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-❑❑� - Drilling Log <br /> ❑❑❑ GROUNDWATER Monitoring Well MW-11 <br /> TECHNOLOGY <br /> Project Chevron/E. Hardino Owner Chevron U.S.A. Products Co. <br /> Location Stockton, Ca. Project No. 02320-2672 Date drilled 05/11/92 <br /> O <br /> nD_ �; on voa tc Description <br /> QUO n 0 <br /> C) 3 E a Q E I0 1pj m (Color, Texture, Structure) <br /> 0 M OT Trace < 10%. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> 56 _ s Dark brown sandy clayey SILT (continued) <br /> 58 = (grades brown clayey SILT) <br /> 60 ML <br /> = 0 s <br /> L :6 g Encountered groundwater at 6LO feet on 05/11/92. <br /> 62 = <br /> Brown silty CLAY <br /> 64 <br /> 0 15 <br /> = M 27 <br /> 66 <br /> 2 <br /> 68 <br /> CL <br /> 70 — 0 s <br /> N t6 <br /> = 25 <br /> 72 (grades with minor fine sand) <br /> 74 <br /> End of boring at 75.0 feet. Installed groundwater monitoring well. <br /> 76 - <br /> - 78 - <br /> -80 - <br /> - 82- <br /> -84 - <br /> 86J 80 <br /> 82 <br /> 84 <br /> 86 <br /> 88 <br /> 07/20/1962 fitNog-mar92 Page: 3 of 3 <br />