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n(� Drilling Log <br /> GROUNDWATER Monitoring — <br /> �LJ❑ TECHNOLOGY Well MW ii <br /> Project Chevron/E Hardino Owner Chevron USA Products Co <br /> Location Stockton Ca Project No 02320-2672 Date drilled 05111/92 <br /> 1- p1->. h <br /> L.-. O r-, C U h <br /> oQ oo �, Description <br /> ao <br /> n" E a° E a �� N (Calor, Texture, Structure) <br /> Lj EDX j Trace < 10%, Little 10% to 20%. Some 20% to 35%, And 35% to 50% <br /> - 561 s E Dark brown sandy clayey SILT (continued) <br /> 56 <br /> (grades brown clayey SILT) <br /> 60 ML <br /> 0 !s <br /> L 1e Encountered groundwater at 610 feet on 05/11/92 <br /> 18 <br /> 62 <br /> Brown silty CLAY <br /> 64 <br /> = 0 is <br /> �6 M 27 <br /> — 32 <br /> 68 — <br /> CL <br /> - 70 - = 0 is <br /> N 38 <br /> 25 <br /> - 72 — . = (grades with minor fine sand) <br /> 74 <br /> 76 - - --�_� <br /> End of boring at 75 0 feet Installed groundwater monitoring well <br /> 7$ <br /> 80 <br /> 62 <br /> • 84 <br /> 86 <br /> 88 <br /> 07/20/1392 1;l Hog—mar 92 <br /> _Page 3 of 3 __ <br />