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HORIZON ENVIRONMENTAL INC. <br />4970 Windplay Drive, Suite 5 Monitoring Well MW -13 <br />El Dorado Hills, California 95762 <br />(916) 939-2170 -- Fax: (916) 939-2172 <br />Drilling Company: All Well Abandonment Project No.: 1792.26 <br />Date Drilled: 7/3/2 Site: Ultramar Site 13792 <br />Drilling Method: 10" Hollow Stem Auger Location: Stockton, CA <br />Sampling Method: Split -Spoon Geologist: Brandon Schlegel <br />a <br />o <br />= <br />0 <br />E <br />�' m <br />Soil Description/ <br />Well <br />ID L <br />z <br />3 <br />6 <br />E� <br />Comments <br />Construction <br />– <br />E <br />m <br />L <br />– <br />Diagram <br />m <br />� <br />c <br />C <br />O <br />a <br />o <br />Soil <br />Hand auger to 5 feet <br />1 <br />2 <br />10 -inch diameter <br />.3 <br />bore hole — <br />u� <br />3 <br />4 <br />5 <br />`'' <br />7 <br />18 <br />13 <br />2 <br />5 <br />SANDY CLAY (CL): reddish -brown to dark brown, slightly moist, <br />°0 <br />13 <br />6 <br />very stiff, no odor, low plasticity <br />7 <br />neat cement <br />8 <br />p <br />r <br />10 <br />9 <br />10 <br />C; <br />23 <br />18 <br />18 <br />14 <br />10 <br />SANDY CLAY (CL): reddish -brown, slightly moist, very stiff, no <br />ao <br />23 <br />odor, low plasticity, decreasing clay fraction <br />11 <br />12 <br />--------------------------------- <br />13 <br />11 <br />14 <br />4" diameter <br />15'; <br />r <br />15 <br />18 <br />8 <br />20 <br />15 <br />CLAYEY SILT (ML): brown, dry, hard, no odor PVC casing <br />m <br />20 <br />16 <br />17 <br />18 <br />---------------------------•----- <br />0 <br />c� <br />15 <br />19 <br />2 <br />�2 <br />20 <br />18 <br />18 <br />1 <br />20 <br />SAND (SP): fine-grained sand, trace clay, reddish -brown, dry, <br />m <br />21 <br />21 <br />dense, no odor <br />22 <br />23 <br />LO <br />CV <br />8 <br />24 <br />25 <br />(�2 <br />12 <br />18 <br />8 <br />0 <br />25SAND <br />(SP): fine-grained sand, trace clay, reddish -brown, slightly <br />m <br />8 <br />25:S.I <br />moist, dense, no odor <br />27 <br />28 <br />-------------------------------- <br />9 <br />29 <br />21 <br />18 <br />18 <br />0 <br />3 <br />ao <br />21 <br />30LTY <br />CLAY (CL): brown, dry, hard, no odor <br />MW -13: Page I of 2 <br />