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= mom = = m m m m o m m m s m m m <br /> Table A-1 <br /> Historical Groundwater Analytical Results <br /> San Joaquin County Human Services Agency <br /> Groundwater Analyte Concentration IL <br /> Well No Sample Date Elevation feet Benzene Toluene Eth (benzene Xylene Total TPH- TPH-e Total Lead <br /> MW-2A 10/7/2003 -1919 26 48 27 27 1,700 -- -- <br /> 1/13/2004 -1923 48 65 130 27 2,600 -- -- <br /> 3/31/2004 -1872 110 9 5 130 52 1,800 -- -- <br /> 6/25/2004 -1911 45 80 23 ND (5 0) 1,300 -- -- <br /> 9/15/2004 -2010 13 23 49 48 1,400 -- -- <br /> 12/17/2004 -2064 78 ND (0 50) 93 94 2,000 -- <br /> 3/22/2005 -1898 64 47 80 26 2,100 -- -- <br /> 6/30/2005 -1790 53 40 54 36 2,400 -- -- <br /> 9/29/2005 -1876 58 38 67 78 2,200 -- -- <br /> 12/14/2005 -1911 110 45 160 11 4,300 -- -- <br /> MW-3 12/30/1988 NM 28290 42 073 26 ND 200 ND 500 1,300 <br /> MW-3A 7/25/1995 -3002 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND(50) -- -- <br /> 12/3/1996 -2529 ND (0 50) ND(0 50) ND (0 50) ND (2) ND (50) -- -- <br /> 5/20/1997 -2122 ND (0 50) ND(0 50) ND (0 50) ND (2) 150 -- -- <br /> 12/16/1997 -2218 ND(0 50) ND (0 50) ND (0 50) ND (2) ND (50) -- -- <br /> 6/18/1998— -1724 20 ND (0 50) ND (0 50) ND (2) 240 -- -- <br /> 12/10/1998 -1643 1 1 ND (0 50) ND (0 50) ND(0 50) 75 -- -- <br /> 5/18/1999 -1488 ND (0 50) ND (0 50) ND (0 50) ND (0 50) 99 -- -- <br /> 11/16/1999 -1605 ND (0 50) ND (0 50) ND(0 50) ND (0 50) 180 -- -- <br /> 5/11/2000 -1445 ND (0 50) 071 075 74 200 -- -- <br /> 11/2/2000 -15 63 ND (0 50) ND (0 50) ND (0 50) ND (1 5) 336 -- -- <br /> 5/16/2001 -1502 056 ND(0 50) 081 1 6 310 -- -- <br /> 2/5/2002 -1637 ND (0 50) ND(0 50) ND (0 50) ND (0 50) 120 -- -- <br /> 6/25/2002 -1681 ND (0 50) ND(0 50) ND (0 50) ND (0 50) 120 -- -- <br /> 12/11/2002 -1862 ND (0 50) ND(0 50) ND (0 50) ND (0 50) 120 -- -- <br /> 6/10/2003 -1812 ND (-0 50) ND CO 50} ND (0 50) ND(0 50) 120 -- -- <br /> 1/13/2004 -1941 ND( 50) ND (0 50) ND (0 50) ND(0 50) 120 -- -- <br /> 6/25/2004 -1902 ND(0 50) ND (0 50) ND(0 50) ND(0 50) ND (50) -- -- <br /> 12/17/2004 -2070 ND (0 50) ND (0 50) ND(0 50) ND(0 50) 52 -- -- <br /> 6/29/2005 -1801 ND (0 50) ND (0 50) ND(0 50) 1 3 180 -- -- <br /> 12/14/2005 -1920 ND 0 50 ND 0 50 ND 0 50 ND 0 50 ND 50 -- -- <br /> MW-4 8/2/1991 -3787 80 ND (0 50) ND (0 50) ND(0 50) 520 ND(50) 51 <br /> 4/16/1993 -3704 ND(1 0) 21 ND (1 0) ND (1 0) 82 ND (50) ND (3) <br /> 6/4/1993 -3644 30 ND 1 0 ND 1 0 ND (1 0) 96 ND 50 80 <br /> 3of8 <br />