2022-04-20_REVISION - M2021052

• Permit No: M2021052
• IBM Index Class Name: Revision
• Doc Date: 4/20/2022
• Doc Name: Request For Amendment To Permit
• From: IHC Scott, Inc
• To: DRMS
• Type & Sequence: AM1
• Email Name: CCW
• Email Name: THM
• Email Name: SMS
• Email Name: AWA
• Media Type: D
• Archive: No

Rifle Gravel Pit #1
April 2022
PROPERTY AREA 58.70 (2,587.174) 1 N/A O
PROPERTY BOUNDARY SURVEYED BY SCAM, NOTE- N A SURVEY MAP DATED ---- - - SEE SHEET 4 FOR AN DOSTN CONDITIONS MAP.
CONDITIO MAP. '�r
--------------------------------
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PERMITTED AREA 19.63 (855,209) 1 N/A I BOUNDARY CONTAINING ALL AFFECTED LANDS AND AN ISOLATED 0.63 ACRE (27,388 SF) WETLAND AREA THAT WILL NOT BE AFFECTED. �OU
--------------------------`----�- --- N/A _ __ __ _ _ ____ _ _ _ ___----------------------------------------------------
AFFECTED LANDS 19.00 827.822 ( ALLOWABLE AREA FOR DISTURBANCE AND MINING RELATED ACTIVITIES (ALSO SHOWN AS %W IN PLANS). SEE SHEET 5. - ------ � � g
(AKA. LIMITS OF DISTURBED AREA) c
- OVERBURDEN REMOVAL 13.17 (573.862) 63,762 (CUT, SOIL) 1 AVERAGE DEPTH OF CUT ASSUMED AT 3 FT. GEOTECHNICAL ENGINEER'S BORINGS SHOW OVERBURDEN DEPTH VARIES 1 - 5 FT ACROSS SITE
AND APPROXIMATELY 0.5 FT OF THE OVERBURDEN COMPRISED OF TOPSOIL. MUCH OF THIS AREA WILL BE MINED BUT THE WETLAND SLOPE (n
E
AREA WILL BE RECLAIMED PER GARFIELD COUNTY LUDC 7-1002.H.2. � pp
- BERMS 3,90 (169,679) 1 14,555 (FILL, SOIL) 1 BERMS TO PROVIDE NOISE AND VISUAL BARRIER. SEE DETAIL A/6 ON SHEET 6. THIS WILL BE RECLAIMED AS AN UPLANDS AREA. (D
I C- OPERATIONS AREA 1.93 (84,282) 3.037 (FILL CL 6) 1 SCALE HOUSE, FUEL STORAGE. PARKING, AND OFFICE. CONSTRUCTED AS 1 FT OF CDOT CLASS 8 ROAD BASE IN ��CD
__---_ MAX. 6-LIFTS AND COMPACTED TO 95% PROCTOR DENSITY.
--------------------------------- ---------------------------------------------------------------
GRAVEL EXTRACTION AREA 12.30 (L939.514) 1 202.810 (CUT. GRAVEL) 1 GRAVEL EXTRACTION AREA WITHIN THE AFFECTED LANDS, ASSUMING A 3:1 SLOPE FOR ESTIMATION OF GRAVEL QUANTITIES.
(1DOR COMPLETE) O
30% COMPLETE 3.72 (161,854) 87,843 (CUT, GRAVEL) MINED AREA AND VOLUME, ESTIMATE AT 30% COMPLETE. SEE SHEET 6.
- 60% COMPLETE 7.43 (323_700) - 1-_-- 175,686 (CUT, GRAVEL) 1 MINED AREA AND VOLUME, ESTIMATE AT 60% COMPLETE. SEE SHEET 7.
-------------------------- --- -------------------------------------- `6
ROAD BASE FOR WORKING AREAS 15.11 (6SB,144) 1 6.094 (FILL, COOT CL 6) 1 TOTAL AMOUNT OF ROAD BASE (MIN. 3'THICK) REQUIRED TO ESTABLISH WORMING SURFACE FOLLOWING OVERBURDEN REMOVAL IN THE
WITHIN AFFECTED LANDS
w AFFECTED LANDS. QUANTITY ESTIMATED FROM REQUIRED AREA FOR OPERATIONS AREA PLUS OVERBURDEN REMOVAL AREA
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UPLAND RECLAMATION AREA 3.90 (169.679) 1 2,390 (Flu, TOPSOIL) 1 UPLAND DISTURBANCE (PER GARFIELD COUNTY LUDC 7-1002.H.2) REVEGETATED WITH UPLAND SEED AND PLANTING MIX ABLE 1).--------------------------------------- ____ _ ____ �.
toy wETLAND RECLAMATION AREA 0.70 (34.348) 1 637 (FILL, TOPSOIL) 1 POND WETLAND SLOPE RECLAIMED WITH 0.5 FT OF TOPSOIL GENERATED FROM OVERBURDEN REMOVAL WITHIN AFFECTED LAND
(PER GARFIELD COUNTY LUDC 7-1002.H.2) AND REVEGETATED WITH WETLAND SEED AND PLATING MIX (TABLE 2).
- -----------------------------------------------------------
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o RECLAIMED POND SURFACE AREA► 12.56 (547,034) 1 N/A 1 POND WATER SURFACE AREA AFTER COMPLETION AND RECLAMATION OF GRAVEL MINE IN AFFECTED AREA `------------------------------------------------------------------------------------------------------------------------------------------- -O
RFC MAMON AND REV MATION• EIRMON CONTRIX Nai a
v 1. ALL RECLAMATION SHALL PROCEED ACCORDING TO GARFIELD COUNTY LUDC SECTION 7-1002.H "GRAVEL MINE1. THE RI �LE PIT LOCATION WILL HAVE A STORMINATER PERMIT THAT WILL BE IMPLEMENTED DURING MINING IHC-SCOTT U 4)
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EXTRACTION - RECLAMATION.' 1.1 CONTRACTING WILL FOLLOW ALL REQUIRED PERMIT GUIDELINES AND REGULATIONS.. WEEKLY AND MONTHLY INSPECTIONS WILL BE CONDUCTED PER PERMIT REQUIREMENTS: INSPECTION DOCUMENTATION
WILL ALWAYS BE MAINTAINED AND AVAILABLE AT THE ON-SITE SCALE HOUSE.
a 2. SEEDING SHOULD OCCUR IN LATE-FALL TO PREVENT SEEDS FROM GERMINATING IN SUMMER/EARLY-FALL AND O C (�
DESICCATING, AS WELL AS TO PREVENT SEEDS FROM FREEZING IN MINTER. U O
� 2. EARTHEN BERMS AROUND THE PROPERTY. AS IDENTIFIED ON THE PLANS. WILL BE BUILT PER DETAIL A/6 ON SHEET 6.
COMPACTED IN PLACE, AND REVEGETATED AS THEY ARE CONSTRUCTED, � U
S 3. DRILL SEEDING WILL BE UTILIZED THROUGHOUT THE PROJECT LIFETIME, EXCEPT WHERE HANG-PLACEMENTS U � 0)
? NECESSARY (E.G. CONTAINERIZED WETLAND STOCK). BROADCAST SEEDING (OR HYDROSEEDING) WILL BE USED ONLY 2.2. THE BERMS WILL ALSO CONTAIN ALLMS WILL BE SEEDED STORM RUNOFF WITHINON IACTIVE MINING AREAS. AND SEED MIX (TABLE 1).
AS NECESSARY FOR SPOT COVERAGE IF DRILL-SEEDING IS IMPRACTICAL IN ISOLATED AREAS. = O
3. FUEL STORED ON-SITE WILL BE CONTAINED IN A DOUBLE-WALL TANK IN ACCORDANCE WITH STATE REQUIREMENTS. THESE (C) (Z'
4. SEEDING SHOULD BE APPLIED IN CONCERT WITH A STERILIZED HYDROMULCH TO STABILIZE SOIL SURFACES UNTIL STANDARDS WILL MEET THOSE IN THE SITE-SPECIFIC SPCC PLAN TO BE DEVELOPED AND STAMPED BY A LICENSED
GERMINATION COMMENCES WHILE REDUCING WEED ESTABLISHMENT. PROFESSIONAL ENGINEER,
3.1. THE TANKS AND STORAGE AREA WILL BE INSPECTED WEEKLY AND OBSERVATIONS LOGGED IN ACCORDANCE WITH STATE
5. SEEDING MATERIAL AND APPLJCATION RATES TO BE USED FOR RECLAMATION SHALL BE AS LISTED IN TABLES 1 AND REGULATIONS.
2 FOR DRILL SEEDING. APPLICATION RATES SHOULD BE DOUBLED FOR BROADCAST OR HYDROSEEDING SEEDING. 3.2. SEE DETAIL K/13 ON SHEET 13 FOR A TYPICAL DETAIL OF A SPILL PREVENTION AND CONTAMINATION CONTROL (SPCC)
c CONCRETE PAD. o v
IA
I a
TART F 1 - UPLAND SFFnINN± ANn pI eNTING ► IX
s - - -
L3 COMMON NAME SCIENTIFI. NAME VARIETY N
2 FORM P (Lg/gr_RF1�. ESTIMATED CONSTRUCTION SCHEDULE
20 ORCHARD CRASS DACTYLS GLQMERATA AS LOCALLY AVAILABLE BUNCH 3.6 � F �
20 WESTERN WHEATGRASS PASCOPYRUM SMITHII AS LOCALLY AVAILABLE SOD-FORMING 3.6 C
20 TIMOTHY PHLEUM PRATENSE AS LOCALLY AVAILABLE BUNCH 3,6 JULY 2022 - START OF SITE PREP (LDA STAKING. OVERBURDEN REMOVAL, AND BERM CONSTRUCTION). a` s
40 MEADOW BROME BROMUS BIEBERSTEINII AS LOCALLY AVAILABLE BUNCH 7,2
AUGUST 2022 - START OF MINING OPERATIONS AND CONCURRENT RECLAMATION AS MINING PROGRESSES.
€ T,4aLF 2 - WETLAND SEEDING AND PLAN MIX DECEMBER 2025 TO 2027- END OF MINING OPERATIONS do RECLAMATION (LIFE OF MINE ESTIMATED . Job No. 2019-3410002
a AT 3-5 YEARS). Drawn: 04M Y2022 .,RPF i
g X COMMON NAME SCIENTIFIC NAME VARIETY FORM P (JB,S/�rtFl• Datec: ABF PE RPF g
SPEARLEAF RABBITBRUSH DACTYLS GLOMERATA WILDLAND COLLECTED SEED SHRUB 0.05 o Q PoLIePtt-Niles a
-- COYOTE WILLOW SAUX EXIGLIA CONTAINERIZED STOCK (60 IN3) SHRUB 1 CONTAINER C:Title
iE -- BALTIC RUSH JUNCUS BALTICUS AS LOCALLY AVAILABLE SOD-FORMING Poe ER 5 �� Notes&Earthwork
-- NEBRASKA SEDGE CAREY NEBRASCENSS AS LOCALLY AVAILABLE SOD-FORMING 1.6
-- BEAKED SEDGE CARER ULTRICULATA CONTAINERIZED STOCK (10 INP) RHIZOMATOLIS 1 CONTAINER Quantity Estimates
PER 3 50. FT.
I -- CLUSTERED FIELD SEDGE CARD( PRAEGRACILIS AS LOCALLY AVAILABLE SOD-FORMING 1.2
p -- CHAIRMAKER'S BULRUSH SCHOENOPLECTUS AMERICANUS CONTAINERIZED STOCK (60 IN') RHIZOMATOLIS 1 CONTAINER Nj PER 3 50. FT. Dwq No.
a
2
Of 13
Figure 15. Exhibit E2 - Earthwork Quantities and Reclamation Seeding and Planting Information.
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