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■ .00 ago I � am 00 �--- DIVERSION DITCH A. PERMANENT 4' WIDE 2' DEEP UNDISTURBED I AREA DIVERSION DITCH. WHERE DITCH IS NOT I � EXCAVATED IN ROCK, LINE WITH 12" MEDIAN ■ 1 DIAMETER RIPRAP ■ I ■1 � ■ I♦ \ ` BUILD WASTE ROCK PILE UP5LOPE INITIAL LOCATION FOR EXCESS CUT MATERIAL FROM PROCESSING AREA I \ \ I \ I � . . . j I ` l ■ UNDERDRAIN OF COARSE 6" MEDIAN DIAMETER ROCK WITH LESS THAN 10% w I PASSING THE #200 SIEVE IN THALWEG#+ TO CONVEY SUBSURFACE FLOWS . STOCKPILED ROCK (TEMPORARY) ti ti AND WASTE ROCK (PERMANENT) j TO BE DUMPED AND MOVED FROM ■ HAUL ROAD BY DOZER OR LOADERS ` I ■ TEMPORARY SEDIMENT POND B sroF �. ;PROCESSING PLANT AND PRODU STOCKPILE AREA APPROX. 4 ACRES AT 7200 FT. ELEV. A EXCAVATED AND EXCESS CUT MATERIAL PLACED TEMPORARY WASTE ROCK PILE) 11 co \ 0 1 I \ OVERALL SLOPES IN THIS AREA NO GREATER THAN 1.25V:1H ■ ■ AREA OF DISTURBANCE FOR PROCESSING PLANT . \ AREA CONSTRUCTION ■ ■ MEMO= ■ ■ I EXISTING ROAD \ / INTERNAL HAUL ROAD TO TEMPORARY WASTE ROCK - - 0� - -- - - - - CY ilJ - - - - - - lJ ��itr�_�� STORAGE AREA - - -- -ate- - - -- oHU - - - - - - - - - - - - - - TEMPORARY SEDIMENT POND B dj CAPACITY 220,000 FT3 (SPILLWAY ELEVATION ( 10' s \ � _ `� FROM STREAM BED) LEGEND SF SF C OHU OHU 5 5 PERMIT BOUNDARY MINING LIMITS RIGHT OF WAY PAVED ROAD UNPAVED ROAD DITCH /WATERWAY DIVERSION DITCH FLOW DIRECTION EXISTING INDEX CONTOUR EXISTING INTERMEDIATE CONTOUR PROPOSED INDEX CONTOUR PROPOSED INTERMEDIATE CONTOUR EXISTING STRUCTURE SILT FENCE STREET LIGHT OVERHEAD UTILITY SEWER LINE (UNDER CONSTRUCTION) GRAPHIC SCALE 0 50 100 ( IN FEET ) 1 inch = 100 ft. CONTOUR INTERVAL = 5 \ tib y SCALE HOUSE OFFICE TEMPORARY 48" DIAMETER CULVERT PRODUCT STOCKPILES AND PROCESSING PLANT '< "'O 3 �G (ISTING 6'X8' CONCRETE\\\ BOX CULVERT y J H d r 1 DIVERSION DITCH B PERMANENT 6' WIDE 3' DEEP UNDISTURBED AREA DIVERSION DITCH _ i s MAIN ACCESS ROAD TEMPORARY 48" DIAMETER CULVERT RIPRAP PAD WHERE DIVERSION JOINS CHANNEL NOTE: 1.0 0.8 OVERALL SLOPE EPHEMERAL CHANNEL DIVERSION DITCH HAUL ROAD 25' BENCH (TYP. FOR SW WALL) 50' FACE (TYP. FOR SW WALL) RIPRAP LINED SPILLWAY EXISTING GROUND NOMINAL ELEVATION 7200 TYPICAL SECTION ACROSS PROCESSING PLANT AREA NOT TO SCALE ji 0.5 OVERALL SLOPE ACCESS ROAD l W (WIDTH) 1 \ D (DEPTH) RIPRAP SPILLWAY SEDIMENT POND DEPTH WIDTH A 2' 10' B 2' 10' C 3' 25' TYPICAL SPILLWAY L (LENGTH) :I f-- DISTURBED AREA DRAINAGE - - -- 1 D (DEPTH) 1(TYP.) OUTLET WORKS NOTE POND CONFIGURATION MAY VARY AS MINING PROGRESSES. SEDIMENT POND LENGTH WIDTH AVERAGE DEPTH *VOLUME * *SPILLWAY FLOW A 60' 45' 8.5' 22,900 FT 8.4 CF5 B 65' 65' 85 37,200 FT 8.1 CFS C 100' 130' 17' 220,000 FT 58.2 CFS * 10 -YEAR / 24 -HOUR RUNOFF ** 10 -YEAR / 24 -HOUR RUNOFF (TEMPORARY) OR 100 -YEAR / 24 -HOUR RUNOFF (PERMANENT) PRELIMINARY SEDIMENT POND PROFILES 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 kT THIS LOCATION OR OTHER LOCATIONS ON THE PIT FLOOR TO BE INCREASED IN VOLUMRE AS MINING S PROGRESSES. (FINAL DESIGN AS REQUIRED BY COPS PERMIT) NOT TO SCALE 'Ivft MAR 2 3 2o5 Qivision 0"'haft aft Permit #: - bµ,p(p� Confidental ?: Class: Type-Seq.: From: To- _6J�!1� Doc. Name: Doc. Date (if no date stamp):3 a3 o_s�- PREPARED UNDER THE SUPERVISION OF: TITLE REVISED EXHIBIT C -213: CONSTRUCTION OF PROCESSING PLANT AREA 00 BANKS AND GESSO, LLC CLEAR CREEK DISTRICT WATER PROVIDERS, LLC. MMRR QUARRY ..720 KIPLING St., SUITE 117 DMG REGULAR 112 PERMIT APPLICATION LAKEWOOD, COLORADO 80215 5460 SOUTH QUEBEC ST. SUITE 110 GILPIN COUNTY (303) 274 -4277 GREENWOOD VILLAGE, CO 80111 COLORADO JOB NO DATE SCALE DRAWN BY DESIGNED BY APPROVAL REV SHEET 03047 3/16/05 111 =100' DRF I 3of5 1. PROCESSING PLANT AREA AND INTERNAL HAUL ROAD WILL BE CONSTRUCTED A T THE SAME TIME AS THE MAIN ACCESS ROAD. A 3' MINIMUM HEIGHT (OR AS REQUIRED BY EQUIPMENT) BERM WILL BE CONSTRUCTED ON THE EDGE OF ALL ROADS WHERE IT IS POSSIBLE FOR TRUCKS TO RUN OVER EDGE. 2. WASTE ROCK WILL BE MOVED BACK TO PLANT AREA FOR PROCESSING AFTER PLANT IS CONSTRUCTED. <c 3. APPROXIMATELY 826,000 CU. YD. OF MATERIAL WILL BE EXCAVATED FROM PROCESSING PLANT AREA AND HAUL ROAD CONSTRUCTION. 4. WASTE ROCK PILE FOOTPRINT WILL BE STRIPPED OF SOIL, VEGETATION AND SNOW OR ICE 0 ,- DOWN TO STABLE BEDROCK PRIOR TO PLACING WASTE ROCK. THE USEABLE SOIL WILL BE \ STOCKPILED FOR USE IN REVEGETATION. A GEOTECHNICAL INVESTIGATION WILL BE COMPLETED BEFORE WASTE ROCK PLACEMENT TO DETERMINE SLOPE STABILITY. BENCHING OF O,y , THE 5UBGRADE WILL BE COMPLETED IF REQUIRED FOR WA5TE ROCK PILE 5TABILM. 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 kT THIS LOCATION OR OTHER LOCATIONS ON THE PIT FLOOR TO BE INCREASED IN VOLUMRE AS MINING S PROGRESSES. (FINAL DESIGN AS REQUIRED BY COPS PERMIT) NOT TO SCALE 'Ivft MAR 2 3 2o5 Qivision 0"'haft aft Permit #: - bµ,p(p� Confidental ?: Class: Type-Seq.: From: To- _6J�!1� Doc. Name: Doc. Date (if no date stamp):3 a3 o_s�- PREPARED UNDER THE SUPERVISION OF: TITLE REVISED EXHIBIT C -213: CONSTRUCTION OF PROCESSING PLANT AREA 00 BANKS AND GESSO, LLC CLEAR CREEK DISTRICT WATER PROVIDERS, LLC. MMRR QUARRY ..720 KIPLING St., SUITE 117 DMG REGULAR 112 PERMIT APPLICATION LAKEWOOD, COLORADO 80215 5460 SOUTH QUEBEC ST. SUITE 110 GILPIN COUNTY (303) 274 -4277 GREENWOOD VILLAGE, CO 80111 COLORADO JOB NO DATE SCALE DRAWN BY DESIGNED BY APPROVAL REV SHEET 03047 3/16/05 111 =100' DRF I 3of5