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Table 3. Analytical Results,ARCO Facility 2133, <br /> Stockton,California <br />. Monitoring well <br /> number and Concentrations m u /i <br /> date sampled Benzene Toluene Eth lbenzene Xylenes TPH-G(a) <br /> 4/19/90 -- -- -- -- -- <br /> 5/10/90 <br /> 5124/90 <br /> 6/5190 <br /> 6/18/90 <br /> 7/12/90 <br /> 8/16/90 -- -_ __ <br /> 9117190 <0 5 <0 5 <0 5 <0 5 -- <br /> 2/11/91 <0 5 <0 5 _ <0 5 <0 5 <50 <br /> 2/25/91 -- __ __ .. <br /> 4/23/91 -- __ -- -_ -- <br /> 7/16/91 <0 5 <0 5 <0 5 <0 5 <50 <br /> 10/9/91 -- -- -. -- -- <br /> 1/22/92 -- -- -- -- <br /> 4/22/92 <0 5 <0 5 <0 5 <0 5 <50 <br /> 7/29/92 <0 5 <0 5 <0 5 <0 5 <50 <br /> 10/29/92 <0 5 <0 5 <0 5 <0 5 <50 <br /> 1/27/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 4/29/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 8/5/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 11/9/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 3/21/94 <0 3 <0 3 <0 3 <0 5 <10 <br /> 6/27194 <0 3 <0 3 <0 3 <0 5 <10 <br /> 9/29/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/8/94 <0 5 <0 5 <0.5 <0.5 <50 <br /> MW-1 <br /> 11/9/93 <0 5 <0 5 <0 5 <0 5 <50 <br /> 3/21/94 <0 3 <0 3 <0 3 <0 5 <10 <br /> 6/27/94 <0 3 <0 3 <0 3 <0 5 <10 <br /> 9/29/94 <0 5 <0 5 <0 5 <0 5 <50 <br /> 12/$194 <0.5 <0 5 <0.5 <0.5 <50 <br /> MW-2 <br /> 1119/93 67 72 66 120 950 <br /> 3/21/94 100 6 2 16 83 450 <br /> 6127/94 55 13 9 6 72 390 <br /> 9/29/94(f) -- -- -- __ <br /> 12/8/94 29 27 6.2 130 580 <br /> (a)TPH-G=Total petroleum hydrocarbons as gasoline <br /> (b)Unknown hydrocarbon-most likely weathered gasoline <br /> (c)Raised reporting limit due to matrix interference <br /> (d)Raised reporting limit due to high analyte concentration requiring sample dilution <br /> (e)Xylenes were incorrectly reported in the second quarter 1994 quarterly report <br /> Data shown herein is correct <br /> (f)Well not sampled because it was covered by soil pile <br /> Note Dash indicates not measured or not analyzed <br />