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14*9� <br /> GEOMA-rRfx <br /> TABLE 7 <br /> WELL SURVEYING AND GROUNDWATER ELEVATION DATA <br /> Roberts Property <br /> Vernalis, California <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 2052339.9 6333953.4 107.411 7128198 NA NA 0.5 <br /> 5121102 NA NA 0.25 <br /> MW-2 2052379.6 6334020.8 106.39 7128198 32.58 73.81 NA <br /> 5121102 36.59 69.80 NA <br /> MW-3 2052410.8 6333904.3 106.54 7128198 31.82 74.72 NA <br /> 5121/02 36.23 70.31 NA <br /> MW-4 2052296.6 6333956.5 107.33 7128198 32.74 74.59 NA <br /> 5121102 37.2 70.13 NA <br /> Notes: <br /> Wellhead elevations and groundwater elevations were based on the National Geodetic Vertical Datum of 1929(NGVD29). <br /> The horizontal datum is based on the North American Datum of 1983 (NAD83). The benchmark used was United States <br /> Coast and Geodetic Survey brass disk with NGS designation"M-745"(PID Number MS0037);elevation of 104.18 feet <br /> (NGVD29). <br /> Monitoring well elevation in feet above mean sea level(MSL)based on benchmark elevation surveyed by RGA,duly 1998. <br /> ' NA =Not available or not applicable. <br /> :%riot. safe!50aos15611.001veportlsoil gw Vs.xls <br />