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Table 4 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Station(1548 <br /> 1612 West Hammer Lane <br /> Stockton,California <br /> Calc. <br /> TOC Depth to GW TOTAL <br /> P/ Elevation Water Elev. TPH9 BENZENE TOLUENE ETHYLSENZENE XYLENES MTBE DO <br /> Well No. Semolina Date NP (ft MSL[ (ft BGS) (ft MSL) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (mg1L) Comments <br /> VW4 9/29/1998 NP 29.35 I 328 1.71 1 <0.5 1.1 6.12 2,560 No FP,No S,Yes O,[42] _ <br /> VW-4 1230/1998 NP 27.20 97.2 50.5 0.562 <D.5 0.746 2,240 No FP,No S,Yes O 42 <br /> VW-4 3/3111999 25.81 No FP,No S.No O Not scheduled for sampling <br /> VW-4 6/28/1999 26.94 No FPJ No S.No O Not scheduled for sampling <br /> VW4 9/10/1999 29.00 No FP,N-S No O Nat scheduled for sampling, <br /> + VW4 12113/1999 28.12 No FP,N:) .,No O Not scheduled for sam lin <br /> VW-4 3/28/2000 I 24.89 _ No FP,Na S,No Q Not scheduled for sampling <br /> a�. VW-4 6/26/2000 29.88 No FP,No S,No O Not scheduled for sampling <br /> VW4 1 9!2812000 1 28.39 No FP,No S,No O Not scheduled for sampling <br /> VW-4 1 1211812000 26.19 No FP No S No O Not scheduled for sam lin <br /> VW-4 3114/2001 24.87 I No.FP No S.No O Not scheduled for samplinn� <br /> VW4 6/19/2001 26.28 No FP,No S,No O Not scheduled for sampling <br /> VW4 911112001 29.13 No FP No S No O Not scheduled for sampling <br /> < <0.50 <0.50 50.50 <0.50 10 2 No FP,No S,No O <br /> VW4 12113!2001 NP 28.50 50 0[ <br /> VW4 311212002 NP 26.10 <50 <0.50 <0.50 <0.50 <0.50 I 3212 No FP No S.No 0 <br /> VW-4 6/1712002 NP 27,74 59}3] <0.50 <0.50 <0.50 <0.50 98[21 Na FP No S No O <br /> VW4 9/9/2002 NP 30.28 73 <0.5 <0.5 <0.5 <0.5 110 No FP,No S.No O <br /> VW4 121412002 NP 27.51 94 <0.5 1.8 0.53 23 39 No FP,No S,No O <br /> VW4 3/312003 NP 26.25 <50 <0.5 <0.5 <0.5 <0.5 0.88[2} <br /> VW4 613!2003 NP 26.13 <60 <0.5 <0.5 <0.5 <br /> <D.5 0.95[2] <br /> VW-4 911812003 N 29.69 <50 <0.5 <0.5 <0.5 <0.5 60[21 <br /> VW4 121812003 NP30.76 <50 <0.5 <0.5 <0.5 <0.5 6.4[2] <br /> VW4 311112004 NP 12.33 27.03 -14.70 <50 <0.5 <0.5 50.5 <0.5 <0.5 2] <br /> VW4 611112004 NP 12.33 31.03 -18.70 <50 <0.5 <0.5 <0.5 <0.5 1.1121 1.6 <br /> VW4 8/312004 P 12-33 32.45 -20.12 62 <0.5 <0.5 <0.5 <0.5 55[2] 1.1 <br /> VW-4 12/22/2004 P 12.33 31.74 -19.41 93 <0.5 <0.5 <0.5 <0.5 28(21 5.1 <br /> VW4 3!3012005 P 12.33 29.23 -16.90 <50 <0.5 <0.5 <0.5 <0.5 17]2] 2.04 Water Level data collected 3129105 <br /> VW4 6/16/2005 P 12.33 28.67 -16.34 <50 <0.5 <0.5 <0.5 <0.5 21121 1.23 <br /> VW-4 919/2005 P 12.33 30.85 -18.52 <50 <0.5 <0.5 <0.5 <0.5 18 2� 0.87 <br /> VW4 12/7/2005 P 12.33 30.57 -18.24 <50 <0.5 <0.5 <0.5 <0.5 14 2 <br /> VW4 312212006 P 12.33 28.16 -15-83 <50 <0.5 <0.5 50.5 50.5 t4[2} 2.94 <br /> I:SP-ARCO104 BP Valley PprtfolioL5481Ta61es106Q1L548 Table 1-2-3-4 Page 10 of 14 5/3112006 <br />