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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Geologic <br />0 ~~ ~c~aa\ .. ~\.!.\ ..%b Log <br />Bnvn, silt 8 v. fine sand <br />a .o ... <br />.0 0 <br />o. ;. <br />,o.~;; p..::. ~0. <br />Brwn, clayey silt <br />50 <br />75 <br />m <br />t <br />rn <br />0 <br />100 <br />fi <br />m <br />0 <br />125 <br />Lt. brwn, silt, fine-coarse <br />gr sand & gravel <br />D 00 O <br />Ground <br />(Typically fining up ~' Q pp. p:' <br />sequences) Iillllli~lll~l{I4 <br />Santa Fe <br />Formation <br />Iil.llil.lfll,III1 <br />Lt. brwn, fine-coarse gr. <br />sand & grevel with ~' p'17p ~O: - <br />ematie cobbles <br />.o.,a .o.o.. <br />~'~o. ~: ~.Q:. ~.O... <br />.a.~ o.,~a~ O. <br />.: o. <br />0.~.~'0 .::: .d <br />150 Conglomeratic cobbles <br />(greninc/volcanic) ~lli~~liltfli.llal.l <br />v. ..~.0 <br />Bnvn, med-coarse gr. <br />175 granitic sand 8 gravel <br />TD 180.0' <br />200 ~ Note: <br />Well was drilled Oa. 1993 with a percussion <br />hammer rig advancing dual-wall drill string <br />using compressed air only. <br />E-SPEC CONSULTING CO <br />Construction Log <br />6-inch Steel <br />Protective Casing <br />3.0' <br />Concrete <br />Surface Seal <br />Threaded 4-inch <br />Sch a0 PVC <br />Blank Casing <br />9.25 Inch <br />Borehole <br />Bentonite Grout <br />137.0' <br />~ Bentonite Pellet Seal <br />141.4' .. - <br />7f 10-20 Silica <br />150.0' .-~ Sand Pack <br />10 Slot Threaded <br />PVC Screen <br />180.0' <br />Bottom Cep <br />Geologi¢ Log and <br />Construction Details <br />M~14 <br />Ref No. 11/93-102 Fic <br />