PERMFILE50729

• Permit No: C1981028
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: ASH DISPOSAL PLANS
• Media Type: D
• Archive: No

Generalized Stratigrephic-Column Sec 2S T3N R69W
r,
U
470
•
F'"
LL
Clay, grey, "blue" with yellow cloy clasts.
Gypsumniferous clay shales with intermediate
resistant siltstone layers (2" to 4" thick).
Ground water production limited and isolated.
Observed discharge rates <lgpm. Resistant
Sandstone - siltstone concreations.
when dry, caliche and minor pyrite in points.
Gray clay clasts upper 1 ft. H2S gas production
from saturated lignite near edge of deposits.
\ Lignite, hard, dark brown to black. Poor cleat
development, semi concoidal fracture, friable
Clay, grey, dark gray with minor-very fine
~:.'`'
~
~' grained well sorted gray sands, within 2 f t.
y~ •.' below coal. Thin layers of coal
and black,
J
\ ,;~
;1," ,
friable shales thinly interbedded. .Occasional
W Z,::•:~ thin sandstone and siltsone beds.
,~~,

•? .
0 `
~
45 ;`
'~;~:~~ Sandstone, grey-buff with occasional soft
';; - carbonaceous shale.

Sandstone, yellow brown calcareous interbedded
dark gray sandy shale with massive white
- sandstone. Gradational contact with underlying
4 Pierre shales. (Fox Hills Formation).
4 ~
;
:
;~.;
:

• -
-_- Shale, dark gray black, marine (Pierre Shale).

-12-
Undifferentiated l:olian sands - V, fine to medium
grained buff to brown with yellow-orange nrkosic
unconsolidated sands.ln upper zone. Grades to
/ silty clayey sands at base. Weathered and
~;. / locally saturated.
~:~;, Clny, yellow brown-gray moderately weathered,
' occasional silty Bendy layers resistant siltstone
:~,''o
-3,_ -~ - sandstone -concreations