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i <br /> *go 9 of 16 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd.,Tracy,CA <br /> Well Depth Groundwater Groundwater Product Ethyl- Xylenes <br /> Well Hate Elevation Io Water Elevation E3evation Thickness TPHg Benzene Totvene benzene (total) M18E DO <br /> Number Sampled ft,MSL ( , ) ( , L) Change(ft) (ft) (ug/L) (ug/L <br /> } 1TOC1tMSCh.. .,._ ) (u92) (u9IL) (u9/L) (ug1L) (mg/L) <br /> ATR-7 8/31/1993 12.24 37.41 - <50 <0.5 <0.5 <0.5 <0.5 - { <br /> (cont.) 10/27/1993 12.23 37.42 0.01 - <50 <0.5 <0.5 <0.5 1,3 - <br /> 2/18/1994 11.93 37.72 0.30 - <10 <0.3 <0.3 <0,3 <0.5 - <br />! 5/20/1994 12.00 37.65 -0V <10 <Q 3 <0.3 <0.3 <0,5 <br /> 10/7/1994 12.23 37.42 -0,23 - <50 <0.5 <0.5 <0.5 <0.5 <br /> 12/16/1994 11.94 37.71 0.29 <50 <0,5 <0.5 <0.5 <0.5 <br /> 2/28/1995 12.00 37.65 -0.06 <50 <0.5 <0,5 <0.5 <0,5 <br /> 4/25/1995 12,41 37.24 -0.41 <50 <0.5 <0.5 <0.5 <0.5 <br /> 7/27/1995 12.61 37.04 -0.20 <50 <0.5 <0.5 <0.5 <0.5 <br /> 10/26/1995 12.67 36.98 -0.06 <50 <0.5 <0.5 <0.5 <0,5 - <br /> 2/12/1996 11.95 37.70 0.72 <50 <0.5 <0.5 <0.5 <0.5 <br /> 4/18/1996 12.35 37.30 -0.40 <50 <0,5 <0.5 <0-5 <0.5 - <br /> 7/18/1996 12.45 37.20 -0.10 <50 <0.5 <0.5 <0.5 <0.5 28 <br /> 11/15/19W 13.11 36.54 -0.66 <50 <0.5 <0.5 <0.5 <0.5 120 <br /> 3/14/1997 13.20 36.45 -0.09 - <50 <0.5 <C.5 <0.5 <0.5 6.3 0.10 <br /> 6/4/1997 NP 12.44 37.21 0.76 - <50 <0.5 <0.5 <0.5 <0.5 <2.5 0.13 <br /> 8/11/1997 NP 12.72 36.93 -0.28 - <50 <0.5 <0.5 <0.5 <0.5 22 - <br /> 11/17/1997 NP 12.66 36.99 0.06 <50 <0.5 <0.5 <0,5 <0.5 3.5 <br /> 3/30/1998 NP 12.11 37.54 0.55 - <50 <0.5 <0.5 <0.5 <0.5 <5.0 1.3 <br /> 6/25/1998 NP 12.46 37.19 -0.35 <50 <0.5 <0.5 <0.5 <0.5 <5.0 2.5 <br /> 9/11/1998 NP 12.51 37.14 -0.05 <50 <0.5 <0.5 <0.5 <0.5 <2.5 1.14 <br /> 12/15/1998 NP 12,41 37.24 0.10 <50 <0.5 <05 <0.5 <0.5 <5.0 2.20 <br /> 3/17/1999 NP 12.23 37.42 0.18 - <50 <0.5 <0.5 <0.5 <0.5 <5,0 2.00 <br /> 5/1411999 NP 12.41 37.24 -0.18 - <50 <0.5 <0.5 <0.5 <0.5 <5,0 1.90 <br /> 9/16/1999 NP 12.58 37.07 -0,17 - <50 <0.5 <0.5 <0.5 <0.5 <5.0 3.60 <br /> 12/22/1999 NP 12.52 37,13 0.06 -- <50 <0,5 <0.5 <0.5 <0.5 <2.50 4.20 <br /> 2/29/2000 NP 12.06 37,59 0.46 -- <50 <0.5 <0.5 <0.5 <0.5 <2.50 4.70 <br /> 6/7/2000 NP 12.55 37.10 -0.49 <50 <0.5 <0.5 <0.5 <0.5 572 <br /> 9/25/2000 NP 12.71 36.94 -0.16 -- <50 <0.5 <0.5 <0.5 <0.5 <2.50 0.50 <br /> 1 2129/20 0 0 P 12.43 37.22 0.28 - <50.0 <0.500 <0.500 <0.500 0.656 17.5' 6.7 <br /> 3/27/2001 P 12.33 37,32 0.10 - <50.0 <0.500 <0.500 <0.500 <0.500 305' 3.8 <br /> 6/20/2001 P 12.47 37.18 -0.14 - <50 <0.50 <0.50 <0.50 <0,50 580' <br /> 9/12/2001 P 12.50 37.15 -0.03 - <50 <0.50 <0,50 <0.50 <0.50 140 1.2 <br /> 12/19/2001 P 12.35 37.30 0,15 - <50 <0.50 <0.50 <0.50 <0.50 7.2' 1.01 <br /> 3/14/2042 P 12,42 37.23 0.07 - <50 <0.50 <0.50 <0.50 <0.50 14' 0.66 <br /> 6/28/2002 P 12.48 37.17 -0.06 <50 <0.5 <0.5 <0.5 <0.5 0,97' 3.6 <br /> 9/11/2002 P 12.44 37.21 0.04 - <50 <0,5 <0.5 <0.5 <0.5 1.1' 2.9 <br /> 12/17/2002 P 11.96 37.69 0.48 <50 <0.5 <0.5 <0.5 <0.5 <0.5' 3.9 <br /> ATR-8 8/25/1991 45,98 -- -- - 2,700 110 <0.5 130 98 -- - <br /> 9/25/1991 8.85 37.13 1,400 95 <0.5 51 97 - <br /> 1/23/1992 8.29 37.69 0.56 - <50 2.5 <0.5 <0.5 <0.5 <br /> 4/20/1992 8.11 37.87 0.18 -- - - -- <br /> 4/21/1992 <br /> -4/21/1992 - - 140 14 0,9 14 9.3 - <br /> 7/8/1992 8.48 37.50 - - 67 4.0 <0.5 9.2 0.8 - <br /> 10/7/1992 8.69 37.29 -0.21 - - <br /> 10/8!1892 - -- - 140 7,s 3.2 11 8.8 - <br /> 1/18/1993 7.09 38.89 - - - <br /> K:Us SP AROMD20B110uarw*&OTR ozTable 1�2,,1rir <br />