2011-06-17_PERMIT FILE - C1981018A ‎(4)‎

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 6/17/2011
• Doc Name: B-Seam Dewatering
• Section_Exhibit Name: Map 157
• Media Type: M
• Archive: Yes

H -3
f
A-
1 0
to \
X
I
BSe ,4 Oft' or Dewatering
77, Ponds (each)
10,400 R' or 77,800 gallons
X X
J
Scale: 1" = 100'
f,
//- Last Chan nd
% 8,600 R'_pr 64,200 gallons
WASH
`�
A Emergency
Spillway
;e
A
B
'H' FLUME
2.O'
e 2
1 r
2' AT HIGHEST PDN7 2,7' RIP KIP
/ IN EM84NKMEM
0.58' MIkJ 1 SECTION A -A
1.5
SECTION B -B
5604
_,D0S0NG GROUND /
5602 ---'�
SPILLWAY FLOW
5600
FINISHED POND DICAVA110N
°1598
5596
5594
O+00 0 +10 0 +20
4
3
2 NO GROUND
GROUND
0
-1
2
-3
0 +00 0 +10 0 +20 0 +30 0 +40 0 +50 0+60 0 +70
SECTION Y -Y'
Minimum Bottom Widths
on4rodable SglMay Overland Flow Channel: 12 feet
�WOVen geotezg1. aregwalent Comlbinaton Spillway: 5 feet
0
2'3:1 23:1
-3
SECTION Q - Q' SECTION IN - IN'
F
Water from the B -seam will be pumped through Service Hole SH -3 to the surface. This water is expected to carry excessive
suspended solids which will be treated by the settling ponds shown on this drawing. Following settling and passing through the
artificial wetlands this water will be discharged via an approved NPDES discharge point.
Designs shown are pre- construction. Slight modifications may occur during construction to better fit the structures to the natural
topography while preserving the intent and general character of the designs.
t
A minimum of two dewatering ponds will be constructed during the initial phase prior to operation. This is reflected in the 7
6 - - - -- — - —
hydrologic modeling. Four ponds are permitted. This will allow expansion, if needed, to accommodate unforeseen treatment 54
needs. 2 WIND GROUND
1 srrK GROUND
a
Artificial wetland construction may deviate from the that shown to better utilize existing topographic features. The footprint of the ;z
wetlands will occur within the area shown. The intent is to create shallow wetlands over approximately 50% of the area. The -3
0 +00 0 +10 0 +20 0430 0 +40 0 +50 0 +60 0 +70 0 +50 0 +90 0 [phone] +120 0 +130 0 +140 0 [phone]
actual extent will be dictated, in part, by the rate water is pumped from underground. Water will be distributed through a series SECTION XX
of berms and trenches. Best management practices will be used to control erosion prior to vegetation establishment.
The area will be surrounded by an exclosure fence designed to keep livestock out. This is necessary to prevent damage to the
wetlands and diversion structures associated with this facility. 43992
See Illustration 55 for detailed hydrologic modeling. oo -51 Z & I 1, 111111
POND EM6WKMINf
GROUND
FLOW
�O
4Q
A
i,
Last Chance Pond
8,600 ft3 or 64,200 gallons
LINED CHANNEL �RIpM,p ' H ' F I u m e­/
0-130 0 +40 0 +50 0 +60 I c
SECTION C-C Scale: 1" = 20' - -.�
Contour interval: 1 foot
B -Seam Dewatering Pond (typical) Scale: 1" = 20' (plan & horizontal)
(10,400 ft3 or 77,800 gallons each) Scale: 1" = 10' (vertical)
v Contour interval: 1 foot
57-
Ott-oo dS3EeN
0 +200 0 +210 0+220 0 +230 0 +240
,
'61
BLUE MOUNTAIN ENERGY, INC.
DESERADO MINE RANGELY, COLORADO
Map 157 B -Seam Dewatering
. bp. Dwg. File Name:
SCw Map 157 -B- dewatering hole.(
by. Appr. bp.
a. as noted Date. 5/10/2011 Rev. 2