PERMFILE45089

• Permit No: M2004067
• IBM Index Class Name: Permit File
• Doc Date: 10/24/2005
• Doc Name: Exhibit C-2B: Processing Plant Area
• From: Banks and Gesso
• To: DMG
• Media Type: M
• Archive: No

ISECTION A - I SE _ \ \ / i / / \ \ \ \ \ DIVERSION DITCH
/■ � .. (� , , , � J� ,, � , � � I ! � -\ / / \ \ � _ - - � \ \ � \) HAUL ROAD
/ I ♦ / I ` - - - - . DIVERSION DITCH A. PERMANENT 4' TO 6' WIDE 2' TO 25' DEEP,, - \ \ y5a - 25' BENCH (IYP. FOR SW WALL)
UNDISTURBED AREA DIVERSION DITCH. WH�RE DITCH I5 NOT \ \ / / / \ I - - S` _ _ 50' FACE (TYP. FOR SW WALL)
EXCAVATED IN ROCK, LINE WITH 12" MEDI^
DIAMETER RIPRAP
OVERALL SLOPE
I
\,
l I \
■ \\ v` \ \ \ \ \ - BUILD WASTE ROCK,
\ \ PILE UPSLOPE INITIAL LOCATION FOR
�■ � 3 EXCESS CUT MATERIAL
FRO PRO AREA745
` �0\ \ M PROCESSING \
■ \\ \ 1 11 \ \ >�> I / \/ // SCALE AOU�E OFhCE
ACCESS ROAD
NOMINAL ELEVATION 7200 DIVERSION DITCH B
TYPICAL SECTION ACROSS PROCESSING PLANT AREA
NOT TO SCALE
?RY 48" mIAME 11ER CULVERT \ \ i RIPRAP LINED EMERGENCY SPILLWAY L (LENGTH) -
\ \ \ > OF
S C
■ - -�$ - ` \ } '' t \ \ \ \ \•. \ \ OPFS / % PRODUCT STOCKPILES
- < OCE55ING PLANT AND PRODU EC�ION B -2
AND PROCESSING PLANT \ \ 1 (P) D (DEPTH)
1 ' \ \ \\ STOCKPILE AREA
■ UNDERDRAIN OF COARSE 6" MEDIAN " \ APPROX. 4 ACRES AT 7200 - T. ELEV.
REA EXCA
DIAMETER ROCK WITH LESS THAN IOX �' - \\ EXCAVATED AND EXCESS CUT MATERIAL PLACED IN
PASSING THE #200 SIEVE IN THALWEG l ��� y, TEMPORARY WASTE ROCK PILE) ^ - DIVERSION DITCH B PERMANENT 6' WIDE 3' DEEP
■ TO CONVEY SUBSURFACE FLOWS / GJ� \ \ UNDISTURBED AREA DIVERSION DITCH j EPHEMERAL CHANNEL
_ - STOCKPILED ROCK (TEMPORARY)-
AND WASTE ROCK (PERMANENT) _ \
TO BE DUMPED AND MOVED FROM
■ HAUL ROAD BY DOZER OR LOADERS..
I _
400
TEMPORARY SEDIMENT POND B
3 7375-
PRINCIPAL SPILLWAY (CONFIGURATION MAY VARY)
D (DEPTH)
W(WIDTH)
RIPRAP SPILLWAY
/1 ,
0.8
OVERALL SLOPE
SEDIMENT POND
DEPTH
WIDTH
A
2'
10'
B
2'
10'
C
3'
25'
TYPICAL SPILLWAY
AREA
NOTES:
1. POND CONFIGURATION MAY VARY AS MINING PROGRESSES,
2, CONSTRUCT PRINCIPAL SPILLWAY RISER PIPE OR OTHER
WATER QUALITY CONTROL OUTLET WITH ORIFICES TO
ALLOW WATER ABOVE SEDIMENT LEVEL TO DISCHARGE IN 72
HOURS.
SEDIMENT POND
LENGTH
WIDTH
AVERAGE DEPTH
*VOLUME
"'EMERGENCY
SPILLWAY FLOW
A
55'
30'
8.0'
13,100 FT
2.2 CFS
B
65'
65'
85
54,900 FT
15.6 CFS
C
100'
130'
17'
193,000 FT
59.5 CPS
I \ CAPACITY R,20GET - - - _ _ - 3 \ \ t \ \ \ RIPRAP PAD AT TOE * 10 -YEAR / 24 -HOUR RUNOFF
- - _ = , �ON 7-350 \ \ \ \ \\ \\ \\ \ \ OF SPILLWAY " 10 -YEAR / 24 -HOUR RUNOFF (TEMPORARY)
■ \ \ \ \ \ \ \ \ \ \\\ _ - , ; . 5� 3 \ \ \ \ `\ \\ \ \\ 1} PRELIMINARY SEDIMENT POND PROFILES
OVERALL SLOPES IN THIS
\ \ \ AREA NO GREATER THAN 1.25VIH
1' HIGH, 3' WIDE BERM5 TO PREVENT PIT FLOOR RUNOFF FROM ENTERING DIVERSION
AREA OF DISTURBANCE \ g
F'OR PROCESSING PLANT \ TEMPORARY 48" DIAMETER CULVER \ \ \ \ V MIN. FREEBOARD
AREA-CONSTRUCTION ) O� \ I \ \
0 MEN=
•',',,, '. I AIN ACCESS R6 EXISTING .3 M RIPRA" Afl V�HERE DIVERSION
\
dbl\NS CHANNEL B
INTERNAL HAUL ROAD TO i \\ / \'
- -- D}Ht7 -- FiU - _ O TEMPORARY WAS rt CK YH- i �/ >
STQRAGE AREA ` \ \ \ \\ \ - - - - - - - - - 1' MIN. FREEBOARD -
_ ----------------------------- '� _ TEMPORARb SE`DIMENTPOND C P� \ 1 \ \ Sg \ _ - - - - - - - - - - - -
- CAP CI 220,000 FT3 \ \ \ \ H
- - - -' d
-- - - ---- - - __r i - -_ ( SPILLWAY VATION < 10' ... \ I \ \ cz� 1 \
- ---
SF�R M STREAM BED) y \ J \ \ \ \ \ \ \
LEGEND v a \ \
PERMIT BOUNDARY 3`.
o' / �� v v v B
�•� � ' _- -\ �� `� - __ � / �
MINING LIMITS ` S- \` q3� ��
RIGHT OF WAY S OtiL SF
PAVED ROAD
-------------------------- - -- UNPAVED ROAD
_...- ...- ...- .- . -...- DITCH /WATERWAY -...` 1 \ \ \\\ �\
NOTES:
} - - - - - - DIVERSION DITCH 1. PROCE55ING PLANT AREA AND INTERNAL HAUL ROAD WILL BE CONSTRUCTED AT THE SAME
> FLOW DIRECTION \ \ �`� \ ` - - TIME AS THE MAIN ACCESS ROAD. A 3' MINIMUM HEIGHT (OR AS REQUIRED BY EQUIPMENT)
S - BERM WILL BE CONSTRUCTED ON THE EDGE OF ALL ROADS WHERE IT I5 POSSIBLE FOR TRUCKS
EXISTING INDEX CONTOUR \ \ _ -11 TO RUN OVER EDGE.
\ \ \ 2. WASTE ROCK WILL BE MOVED BACK TO PLANT AREA FOR PROCESSING AFTER PLANT IS
x
EXISTING INTERMEDIATE CONTOUR
CC \ } \ \ CONSTRUCTED.
PROPOSED INDEX CONTOUR
\ _ 3. APPROXIMATELY 826,000 CU. YD. OF MATERIAL WILL BE EXCAVATED FROM PROCESSING PLANT
EXISTING 6'X8' CONCRETE \' \ \�� r\ - \\ \\ \ AREA AND HAUL ROAD CONSTRUCTION.
PROPOSED INTERMEDIATE CONTOUR BOX CULVERT - \ �- \ \
� \ \� _ �� \ 4. WASTE ROCK PILE FOOTPRINT WILL BE STRIPPED OF SOIL, VEGETATION AND SNOW OR ICE
DOWN TO STABLE BEDROCK PRIOR TO PLACING WASTE ROCK. THE USEABLE SOIL WILL BE
EXISTING STRUCTURE GRAPHIC SCALE /� \ \ \ \ \ \ "� \ I I I\ \ \ qy ` \ ` STOCKPILED FOR USE IN REVEGETATION. A GEOTECHNICAL INVESTIGATION WILL BE
\ \ \ '�\ COMPLETED BEFORE WASTE ROCK PLACEMENT TO DETERMINE SLOPE STABILITY. BEMICHING OF
ioo
IF IF IF IF IF SILT FENCE o so w THE SUBGRADE WILL BE COMPLETED IF REQUIRED FOR WASTE ROCK PILE STABILITIY.
\ \ \ I I S
STREETLIGHT Permit #: / - Confidental ?:
(IN PROXIMITY TO AFFECTED LAND) \ \ \ I \ \ \ s: Clas
( IN FEET) \ \ \ \ \ Type-Seq.:
OHU OHU OVERHEAD UTILITY 1 inch = 100 ft \ - - \ \ \ \ S \ _ _ _ From: $ To:
\ '.\ .\ \ � \ _ _ Doc. Name:
CONTOUR INTERVAL = 5' Doc. Date (if no date stamp):
5 5 SEWER LINE (UNDER CONSTRUCTION) \ \ \ \ \ \ Specialist: T5-
(FINAL DESIGN AS REQUIRED BY CDPS PERMIT)
NOT TO SCALE
DITCH B CROSS SECTION
ADJUST ALIGNMENT AND /OR
HEIGHT (H) 50 THE DEPTH (d)
FLOWS IN COMPETENT ROCK
DITCH A CROSS SECTION
CHANNEL
SECTION
B
(ft)
H
(ft)
SLOPE
(ft /ft)
CAPACITY
(ft')
d
(ft)
V
(fps)
B -1
6.0
3.0
0.0702
218
1 2.0
12.1
B -2
6.0
3.0
1.78
WATER FALL EFFECT
B -3
6.0
3.0
0.0192
114
1 2.0
1 6.33
8-4
6.0
3.0
0.200
368 1
2.0
1 20.4
CHANNEL
SECTION
B
(ft)
H
(ft)
SLOPE
(ft /ft)
CAPACITY
(ft3)
d
(ft)
V
(fps)
A -1
1 4.0
2.0
1 0.0581
39.7
1.0
7.2
A -2
1 4.0
2.0
1 0.438
109
1.0
19.8
A -3
6.0
2.5
0.0266
79.2
1.5
6.4
A-4
6.0
2.0
0.413
152
1.0
20.2
A-5
6.0
2.0
0.143
1 91.5
1.0 1
12.2
A -6
1.0
25.0
0.198
1 94.8
1.0 1
12.6
TYPICAL DIVERSION DITCHES
NO SCALE
NOTES:
1. BASE WIDTH AND CHANNEL HEIGHT ARE MINIMUM VALUES.
2. SIDE SLOPES 1.5:1 MAXIMUM.
3. CUT CHANNEL DEEPER IF REQUIRED TO REACH COMPETENT ROCK
4. WHERE DITCH IS NOT LOCATED ON COMPETENT ROCK, OVER EXCAVATE AND PLACE FILTER
FABRIC, IF REQUIRED, AND PLACE 24" THICKNESS OF 12" MEDIAN DIAMETER RIPRAP ON DITCH
BOTTOM AND SIDES.
PREPARED UNDER THE SUPERVISION OF:
5. SEDIMENT POND C SHOWN IS MAXIMUM SIZE REQUIRED AT THE COMPLETION OF THE 10 -YR
QUARRY. THE QUARRY OPERATOR MAY CONSTRUCT AN INTERIM SMALLER POND AT THIS
LOCATION OR OTHER LOCATIONS ON THE PIT FLOOR TO BE INCREASED IN VOLUME AS MINING
PROGRESSES.
6. SEDIMENT PONDS WILL BE INSPECTED FOLLOWING SIGNIFICANT RUNOFF EVENT AND NAME DATE
SEDIMENT REMOVED IF NECESSARY. RECEIVED
OCT 2 4 2005
TITLE
Division ■t Minerals and Geolo9Y
REVISED EXHIBIT C -213: CONSTRUCTION OF PROCESSING PLANT AREA
::BANKS AND GESSO, LLC CLEAR CREEK DISTRICT WATER PROVIDERS, LLC. MMRR QUARRY
720 KIPLING St., SUITE 117 DMG REGULAR 112 PERMIT APPLICATION
LAKEWOOO, COLORADO 80215 5460 SOUTH QUEBEC ST. SUITE 110 GILPIN COUNTY
(303) 274 -4277 GREENWOOD VILLAGE, CO 80111 COLORADO
JOB NO DATE SCALE Fl) AWN BY DESIGNED BY APPROVAL REV SHEET
03047 9/23/05 1" =100' RF 3of5