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GEOMATRIX <br /> TABLE 4 <br /> WELL SURVEYING AND GROUNDWATER ELEVATION DATA <br /> U.S. Can/Welty Road <br /> Vemalis, Califomia <br /> Depth to Thickness of <br /> Top-of-Casing Water Below -Water Level Separate Phase <br /> Elevation' Top-of-Casing Elevation Petroleum <br /> Well Northing Easting (feet,MSL) Date (feet) (feet,MSL) (feet) <br /> MW-1 2053098.2 6333463.6 104.42 6/1/99 31.62 72.80 0.02 <br /> 5/21/02 NM' NM 0.01 <br /> MW-2 2053439.5 6333177.2 103.11 6/1/99 30.12 72.99 0.02 <br /> 5/21/02 32.44 70.67 sheen° <br /> MW-3 2053030.1 6333523.4 104.21 6/1/99 31.30 72.91 none <br /> 5/21/02 33.74 70.47 none <br /> MW-4 2052746.6 6333543.3 105.32 6/1/99 32.23 73.09 none <br /> 5/21/02 34.81 70.51 none <br /> WFSMW-1 NAS NA 105.31 6/1/99 NM NM NM <br /> 5/21/02 34.56 70.75 none <br /> Notes: <br /> Wellhead elevations and groundwater elevations were based on the National Geodetic Vertical Datum of 1929(NGVD29). The horizontal <br /> datum is based on the North American Datum of 1983 (NAD83). The benchmark used was United States Coast and Geodetic Survey brass <br /> disk with NGS designation"M-745'(PID Number MS0037);elevation of 104.18 feet(NGVD29). <br /> ' Monitoring well elevation in feet above mean sea level(MSL)based on benchmark elevation surveyed by RGA, July 1998. <br /> } <br /> NM=Not measured. <br /> ' Immeasurable sheen noted in well. <br /> S Not available <br /> is\doc_5afe\6000s\6447.001\report\us can tbis.xls <br />