2007-08-10_PERMIT FILE - C1980007 ‎(4)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/10/2007
• Section_Exhibit Name: Exhibit 76 Report Spring 2007 Part 2
• Media Type: D
• Archive: No

Barr Engineering Company
4700 West 77th Street LOG OF BORING SB-06-06
BARR Minneapolis, MN 55435-4803
~ Sheet 3 of 4
Project: Monument Dam Location: Paonia, CO client: Mountain Coal Company
Barr Project Number: 06/26-067 ~ STANDARD PENETRATION NATURAL DRY
m TEST DATA DENSITY
w ~ o ~ ~ o N in blows/ft OO (pcf) yY
MATERIAL DESCRIPTION ~ a > o to 20 so ao tos tts its
o r
~
Z ~
~ (ASTM D2488) a
` ~'

m s'

~ ~ ~ ~

~ SHEAR STRENGTH, ksf Water Content,
LJJ ~ ~ ~ a) QP X UC ~ TV 31f WP WN WL
f6
N VS ~ VSR O
60 1 2 3 4 20 40 60
fine-grained gravel, gray/oxidation, saturated 3. SILTY 60.0
SAND (SM), trace clay, sand fine- to medium-grained 9 9
II ra /tan/oxidation saturated
LEAN CLAY (CL), trace fine- to coarse-grained sand, trace ~
~
fine- to medium-grained gravel (shale and sandstone), ~
gray/brown/oxidation, saturated, stiff; silty fine- to 20
medium-grained sand, with clay, gray with some oxidation 20
from 61.3-61.5', trace to with fine- to coarse-grained gravel I
72
5 from 62.5-64.5' 7285.0
8 65 LEAN CLAY (CL), trace fine- to medium-grained gravel 65.0
j
(shale and sandstone), gray/oxidation, moist, very stiff; black 17 ~ 7
with organic odor from 66.1-66.3' (coal?); fine- to 1
coarse-grained gravel from 70.5-72.0' ~

t
7280 70
26
1
I
1
I
7275.0
7275 7.5
LEAN CLAY (CL), trace fine- to coarse-grained sand, trace 75.0
to with fine- to coarse-grained gravel (shale and sandstone), 1 g o 8
gray/browNtan/oxidation, saturated, very stiff ~

7270 80
61 » 61

7265 85
100 » 100

7260 90 Continued Next Pa e
Completion Depth: 97.0 Remarks:
Date Boring Started: 7/10/06
Date Borin
leted: 7/11/06
Com
g
p
Logged By: JDG SAMPLE TYPES WATER LEVELS
Drilling Contractor: DA Smith
illi
M
S
m Auger Cutting ,Shelby Tube SZ While Drilling: 17.3
-
Dr
ng
ethod: H
A End of Drilling:
® Split Spoon ~ Rock Core
hrs After Drilling:
The stratification lines represent approximate boundaries. The transition may be gradual.