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r r r r <br /> Table 3-2 <br /> Historical and Current Groundwater Analytical Results ' <br /> San Joaquin County Human Services Agency Building <br /> Stockton,California <br /> Analyte Concentration L <br /> Groundwater <br /> Well No. Sample Date Elevation feet Benzene Toluene Eth (benzene X lens(Total) TPH TPH-e Total Lead <br /> MW-7 8/5/1991 -37.81 190 ND 5.0 NO 5.0 ND 5.0 1,700 ND 50 ND 5 <br /> 4/16/1993 -38.36 1.7 1.0 NO 1.0 ND 1.0 ND 50 49 NO 3 S <br /> 6/3/1993 -37.74 1.5 ND 1.0 ND 1.0 ND 1.0 ND 50 37 J 18 l <br /> 8/13/1993 -37.81 ND 1.0 ND 1.0 ND 1.0 ND 1.0 ND 50 <br /> 10/7/1993 -38.28 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 7/25/1995 -30.40 ND 0.50 ND 0.60 ND 0.50 ND 0.50 ND 50 <br /> 12/4/1996 -25.59 1.3 NO 0.50 ND 0.50 ND 2.0 220 - <br /> 5/21/1997 -21.52 2.6 0.7 ND 0.50 ND 2.0 320 - <br /> 12/16/1997 -22.44 0.5 ND 0.50 ND 0.50 ND 2.0 ND 50 <br /> 6/18/1998 -16.88 9.8 ND 0.50 ND 0.50 ND 2.0 270 <br /> 12/10/1998 -16.57 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 5/19/1999 -15.13 2.8 ND 0.50 ND 0.50 ND 0.50 73 <br /> 11/16/1999 -16.29 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 5/11/2000 -14.62 1.2 ND 0.50 ND 0.50 3.2 53 <br /> 11/2/2000 -15.89 0.68 ND 0.50 ND 0.50 ND 1.50 189 <br /> 5/16/2001 -15.24 1.3 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 2/5/2002 -16.66 2.8 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 6/25/2002 -17.09 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 12/11/2002 -19.01 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 6/10/2003 -18.56 1.3 1.2 1.0 3.1 82 <br /> 1/13/2004 -19.76 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> 6/24/2004 -19.56 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 - - <br /> 12/16/2004 -21.11 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 ` <br /> 6/29/2005 -18.36 ND 0.50 ND 0.50 ND 0.50 NO 0.50 ND 50 <br /> 32 '1F 12/1312005 -19.60 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 50 <br /> MW-8 8/5/1991 -38.17 ND 0.50 ND 0.50 ND 0.50 ND 0.50 ND 20 74 6.8 <br /> 4/15/1993 -38.11 ND(1.0) ND 1.0) ND(1.0 ND 1.0 2,300 N_D(48) ND 3 <br /> 6/411993 -37.57 ND 1.0) ND 1.0 ND 1.0 ND(1.0) 2,200 56 29 <br /> 8/13/1993 -37.72 ND 1.0 ND 1.0 ND 1.0 ND 1.0 1,700 <br /> 10/7/1993 -38.17 ND 0.50 ND 0.50 ND 0.50 ND 0.50 3,500 - <br /> 7/25/1995 -30.25 0.59 ND 0.50 ND 0.50 ND 0.50 820 <br /> 1213/1996 -25.35 ND 0.50 ND 0.50 ND 0.50 ND 2.0 1,200 <br /> 5/20/1997 -21.32 ND 0.50 ND 0.50 0.5 ND 2.0 920 <br /> 12/16/1997 -22.17 0.6 ND 0.50 ND 0.50 ND 0.50 600 <br /> 331� <br /> 5of6 <br />