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Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 5469 <br /> 130 S Wilson Way, Stockton, CA <br /> TOC Depth t0 Calc Ethyl- <br /> GW <br /> PI GRD Benzene Toluene Xylenes MTBE DO <br /> Well No Date NP Elevation Water Elev (pg1L} (pg1L) [pgg) benzene (}1g1L} MTBEOWL) (,n pH Comments <br /> (ft MSL) (ft BGS] (it MSL) (Ng1L) ) <br /> MW 9 6/2512001 1621 3791 -2170 NS NS NS NS NS NS Not Sampled <br /> 6/28/2001 P 3805 -2184 <50 <0 5 <0 5 <0 5 <0 5 <2 0[2] <br /> 9114/2001 P 3951 -2330 <50 <0 5 <0 5 <0 5 <0 5 <2 0]2] <br /> 12/14/2001 P 4046 -2425 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] <br /> 2/21/2002 P 4064 -2443 <50 33 <0 50 <0 50 <0 50 <0 50[2] <br /> 02/21/2002 P 1621 4064 2443 <50 33 <0 50 <0 50 <0 50 <0 50[2) <br /> 04/2312002 P 4025 -24 04 59[8] <0 50 <0 50 <0 50 <0 50 <0 50[2] - <br /> 09/1912002 P 4233 -2612 <50 '050 <0 50 <0 50 <0 50 0 60[2] <br /> 1211112002 P 4308 -2687 <50 <0 50 <0 50 <0 50 <0 50 0 68[2] <br /> 01/14/2003 NP - <50 099 <0 50 <0 50 <0 50 1 7[2] <br /> 02/12/2003 NP - - <50 <0 50 <0 50 <0 50 <0 50 1 1(2] <br /> 02/26/2003 P 4308 -2687 <50 <0 50 <0 50 <0 50 <0 50 0 63[2) <br /> I` 0511912003 P 4198 -2577 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] <br /> I 09MW2003 P 4345 -2724 <50 <0 50 <0 50 <0 50 <0 50 0 7012] <br /> 1 211 0120 0 3 P 4447 2826 <50 <0 50 <0 50 <0 50 <0 50 2 0[2 25] <br /> 03/04/2004 P 4345 -2724 <50 <0 50 <0 50 <0 50 <0 50 1 0[2] <br /> 06108/2004 P 4319 2698 <50 <0 50 <0 50 <0 50 <0 50 4 2[2] <br /> 09/14/2004 1621 4467 2846 <50 <0 50 <0 50 <0 50 <0 50 15 26 - Well inaccessible <br /> 12109/2004 P 4555 -2934 <50 <0 50 <0 50 <0 50 <0 50 <0 50 2 5 73 <br /> 03/1612005 P 4465 -28 44 <50 <0 50 <050 <0 50 <0 50 0 54 64 74 <br /> 06/0872005 P 4226 -26 05 <50 <0 50 <0 50 <0 50 <0 50 <0 50 60 68 <br /> 09/08/2005 P 4340 2719 <50 <0 50 <0 50 <0 50 <0 50 <0 50 1 8 72 <br /> 1 210 812 00 5 P 4355 2734 <50 <0 50 <0 50 <0 50 <0 50 16 60 72 <br /> 02/27/2006 4208 -2587 - - - Well inaccessible <br /> h 03106/2006 P 4233 -2612 <50 <0 50 <0 50 <0 50 <0 50 84 78 70 <br /> 05/3012006 P 1 3939 -2318 1 <50 <0 50 <0 50 <0 50 <0 50 12 26 74 <br /> I <br /> 5469-Table 1 Page 9 of 11 SECOR <br />