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Table A-1 <br /> Historical Groundwater Analytical Results <br /> San jgaguin County Human s—Agency <br /> Groundwater <br /> Analyte Concentration IL <br /> Well No Sample Date Elevation feet Benzene Toluene Eth (benzene Xylene Total TPH- TPH-e Total Lead <br /> MW-9 3/2/2000 -1519 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 5/10/2000 -1428 ND (0 50) ND (0 50) ND (0 50) ND (1 50) ND (50) -- <br /> 8/10/2000 -1483 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- <br /> 11/1/2000 -1556 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 2/27/2001 -15 24 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 5/16/2001 -1499 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 2/5/2002 -15 84 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 4/17/2002 -1633 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -_ <br /> 6/25/2002 -1674 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 9/17/2002 -17 93 ND (0 50) ND (0 50) ND (0 50) 074 <br /> 12/10/2002 -18 61 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 6/10/2003 -1811 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 10/6/2003 -1929 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 1/13/2004 -1866 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- .- <br /> 3/31/2004 -1864 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 6/24/2004 -1914 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- -- <br /> 9/15/2004 -2010 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 12/16/2004 -2066 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 3/22/2005 -1901 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50} <br /> 6/29/2005 -1790 ND 0 50 ND 0 50 ND 0 50 ND 0 50 ND 50 -- _. <br /> Table A-1 Notes <br /> J = Detected below the detection limit <br /> µglL = micrograms per liter <br /> ND (0 50) =Analyte not detected Detection limit indicated in parentheses <br /> NM = Not measured <br /> TPM-e =Total petroleum hydrocarbons extractable <br /> TPH-g =Total petroleum hydrocarbons as gasoline <br /> riot analyzed for constituent <br /> ' =Top of casing not surveyed to established benchmark <br /> z = Well abandoned <br /> 3 = Bottom 8 feet of well has collapsed <br /> 7of7 <br />