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<br />
<br />GEOLOGIC LOG OF DRILL HOLE
<br />
<br />SHEET. . . ~. . . OF. . ~ . . . . .
<br />
<br />co
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<br />
<br />FE'" TURE ~ . .S.e.l::.tg~. J'l~.1~!J, . . . . . . , . . . . . . .. .. .. . , . PROJECT. .SLV .":' .Closed .Basin . . . . . . . . .. . . . . . . . . . STATE, ,Colorado' . . . . . , , . , .
<br />SW-4 LOCATION. ~~~~~. ~-;?, ~~:<!.?:n .GI?G. ... GROU"D ELEV 7555? DIP (HOGLE F~MHORIZ) 900
<br />HOLE NO. . . . .. .... 'I< . .... .... .'."1... .... . ~. nv _ .. . . . .. . " .. .. .
<br />caORDS. N.............., E. . . . . . . . . . . ,TOTAL I .
<br />BEGUN.. .1.-.2.6.-.6.2.. FINISHED.. .5,-,2,9.-.6.2... DEPTH OF OVERBURDEN... ,6.0...1~..... DEPTH.. ~Qt~?,. BEARING.... .-;-;-:-:-:-:-:....,.....,...
<br />lOG REVIEWED BY. ,R..Neal..............
<br />
<br />~'.~
<br />
<br />l::",
<br />
<br />NO.TES ON WATER
<br />lOSSES AND lEVELS.
<br />CASING, CEMENTING,
<br />CAVING, AND OTHER
<br />DRILLING CONt1ITIONS
<br />
<br />Drilled under Speci
<br />fications 5D-C0355
<br />Bechtold Const. Co. .
<br />Wheatridge, CO.
<br />Drilled~."20" hole
<br />with buer'ket auger 10-
<br />from O.~' to 26.0'.
<br />Set 16" D.D. casing
<br />+1.0' to 29.0'.
<br />Grouted cas ing with
<br />14 sacks Type II
<br />cement. 20
<br />
<br />Drilled 15" diamete
<br />hole with Portadril
<br />522 rotary drill
<br />rig using a 15"
<br />lwingbit and water. 30
<br />Inrilled 28.0' to
<br />80.12' below. N.G.
<br />Set precast concret
<br />Witig 80.3' to 81.3'.
<br />Set 811 teles.coping,
<br />1;1w, SS, .025 slot <0-
<br />screen from 45.0'
<br />to 80.0'. Installed
<br />" LD. pump chamber
<br />asing from +1.0'
<br />045.25'. Gravel
<br />acked well with 50
<br />716-30 gravel pack
<br />sing 77 sacks on
<br />nitial filling.
<br />
<br />ril1ed 6" pilot
<br />ell 49.0' NE of
<br />ain well. Drilled
<br />ith Portadrill 522,
<br />ater, and a 3 part
<br />ingbit. Drilled
<br />.01 to 121.0'.
<br />aroma logged well.
<br />Grouted confining
<br />clay with 3 sacks
<br />.ype II cement.
<br />Installed 411 .saw
<br />slotted PVC pipe
<br />from +1.0' to 41.0'
<br />Gravel packed well'
<br />with sand to 1"
<br />gravel.
<br />
<br />JCORE
<br />LOSS
<br />
<br />CORE
<br />RECOVERY
<br />
<br />(~)
<br />
<br />DEPTH W %...
<br /> .
<br />(FEET) ~ ...~
<br /> UW
<br /> LOSS ~ %...
<br /> W W.
<br />FROM. . ~u
<br />(~;l~j TO . ("UN.)
<br />(G.P,M.) CP.S.I.)
<br />
<br />CLASSIFICA TlON AND
<br />PHYSICAL CONDITION
<br />
<br />0.0' to.2.s' 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-8M)
<br />
<br />-,-
<br />
<br />2.5' to 7.0' CLAYEY SAND: Approximately
<br />65% coarse to fine, angular to sub-
<br />rounded sand; approximately 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 />*1418 44 frl:m wes lin
<br />129 37 fr m sou h Ii e
<br />Top s rface casin - 7 56.5s
<br />
<br />2;5e--
<br />
<br />7.0' to 14.0' CLAYEY SAND: Approximate 1
<br />75% coarse to fine, angular to sub-
<br />rounded sand; approximately 5% fine
<br />gravel; approx~tely 20% medium plast c
<br />fines; quiCk dilatancy; maximum size,
<br />%" 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 subrounded sand; approximate ly a
<br />trace of fine gravel; approximately
<br />20% of fines of medium plasticity;
<br />quick dilatancy; maximum size;. .!z"
<br />gravel; brown; moist; weak HCI reactio
<br />finely crystalline gypsum; some Fe
<br />stain; a few thin interbedded clay
<br />lenses. (SC)
<br />
<br />21.5' 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 i" gravel;
<br />brown; moist;no HCl reaction; some Fe
<br />staining. (SP-SC)
<br />
<br />26.51 to.3D.O' CLAYEY 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 />brawn; moist; moderate Hel reaction;
<br />a few thin interbedded clay lenses,
<br />thin streaks of crystalline gypsum.
<br />(SC-CL)
<br />
<br />Typ. of hol. . . . . . . . . . . . . . . D . Dlomond. H . HaYlt.IIIt., 5 . Shot, C . Chum
<br />Hol.ll1Il.d ............ .. P _ Poek.r, Crn _ C.mented, C. . Bottom of.~ollng ..
<br />Appro". .1.. of hole (X...rlel).. Ex. 1.1/2", A" '"" 1-7/8". Bx .2.3/8", Nx - 3 "
<br />App.ox. II.e of cor. (X.nrl..) . . Ex . 7/S'}' .. Ax. 1.1/S::. Bx . 1-5/8... NlO: _ 2-1/8..
<br />Oullld. dlo. of eOllng (X-..rlu). Ex ...1.13 !.6 , Ax. 2-114 '" Bx. 2-718..' Nx. 3;V2
<br />Inllde dlo. of eOllng (X..erle.).. Ex _ 1.112, Ax. 1.29/32 , 8x - 2.3/8 , Nx - 3
<br />FE.TU_E Salv80e Wells . , ... PROJECT SLY:-C).()~ed. 4\es insTATE Colorado:.. SHEET 1. . . OF. .~. HOLE NO. . SW":"4. . . . . . . . .
<br />.. ....... ................. ....... . , *t.lNUllllflt"IITlIt''''Cl,IIt'1"II-llr
<br />
<br />7.
<br />
<br />10
<br />
<br />14.
<br />
<br />1
<br />!
<br />
<br />20
<br />21.5
<br />
<br />26.~
<br />
<br />3D
<br />
<br />40-1---
<br />
<br />50-
<br />
<br />60
<br />
<br />6Q-
<br />
<br />-
<br />
<br />65.
<br />
<br />Pu fp Test d
<br />-29-8
<br />
<br />70-
<br />
<br />70
<br />
<br />r awdo
<br />feet
<br />
<br />.
<br />
<br />-
<br />
<br />~te
<br />f.P.M.
<br />
<br />40
<br />80
<br />120
<br />160
<br />200
<br />
<br />'0
<br />
<br />8.51
<br />16.57
<br />24.19
<br />32.49
<br />40.6J
<br />
<br />.0
<br />
<br />90
<br />
<br />9<r
<br />
<br />.
<br />
<br />95."'
<br />
<br />EXPLANATION
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