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TABLE 1 <br /> WELL CONSTRUCTION DETAILS <br /> Cohn Property <br /> 3755 Munford Avenue <br /> Stockton, Callfornai <br /> Well Total Casing Filter Pack <br /> Well Installation Elevation Casing Depth Well Depth Diameter Screened Interval <br /> Number Date TOC (feet) Material (feet) (feet) (Inches) Interval (feet) (feet) <br /> MW-1 Nov-98 2888 PVC 7850 7850 2 585 - 785 --- <br /> MW-2 Nov-98 2804 PVC 7850 7850 2 585 - 785 --- <br /> MW-3 Nov-98 2841 PVC 7850 7850 2 585 - 785 --- <br /> MW-4 Dec-00 2929 PVC 78 50,*E?1.5-480 2 60 -80 --- <br /> MW-5 Dec-00 2845 PVC 80 $0 2 60 -80 --- <br /> MW-6 Dec-00 2875 PVC 80 80 2 60 - 80 --- <br /> MW-7 Dec-00 2810 PVC 80 80 2 60 - 80 --- <br /> MW-8 Dec-00 2787 PVC 100 100 2 85 - 100 --- <br /> MW-9 Sep-01 2796 PVC 81 81 2 60 -80 --- <br /> MW-10 Sep-01 2956 PVC 81 81 2 60 -80 --- <br /> MW-11 Feb-06 2800 PVC 88 88 2 83 -88 81 -98 <br /> d <br /> MW-12 ad&U 06 2819 PVC 92 92 2 87 - 92 85 -92 <br /> MW-13 Feb-06 2831 PVC 110 110 2 105 - 110 103 - 110 <br /> MW-14 Feb-06 2832 PVC 146 146 2 141 - 146 139 - 146 <br /> DW --- 2968 --- --- --- --- Open 130-140 --- <br /> PZ-1 a (s) Sep-01 2819 PVC 80 80 2 64 -65 --- <br /> PZ-1 a(d) Sep-01 2809 PVC 80 80 2 78 - 79 --- <br /> PZ-1 b (s) Sep-01 2825 PVC 80 80 2 61 -62 --- <br /> PZ-1 b (d) Sep-01 2823 PVC 80 80 2 78 - 79 --- <br /> • VW-1 Sep-01 PVC 655 655 2 50 -65 <br /> VW-2 Sep-01 PVC 655 655 2 50 -65 ___ <br /> VW-3 Sep-01 PVC 655 655 2 50 -65 --- <br /> AS-1 Sep-01 2794 PVC 85 85 4 55-70, 75-85 --- <br /> AS-1 (s) Sep-01 2817 PVC 85 85 4 64 - 65 --- <br /> AS-1 (d) Sep-01 2816 PVC 85 85 4 78 - 70 -- <br /> Notes T� <br /> --- = Information could not be found DW _ Domestic Well <br /> TOC = Top of Casing VW Vapor well ' A I _,�/ <br /> PVC = Polyvinyl Chloride AS -Air Sparge <br /> PZ = piezometer - Destroyed Late 2004 -46 <br /> iwS��� It 'll <br /> APEX ENVIROTECH INC <br /> Page 1 to i COH58 001 <br />