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Drilling Log <br /> DD❑ GROUNDWATER Extract / Inject well VE-4 <br /> TECHNOLOGY <br /> Project TSS - StocAton owner +exaco Snvironmen1a1 Services <br /> Location 440 West Charter Wav Pro iect No 02320 2570 Date drilled 04/27/92 <br /> O <br /> .C_^' E C p <br /> _ Description <br /> —� � arc z �, m <br /> a pn E_ �� N (Color, Texture, Structure) <br /> o 0 cnmx ) Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50% <br /> 24 t0 D CL Greenish brown silty CLAY (dry, product odor) <br /> VV 5w grown medium to coarse SAND (well--graded, product odor) <br /> 26Lightgray-green silt CLAY (slight product odor) <br /> g Y 9 <br /> CL <br /> 28 ML Mottled green-brown clayey SILT with white streaks (damp, product <br /> odor) <br /> 62 E <br /> 3Q Tan to light gray CLAY (stiff, slight product odor) <br /> (Grades with green-gray mottling) <br /> - 32 - <br /> Green-gray CLAY (stiff, product odor) <br /> 34 zs F CL <br /> 36 - <br /> - (Grades with silty CLAY/clayey SILT layers) <br /> 38 = 5 Gray-green clayey micaceous SILT (wet strong product odor) <br /> 40 _ 17 H I ML Encountered water at 40 feet on 04/27/92 (1100am) <br /> End of boring at 40 5 feet Installed nested vapor extraction wells <br /> screened from 40 5 to 30 5 feet and from 25 to 15 feet <br /> - 42 - <br /> 44-1 <br /> - 46 - <br /> - 48 - <br /> _ 50 - <br /> 52 - <br /> 54 <br /> fi48505254 <br /> 56 <br />