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GEOMATRIX <br /> TABLE 2 <br /> WELL SURVEYING AND GROUNDWATER ELEVATION DATA <br /> Roberts Property <br /> Vernalis, California <br /> Depth to Water <br /> Below <br /> Tap-of-Casing Ground Water Leel Top-of-Casing <br /> Elevation2 Elevation Elevation 7128/98 <br /> Well Northing Easting (feet,MSL) (feet,MSL) (feet,MSL) (feet) <br /> MW-1 2052339.9 6333953.4 t07.40 105.30 <br /> MW-2 2052379.6 6334020.8 106.36 104.60 73.78 32.58 <br /> MW-3 2052410.8 6333904.3 106.54 104.80 74.72 31.82 <br /> MW-4 2052296.6 6333956.5 147.33 105.80 74.59 32.74 <br /> Notes: <br /> Wellhead elevations and groundwater elevations were based on the National Geodetic Vertical Datum of <br /> 1929(NGVD29). The horizontal datum is based on the North American Datum of 1983 (NAD83). The <br /> benchmark used was United States Coast and Geodetic Survey brass disk with NGS designation"M-745" <br /> (PID Number MS0037);elevation of 144.18 feet(NGVD29). <br /> 2 Monitoring well elevation in feet above mean sea level(MSL)based on benchmark elevation surveyed <br /> by RGA,July 1998. <br /> 1ADOC_5AFEL501 l Ubl-WellSurvey <br />