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 ORILl HOLE NO. OH-106

8lEET a IIF a

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FEATURE: DUFlAN60 PlW'IN& PLANT
LOCATIQN:
Bf:8UN: OS-D-U f"1HISl1fD: O1-u-es
~IClANDEL~tEOFHE~ 38.5 16464.901

PADJECT: ANINAS-U PLATA
COORDINATES: N 223088.5 E
TOTAL. llEPltt 110.2
DEPTH TO BEDROCl<: 37.5
03--27-&9

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PJEZO. .....'IEA lPU.8::
DATE ELEVATION
1-30-69 U6S.&
2-27-89 6465.7
!-27-8S1 U65.1
NOTE - PIUOME1VI 1M-
STAl.UTION DESTROYED
IN ""y 1989.

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DRANIN6 NO. _0-D-6485 Sl ANOAIIJ DESCRIPTORS AtCl
DESCAIPTIYE CRITiRU FOR
ROD<.
DRANIN6 NO. _lH)-6A99 Sl.lNlAIIJ DESCRIPTORS AND
DESCAIPTIV!: CRITERIA FOR
DIsctNTINUITIES .

AN6LES AAE IEAS\JRE FAtIM nE CORE AXIS AT 0 OESAEES.

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He ... 2.5 IN, CORE DIA.. 3.78 .IN. HOLE Olio.
SPT . STANDAflD PENETRATION RESISTANCE TESTIN6.

13011157.5

STATE: COLORADO
6RDUtCl ELEVATION: 6501._
AN6l..E FROH HORI2UNlAt..: 80 8EARIH6:
HOLE L061iED BY; ..~~~ONE
AEVIENED IY: ~~R.,.6I~

CLASSIFICATION AND
PHYSICAL CONDITION

(F[l5) FADM 37.'5 TO oC3.7 FT. NITH DISCQNTIlfJmES
AT ANGl..ES FROM T1-E CORE WS AS FOLLDMS -

Ii BEOOIN6 .JOINTS AT 'Ii TO B. 0E8AEES: 116HT IDOl
10 SLI&HTLY oPEN (01.1: CI..EAH (TOI TO VERY THD4
f- 11'11 INF"IUIH6 Of 5I1..T. cu.Y, AND CARBONACEOUS
PARllCL.ES. ,JQINT SURFACES ARE COATED VITH IRON
O:XIOE. ONE .JOINT HAS TRACES OF 8YPStJot ,JOINT AT
3111.1 FT. IS SLICKENSIDED OOWH 'h4E .JOINT DIP:
MODERATELY VEATHERm lW5l TO FAE8t1 hllI:
PUHAft Mcmau.Ta.V FlOlJSN fR3J TO SLIGHTLY ROU6H
tRot): MODERATELY SPACE) (SP_I: LOCATED fROM
37.1S TO .Q.B FT.

2 JOINTS AT 25 D!6AEES; TIM fOO): VERY TKIN
(11) INFILLlNl 01' CLAy, .JOINT SUJF-.cES AR(
ConED NITH IAOM OXIDE AtIl CALCIUM CARBONATE:
KOOERATEL'l' WEATHERED t'Wln: PUHAft SU6HTLY
AOU6H fA..l: LOCATED AT 38.2 AM) 38.3 FT.

1 .JOINT 28 DEBAEES: TIM (001: VERY TKIN (11)
COATIN6 OF CALCIUM CARBOJrI,I,TE ALON& JOINT
SUAFACES: PAflTLY HEALED 1tL5): FRESH 1ll1l:
MODERATELY AIJU&ol PUll: PUoNAR: LOCATED AT
oC3.7 FT.

3 .JOINTS .AT .0 TO .., OEllAEES; TI6H'T (OOl TO
SLI8HT\. Y OPEN 1011: Cl..EAN (TOl TO VERY THIN
(1) INFILlXN& OF SILT, .JOlMT SURFACES ARE
COATED "ITH CALCIlM CAABCllATE: PARTt..Y HEALnI
ltt.S) TO NOT HEALED ltt.6l: 2 .JOINTS HAVE
- SLICKENSIDES ORIENTATED FROM 0 TO 30 OEiREES
FROM THE MAXIMUM ..I01NT DIP: fRESH "UJ: Pl.AfWl
TO UNO\.l.AllM6; SL16KTl Y FlOUSH lfl..): LOCATED AT
",,0.1. 43.0 AfCl 43.2 ".

r- Sl.I6HTL Y FRACTURED (F031 FmlM 43.7 TO .7.8 ".
tilTH DISCOHTINJlllE5 AT ANIL.ES FADM THE ClJAE AXIS
AS FOLLOtfS -

1 .JOINT AT 16 OE6REES: TIIlHT (001: VERY THIN
tTU UF'IL.UNlO OF SILT AtIl CLAY. JOINT BURFACE:S
ARE PARTIALLY COATED WITH CA1.C1UM CAA8C1tATE:
PARTLY HEALED OL5): FRESH IWS}: PUJWt
SUIiHTLY RIIU&H lR-41: 1..0CATm AT Mi.e FT.

2 JOINTS AT !Ie AfCl lIS tE:llMD: &lIMTLY IPl!N
1011: vtAY THIN (U) IlI"ILlINI OF SILT AtCl
TRACES OF CALCIUM CARBONATE ALON8 JOINT
S\JV'ACES: PAFlTLY HEAl..Sl H.m TO NOT HEALED
kill: FRESH 0111: PUNAR; SUIHTl.Y AOUlIH
(JWI: LOCATED ~T "'.'5 AN:) "7.11 FT.

44.' - ".a CON. ~ I
8RITTLE. BUCK; LAMINATED CLESS THAN III IN.I:
FllESH 0111: MIlJERATElY SOFT MI: NO REACTI~
WITH Na...

G.. - IICI.I:: UIClI11lMI nTH ULTnCIlE DITIMEDI

SHEET 2 OF :3 ] DRILL HDl..E Dt+-106

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