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-105

SHEET . 1IF 7

FUT'lR: DURAH60 PlJ4PIN6 PLAHT
LOCATION;
IlEBUtt: n-n-eB f'1NUHED: 12-22-81
DEPTH AND ElEY. OF WATER
LEVEL AND DATE MEASURED: 30 I 6~g".701

PRO.JECT: >>lIM.lS-U pun
COORDINATES: N 223402." E
TOTAl. DEPTH: 17..15
DEPnl 'fO IEDRDCI<: 31.0
03-27-851

130116A,9

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STAn: colORADO
6RDUNO a.EYATlON: 64llS.0
ANGLE flmM HORIZONTAL: 10 9E.UlINB:
HOLE LOSSED ~TH~~$Tr
RMEIED BY: .

CLASSIFICATION AND
PHYSICAL CONDITION

1 JOINT AT .0 CERES; lISHT IGOI: VERY THIN (TOI
COATINi OF CLAY, FRESH (NU: PLANAIt st.I&HTLY
ROUGH lR.c1 ; LOCATED AT "'.7 FT.

VERY SLI8tm..Y FRACTlAED (FOt} FROM 75.7 TO '46.8
FT. WITH DISCONTINUITIES AT AM6lES FROM 1'HE eM[
AXIS AS FOLLOItS -

S JOINT AT 3. DEiFIEES; TI8K1' 100): VERY THIN (TO)
COATING OF a........ FAEStI Ulll: PlANAR; MODERATE-
~ LYROUGH M: LOCATED"" 87.! FT.

i JOINT AT 39 0E6AEES: TlSHT (00): MODEIUTa. Y
1lfIN C1'i) TRACES OF PYRITE: FRESH nu.) ;
PUHAR; SLI6HTLY A1)l"I8H Cfa); LOCAttD At tOl.!5
n.

I- 1 ,JOINT AT 6i DE6AEES; n6KT (001: YEA "THIN ITa)
COATING OF CLAY, FAESH IV1): PLANAR: MODERATE-
lY ROUSH CA31: LOCATED AT U2.0 FT.

" .JOINT AT. 85 DEGREES; TI6tfT loo}; VEFlV THIN
nil: PMm"YHEJ.LED 0I..l5}; FRESH nU.I: STEPPED
I4DllERATELY ROU&H lA3l: LOCATED AT i25.9 FT.

ItfTENSELY FRA~ fFD7I FROM 146.8 TO 1!52.0 FT.
WITH DISCONTINUITIES AT ANGLES FROM iHE COl'lE AXIS
AS FOLLOMS ~

1 .KlINT AT 2~ DEGREES: TIM 1001: VERY THIN
nil LAYER or CARBONACEOUS PARTICLES ON .JOINT
SlJFAeu: FRESH lWU: PLANAR: MODERATELY ROUGH
(13): SLICKENSIDES PAESEHT ALOHB APPAOXlMAtt
.JOINT DIP: LOCATED AT U6.a FT.

7 .JOINTS AT 23 TO 32 DEIlREEB NOTED FROM Ua.l TO
I~O.1 FT.. SPACED 1/2 IN. TO 1.1 n.: Tl&KT (aD)
TO MODfRATELY OPEN 1021: CLEAN ITO) TO MODERATE-
LY llfIN IT2I llFILLlNi OF SILT AND CLAY, AfI) AN
OCCASIONAL COAT1N6 Of CALCITE: FRESH INI);
PlNWt SLI8HTl..Y ROU;H IRA} TO MODERATELY flOU8H
f- lR31.

A ..mINTS AT <to TO 047 DEGREES. SPACED 0.2 TO 0.9
".: TISHT too} TO &t.IIKn.Y CFEN 101): VERY'THIN
nil COATIN6 OF CALCITE: PAflTLY HEALED (HL..Sl TtI
TOTALLY ~ OL1J: FAESM INS); PI...AIWt
SLlBHTLY ROUSH (MA) TO MODERATELY ROUGH Gal:
LOCATED AT 1.48.15, 1".~ 149.7. S'50.. FT.

1 JOINT AT SO 0E1iAEES: TI6HT 1001; VERY THIN
"11 IYPSUM INFILLING; TOTALLY HEALED ltL11:
FRESH INsI": PUNAA: BLI8KTl. Y AOU&H (PM):
LOCATED AT ISO.! FT.

1 JOINT AT 70 DEliiREES; TIIiHT (00): VERY THIN ITS)
BYPSI.I4 INFILLING: PAATLY HEALED 0t.1I); FRESH'
011); PUtWt SLIBHTLY AOUIH IR.); LOCATED AT
151.S FT.

I SHEET . OF 7 I DRILL HOLE 0H-10S