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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002587

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G19

GEOLOGIC LOG OF DRILL HOLE NO. OH-102

II>EET I IF I

FEIoTUlE: DURANlO PlMPlNa PUNT
LDCAnOM:
8EI;tM. 01_12-811 "NISHED: Ot.-1....
DEPTH AND ELEV. OF MATEA
lEVEl. ANJ DAn: MEASURED: 211.3 I 6A6ot.!OI

PROJECT: ANIMAS-l.A PUlA
COtRIllU.TES: H 223386.3 E
TOTAL cmom 80.1
oW-lsO emRDCK: 26.9

1308285.0

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STATE: ctlL.OR.lDO
6R0lIm B.EVATION: 6492.'
AM8l.E FROM HOFlllONT AL: 11(1 eEAAIN8:
HOLE LDB6Ell.~ _'/~~~
REVtENED BY: ?P~ ..e,t>'-' (/

CLASSIFICATION AND
PHYSICAL CONOITION

S .JOINT AT 81 DE6AEES: S1.16HTU OPEN (01) 10
MODERATELY OPEN 102): VERY TtIItl nt) IN-
Ftt..UNG Of' SILT. ClAY. AMI SANe; FRESH [Nil:
MODEAATEL Y ROUGH 1R31: PUfWl; LOCATED AT
5<1.""',

81.1 - 801.0: COAL lM4A):
BRITTLE. BUCk: UMlNATED AT APPROXIMATELY
7!1 0E1mEES fROM THE CORE AXIS; FRESH Pl11:
SOFT Ot&). BREAkS lfITH MODERATE MANUAL
:.. ~ NO AEAC110N IIITH HCL..

.... - 10." __ 0411'
SAlCSTONE - FINE TO MEDIUM 6AAlNED, GUAATZDSE.
6AAY; VERY THIN..Y TO THINl.Y BEDDED AND CROSS-
BEDDED (3/1 IN. TO o.S FT.I AT lS5 TO 81 DEUlEES;
. FRESH (WI); MOOEAATEL. Y HlRD (H~ TO HARD CH3).
CORE BREAKS ALONG .B!DD1M8 wI1ll MODERATE TO IEAVY
HAlt4ER BLON: NO TO WEAK REACTION MITH HCL.
lWfUoCTUAED vnol FROM 9.1 TO 73.5 FT.. INTENSE-
LY TO MODERATELY FRAC'T\IEO (FOS) FROM 13.15 TO
76,4,. NITti DIScotnINUITIES AT o\NGL.ES'FROM THE .
CORE WS AS fllU.OMS -

S .JOtMTS AT to TO i5 DEGREES; VERY CLose. Y TO
ClOSELY S9ACED ISPI TO SP5l. Sf' IN. TO 0.15
".: TICIHT TO SLt6HTlY OPEN 100 TO oU: Cl.EAN
1001 TO VERY THIN Inl INfILLIN' Ql" 51J.. T AM)
cu.Y tilTH PYRITE ALIlNi THE .JOINT SURFACES:
FRESH llU,): SLI8tm. Y AOU8H IA.): PLANAR:
LOCATED fROM 7..2 TO 7..8 ".

. JOINTS AT e TO 80 OE&REES: SPACED 0.1 TO 0.3
ft.: Tl;HT TO SLI8tfTlY IIPDI too TO aU: vew
THIN (T1) to THIN (T31 "IMFILUNB OF SILT. cu.Y.
I- ANJ SANtI: FRESH (Nt); SLUHTLY AOU8M IA.);
~ LOCATaI FADM 73.5 TO 7..0 FT.

V9IY SLI8'HTl.Y FRACTURED (FOil "RoM 76.. TO go.l
FT. WITH ONE DISCONTINUITY AT AN AN6LE FROM THE
CORE AXIS AS FOLLOWS -
'"
1 .J01NT AT S3 DEBAaS: SUBKI'L'l' OPEN 10SI: VERY
THIN CTS) t'*ILUM8 OF CLA'l' AtIl TRACES Of
PYRITE ON JOINT SURFACES: FfltQt (Vt): MODER-
ATtLY ROUSH CFI3): PL.AHAft LOCATED AT"1I11.7 fl.

IlTAATJIfW'H't:

0.0 - 10.' """tHATE AESIDUE
~.7 - 211.' QUATIRNAAY TOWel (It)
.......8 . 90.1 CRETAceOUS MENEFEE FORMATION CKp))

I SHEET 3 OF . I DRII..l. HOLE D.H02