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TABLE 1 <br /> Well Construction Details <br /> MASONITE (former PREM DOR) <br /> 433 West Scots Avenue, Stockton, California <br /> Borehole Total Casing Casing Casing Filter Pack .Bentonite Grout <br /> Installation Drilling Slot Size Filter Screen Interval <br /> Well ID Diameter Depth(feet Diameter Material Elevation Interval Interval Interval <br /> Date Company (inch) bsg) (inch) (schedule) (inch) Pack. (feet MSL)' (feet bsg) (feet) (feet) (feet) <br /> MW-1 10-09-2003 CDI 8 34 2 PVC 40 0.020 #2/12 7.70 14 to 34 12 to 34 10 to 12 1 to 10 <br /> MW-2 10-10-2003 CDI 8 34 2 PVC 40 0.020 92/12 7.88 14 to 34 12 to 34 10 to 12 1 to n, <br /> MW-3 10-16-2003 CDI 8 34 2 PVC 40 0.020 92/12 7.74 15 to 35 12 to 34 10 to 12 1 t <br /> MW-4 07-21-2005 CDI 8 36.5 2 PVC 40 0.020 #3 7.53 15 to 35 13 to 36.5 11 to 13 1 to 13 <br /> EMW <br /> -5 07-21-2005 CDI 8 35 2 PVC 40 0.020 #3 7.52 15 to 35 13 to 35 11 to 13 1 to 13-6 '03-19-2008 AWA 8 30.5 2 PVC40 0.020 #2/12 7.34 10 to 30 8 to 30 6 to 8 1 to 6 <br /> -7 03-19-20081 AWA 1 8 1 30.5 1 2 1 PVC40 1 0.020 1 #2/12 1 7.75 10 to 30 8 to 30 6 to 8 1 to 6 <br /> Notes: <br /> MSL: mean sea level MW:ground water monitoring well <br /> bsg: below surface grade <br /> btoc:below top of casing <br /> 1:Survey completed 2008 by Morrow Surveying,Inc.of West Sacramento,California on via elevation based on Stockton benchmark#102. <br /> CDI:Cascade Drilling,Inc.of Rancho Cordorva,California <br /> Advanced GeoEnvironmental,Inc. <br />