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' i i i �� � � �■ li � � i i i � <br /> 4r TABLE 1114TINUEDM <br /> ) • <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STATION <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> (Measurements in feet) <br /> I <br /> Monitoring Date Reference Depth to Depth to Groundwater Well <br /> Well Elevation Groundwater' Floating Elevation' Depth <br /> (top of casing)' Liquid <br /> I Hydrocarbons' <br /> 05/06/91 101.65 57.55 57.53 44.14* 64.85 <br /> 06/06/91 57.38 --- 44.27 --- 64.93 <br /> 07/17/91 58.02 57.94 43 69* --- <br /> 08/02/91 58.49 57.79 43 69* - 64.93 <br /> 09/12/91 58.72 57.89 43.55* ffi --- <br /> 10/08/91 58.93 57.85 43.53* --- <br /> 02/26/92 55.65 55.64 46.01* f� --- <br /> 05/12/92 56.95 56.94 44.71* --- <br /> NOTES, ' - Measurement and reference elevation taken from notch/markon top north side of well casing <br /> Elevation referencedto an arbitrary bench mark <br /> -- - Not measured <br /> Well Depth = Measurementfrom top of casing to bottom of well <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 /> Aegis Environmental Inc <br /> July 27 5992 <br /> i <br />