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PROJECT <br />Tredrek „ <br />NUMBER <br />MAWM. <br />- CPA <br />IMMUVOMMTWA01$ <br />197-32 <br />COMPANY <br />5:r "nNITMMTNNEAUMWOUITA00 WELL CONSTRUCTION LOG <br />WELL NUMBER CH-1 <br />1 PROJECT NAME EW-4A; Extration Well Replacement DATE DRILLED August 13, 1996 <br />continued from previous page <br />o. a <br />o BLOW COUNTS RECOVERY (%/ft.) SAMPLE ID. EXTENT U.S.C.S. GRAPHIC LOG LITHOLOGIC DESCRIPTION Lu DEPTH (ft. BGS) --.- ..-. -164-_ WELL DIAGRAM <br />Lu <br />1 <br />, , <br />, <br />CH1- <br />147 <br />'7 ' <br />x_ x x 7 <br />7 -Z <br />.X -M <br />-x- <br />_iL <br />x _ <br />x — <br />CL/ML-SILTY CLAY/CLAYEY SILT, blue gray <br />SAND-blue gray, medium grained, flowing <br />— <br />-120----95 <br /> <br />- _i_ <br />— <br />-125-- <br />- <br />- <br />_ <br />— <br /> <br />_ _ <br /> <br />_ _ <br /> <br />_ _ <br />_ <br />_ <br />- <br /> <br />- — <br />-145-- <br /> <br />- — <br /> <br />- — <br />-150--- <br />_ <br />_ <br />-15E, <br />— <br />-130--105 <br />-135---110 <br />40---115 <br />— <br />100 <br />— Centralizer <br />— (127' bgs) <br />— <br />Seal <br />(Tremmied <br />Bentonite <br />Slurry) <br />-120 <br />Transition <br />Sand (0/30) <br />-125 <br />Top of Filter <br />Pack Sand <br />_ <br />1152.5' bgs) <br /> -130 <br />SP • <br />x <br />x <br />x <br />ML/SP-SILT, fine SAND and SILTY SAND, crude layers, <br />gray with brown staining <br />SAND-brown, medium grained, flowing SP <br />• <br />x <br />x <br />'x <br />*x <br />x <br />x <br />*x • <br />ML/SM-SILT and SILTY fine SAND with some clay, <br />brown <br />SP SAND-fine to medium grained, brown, flowing <br />- -- _ ML-CLAYEY SILT-light gray brown <br />SM <br />'' <br />• <br />7.,-,:,,.-,. <br />',•'••••<,. <br /> <br /> _ <br /> <br /> _ <br />SILTY SAND-medium grained, brown, flowing <br />SP-SM - SAND-becoming coarse grained, gradational <br />with unit above <br />SAND-becoming medium grained and silty <br />Continued Next Page <br />SP <br />SM <br />SM WELL LATHR 11/ PAGE 4 OF 6