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Table 2 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No. 548 <br /> 1612 W . Hammer Lane, Stockton , CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet ms]) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L <br /> (pg/L) (mg/L) Comments <br /> VW-4 9/28/2000 -- -- 28.39 -- -- -- -- -- -- - - - No FP, No S, No O Not <br /> scheduled for sampling <br /> 12/18/2000 -- - 26.19 -- -- -- -- -- -- -- -- - No FP, No S, No O Not <br /> scheduled for sampling <br /> 3/14/2001 -- -- 24.87 -- - - -- -- - - - - No FP, No S, No O Not <br /> scheduledforsampling .1 <br /> 6/19/2001 -- -- 26.28 - - •- - - -- - -- -- No FP, No S, No O Not - <br /> scheduled for sampling <br /> 9/11 /2001 -- -- 29. 13 - -- - - -- -- -- - - No FP, No S, No O Not <br /> scheduled for sampling <br /> 12/13/2001 NP -- 28.50 - <50 - <0.50 <0.50 <0.50 <0.50 100[2] - No FP, No S, No O <br /> 3/12/2002 NP -- 26. 10 - <50 -- <0.50 <0.50 <0.50 <0.50 32[2] - No FP, No S, No O <br /> 6/17/2002 NP -- 27.74 - 59[3] -- <0.50 <0.50 <0.50 <0.50 98[2] No FP, No S, No O <br /> 9/9/2002 NP - 30.28 -- 73 -- <0.5 <0.5 <0.5 <0.5 110 No FP, No S, No O <br /> 12/4/2002 NP -- 27.51 -- 94 - <0.5 1 .8 0.53 23 39 -- No FP, No S, No O <br /> 03/03/2003 NP -- 26.25 - <50 - <0.50 <0.50 <0.50 <0.50 0.88[2] -- <br /> 06/03/2003 NP - 26. 13 -- <50 -- <0.50 <0.50 <0.50 <0.50 0.95[2] - <br /> 09/18/2003 NP - 29.69 - <50 -- <0.50 <0.50 <0.50 <0.50 50[2] - <br /> 12/08/2003 NP -- 30.76 -- <50 -- <0.50 <0.50 <0.so <0.50 6.4[2] - <br /> 03/11/2004 NP -- 27.03 -- <50 - <0.50 <0.50 <0.50 <0.50 <0.50[2] -- <br /> VW-5D 12/30/1998 -- - - -- -- - __ __ __ __. - -- Inaccessible because of <br /> soil stockpiles <br /> 3/31 /1999 -- - 25.65 - - -- - -- -- -- -- - No FP, Yes S, Yes O Not <br /> scheduled for sampling <br /> 6/28/1999 -- - 26.74 -- -- - - __ __ _. - No FP, No S, No O Not - <br /> scheduled for sampling <br /> 9/10/1999 - - 29.00 No FP, No S, No O Not <br /> scheduled for sampling <br /> 12/13/1999 -- - 28.20 -- -- -- -- -- -- -- - - No FP, No S, No O Not <br /> scheduled for sampling <br /> 3/28/2000 - -- 24.97 -- - -- -- -_ __ _. - No FP, No S, No O Not <br /> scheduled for sampling <br /> 6/26/2000 - -- 29.81 -- - - -- -- -- -- - - No FP, No S, No 0 Not <br /> scheduled for sampling <br /> 9/28/2000 - - 28.31 -- - -- -- -- -- - -- - No FP, No S, No O Not <br /> scheduled for sampling <br /> Report Date: May 13, 2004 Page 11 of 14 <br />