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Table 3-2 <br /> Historical and Current Groundwater Analytical Results ° <br /> San Joaquin County Human Services Agency Building <br /> Stockton,California <br /> Analyte Concentration C ig/L <br /> Groundwater <br /> Well No. Sample Date Elevation tset) Benzene Toluene Eth (benzene Xylene Total TPH TPH-e Total Lead <br /> MW-3 12/30/1988 NM 2.8290 4.2 0.73 2.6 NO 200 NO 500 1,300 <br /> MW-3A 7/25/1995 -30.02 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 12/3/1996 -25.29 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 <br /> 5/20/1997 -21.22 NO 0.50 NO 0.50 NO 0.50 NO 2 150 - - <br /> 12116/1997 -22.18 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 <br /> 6/18/1998 -17.24 2.0 NO 0.50 NO 0.50 NO 2 240 <br /> 12/10/1998 -16.43 1.1 NO 0.50 NO 0.50 NO 0.50 75 - <br /> 5/18/1999 -14.88 NO 0.50 NO 0.50 NO 0.50 NO 0.50 99 <br /> 11/16/1999 -16.05 NO 0.50 NO 0.50 NO 0.60 NO 0.50 180 <br /> 5/11/2000 -14.45 NO 0.50 0.71 0.75 7.4 200 <br /> 11/2/2000 -15.63 NO 0.50 NO 0.50 NO 0.50 NO 1.5 336 <br /> 5/16/2001 -15.02 0.56 NO 0.50 0.81 1.6 310 <br /> 2/5/2002 -16.37 NO 0.50 NO 0.50 NO 0.50 NO 0.50 120 <br /> 6/25/2002 -16.81 NO 0.50 NO 0.50 NO 0.50 NO 0.50 120 <br /> 12/11/2002 -18.62 NO 0.50 NO 0.50 NO 0.50 NO 0.50 120 <br /> 15M W2003 -18.12 NO 0.50 NO 0.50 NO 0.50 NO 0.50 120 - <br /> 1/13/2004 -19.41 NO 0.50 NO 0.50 NO 0.50 NO 0.50 120 <br /> 6/25/2004 -19.02 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 12/17/2004 -20.70 NO 0.50 NO 0.50 NO 0.50 NO 0.50 52 <br /> 6129/2005 -18.01 NO 0.50 NO 0.50 NO 0.50 1.3 180 <br /> 30•`) 12/14/2005 -19.20 ND 0.50 NO 0.50 NO 0.50 ND 0.50 ND 50 <br /> MW-4 81211991 -37.87 8.0 NO 0.50 NO 0.50 NO 0.50 520 ND-50 5.1 <br /> 4/16/1993 -37.04 NO 1.0 2.1 NO 1.0 NO 1.0 82 NO 50 NO 3 <br /> 6/4/1993 -36.44 3.0 NO 1.0 NO 1.0 NO 1.0 96 NO 50 8.0 <br /> 8/13/1993 -36.45 NO 1.0 NO 1.0 NO 1.0 NO 1.0 37J <br /> 10/711993 -36.95 NO 0.50 NO 0.50 NO 0.50 NO 0.50 140 <br /> 7/25/1995 -28.88 NO 5.0 NO 5.0 NO 5.0 NO 5.0 NO 500 <br /> 1213/1996 -24.31 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 - - <br /> 5/20/1997 -20.30 NO(0.50).. NO 0.50 NO 0.50 NO 2 NO 50 <br /> 12/15/1997 -21.22 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 <br /> 6/18/1998 -15.66 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 <br /> 1219/1998 -15.46 NO 0.50 NO 0.50 NO 0.50 NO 2 NO 50 <br /> 5/18/1999 -15.08 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 11/15/1999 -15.39 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 5/10/2000 -13.56 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 11/1/2000 -14.99 NO 0.50 NO 0.50 NO 0.50 NO 1.50 NO 50 <br /> 5/16/2001 -14.40 NO 0.50) NO(0.50) NO(0.50) NO(0.50) NO(50) - - <br /> 215/2002 -15.64 NO 0.50 NO 0.50 NO(0.50) NO 0.50 NO 50) - - <br /> 6/25/2002 -16.14 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 12/11/2002 -17.90 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 6/10/2003 -17.44 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 1/13/2004 -18.54 NO 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 <br /> 6/24/2004 -18.34 ND 0.50 NO 0.50 NO 0.50 NO 0.50 ND 50 <br /> 12/1612004 -19.78 NO 0.50 NO 0.50 NO(0.50 ND 0.50 NO 50 <br /> 6/29/2005 -17.07 NO 0.50) NO 0.50 ND(0.50) NO <br /> 0.50 ND 50 - <br /> 1,`5'{ 12/13/1005 1 -18.38 1 ND 0.50 NO 0.50 NO 0.50 NO 0.50 NO 50 - - <br /> 3of6 <br />