <br /> NOTES ' = Measurement and reference elevation taken from notch/mark on top north side <br /> of well casing <br /> 2 = Elevation referenced to mean sea level or arbitrary bench mark <br /> + = Measured by Delta Environmental Consultants, Inc , of Rancho Cordova, <br /> California <br /> ++ = Measured by Emcon Associates of Sacramento, California <br /> Not measured <br /> Well Depth Measurement from top of casing to bottom of well <br /> ' Aegis Environmental Inc <br /> June 10 1992 <br />