WSPC06446

• File Number: 8220.106.A.1.c
• Description: Colorado River Water Projects - Animas La Plata - Description - Construction - Durango Pump Station
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 10/7/2002
• Author: DOI-BOR
• Title: Durango Pumping Plant - Stage I - Project Specifications - Volume IV
• Water Supply Pro - Doc Type: Report/Study

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GEOLOGIC LOG OF DRILL HOLE NO. DH-104

SHEET S Of I

FEAllR.: DUAAN60 PUMPIN& PLANT
lOCATION:
eE6I.It U-09-88 FlNISHED: U-H-BB
~,lIClAJllEL5XtEO~ 30.2 I 8482.201

PROJECT: ANIHAS-U PUT It
COORDINATES: N 223039.1 E 1308271..
TOTAL DEPTlt: 70.0
DEP'!'H'TO BEDROCK: 30.0
03-27-89

PERM.f~.PJk-ITY 1/:
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ALL Musl.e:MENTS AAE:
FROM 6A0UI) LEVa AKI
ARE THE SAME AS THOSi
USED BY Tl4E DRILLER.

.ou................ ARE
IN FEET EXCEPT WHERf
NOTED DIFFERENTLY.

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RESJON&l DAIU. CRElt.
D. KAIJCE. DRILLe:I

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FOtJC)ATION INVfSTI-
SATION.

DAn.L ~
0.0-70.0 ;US PECH
JA.A 1 fOP HEAD DA1YE
TFIICK MOlMfED DRILL
RII.

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DAn.L ...-
0.0-12.1 ..0 INCH
lJoISlOE: DIAMETER
HDU.0tI STEM AlJ8EA
IfIlM STAJrlDAfID PEtE-
TRATION SAMPUN6
FROM 2.0 TO 10.1
" . SAMPLER MAS
SET 0.5 Fl. INTO THE
TOP Of EACH IH'RFIYAL..
Bl.C* COUfTS REPORTED
ARE 1lE TOTAL. NlICBER
OF BUllIS AEIMJI1E) TO
DAIVE THE 6AMPLEA THE
BonClM 1.0 FT. OF
EACtI ItlTERVAL.
12.1"35.0 ..0 INCH
INSIDE DIAMETER
1IlRELlNE SYSTEM lIITH
IIITH S1' AtIlAAD PENE-
TRAnON SAHPU'Nli
ffmM 13.0 TO 115.3
n. AMJ fROM 16.15 TO
lB.1FT.
35.0-'0.0 NXa.. DIA-
MOtCt"""JRELJNE.
TRIPlE ME CORE
........

.,. DATA::
VlfEAVAI.. BLOVS/F'T.
!I.&" 3.8 80/0.3
'.I-SO.l 150/0.3
U.l-U.1 150/0.0
12.1"12.1 80/0.0
15.0-11$.3 50/0.3
ALL 0THEFl SPT DATA IS
IIEf'(InB) IN THE CENTER
COUIlN SPT RCTION.
OTHER BUNICI IN TtE
""_.............
INTEAYAI.IlHAT lEE
NOT IPT TE8TEII.

.......-
r<<:l CASING USED.

DAn.LDII __
0.0 TO 70.0 - Cl.!AA
"TEA.

EIGLL.fIJIID AE'I\IIR
IlEPTM IIE'r\MN COLCIA

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CORE RECDVEAY F'AaM 3:5.0 TO AO.O FT. MAS POOR.
'0.3 FT.J DUE TO MECHANICAL DRtU.INI DtP1ICUL.TtU.
TlE BEDROCk MAS IHTEfFRETED TO IE ~NANTLY
Sn. TSTotE AM) SHALE BASED lPON TlE UMItm RE-
COVERY, LlTHDL08Y Of CORE FROM ADJACENf INTEFlVAL.S.
.vi) TIE CHARACTER Of DRILUN6.

CENTER CCI..1JMIriI DAn IS NOT DISPUYED FaR INTEJWALS
LESS THAN 1.0 FOOT THICk. TtE DAn FtlA THEBE
INTUlYALS CAN IE FOUrm IN 1tE -NOTES- ANDIGA TIE
-cu.ssInCATION AHD PH'fSICAl.. oescAIPTION-. CCLlMIS.

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STATE: COI..DRADO
6RlMC) ELEVATION: 6A92.A
-.NllLE FADM HOAIlONl o\L:: 80 eEAFlIM8:
Hl1.E LOlOSED BY; ~;/BEcqAlSTDtE
R6IE'lEll BY; .7~ JIf?.6~

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CLASSIFICATION AND
PHYSICAL CONDITION

0.0 - d.1: IUATEJIWW AL.LUYI\Il ..u:

0.0'" "1.0: CLAm uti) WITH 1AA'VEl.!
PODAL Y AECOYEAEI) AS FlNE TO COAR$! SUBFlOUJrIlED TO
Gal SllBANSlLAR SAND lItTH SUBRllUNDED GRAve. TO .l8OUT
100 . MAXIl4lIM SIZE. RECQYlRY IMCLUDU MINOfl
FINES WITH MEDIUM PUSTICITY. BFIOliIN TO REDoISM--
8Fl0VN; STRONG REACTION WITH HCl... INTEFlPRETED 1ll
BE a..AYEY SAND WITH lmAVEL.

- "8.0-M.1t
-
"1.0'" 10.0:

.alAlIAIWIY TIRRACl tIt):

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CLAYEY -..__ MInt CC88LEI AND
IOWIiRIt
POOAl. Y RECOVERED AS COBBLES AtCI BOULDERS WITH
SAIIJ. 1IlN~ IJC) MINDA Cl..AYa FlNES. COIoRUA
I4IoTEAIIoL IS PREDOMINANTLY COMPOSED OF I6NEOUS
AND tEl AMDfFHIC ROCK FRAGMENTS. MAXIMUM SIZE
RECOVERED IS ABOUT !SO.: 8JU)NN TO REDDISH-
8R0MH; STRONIl REACTIOH WITH HCl... INTtRPFlETED TO
BE cum 6AAYa MITH COBBLES AM) 801.l.0EAS.

10.0 ... 70.0: CAETACDIUI MEJe'IE f1IMI,lJ.. .'J:

80.0'" AO.~ enT.-raNE. IIITM INTEFBEIlOfll UtI)8TClNE.
AM) aw..t ..:
SILTSTDtIE M1m APPROXIMATELY 30 PERCENT SANDSTIIfrE
AND 20 PERCENT SHALE. PAa20MINNlTL Y UHO$TONE
FROM 30.0 TO SR.15 FT.. IoHD aILTSlONE 10M) SKALE
FADM SR.!! TO 42.2 FT.

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SIL TSTOHE - BRIoY. CONTAINS SCl.TTEAED CIoR8OMACEOlJS
PARTICLES AlONIl 8EDDIH&: LAMINATED TO VER'l' THIILY
BEDOED a..~ THAN 1/32 TO sn INQO NtTH Pl...NIAR
TO CONVOLUTED 8EIlOING; MOOEflIoTELY TO SLIIlHTLY
WEATHERED (NAI FROM 30.0 TO .0.2 F.T.. FRESH (MIl
eaov AO.2 FT.: SOFT lH6l TO MDlJERATELY SOfT 1tt5)
IiAOOYED ANO SOUlED "IIITH KNIFE MITH LI6HT TO HEAVY
PRESSt.llE: WEAK TO STllONG "fACTION "IIITK HCl...

SANDSTOfrE - GUIoRTZOSE. FINE TO MEDIUM SAAlNED.
6R,lY: LAMINATED TO MODERATELY BEtIDED lLESs TtiAN
ale IN. TO 0.5 FT.) WITH PAEDOHINANTLY PUNAR
!EDDINS; MOOaI.lTELY TO a.lBHn.Y NEATHERED !"IlA);
MODERATELY HARD IHA) TO HMO lH3): WEAK TO BTRONB
REACTION WnH HCl...

SHALE - IlRAY TO DARK GRAY. 6AND'f: LAMINATED USS
1'HAH 3/e IN.) liIITH PU.frUR AND C:ONVClL.UTED eEOOINB:
MOOERATEL.Y TO "$UBHT\.Y.....lMEMD (M4): SOFT lHe)
TO MOOERA TEL Y son be) 6ROO'IED AND 1l0lJllUl MIlM
KNIFE WITH LJ:IHT TO HEAVY PRESS\R: MEAIC TO NO
REACTION WITH HCl...

OVERAlL INTERVAL BEDOINli AVEJU,1lES 82 DEIAEES FROM
TNE CORE AXIS: ~ CR1JS)ED AM) FAIo6MENTED tlJAINS
ORILLIMIl FADM U.IS TO ..0 FT.. AND VERY POORLY
RECOVEJE) FADM ".0 TO 410.2 I'T. INTERV..... IS
INTERPRETED TO IE 1NTENSa..Y 10 VERY IKTEMSEL.Y
. FR.lCTURED FU8I WITtt OIsalMT.INUITIES AT ANGLES

I SHEET 'OF 3 I DRILL HOLE 0.H04