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mob_ m m m r v m <br /> Table A-1 <br /> Historical Groundwater Analytical Results <br /> San Joaquin County Human Services Agency ` <br /> ' Groundwater <br /> Analyte Concentration IL <br /> Well No Sample Date Elevation (feet) Benzene I Toluene Eth (benzene Xylene Total TPH- TPH-e I Total Lead <br /> MW-7 5/11/2000 -1462 12 ND (0 50) ND (0 50) 32 53 -- -- <br /> 11/2/2000 -1589 068 ND (0 50) ND (0 50) ND (1 50) 189 -- -- <br /> 5/16/2001 -1524 13 <br /> ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 2/5/2002 -1666 28 ND (0 50) ND (0 50) ND (0 50) NO (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 -1856 13 12 1 0 31 82 <br /> 1/13/2004— -1976 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 6/24/2004 -1956 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 -1836 ND 0 50 ND 0 50 ND 0 50 ND 0 50 ND (50) -- <br /> MW-8 8/5/1991 -3817 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (20) 74 68 <br /> 4/15/1993 -3811 ND (1 0) ND (1 0) ND (1 0) ND (1 0) 2,300 ND (48) ND (3) <br /> 6/4/1993 -3757 ND (1 0) ND (1 0) ND (1 0) ND (1 0) 2,200 56 29 <br /> 8/13/1993 -3772 ND (1-0) ND (1 0) ND (1 0) ND (1 0) 1,700 -- -- <br /> 10/7/1993 -3817 ND (0 50) ND (0 50) ND (0 50) ND (0 50) 3,500 -- <br /> 7/25/1995 -3025 059 ND (0 50) ND (0 50) ND (0 50) 820 -- -- <br /> 12/3/1996 -2535 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) 05 ND (2 0) 920 -- -_ <br /> 12/16/1997 -2217 06 ND 0 50 ND 0 50 ND 0 50 600 -- -- <br /> MW-9 8/30/1996 -2555 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) -- -- <br /> 12/3/1996 -2521 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) -- -- <br /> 2/24/1997 -21 95 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) -- -- <br /> 5/20/1997 -21 13 ND TO-5—0) ND (0 50) 06 ND (2 0) ND (50) -- <br /> 9/19/1997 -2186 ND (0 50) ND (0 50) ND(0 50) ND (2 0) ND (50) -- -- <br /> 12/15/1997 -2211 ND (0 50) ND (0 50) ND(0 50) ND (2 0) ND (50) -- -- <br /> 3/17/1998-- -1854 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) -- -- <br /> 6/17/1998 -1596 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) -- -- <br /> 9/17/1998 -1648 ND (0 50) ND (0 50) ND (0 50) ND (2 0) ND (50) <br /> 12/10/1998 -1621 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 3/22/1999 -1514 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 5/18/1999 -1473 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 8/10/1999 -1520 ND (0 50) ND (0 50) ND(0 50) ND (0 50) ND (50) -- -- <br /> 11/15/1999 -1597 ND 0 50 ND 0 50 ND 0 50 ND 0 50) ND 50 -- -- <br /> 6of7 <br />