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s • � <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 2093 <br /> 3425 Tracy Blvd, Tracy, CA <br /> TQC Depth to Water Level Ethyl- Total <br /> Weil Date PI Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pglL) (pg/L) (pg1L) (pgll-) (pg1L) (pg/L) (pg1L) (mg/L) Comments <br /> ATR-9 09120/2004 -- 2051 11 67 884 -- - -- -- -- -- -- -- Not Sampled <br /> ATR-10 10/1611990 - 4807 -- - <50 - <0 5 <0 5 <0 5 <0 5 - -- <br /> 10/19/1990 -- 4807 1020 3787 -- - -- - - -- <br /> 1/10/1991 - 4807 1007 3800 <50 -- <05 <05 <05 <0 5 - -- <br /> 4/10/1991 -- 4807 1000 3807 <50 -- <05 <0 5 <0 5 <0 5 -- - <br /> 7/12/1991 - 4807 1021 3786 <50 - <05 <0 5 <0 5 <0 5 - - <br /> 9/24/1991 - 48 07 1032 3775 -- -- - -- - - I - - <br /> 9/2511991 4807 - - <50 - <05 <05 <0 5 <05 -- -- <br /> 1/23/1992 - 4807 1000 3807 <50 - <05 <05 <0 5 <0 5 - -- <br /> 4/20/1992 -- 4807 1001 3806 - -- - - - - <br /> 4/21/1992 - 4807 -- - <50 <0 5 <0 5 <0 5 <0 5 - -- <br /> 7/8/1992 - 4807 1017 3790 <50 - <0 5 <0 5 <0 5 <0 5 -- — <br /> 10/7/1992 - 4807 1023 3784 <50 <05 <05 <0 5 <0 5 - -- <br /> 1/1811993 -- 4807 961 3846 <50 -- <0 5 <0 5 <0 5 <0 5 -- - <br /> 4/14/1993 -- 4807 994 3813 <50 -- <05 <0 5 <0 5 <0 5 - - <br /> 8/30/1993 - 48 07 1023 3784 1 <50 -- <0 5 <0 5 <0 5 <0 5 - - <br /> 10/27/1993 - 4807 1024 3783 <50 <0 5 <05 <0 5 <0 5 " — <br /> 2/18/1994 -- 4807 1002 3805 <10 - <03 04 <0 3 <05 -- -- <br /> 5/20/1994 - 4807 1009 3798 <10 <0 3 <03 <0 3 <0 5 -- -- <br /> 10/7/1994 - 4807 1024 37 83 <50 - <0 5 <0 5 <0 5 <0 5 -- -- <br /> 12/16/1994 - 4807 997 3810 <50 -- <05 <0 5 <0 5 <0 5 -- - <br /> 2/28/1995 - 4807 1015 3792 <50 - <05 <0 5 <0 5 <0 5 -- <br /> 4/25/1995 -- 4807 1027 3780 <50 - <0 5 <0 5 <05 <0 5 - -- <br /> 7/27/1995 -- 4807 1038 3769 - - - - -- - - -- <br /> 10/20995 -- 4807 1041 3766 - - -- -- -- - - '- <br /> 2/12/1996 - 4807 1001 3806 <50 - <0 5 <05 <0 5 <05 - - <br /> 4/18/1996 -- 4807 1023 3784 -- -- - - -- - -- <br /> 7/1811996 -- 4807 1040 3767 <50 -- <05 <0 5 <0 5 <0 5 <5 <br /> 11/15/1996 -- 4807 1093 3714 -- -- -- - -- -- -- <br /> 3/14/1997 - 4807 -- - -- - - - - -- <br /> 6/4/1997 -- 48 07 - <br /> 8/11/1997 NP 4807 1056 3751 <50 - <0 5 <0 5 <0 5 <0 5 <2 5 -- <br /> 11/17/1997 -- 48 07 1047 3760 - -- - - -- - - - <br /> Report Date October 14,2004 Page 19 of 27 <br />