2008-12-11_PERMIT FILE - C1980007A ‎(9)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: Sediment Trap and Retention Pond Detail
• Section_Exhibit Name: Exhibit 66 Pond MB-4 Appendix A Drawing 3
• Media Type: M
• Archive: Yes

CUT OR FORM RECTANGULAR EMERGENCY
SPILLWAY IN TOP OF WALL 3.5' LONG.
ELEVATION OF BOTTOM OF SPILLWAY 80.10
(0.3 FT DEEP)
-x xg
18'
6' PVC FROM
OIL SEPARATOR
6" CONCRETE PAVEMENT
CONCRETE POND
TOP OF WALL ELEV. 79.80--\
1'
- _ _ _ _ _ - - _ - 12
INV ELEV = 6077.50 �� r
I I
I i i
-Y X-I-TY % 6 1 ( % % % % e Y N Y % %
t ..
10' 30'
I I
2.5' �
k >J
8" PVC FROM TRENCH DRAIN
0
I
CLEAN OUT
CLEAN
SLOPE PIPE UNIFORMLY FROM
ELBOW TO ELEV 6077.50 AT CLEAN
OUT LOCATION NEAR ENTRY INTO
RETENTION POND
21'
SIMILAR AND EQUAL TO
J VAUGHN CONCRETE PRODUCT
F / WITH 4" ROOF SLAB
TOP OF SLAB ELEV = 80.43
67.5'
INV 8" PVC FROM TRENCH DRAIN
ELEV = 6077.50 6.5
45' 45'
LINE SHOWN ON PLAN VIEW
(SEDIMENT TRAP AND
i RETENTION POND) IS THIS LINE 2.5'
22.5'
SEDIBdEEN'P TRAP AND OIL SEPARATOR
PLAN AND PROFILE F
7
SCALE: I" = 5' 67.5 END DETAIL
TOP OF WALL 79.80
'" X -X. X X X. X %��%
THREADED PLUGS
12 "X12 "X12" TEE
8 "X8 "X8" TEE
8" PVC DISCHARGE PIPE
FROM RETENTION POND
PIPE INV ELEV = 6074.00
i.80 INV ELEV = 6079:00
1 i-INV ELEV = 6077.00
EXPOSED PIPING ADS SERIES 35
12 PIPE AND FITTINGS
1
Y Y
- 69'
[INV ELEV = 6077.00
1.
8" VALVE AND VALVE BOX CLEAN OUT
12" PVC SPILLWAY PIPE PIPE INV ELEV = 6077.50 CONCRETE POND BOTTOM
B" DISCHARGE PIPE
APPROXIMATE LEVEL OF RETAINED
TOP OF WALL ELEV = 79.80 OUTSIDE GRADE VARIES RUNOFF FROM 25 YEAR 24 HOUR STORM
i
SEE DRAVANG No. i TOP OF FLOOR SLAB
-AT -109; GRADE
u
e TOP OF FLOOR SLAB ELEV 76.00 ... S_.- ..._... ... a
,
77 b. r.
INV 6" PVC FROM OIL
INV 8" PVC DISCHARGE SEPARATOR - 6077.00
PIPE INV ELEV = 6077.00
12" SPILLWAY PIPE
OFFSET TO CLEAR 8" VALVE
PIPE INV ELEV = 6079.00
No ] DESCRIPTION I BY ICHKD.1 APPROVED I DATE
a q ISSUED FOR CONSTRUCTION 81DDING AND PERMITTING BRJ ALS MHL 7j97
s
I V) STORMWATER RETENTION PAID BRJ MHLI RLK 4j'w
0 REVISED RETENTION POND DISCHARGE PIPING BRJ MHL RLK 7j1a8
�IVM D�Y V
RETENTION POND
PLAN AND PROFILE
SCALE:
DRAWING No. DRAWING TITLE
w 1 PROPOSED AND EXISTING SITE PLAN
U 2 LOAD OUT AREA PLAN VIEW A ND SITE DETAIL
z
Iii -- -
w
w
w
ENGINEERING
MHL
LINE SHOWN ON PLAN VIEW
BRJ
7/97
TOP OF WALL ELEV = 80.40
7/97
z
CHECKED
MHL
APPROVED
o
RETENTION POD IS THIS LINE
2' DIAMETER LIGHT WEIGHT CAST IRON MANHOLE
FRAME AND PERFORATED COVERS ANCHORED IN
PLACE WITH MORTAR
OUTSIDE GRADE VARIES
CUT OR FORM HOLE IN WALL
SEE DRAWING No. I
FOR 6" SEPARATOR INLET
?
INVERT ELEV 79.55
- - -� - -
1500 GALLON OIL SEPARATOR
7 P OF FLOOR SLAB
ELEV = 77.40
TOP OF FLOOR
SLAB - e
4
_
n
r.
CLEAN OUT
CLEAN
SLOPE PIPE UNIFORMLY FROM
ELBOW TO ELEV 6077.50 AT CLEAN
OUT LOCATION NEAR ENTRY INTO
RETENTION POND
21'
SIMILAR AND EQUAL TO
J VAUGHN CONCRETE PRODUCT
F / WITH 4" ROOF SLAB
TOP OF SLAB ELEV = 80.43
67.5'
INV 8" PVC FROM TRENCH DRAIN
ELEV = 6077.50 6.5
45' 45'
LINE SHOWN ON PLAN VIEW
(SEDIMENT TRAP AND
i RETENTION POND) IS THIS LINE 2.5'
22.5'
SEDIBdEEN'P TRAP AND OIL SEPARATOR
PLAN AND PROFILE F
7
SCALE: I" = 5' 67.5 END DETAIL
TOP OF WALL 79.80
'" X -X. X X X. X %��%
THREADED PLUGS
12 "X12 "X12" TEE
8 "X8 "X8" TEE
8" PVC DISCHARGE PIPE
FROM RETENTION POND
PIPE INV ELEV = 6074.00
i.80 INV ELEV = 6079:00
1 i-INV ELEV = 6077.00
EXPOSED PIPING ADS SERIES 35
12 PIPE AND FITTINGS
1
Y Y
- 69'
[INV ELEV = 6077.00
1.
8" VALVE AND VALVE BOX CLEAN OUT
12" PVC SPILLWAY PIPE PIPE INV ELEV = 6077.50 CONCRETE POND BOTTOM
B" DISCHARGE PIPE
APPROXIMATE LEVEL OF RETAINED
TOP OF WALL ELEV = 79.80 OUTSIDE GRADE VARIES RUNOFF FROM 25 YEAR 24 HOUR STORM
i
SEE DRAVANG No. i TOP OF FLOOR SLAB
-AT -109; GRADE
u
e TOP OF FLOOR SLAB ELEV 76.00 ... S_.- ..._... ... a
,
77 b. r.
INV 6" PVC FROM OIL
INV 8" PVC DISCHARGE SEPARATOR - 6077.00
PIPE INV ELEV = 6077.00
12" SPILLWAY PIPE
OFFSET TO CLEAR 8" VALVE
PIPE INV ELEV = 6079.00
No ] DESCRIPTION I BY ICHKD.1 APPROVED I DATE
a q ISSUED FOR CONSTRUCTION 81DDING AND PERMITTING BRJ ALS MHL 7j97
s
I V) STORMWATER RETENTION PAID BRJ MHLI RLK 4j'w
0 REVISED RETENTION POND DISCHARGE PIPING BRJ MHL RLK 7j1a8
�IVM D�Y V
RETENTION POND
PLAN AND PROFILE
SCALE:
DRAWING No. DRAWING TITLE
w 1 PROPOSED AND EXISTING SITE PLAN
U 2 LOAD OUT AREA PLAN VIEW A ND SITE DETAIL
z
Iii -- -
w
w
w
BY
ENGINEERING
MHL
DESIGNED
BRJ
7/97
w DRAWN
7/97
z
CHECKED
MHL
APPROVED
o
CHECKED
BY
DATE
MHL
7/97
BRJ
7/97
ALS
7/97
MHL
7/97
MHL
4/98
RLK
4/98
INCORPORATED
8.5 MINIMUM TO
; #5 BARS ® 12"
O.C. BOTH WAYS
r"1 SECTION - POND 'PALL
SCALE; if2 = 1' -0`
12" PVC SPILLWAY PIPE
- FROM RETENTION POND
J PIPE INV ELEV = 6076.00
THREADED PLUGS
r V MIN COVER
- CHAIN LINK FENCE
�r SEE DRAWING N0. 1
FOR ELEVATIONS
° GALVANIZED STEEL SHEET PILING
3/4` EXPANSION
JOINT MATERIAL
SEE POND PLANS AND
PROFILES FOR ELEVATIONS
FACE OF EXISTING
METAL CRIBBING
8"X8"X8" AND 12'X12'X12' TEE
CENTERLINE OF PLUGS 2' ABOVE GROUND
-* \� 8" AND 12 PVC TO CDOT INLET AT 0.005 FT /FT MIN
RUN SIDE -BY -SIDE IN SAME TRENCH
RETENTION POND DISCHARGE PIPING
�� DROP SECTION DETAIL
SCALE: 3f8" = i' -0"
PREPARED FOR
MOUNTAIN COAL COMPANY
West Elk Mine
PO Box 591
Somerset, Colorado 81434
Telephone: [phone]
�- 6' PVC FROM
OIL SEPARATOR
TI TLE SEDIMENT TRAP A
RETENTION P
DETAIL , I Piy
PROJECT: 11-407 DATE: JULY 19 DRANING REVISION
AS SHOWN A�AD 11 4o7o0� 3 /C�