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<br />
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<br />
<br />GEOLOGIC lOG OF DRill HOl
<br />
<br />1 3
<br />SHEET. . . ' . . . OF. . . . . . . .
<br />
<br />FEA lURE. . .S.a.ly.ag~. 1'l~.1,l~. . . . . . . . . . . . . . . . . . . . . . . PROJECT. .SLV.,,:, .Closed .Basin . . . . . . . . . . . . . . . . . . . STATE. . Colorado' , . . . , . . . . .
<br />Stage 1-2 38-12-32 !;OC 0
<br />HOLE NO. . , ,S!1,-~. . , LOCATION. . . * ..",..,..,..... "..,. GROUND ELEV. .~~~~ .,4, . . " , , .. DIP (ANGLE FROM HORtZ.). .90, . . . . . . . . . . . .
<br />COORDS. H.....,"....,.. E. . . . , , . . , , . TOTAL
<br />BEGUN.. ,1.-.2,8:-.8,2.. FINISHED.. .5.-,2.9:-.8.2.,. DEPTH OF OVERBURDEN... ,8.0,..1.2.'.,.. DEPTH. ,~O,~?:,. BEARING".. .-:-:-:-:-:-:-:.,..,........,
<br />
<br />DE~~~lA~SDE6i~E'1"E:tJ~:D. . .9...1,6.'. ?5~?. '?7". ?:-?9:-??,. LOGGED BY. . , ,q.. .~l!~h. . . . .. .. . . .. lOG REVIEWED BY, ,R.. Neal. . , . . . . . . . , , . ,
<br />
<br />NOTES ON WATER
<br />LOS!tES AND lEVELS,
<br />CASING, CEMENTING,
<br />CAVING, AND OTHER
<br />DRilLING CONDITIONS
<br />
<br />Drilled under Speci
<br />fications 50-C0355
<br />Bechtold Canst. Co.
<br />Wheatridge I CO.
<br />Dr illed ~.20" ho Ie
<br />with bu~ket auger
<br />from O.~I to 28.01.
<br />Set 16" 0.0. casing
<br />+1.0' to 29.0'.
<br />Grouted casing with
<br />14 sacks Type II
<br />cement.
<br />
<br />Drilled 15" diamete
<br />hole with Portadril
<br />522 rotary drill
<br />rig using a 15"
<br />ingbit and water.
<br />rilled 28.0' to
<br />80.12' below N.G.
<br />Set precast concret
<br />lug 80.31 to 81.3'.
<br />Sel 8" telescoping,
<br />WW. SS. .025 slot
<br />creen from 45.01
<br />to 80.01. Installe
<br />" 1.D. pump chambe
<br />as ing from + 1. 0'
<br />o 45.251. Gravel
<br />acked well with
<br />~16-30 gravel pack
<br />sing 77 sacks on
<br />nitial filling.
<br />
<br />rilled 6" pilot
<br />ell 49.0' NE of
<br />nain well. Drilled
<br />ith Portadrill 522,
<br />ater, and a 3 part
<br />1w1ngb1t. Dri lled
<br />~.O' to 121.01.
<br />pamma logged well.
<br />Grouted confining
<br />clay with 3 sacks
<br />.ype II cenent.
<br />Installed 4" .saw
<br />slotted PVC pipe
<br />from +1.0' to 41.01
<br />Gravel packed well
<br />with sand to I"
<br />gravel.
<br />
<br />iCORE
<br />lO!tS
<br />
<br />CORE
<br />RECOVERY
<br />
<br />TYPE
<br />AHD
<br />SIZE
<br />OF
<br />HOLE
<br />
<br />..
<br />~
<br />ww
<br />~..
<br />00
<br />uu
<br />w
<br />~
<br />
<br />PERCOLATION TESTS
<br />
<br />..(:z;:
<br />~ow
<br />.Jj:~
<br />'" -
<br />
<br />:r-
<br />>->-
<br />~w
<br />Ww
<br />o!o
<br />
<br />!!
<br />:roo
<br />~o
<br />"''''
<br />~
<br />"
<br />
<br />~
<br />~"
<br />~=
<br />w>-
<br />...~
<br />~w
<br />~>-
<br />~
<br />
<br />CLASSIFICATION AND
<br />PHYSICAL CONDITION
<br />
<br />W
<br />.
<br />~.
<br />W
<br />~
<br />~
<br />(P.s.l.)
<br />
<br />:r>-
<br />>-~
<br />OW
<br />%>-
<br />W.
<br />~o
<br />(Mlto/,)
<br />
<br />0.0' to.2.5' POORLY GRADED SAND to
<br />SILTY SAND: Approximately 90% medium
<br />to fine. subrounded sand; approximatel
<br />10% non-plastic fines; quick. dilatancy ;
<br />maximum size; medium sand; brown; dry;
<br />no HCl reaction; few plant roots.
<br />(SP-SM)
<br />
<br />2.5' to 7.0' CLAYEY SAND: Approximately
<br />65% coarse to fine, angular to sub-
<br />rounded sand; approximate ly a trace
<br />of 3/8" fine gravel; approximatley 35%
<br />fines of medium plasticity; quick
<br />dilatancy; maximum size, 3/8" gravel;
<br />brown; moist; no HCl reaction; fine
<br />crystalline gypsum, Fe stained. (SC)
<br />
<br />7.0' to 14.0' CLAYEY SAND: Approximate 1
<br />75% coarse to fine. angular to sub-
<br />rounded sand; approximately S% fine
<br />gravel; approximately 20% medium plast c
<br />fines; quick dilatancy; maximum size,
<br />1" gravel; brown; moist; no HCl
<br />reactions. (SC)
<br />
<br />14.0' to 21.5' CLAYEY SAND: Approximate y
<br />80% coarse to medium to fine, angular
<br />to sub rounded sand; approximately a
<br />trace of fine gravel; approximately
<br />20% of fines of medium plasticity;
<br />quick dilatancy; maximum size~ i"
<br />gravel; brown; moist; weak HCl reactio ;
<br />finely crystalline gypsum; some Fe
<br />stain; a few thin interbedded clay
<br />lenses. (SC)
<br />
<br />21.51 to 26.5' POORLY GRADED SAND to
<br />CLAYEY SAND: Approximately 90% coarse
<br />to fine, subangular sand; approximate 1
<br />a trace of fine gravel; approximately
<br />10% fines of medium plasticity; quick
<br />dilatancy; maximum size ill gravel;
<br />brown; moist;no Hel reaction; some Fe
<br />staining. (SP-SC)
<br />
<br />26.5' to.30.0' CLAYEY SAND: Approximate y
<br />65% coarse to medium to fine, angular
<br />to subrounded sand; approximately a
<br />trace of fine gravel; approximately 3S
<br />fines of medium plasticity; slow
<br />dilatancy; maximum size. 3/4" gravel;
<br />brown; moist; moderate HCl reaction;
<br />a few thin interbedded clay lenses,
<br />thin streaks of crystalline gypsum.
<br />(SC-CL)
<br />
<br />T,. of hol. . . . . . . . . . . . . . . D _ Diamond, H _ Hay,'.lllh. S .. Sho'. C - Ch..m
<br />Hor: leol.d . ..... .. ..... . P _ Poeke., Cm _ Cement.d,. C. .. Bottom of,~a.lng ..
<br />App~ox. .iu of hol. (X...~~..). . Ex" I.l<~". Ax" 1.7/8:,' Bx.. 2.3//8... Nx: tl/0"
<br />Approx lb. of core (X.......). . Ex.. 7/8 , Ax .. 1.1/8, Bx .. 1.5 8 . Nx .
<br />O..lIld~ dlo of eOling (X...ri..). Ex .... 1.13/16", Ax" 2.11..... Bx .. 2.7/1", Nx.. 3;!/2'
<br />In. ide die. ~f eo.ing (X-....i..). . Ex" 1.1/2", Ax" 1.29/32". Bx.. 2.318". Nx - 3
<br />FEATURE Salvag'i!- We lIs... . . . . . .. . . . . , . , . . PROJECT S~Y:-CloBed. Bas irG.TATE Colorado. . . SHEET 1. . . OF . .~. HOLE NO. .SY'r"4. . . , . . . . .
<br />......., ...... 'll"U..IIIII..UT"IIT'lIlfflCl:llll'"flH't
<br />
<br />DEPTH
<br />(FEET)
<br />
<br />LOSS
<br />
<br />FROM
<br />(:;i~i
<br />
<br />TO
<br />
<br />(G.P.M.I
<br />
<br />(~)
<br />
<br />*1418
<br />129
<br />Top s
<br />
<br />44 fr I(D wes
<br />37frmsou
<br />rface casin
<br />
<br />2;~
<br />
<br />lin
<br />h Ii e
<br />- 7 56.53-
<br />
<br />,
<br />7.
<br />,0-:
<br />
<br />10
<br />
<br />14.
<br />
<br />20
<br />
<br />j
<br />j
<br />,
<br />
<br />20,
<br />21.5 _
<br />
<br />26.~
<br />
<br />30-:
<br />
<br />3
<br />
<br />,
<br />
<br />..0-:
<br />
<br />;~/,
<br />
<br />40-
<br />
<br />so
<br />
<br />so-
<br />
<br />60
<br />
<br />.0-:
<br />
<br />65.
<br />
<br />Pu,~ Test d
<br />1-29-8
<br />
<br />70 -
<br />
<br />70
<br />
<br />Rate
<br />,P,M,
<br />
<br />awdO"~l
<br />feet
<br />
<br />00
<br />
<br />40
<br />80
<br />120
<br />160
<br />200
<br />
<br />8,51
<br />16,57
<br />24,19
<br />32,49
<br />40.6
<br />
<br />aD
<br />
<br />-
<br />
<br />90
<br />
<br />9<>:
<br />
<br />95.
<br />
<br />EXPLANATION
<br />
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