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<br />
<br />'7_188'7(6.'74) .,
<br />BUJ'o.IoI'ot R..cI'n~tion
<br />
<br />GEOLOGIC LOG OF DRILL HOLE
<br />
<br />- - ---------
<br />
<br />1 3
<br />SHEET. . . . . . . OF. . . . . . .
<br />
<br />FEATURE.. .S.a,1Y,a8~. ~~,1;l~....................... PROJECT. .SLV .-;.Closed .Basin................... STATE, .Colorado.,."."",
<br />SW-4 lOCATION, ~~?~~. }:-?, ,~~7H';"~~ ,GI:!G , . ,. GROUND ELEV 7555? DIP "NG' E FROM HORlZ ) 900
<br />HOLE NO, . . . . . . . . . *. . .,.,. '.~ . . . . , . , . ... '-' . " , , , , , , . . , . . . .
<br />caORDS, N.".,....".". E. . . , , . . , . , . ,TOTAL, , -
<br />BEGUN. . :~-,2,8,-,8,2,. FINISHED.. ,5,-,2,9.-.8.2. , . DEPTH Of OVERBURDEN, . . .8.0...1.2. . . " DEPTH.. ?O,~? .. BEARING..,.. -:-:-:~-:-:-; , . . . . . . , . , , , . .
<br />
<br />LOG REVIEWEO BY. .R..Neal.,.,.."".."
<br />
<br />DEt~~LArZl~ftEo:e:tJlfo, , ,9."1.6,,, .1.5.4.7...3.7.., ?:-f~:-~f,. LOGGED BY.., .(h ,~1.!S.h... ..,...,...
<br />~ PERCOLATION TESTS ~zj:' ~t:' ~l>
<br />TYPE WUl OEPTH \u':J::1- llJO~ o..~ U u..x
<br />AND 2i~ (FEET) ~ G~ u1;:~ ~'=. fg ~~
<br />S~l,:E UM LOSS ~ ~~ ~..J ~~
<br />HOLE ct FROM :: -lo CI ~....
<br />(%) t:; ~:I TO (G. P.M. I CP.S.I,) (MIN.' ~
<br />
<br />NO'TES ON WATER
<br />LOSSES "NO LEVELS.
<br />CASING, CEMENTING,
<br />CAVING, AND OTHER
<br />ORILLING CONDITIONS
<br />
<br />Drilled under Speci
<br />fications 5D-C0355
<br />Bechtold Const. Co.
<br />Wheatridge, CO.
<br />Dri11ed~2011 hole
<br />with bu~:ket auger 10-
<br />from O.~' to 28.0'.
<br />Set 16" O.D. casing
<br />+1.0' to 29.0'.
<br />Grouted casing with
<br />14 sacks Type II
<br />cement. 20
<br />
<br />Drilled IS" diamete
<br />hole with Portadril
<br />522 rotary drill
<br />rig using a 15"
<br />~ingbit and water. 3~
<br />~ri11ed 28.0' to
<br />80.12' below. N.G.
<br />Set precast concret
<br />lPiug 80.3' to 81.3'.
<br />Set: 8" telescoping,
<br />pw, 88, .025 slot 040-
<br />screen from 45.0'
<br />to 80.0'. Installec
<br />" I.D. pump chambe _
<br />asing from +1.01
<br />045.25'. G'tavel
<br />acked well with 50
<br />~16-30 gravel pack
<br />sing 77 sacks on
<br />nidal filling.
<br />
<br />rUled 6" pilot
<br />ell 49.0' NE of
<br />ain well. Drilled
<br />ith Portadrill 522,
<br />ater, and a 3 part
<br />ingb!t. Drilled
<br />.0' to 121.0'.
<br />aroma logged well.
<br />Grouted confining
<br />clay with 3 sacks
<br />.ype II cement.
<br />Installed 4" .saw
<br />slotted PVC pipe
<br />from +1.0' to 41.0'
<br />Gravel packed well
<br />with sand to 1"
<br />grave 1.
<br />
<br />jCORE
<br />LOSS
<br />
<br />CORE
<br />RECOVERY
<br />
<br />*141844 fr)ID wes Un
<br />129 37 fr In S au h Ii e
<br />Top s rface cas in - 7 56.5J
<br />
<br />2;5_
<br />
<br />,
<br />7.
<br />ID-
<br />
<br />CLASSIFICATION AND
<br />PHYSICAL CONDITION
<br />
<br />0.0' to'2.5' POORLY GRADED SAND to
<br />SILTY SAND: Approximately 90% medium
<br />to fine, subrounded sandj approximate 1
<br />10% non-plastic fines; quick. dilatancy ;
<br />maximum size; medium sand; brown; dry;
<br />no HCl reaction; few plant roots.
<br />(SP-sMl
<br />
<br />2.5' to 7.0' CLAYEY SAND: Approximately
<br />65% coarse to fine, angular to sub-
<br />rounded sandi approximately a trace
<br />of 3/8" fine gravel; approximat1ey 35%
<br />fines of medium plasticity; quick
<br />dilatancy; maximum size, 3/8" gravel;
<br />brown; moist; no Hel reaction; fine
<br />crystalline gypsum, Fe stained. (SC)
<br />
<br />7.0' to 14.0' CLAYEY SAND: Approximatel
<br />75% coarse to fine, angular to sub-
<br />rounded sand; approximately 5% fine
<br />gravel; approximately 20% medium plast c
<br />fines; quick dilatancy; maximum size,
<br />i" grave 1; brown; moist; no Hel
<br />reactions. (SC)
<br />
<br />14.0' to 21.5' CLAYEY SAND: Approximate y
<br />80% coarse to medium to fine, angular
<br />to subrounded sand; approximate ly a
<br />trace of fine gravel; approximately
<br />20% of fines of medium plasticity;
<br />quick dilatancy, maximum s lze;, i"
<br />gravel; brown; moist; weak He1 reactio ;
<br />finely crystalline gypsum; some Fe
<br />stain; a few thin interbedded clay
<br />lenses. (Se)
<br />
<br />21.5' to 26.5' POORLY GRADED SAND to
<br />CLAYEY SAND: Approximately 90% coarse
<br />to fine, subangu1ar'sand; approximatel
<br />a trace of fine gravel; approximately
<br />10% fines of medium plasticity; quick
<br />dilatancYj maximum size i" gravel;
<br />brown; moist;no HCl reaction; Some Fe
<br />staining. (SP-SC)
<br />
<br />26.5' to.30.0' CLAY~Y SAND: Approximate y
<br />65% coarse to medium to fine. angular
<br />to subrounded sand; approximately a
<br />trace of fine gravel; approximately 35
<br />fines of medium plasticity; slow
<br />dilatancy; maximum size. 3/4" gravel;
<br />brown; moist; moderate HCI reaction;
<br />a few thin interbedded clay lenses,
<br />chin streaks of crystalline gypsum.
<br />(SC-cLl
<br />
<br />(i:\ \; 8
<br />,< V
<br />
<br />9
<br />
<br />14.n'
<br />
<br />,
<br />
<br />20
<br />21.5 f--
<br />
<br />T'r,e of hole. . . . . , , . . . . . . . D '" Diamond. H .. HoysteUlte, S .. Shot, C .. Chum
<br />Ho e .eol.d '. , . . . . , , . . . , . P .. Packer, em .. Cem.nted, C, .. Bottom of co""9
<br />Approx. .1.. of hol. (X...rl..) . , Ex '" ).1/2", Ax ,. 1.118", 8x .. 2-3/8", Nil:" 3"
<br />Ap'Proll: .Ize of cor. (X...rl..), ,Ex ..1/8';' Ax. 1.1/S", Bx'" 1.5/8". Hx _ 2.1/8"
<br />Out.lcI~ dla, of co.I"~ (X.aerl..). Ex '" )-13 ~.6". Ax'" 2.1/4..... Bx.. 2-111::. Hx.. 3:V2"
<br />1."lde dla. of co.I"9 (X...riu). ,Ex _1_1/2. Ax _1.29/32 , Bx.. 2.3/8 , Nx.. 3
<br />FEATURE. . . ~!i,ly,g~.1:l~Hl!.. . .. . .,. . .., . .. .. . PROJECT SL~_C~os~d. Basiusn,TE Colorado. . . SHEET 1. . . OF .3 un, 1:'...... ..11 ,
<br />
<br />26.~
<br />
<br />3
<br />
<br />.
<br />
<br />""
<br />
<br />50-
<br />
<br />60
<br />
<br />60-
<br />
<br />65.
<br />
<br />70.
<br />
<br />Pu Tesc~d
<br /> 29-8.
<br />iRate I lrawdo,
<br />k;.P.M, feet
<br />40 8.51
<br />80 16.57
<br />120 24.1
<br />160 32.49
<br />200 40,6
<br />
<br />-
<br />
<br />701-
<br />
<br />80-
<br />
<br />8
<br />
<br />90
<br />
<br />90-
<br />
<br />95.
<br />
<br />EXPLANATION
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