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-06-02
BARB Minneapolis, MN 55435-4803
~ Sheet 4 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 ~ ~ \ N in blows/ft 0° (pcf) it
`' MATERIAL DESCRIPTION ~ a >o to 20 so ao 1os tts ~zs
~ ~ Z ~
a (ASTM D2488) a
` E'
> ~
~ ` ~ ~
~ SHEAR STRENGTH, ksf Water Content, °h
lL ~ C7 ~ N QP X UC ~ TV 31f WP WN Wi
~ VS D VSR O
1 2 3 4 20 40 60
9l) GRAVELLY SAND (SP), with silt, with clay, fine- to v.:.: ;:
coarse-grained, red/tan, saturated, medium dense; clasts
° 100 ~> 100
very angular, looks similar to exposed talus/colluvium on
right (north) abutment
o ...
7246.9
` ~~ . ~:
VW piezometer installed at depth of 93.0 feet using the
93
3
.
full -routed method PZ-06-03 serial # 86376
End of boring at 93.3 feet, refusal
95
100
105
110
115
120
Completion Depth: 93.3 Remarks:
Date Boring Started: 7/6/06
Date Borin
Com
leted: 7/7/06
p
g
Logged By: JDG SAMPLE TYPES WATER LEVELS
Drilling Contractor: DA Smith
Drilli
S
~ Auger Cutting ,Shelby Tube ~ While Drilling: 22.5
-
ng Method: H
A End of Drilling:
® Split Spoon ~ Rock Care
hrs After Drilling:
fhe stratification lines represent approximate boundaries. The transition may be gradual.