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TABLE 5 <br /> MONITORING WELL CONSTRUCTION DETAILS <br /> US Can-Welty Road <br /> Vernalis,California <br /> Measuring Point Screened Well Bentonite Seal <br /> Date Total Depth Elevation Interval Casing Diameter Slot Size Interval <br /> Well I.D. Installed (feet bgs) (feet above MSL) (feet bgs) Type (inches) (inches) (feet bgs) <br /> MW-1 06/01/99 40 106.38 25-40 PVC 2 0.020 --- <br /> MW-2 06/01/99 40 105.01 NA PVC 2 0.020 --- <br /> MW-3 06/01/99 40 106.13 NA PVC 2 0.020 --- <br /> MW-4 06/01/99 NA 107.18 NA PVC 2 --- --- <br /> MW-5 03/16/05 45 103.34 25-44.5 PVC 2 0.010 21-23 <br /> WFMW-1 06/01/99 49 107.14 24-48 PVC 2 --- --- <br /> Abbreviations: <br /> bgs=Below ground surface <br /> MSL=Mean sea level;measuring point elevation surveyed by West Yost and Associates on January 9,2002 <br /> NA=not available <br /> Page 1 of 1 <br />