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TABLE 1 (CONTINUED) <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STA-nON <br /> 620 WEST CHARTER WAY,STOCKTON CALIFORNIA <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-3 01/28/92 8876 3328 --- 5548 --- ** <br /> 04/30/92 3275 --- 5601 --- 3990 <br /> 07/10/92 3335 --- 5541 --- 3990 <br /> 10/09/92d1� /30 02 --- 5874 --- 3980 <br /> 02/19/93 d `�5 76 --- 5300 --- 3980 <br /> MW-4 01/28/92 8846 ** ** ** 030 ** <br /> 04/30/92 3524 3523 53 23* 001 ** <br /> 07/10/92 3686 3668 51 74* 018 ** <br /> 10/09/92 <br /> 02/19/93 34 19 3418 54 28* 001 ** <br /> !VOTES y = Measurement and reference elevation taken from notch/mark on top north side of well casing <br /> 2 = 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 Assoclatesor Blaine Tech Services, Inc <br /> Aegis Environmental Inc <br /> 91 246/March 30 1993 <br />