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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 Toluene I Eth (benzene X lene Total TPH- TPH-e Total Lead <br /> MW-2A 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 (5 0) 93 94 2,000 -- -- <br /> 3/22/2005 -1898 64 47 80 26 2,100 -- <br /> 6/3012005 -17 90 53 40 54 36 2,400 <br /> MW-3'2 l 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 -25Y9 ND (0 50) ND (0 50) ND (0 50) ND (2) ND (50) <br /> 5/20/1997 -21 22 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 -16 43 1 1 ND (0 50) ND (0 50) ND (0 50) 75 <br /> 5/18/1999 -14 88 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 -1563 ND (0 50) ND (0 50) ND (0 50) ND (1 5} <br /> 5/16/2001 -1502 0 56 ND (0 50) 0 81 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 -18 62 ND f 51—) ND (0 50) ND (0 50) ND (0 50) 120 <br /> 6/10/2003 -1612 ND (0 50) ND (0 50) ND (0 50) ND (0 50) 120 <br /> 1/13/2004 -1941 ND (0 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 -20 70 ND (0 50) ND (0 50) ND (0 50) ND (0 50) 52 <br /> 612912005 .1801 ND 0 50 ND 0 50 ND 0 50 13 180 <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 /> 8/13/1993 -3645 ND (1 0) ND (1 0) ND (1 0) ND (1 0) 37J -- -- <br /> 10/711993 -3695 ND (0 50) ND (0 50) ND (0 50) ND (0 50) 140 <br /> 7/25/1995 -2888 ND (5 0) ND (5 0) ND (5 0) ND (5 0) ND (500) <br /> 12/311996 -24 31 ND (0 50) ND (0 50) ND (0 50) ND (2) ND (50) <br /> 5/20/1997 -2030 ND (0 50) ND (0 50) ND (0 50) ND (2) ND (50) <br /> 12/15/1997 -21 22 ND 0 50) ND 0 50 ND 0 50 ND 2 ND 50 -- __ <br /> 3of7 <br />