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Table 1 Well Details/Well Destruction Methods 4707 Pacific Avenue Stockton,California Casing Construction Current Well Current Depth to Screen Proposed Well yy Well ID Date ellTy)a Diameter WeIlDepth Depth Groundwater Interval Destruction Installed (inches) (feet bgs) (feet bgs) (feet below TOC) (feet bgs) Method W-1 1/31/1990 Monitorin 4 55.00 52.50 26.65 51-55 Pressure rount W-2 2/1/1990 Monitorin 4' 55.00 54.203 27.563 51-55 OVER-DRILL wMW-4 2/5/1990 Monitorin 4' 55.00 54.852 27.362 51-55 Pressure grount -'MW. 2/6/1990 Monitorin 455.00 53.902 27.34 50-55 Presxre greunt ,#W-6 3/3/1992 Monitorin 2 69.00 68.96 27.22 49-69 Pressure rount iKAW-7 3/3/1992 Monitorin 2' 69.00 68.582 27.872 49-69 Pressure rount W-8 3/4/1992 Monitorin 2' 69.00 66.902 25.852 49-69 Pressure rount W-9 8/10/1992 Monitorin 2' 70.00 69.672 27.252 50-70 Pressure rount -11 8/13/1992 Monitorin 2' 72.00 64.062 27.492 54-72 Pressure grount ' 11 -14 8/16/1999 Monitorin 2' 38.00 34.02 27.842 18-38 Pressure rount -_ 8/18/1999 Monitorin 2' 38.00 37.574 26.72° '18-38 -16 8/17/1999 M nitorina 2' 38.00 40.193 27.653 18-38 Pressure rount v,VW-1 3/2/1992 Extraction 4' 49.50 40.162 26.622 24.5 49.5 Pressure rount J'4W-2 3/9/1992 Extraction 4 50.50 44.853 27.053 25.5-50.5 OVER-DRILL JOW-3, 3/9/1992 Extraction 4' 50.50 35.092 27.132 25.5-50.5 Pressure rount -4 3/10/1992 ExVaction 4' 50.50 36.503 27.553 25.5-50.5 OVER-DRILL -5 12/3/1993 Extraction 4 31.50 - 6.5-31.5 OVER-DRILL s 22-32 Pressure rount -6 12/3/1993 ExVaction 4 1 32.00 --s - „R/W-7 8/16/1999 S a e 2' 60.00 58.22 27.023 55-60 OVER-DRILL -1 8/10/1992EMrection 6' 72.50 71.542 27.872 52.5-72.5 Pressure rount P-1 11/19/2001 Spa a 0.75 65.00 - 62-65 Pressure rount s 62-65 Pressure rount -2 11/19/2001 S a e 0.75 65.00 "'s s 62-65 Pressure rount -3 11/19/2001 S a a 0.75 65.00 s s 62-65 OVER-DRILL SP-4 11/19/2001 S a e 0.75 65.00 s s 62-65 Pressure rount V/SP-5 11/19/2001 S a e 0.75 65.00 s s 62 65 Pressure rount -6 11/20/2001 Spa a 0.75 65.00 s 62-65 OVER-DRILL P-7 11/20/2001 S a e 0.75 65.00 5 s -8 11/20/2001 S a s 5 e 0.75 65.00 62-65 Pressure rount _ NS 11/20/2001 S a a 0.75 65.00 62-65 Pressure rount Z37-40 Pressure grount s s rount , P-1 62-65 Pressure 0 11/20/2001 S a e 0.75 65.00 -s s 8P-11 11/20/2001 S a e 0.75 40.00 -s s 37 40 Pressure rount 12 11/20/2001 Spa a 0.75 40.00 - 37-40 OVER-DRILL P-13 11/19/2001 Sparge 0.75 40.00 - - Notes: bgs =below ground surface TOC =top of casing 1 =As reported in TRC Solutions August 2011 field data sheets. 2 =As measured prior to groundwater sampling on 8/5/2011. 3 =As measured prior to groundwater sampling on 1/17/12. 4 =As measured prior to groundwater sampling on 5/25/12. 5 = Not measured. loft