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mom = = = = me = M M M M M � <br /> Table A-1 <br /> Historical Groundwater Analytical Results <br /> San Joaquin County Human Services Agency <br /> Groundwater Ana!Xte Concentration IL <br /> Well No r Sample Date Elevation feet Benzene Toluene Eth !benzene Xylene Total TPH- TPH-e Total Lead <br /> MW-9 _ 8/10/1999 -1620 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND 50) <br /> 1/1 511 999_ -15 97 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 31212000 -15 19 ND (0 50) _ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 5/10/2000 -11-28 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 (Q 50) ND (0 50) ND (50) <br /> 111112000 --1556— ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 2127!2001 _ <br /> -1524 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 -1584 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 /> 6125/2002 -1674 _ ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 9/17/2002 -1793 ND (0 50) ND (0 50) ND (0 50) Q 74 ND (5Q) ._ <br /> 12/10/2002 -'S 61 ND (I OU_5 0) ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> _ 611012_003 _-'811 _ ND (0_5O) ND (0 50) ND (0 50) ND (0 50) ND (50) _ <br /> 10/6/2003 -'G 29 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- _ <br /> 111312004_ -'8 66 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- - <br /> 3/31/2004 _ -'8 64 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- <br /> 6/24/2004 - 9 14 ND (Q 50) KID—(0 —50) ND (0 50) ND (0 50) ND (50) -- - <br /> 9/15/2004 w -20 10 ND (0 50) ' ND (0 50) ND (0 50) ND (0 50) ND ( 0 <br /> 12/16/2004 -20 66 ND (0 50) ND (0 50) ND (0 50) ND (0 50) ND (50) -- <br /> 3/22/2005 _ -1G 01 ND {0 50} , ND (0 50) ND (0 50) ND (0 50) ND (50) <br /> 6/29/2005 -1790-1—ND (050) ND (0 50) ND (0 50) ND (0 50) ND (50) -_ <br /> 9/29/2005 -1876 1 ND 0 50 ND 0 50 ND 0 54 ND 0 50 ND 50 - <br /> Table A-1 Notes <br /> i <br /> J = Detected below the detection limit _ <br /> gglt_ = micrograms per liter _ <br /> ND (0 50)=Analyte not detected Detection limit indicated in parentheses <br /> NM = Not measured <br /> TPH-e =Total petroleum hy_drocartons extractable <br /> TPM-g =Total petroleum hydrocartons as gasoline - <br /> -- = Sample not analyzed for constituent <br /> = <br /> Top of casing not surveyed to established benchmark <br /> 7of8 <br />