2001-12-11_PERMIT FILE - C1980007 ‎(2)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Geotechnical Drilling Information
• Section_Exhibit Name: Exhibit 12A Geotechnical Drilling Information
• Media Type: D
• Archive: No

" MO UNTAIN COAL COMPANY
WEST ELK MINE WELL NO.:_ 4B-B•~
" P. 0. BOX 59 i, 1 Ml. E. OF SOMERSET
SOMERSET, CO 81434
MONITORING WELL / PIEZ0ILIETER AS-BUILT
PROJECT: 986eo+ccb.~...,Il,^• LOCATION: ~•~'d~~"~~I ORILLER:/-~"!~!~-"~5~^-
GROUND ELEVATION: L}'°!•S BORING: q8-8~ DRILLING ~'`~e~
TOP OF CASING ELEVATION: ~~~`~- Z DATE: ~1~~143 A~ETH00: -+lella„=,:e,,,, ~.,`ef~
u ~ ,L~~
FIELD GEOLOGiST~ DEVELOPMENT ! 1 /~`
MErrloo:
~" ~~ ~
'~"
GROUND
ELEVATION: (" }(vl•S ELEVATION TOP OF SURFACE CASING:
-
R
.{
Z "
I ~
te
_
ELEVATION TOP OF RISER:
TYPE OF SURFACE SEAL: ('r'.v~o,.'c yT~i+-
J
TYPE OF SURFACE CASING: Seel
I.D. OF SURFACE CASING AND LENGTH: ~~
DIAMETER OF HOLE AND DEPTH: 8
TYPE OF RISER PIPE: ~~,P~G„!e 4o FJL
RISER PIPE I.D.: "' I
TYPE OF BACKFILL/SEAL AND DEPTH ~~^~~•~!•~~ ~~ ~~-'~°^~'~
~_DS J

TOP OF ROCK DEPTH/ELEVATION TOP OF BEDROCK: ~ P2.G~r`I'"°^^- GI,"I'eS
~ TJ.
6
9
7~
~
\
~ /
~ t
~ I
i,~`~/`~/
~\~\\ /~~~/F~ WELL SCREENED IN SOIL OR ROCK:
~
~
.
NOTES: -"nsr~ ;;.-,n'ol~l -~^,v~2 ... .~
'' d l=R~~
~=.4 ~.~ -7GIe San
/ SPCf S~i ba ~. !n . 7 J .sn-w!~
DEPTH/ELEVATION IS b4' `'

STATIC WATER LEVEL
(APPROXIMATE)
TYPE OF SEAL AND DEPTH: i~e.~-!o" ~~' CGS,, p5

~/,
~i i
DEPTH/ELEVATION TOP OF SAND: 3~
,
//~ !! //
TYPE OF SAND PACK AND DEPTH: 10' ZC S.~/Cti. ~"~y g~}'-/~J
v
\~~ ;\\~~ DEPTH/ELEVATION TOP OF SCREEN: ~O
TYPE OF SCREEN: PJG~ ! '~ Scl~g.C~lr_ =U 0
- SLOT SIZE X LENGTH: ZO %i'~+
- ~
v
-
- DIAMETER OF HOLE IN BEDROCK AND DEPTH:

~j~
~%
-_ ~/\;
~ ,
DEPTH/ELEVATION BOTTOM OF SCREEN: ~~
~
/ DEPTH ELEVATION BOTTOM OF SAND:
b
~
~/\ _
~ v DEPTH/ELEVATION BOTTOM OF HOLE: G9
\/~\~\ ~~\~~\\/~ BACKFlLL MATERIAL BELOW WELL: b"`+k
~I
a