PERMFILE100508

• Permit No: C1980005
• IBM Index Class Name: Permit File
• Doc Date: 8/26/1982
• Doc Name: PROPOSED POND 004 DETAILS
• Section_Exhibit Name: TAB 07 EXHIBIT 7-13
• Media Type: M
• Archive: No

EL. 6960 -i
EL. 6950 ORIGINAL GROUND
EL. 6940
EL. 6930
EL.6920
EL.6910
EL. 6900
EL. 6980
EL. 6970
EL.6960
EL. 6950
EL. 6940
IEL. 6930
EL. 6920
r
A
2-ANTI-SEEP COLLARS
36" C.M.P x 60' LONG
PRINCIPAL SPILLWAY CULVERT
MAXIMUM WATER EL. 6944.5
ARMCO MODEL IOIC
SLUICE GATE
EL. 6938.0
CROSS SECTION A -A'
SCALE: 1"-20'
LONGITUDINAL SECTION OF DIKE
i SCALE: I " =20'
-- is
CREST OF DIKE EL. 6949.0
;L. 6946.5 — �EMER
GENCY SPILLWAY 0.05
S _= z
/ DEWATA 2 NG
ERING PIPE 1S
3 ANTI SEEP COLLARS R RI PR
ORIGINAL GROUND
OUTLINE OF EXCAVATED
UPSTREAM POND AREA
" TOE OF DIKET
3- ANTI-SEEP COLLARS
18 "C.M.P x 120' LONG DEWATERING PIPE
V
W>
v;
W3a
�JW
Way
0 j _
o W
T
EL. 6960
EL. 6950
EL. 6940
EL. 6930
EL. 6920
EL. 6910
EL. 6900
ew•
FRAMES
12 FT.
THROUGH
20 FT.
ANGLE
FRAME
10.50
22.87
THREADED
CAST IRON
CAPS
22.87
STANDARD WEIGHT
GALVANIZED PIPE
THREADED BOTH
ENDS
GALVANIZED
/ANGLE BRACE
ARMCO MODEL 101 C
SLUICE GATE, SPIGOT BACK DETAILS
NOT TO SCALE
ENGINEER'S CERTIFICATE
Plans and modifications of this sediment control structure
have been designed and prepared under m� direction.
n ,
1�d M. Ea�t- Colorado P.E. 17274
Curtis M. Belden
Da to
I. .
r
EXHIBIT "7 -13"
eROPOSED POND 8004
DETAILS
SENECA II MINE
SENECA COAL LTD. 12015 E. 461h AVE. DENVER COLORADO 80239
DESIGNED BY, J. SCHLENVOGT SCALE: AS SHOWN
DRAWN BY: B. WOLF CHK'D BY A. DATE- 10/15/60
REVISIONS
8/9/82 WTC. aUS
Il�lul�llll�lllll�l�lllllllll�lll �
111105R11 i
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GMEK NOTES:
1.
CONSTRUCTION TO BE COPIPLETE BEFORE DISTURBING UPSTREAM DRAINAGE AREA,
2.
PONDS AND DAMS CONSTRUCTED AFTER MAY 3, 1978 TO BE DESIGNED, INSPECTED,
AND CERTIFIED BY A REGISTERED PROFESSIONAL ENGINEER.
3.
ALL ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL. ALL DIMENSIONS IN FEET
AND INCHES Q METER = 3.2c n c3`333 FEET).
_ -- ._— - _ - -- _ -- _ -- _ - -
---- --- . S° SQ.IL %< 1`.... :: l ; ! wAY (,Irr tjATFgIAL Eop P' AcFMFIJT .OI _ TOC P 1� 1 I FS=
5,'
SEED ALL DISTURBED AREAS, FILLS, AND CUTS.
EL.6980
6.
ALL PONDS AND DAMS TO BE EXAMINED FOR STRUCTURAL WEAKNESS, EROSION,
AND OTHER HAZARDOUS CONDITIONS, AS PER APPROVED PLAN.
D EL. 6970
7,i
SEDIMENT TO BE REMOVED IF IT FILLS 69% OR MORE OF THE POND DESIGN
I
CAPACITY.
EL. 6960
8
ALL DAMS TO BE GRADED TO APPROXIMATE ORIGINAL STREAM PROFILE UPON
��
Pl
ACCEPTANCE BY STATE OF SATISFACTORY MINED LAND RECLAMATION,
r1 iR/;
_ EL. ssSO
9.,
ALL PONDS SUBJECT TO REVISION — SITE STUDIES AKD MORE DETAILED
EL. 6940
ANALYSES THROUGHOUT LIFE OF MINE TO BE REFLECTED IN POND DESIGN.
I
10.,
THE FILL MATERIAL SHALL BE FREE OF SOD, LARGE ROOTS, OTHER LARGE
EL. 6930
VEGETATION MATTER., AND FROZEN SOIL, AND IN NO EASE SHALL COAL —
PROCESSING WASTE BE USED IN EMBANKMENT CONSTRUCTION. THE FILL
EL.69zo
MATERIAL SHALL CONSIST OF SELECT IMPERVIOUS MATERIAL.
11.
THE PLACING AND SPREADING OF FILL MATERIAL SHALL BE STARTED AT
THE LOWEST POINT OF THE FOUNDATION. THE FILL SHALL BE BROUGHT
UP IN HORIZONTAL LAYERS LESS THAN 12 INCHES IN THICKNESS AND
i
COMPACTED OVER 90% OF STANDARD PROCTOR.
Permit Number #: C- 1980 -005
Class: Permit
Section /Exhibit:
ENGINEER'S CERTIFICATE
Plans and modifications of this sediment control structure
have been designed and prepared under m� direction.
n ,
1�d M. Ea�t- Colorado P.E. 17274
Curtis M. Belden
Da to
I. .
r
EXHIBIT "7 -13"
eROPOSED POND 8004
DETAILS
SENECA II MINE
SENECA COAL LTD. 12015 E. 461h AVE. DENVER COLORADO 80239
DESIGNED BY, J. SCHLENVOGT SCALE: AS SHOWN
DRAWN BY: B. WOLF CHK'D BY A. DATE- 10/15/60
REVISIONS
8/9/82 WTC. aUS
Il�lul�llll�lllll�l�lllllllll�lll �
111105R11 i
t
i' ,