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i • i <br /> TABLE 1 (CONTINUED) <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STATION <br /> 6131 PACIFIC AVENUE, STOCKTON, CALIFORNIA <br /> (Measurements in feet) <br /> I <br /> i <br /> Monitoring Date Reference Depth to Depth to Groundwater Thickness of Well <br /> Well Elevation Groundwater' Floating Elevation' Floating Liquid Depth <br /> (top of casing)' Liquid Hydrocarbons <br /> Hydrocarbons' <br /> MW-3 07/17/91 101.65 58.02 57.94 43.69* 0.08 --- <br /> 08/02/91 58.49 57.79 43.69* 0.70 64.93 <br /> 09/12/91 58.72 57.89 43.55* 0.83 --- <br /> 10/08/91 58.93 57.85 43 53* 1.08 --- <br /> 02/26/92** 55.65 55.64 46.01* 0.01 --- <br /> 05/12/92** 56.95 5694 44.71* 0.01 --- <br /> 07/08/92** 57.68 5767 43.98* 0.01 --- <br /> NOTES ' = Measurement and reference elevation taken from notch/mark on top north side of well casing <br /> 2 = Elevation referencedto an arbitrary benchmark <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 depthto water <br /> SP G = Specific gravity unweathered gasoline = 0 75,diesel= 0 80 <br /> LHT= Measured liquid hydrocarbon thickness <br /> * - Data collected by Emcon Associates of Sacramento, California <br /> Aegis Environmental Inc <br /> 90-020/October 14 1992 <br />