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TABLE 1 <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STATION <br /> 620 WEST CHARTER WAY STOCKTON CAI IFORNIA <br /> (Measurements In feet) <br /> Monitoring Reference Depth to Depth to Groundwater Product Well <br /> Well Date Elevation Groundwater' Product' Elevation Thickness Depth <br /> (top of casing)' <br /> MW-1 01/28/92 8778 31 28 --- 5650 --- ** <br /> 04/30/92 31 21 --- 5657 --- 4010 <br /> 07/10/92 31 42 --- 5636 --- 4010 <br /> 10/09/92 492 --- 5286 --- 4010 <br /> 02/19/93 <�9 74 --- 5804 --- 4014 <br /> MW-2 01/28/92 8985 ** ** ** 033 ** <br /> 04/30/92 3419 3378 55 97* 041 ** <br /> 07/10/92 3492 3455 55 21* 037 ** <br /> 10/09/92 3315 3280 56 96* 035 ** <br /> 02/19/93 <33 39 3338 56 47* 001 ** <br /> NOTES = Measurement and reference elevation taken from notch/mark on top north side of well casing <br /> = Elevation referenced to mean sea level <br /> No free product or sheen <br /> * = Corrected groundwater elevation CDTW= DTW- (SP G x LHT) <br /> CDTW= Corrected depth to water <br /> DTW=Measured depth to water <br /> SP G =Specific gravity unweathered gasoline=0 75 diesel=0 80 <br /> LHT= Measured liquid hydrocarbon thickness <br /> ** = Not measured by Emcon Associatesor Blaine Tech Services Inc <br /> Aegis Environmental Inc <br /> 91 248/March 30 1993 <br />