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HORIZON ENVIRONMENTAL. INC. <br />4970 Windplay Drive, Suite 5 Monitoring Well MWA 3 <br />EI 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: 7/3/12 Site: Ultramar Site 13792 <br />Drilling Method: 10" Hollow Stem Auger Location: Stockton._CA <br />Sampling Method: Split-Spoon Geologist: Brandon Schlegel <br />E <br />2 <br />v <br />>CnSoil <br />C <br />n <br />Description/ <br />Well <br />a� <br />o L <br />m <br />S <br />Gly <br />F = <br />Comments <br />Construction <br />aCU <br />E <br />m <br />– <br />Diagram <br />U <br />a <br />a <br />30 <br />neat cement <br />31 <br />32 <br />bentonite <br />33 <br />M <br />1034 <br />35 <br />c; <br />15 <br />18 <br />18 <br />0 <br />35 <br />m <br />21 <br />36 <br />SILTY CLAY (CL): brown, dry, hard, no odor #3 sand <br />37 <br />----------.....__._------_......--------- <br />— <br />38 <br />— <br />40 <br />0 <br />co <br />12 <br />15 <br />18 <br />13 <br />12 <br />39 <br />40 <br />SAND SW fine o coarse-grained sand, dark brown, wet, <br />= ( )' tg <br />—_ <br />20 <br />medium dense, no odor <br />— <br />_ <br />Co <br />41 <br />— <br />42 <br />43 <br />— <br />44 <br />4" diameter PVC <br />—_ <br />45-1 <br />M <br />7 <br />20 <br />18 <br />0 <br />45 <br />0.020-inch <br />slotted screen <br />— <br />m <br />21 <br />46 <br />— <br />47 <br />— <br />48 <br />LO <br />10 <br />49 <br />SAND (SP): medium to coarse-grained sand, dark brown, wet, <br />50 <br />v, <br />12 <br />18 <br />18 <br />43 <br />50 <br />dense, slight hydrocarbon odor <br />—_ <br />m <br />18 <br />51 <br />SANDY CLAY (CL): gray, wet, hard, slight hydrocarbon odor <br />52 <br />53 <br />-------------------------------- <br />54 <br />— <br />55 <br />Ur, <br />� <br />12 <br />13 <br />18 <br />16 <br />9 <br />55 <br />SAND (SP): medium to coarse-grained sand, trace clay, dark <br />— <br />— <br />m <br />20 <br />56 <br />brown, wet, dense, slight hydrocarbon odor <br />— <br />57 <br />58 <br />— <br />C) <br />cco 4 <br />10 <br />20 <br />18 <br />17 <br />3 <br />59 <br />— <br />— <br />SILTY SAND (SM): trace clay, dark brown, wet <br />6 <br />ao <br />25 <br />60 <br />— <br />— <br />Total Depth = 61 feet bs <br />MW -13: Page - of 2 <br />