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P2of3 •- <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#595 <br /> 6100 N Highway 99,Stockton,CA <br /> Well Depth Groundwater Groundwater Ethyl- Xylenes MtBE MtBE <br /> Well Date Elevation to Water Elevation Elevation TPHg Benzene Toluene benzene (total) (EPA 8020) (EPA 8260) DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg1L) <br /> MW-4 3151101 P 5917 -2540 -058 5,250 738 <20 0 335 <20 0 1,870 1,760 42 <br /> (cont) 5/8101 P 5184 -2607 -067 2,890 875 <20 0 344 <20 0 2,350 2,140 050 <br /> 811/01 P 6183 -2806 -199 750 19 <2 5 66 <2 5 640 1,400 000 <br /> 10/23/01 - - - ------------- ------- -Dry well------------------------------------- -- <br /> 2/1/02 P 6158 -2781 -- <500 <5 0 <5 0 <5 0 <5 0 770 690 028 <br /> 4/11102 P 6214 -2837 -056 280' 17 <0 50 <0 50 <0 50 54 670 071 <br /> 7116,17102 P 6261 -2874 -037 Insufficient Amount of Water to Sample Well 22 <br /> MW-5 811/01 P 3225 60 52 -2827 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 26 3 51 <br /> 10/23/01 P 61 86 -2961 -134 <50 <0 50 <0 50 <0 50 <0 50 <25 <1 0 098 <br /> 211102 P 6093 -2868 093 <50 <0 50 <0 50 <0 50 <0 50 <25 <0 50 089 <br /> 4111/02 P - -- -- ------------------------------- -Not Accessible <br /> 7/16102 P 6228 -3003 - <50 <0 50 <0 s0 <0 50 <0 50 <2 5 12 32 <br /> MW-6 8/1/01 P 3020 5860 -2840 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <2 0 3 64 <br /> 10/23/01 P 59 77 -2957 -1 17 <50 <0 50 <0 50 <0 50 <0 50 <2 5 <1 0 162 <br /> 211102 P 5838 -2818 1 39 <50 <0 50 <0 50 <0 50 <0 50 <25 <0 50 094 <br /> 4111/02 P 5844 -2824 -006 <50 <0 50 0 65 <0 50 <0 50 <2 5 <0 50 259 <br /> 7116102 P 50.23 -3003 -179 <50 0 87 30 <0 50 is 46 is - <br /> MW-7 8/1/01 P 3252 6057 -2805 -- <50 <0 50 <0 50 <0 50 <0 50 61 94 107 <br /> 10/23/01 P 6194 -2942 -137 <50 <0 50 <0 50 <0 50 <0 50 110 100 023 <br /> 2/1/02 P 6104 -2852 090 <50 <0 50 <0 50 <0 50 <0 50 100 85 016 <br /> 4/11/02 P 6087 -2835 017 <50 <0 50 13 <0 50 069 58 56 0 92 <br /> 7116,17102 P 6242 -2990 -1.55 57• <0.50 18 <0 50 19 96 87 3 0 <br /> MW-8 7116102 P 3310 63.27 -3017 - <50 <0 50 0 81 <0 50 <0.50 18 15 - <br /> MW-9 7/16102 P 3372 6356 -29 83 - <50 <0 50 <0.50 <0 50 <0 50 <2 5 0 93 34 <br /> MW-10 7/16102 P 3127 6116 -2989 - <50 <0 50 <0.50 <0 50 <0 50 <2 5 <0 50 28 <br /> DMW-1 7116,17/02 P 3430 6443 -3013 - <50 <0 50 26 051 28 38 23 27 <br /> DMW-2 7116,17/02 P 3362 7315 -3953 - <50 <0 50 22 <0 50 2 6 17 12 25 <br /> Projects\ARCO\595\Reports\Tables\gwtables595 <br />