PERMFILE58182

• Permit No: C1982057
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: ENGINEERING GEOLOGIC GROUND STABILITY INVESTIGATIONS 005 GULCH AND VICINITY
• Section_Exhibit Name: TAB 13 ATTACHMENT 13-3B
• Media Type: D
• Archive: No

,,
Trench 7
N25° W =~
0
I 5
0 I 10
1 15 `
~ ~ I 20
Soil
I
~
25
and Humus
~
- I
- 30
~.~1 I 35

5
1 - I 40
Weathered
1 '- -' ~ So11 I
cla
Y with ~ '-'
lnor ~ - ____ and Humus
s ~
sandstone and shale
~~ lcar o
` ~
u
~
da
~ fragment
rk
~ ` --
~n~ a ]e s
~ ` _ _

10 _
~ " ~
Length (along slope) - 46' Scale 1"=5' Calcareous, dark ~
bro
Orientation - N25W
1 wn shale

Landslope - 20% NW Shale and
Location - see attached map B _
cla _
ystone
Date cut, 5-6-92; date mapped, 5-8-92.
15
Description - The upper 1' to 2' of the trench is in dark brown to black humus
and soil cover. Underlying the humus is about 3' of tan to light brown
weathered clay with rare spots of calcareous material. Mixed with the clay are
minor amounts of shale and sandstone fragments. The latter mainly are
weathered and generally non-calcareous, although some are fresh and calcareous. ..
20
Below the weathered clay is a calcareous, fine-grained, dark brown shale
that weathers tan, and has a hackly fracture. This section which is about 3'
to 4' thick appears almost like bedrock, but no bedding or other i ndication of
bedrock was observed.
The lower 6' to 8' of cut by the trench are in shale and claystone which
is less weathered than above. The shale and claystone are dark brown,
weathering to tan, calcareous, iron-stained and streaked with sandstone
fragments up to 6" in maximum dimension.
Roots were exposed for full depth of the trench.

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