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Rifle Gravel Pit#1 July 2023 <br /> EARTHWORK QUANTITY ESTIMAX TABLE p <br /> FEATURE ACRES (y) I CL1.YD. (CLIT/FILL TYPE) a1 NOIM ! S�- <br /> PROPERTY AREA --58.70 (2,557_174) I------N/A------ -- I PROPERTY BOUNDARY SURVEYED BY SGM, NOTED IN A SURVEY MAP DATED 12/13/2019. SEE SHEET 4 FOR AN EXISTING CONDITIONS MAP. a±� <br /> ------------------------ -------- -------------------------------------------------------------------------------- m <br /> PERMITTED AREA 19.63 (855,209) I N/A I BOUNDARY CONTAINING ALL AFFECTED LANDS AND AN ISOLATED 0.63 ACRE (27,386 SF) WETLAND AREA THAT WILL NOT BE AFFECTED. O <br /> ---------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> AFFECTED LANDS (L_DA) MOO (827.640) I N/A I ALLOWABLE AREA FOR DISTURBANCE AND MINING RELATED ACTIVITIES (ALSO SHOWN AS "L.DA" IN PLANS). SEE SHEET 5. �Nri E <br /> (A.KA PERMITTED AREA MINUS THE 0.63 ACRE ISLAND) t, <br /> OVERBURDEN REMOVAL P1 11,18 (486,834) I 42,267 (CUT, 30- SOIL) I AVERAGE DEPTH OF CUT ASSUMED AT 3 FT.. GEOTECHNICAL ENGINEER'S BORINGS SHOW OVERBURDEN DEPTH VARIES I - 7 FT ACROSS SITE x avp $ <br /> 11,844 (6" TOPSOIL) AND APPROXIMATELY 0.5 FT OF THE OVERBURDEN COMPRISED OF TOPSOIL. � ��O T <br /> BERMS P1 2.87 (125,017) I 11,528(FILL, 08 SOIL) I BERMS TO PROVIDE NOISE AND VISUAL BARRIER. SEE DETAIL A/6 ON SHEET 6. THIS WILL BE RECLAIMED AS AN UPLANDS AREA. s Q'j E <br /> UPLAND RECLAMATION AREA P1 (BERM) 2.87 (125.017) ( 2,305 (FILL, TOPSOIL) I UPLAND DISTURBANCE (PER GARFIELD COUNTY LUDO 7-1002.H.2) REVEGETATED WITH UPLAND SEED AND PLANTING MIX (TABLE 1). tN <br /> ---------- ----------------------------------------------------------------------------------------------------------------------------------------------- <br /> ao m o <br /> 2.305 (FILL, TOPSOIL) I LEAVING 30,423 CY OVERBURDEN AND 9,539 CY TOPSOIL TO REMAIN (533 CY TO BE USED ON GREENBELT RESTORATION r CO rn <br /> EST STRAW WATTLE P1 7.800 LF <br /> ---------- ----------------------------------------------------------------------------------------------------------------------------------------------- <br /> OPERATIONS AREA P2 1.86 (80.967) { 2,999 (FILL, CL 6 IMPORT)I SCALE HOUSE, FUEL STORAGE. PARKING, AND OFFICE. CONSTRUCTED AS I FT OF CDOT CLASS 6 ROAD BASE IN <br /> MAX_ 6" LIFTS AND COMPACTED TO 95% PROCTOR DENSITY. <br /> ---------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> GRAVEL EXTRACTION AREA P3 10.03 (436,907) I 226.325 (CUT, GRAVEL) I GRAVEL EXTRACTION AREA WITHIN THE AFFECTED LANDS, ASSUMING A 31 SLOPE FOR ESTIMATION OF GRAVEL QUANTITIES. THIS IS THE QUTISDE <br /> PERIMETER OF THE GREENBELT (9.70 + I GREENBELT WIDTH OR 0,33 AC) O 100% COMPLETE 136 <br /> -30% COMPLETE VOL 3,67 AC (159.865 SF) I -70,000 CY (CUT, GRAVEL) I MINED AREA AND VOLUME, ESTIMATE AT 30% COMPLETE, SEE SHEET 6. <br /> -60% COMPLETE VOL 5.58 AC (243,065 SF) I -140,000 CY (CUT, GRAVEL) I MINED AREA AND VOLUME, ESTIMATE AT 60% COMPLETE, SEE SHEET 7. <br /> -------------------------------------------------- -----_-_------------------------------- <br /> ;1t <br /> GREENBELT AREA P3-4 (FULL WIDTH) 0.66 (28,750) I 533 (FILL, TOPSOIL) I POND GREENBELT RECLAIMED WITH 0.5 FT OF TOPSOIL GENERATED FROM P1 OVERBURDEN REMOVAL WITHIN AFFECTED LAND <br /> (USE D.33 FOR TALLYING TOTALS BELOW, HALF THE GREENBELT WIDTH) (PER GARFIELD COUNTY LUDC 7-1002.H.2) AND REVEGETATED WITH WETLAND SEED AND PLANTING MIX (TABLE 2), <br /> ----------------------------------------------------- ----------------------------------------------------------------------------------------------- <br /> RECWMED POND SURFACE AREA P4 9.70 (416,162) I N/A I POND WATER SURFACE AREA AFTER COMPLETION AND RECLAMATION OF GRAVEL MINE IN AFFECTED AREA, <br /> ---------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> PERIMETER RETURN TO NATIVE P4 3.54 (154.202) I N/A I PERIMETER OUTSIDE MAIN IMPACT AREA RETURN / SEED WITH UPLAND MIX � QD O <br /> OPERATIONS PAD FROM P2 1,86 (80.967) C tL (0BERM AREA (BERM TO GREENBELT) 3.57 (155,509) T <br /> WETLAND ISLAND lRESERVEO AREAL 0.63 f27 g4,)) 00 <br /> I. THE RIFLE PIT LOCATION WILL HAVE A STORMWATER PERMIT THAT WILL BE IMPLEMENTED DURING MINING IHC SCOTT, INC. 0 N <br /> (Z Z d <br /> TOTALS 19.63 (855.209) -SEE SHEET 16 FOR MAP OF THESE ACREAGES- WILL FOLLOW ALL REQUIRED PERMIT GUIDELINES AND REGULATIONS. 0 <br /> 1 1. WEEKLY AND MONTHLY INSPECTIONS WILL BE CONDUCTED PER PERMIT REQUIREMENTS; INSPECTION DOCUMENTATION 0 <br /> WILL ALWAYS BE MAINTAINED AND AVAILABLE AT THE ON-SITE SCALE HOUSE. <br /> RECLAMATION AND REVEGETATIQN: U U ti � <br /> 1_ ALL RECLAMATION SHALL PROCEED ACCORDING TO GARFIELD COUNTY LUDC SECTION 7--1002.H `GRAVEL MINE 2. EARTHEN BERMS AROUND THE PROPERTY, AS IDENTIFIED ON THE PLANS, WILL BE BUILT PER DETAIL A/6 ON SHEET 6, = N C <br /> EXTRACTION - RECLAMATION._ COMPACTED IN PLACE, AND REVEGETATED. _ Lo <br /> 2.1. THE BERMS WILL BE SEEDED AFTER CONSTRUCTION ACCORDING TO THE UPLAND PLANTING AND SEED MIX (TABLE I). <br /> -2. THEALL STORM RUNHIN ACTIVE MINING AREAS- <br /> 2. SEEDING SHOULD OCCUR IN LATE-FALL TO PREVENT SEEDS FROM GERMINATING IN SUMANER/EARLY-FALL AND 2.3. TOPSOIL�STOCKPILE WILL BES WILL ALSOT AIN STABLIZEO AND EROONNCONTROL PROVIDED. <br /> DESICCATING, AS WELL AS TO PREVENT SEEDS FROM FREEZING IN WINTER. <br /> 3. FUEL STORED ON-SITE WILL BE CONTAINED IN A DOUBLE-WALL TANK IN ACCORDANCE WITH STATE REQUIREMENTS. THESE vl m <br /> 3. DRILL SEEDING WILL BE UTILIZED THROUGHOUT THE PROJECT LIFETIME, EXCEPT WHERE HAND-PLACEMENT IS STANDARDS WILL MEET THOSE IN THE SITE-SPECIFIC SPCC PLAN TO BE DEVELOPED AND STAMPED BY A LICENSED m 'rc <br /> NECESSARY (E.G. CONTAINERIZED WETLAND STOCK). BROADCAST SEEDING (OR HYDROSEEDING) WILL BE USED ONLY PROFESSIONAL ENGINEER. <br /> AS NECESSARY FOR SPOT COVERAGE IF DRILL-SEEDING IS IMPRACTICAL IN ISOLATED AREAS. 3A, THE TANKS AND STORAGE AREA WILL BE INSPECTED WEEKLY AND OBSERVATIONS LOGGED IN ACCORDANCE WITH STATE <br /> REGULATIONS. n + N <br /> 4.. SEEDING SHOULD BE APPLIED IN CONCERT WITH A STERILIZED HYDROMULCH TO STABILIZE SOIL SURFACES UNTIL 3-2. SEE DETAIL K/13 ON SHEET 13 FOR A TYPICAL DETAIL OF A SPILL PREVENTION AND CONTAMINATION CONTROL (SPCC) <br /> GERMINATION COMMENCES WHILE REDUCING WEED ESTABLISHMENT. CONCRETE PAD, I <br /> 5. SEEDING MATERIAL AND APPLICATION RATES TO BE USED FOR RECLAMATION SHALL BE AS LISTED IN TABLES I AND ESTIMATED CONSTRUCTION SCHEDULE <br /> 2 FOR DRILL SEEDING. APPLICATION RATES S14OULD BE DOUBLED FOR BROADCAST OR HYDROSEEDING SEEDING. m cs z z o o e <br /> AUG/SEP 2023 (PHASE 1) - START OF SITE PREP (LDA STAKING, OVERBURDEN REMOVAL, AND BERM CONSTRUCTION). ' � LL <br /> TABLE 1 - UPLAND SEEDING AND PLANTING MIX SEPT/OCT 2023 (PHASE 2) - FINAL VEGETATION REMOVAL IN LDA, BUILD OPERATIONS PAD E �° w - ' o <br /> NOV 2023 - DECEMBER 2026 TO 2028 (PHASE 3 AND 4) - MINING OPERATIONS do CONCURRENT RECLAMATION (LIFE OF WE j J <br /> % COMMON NAME 21k MINE ESTIMATED AT 3-5 YEARS). <br /> a <br /> 15 ORCKARD GRASS DACTYUS GLOMERATA AS LOCALLY AVAILABLE BUNCH 2.3 <br /> 15 WESTERN WHEATGRASS PASCOPYRUM SMITHH AS LOCALLY AVAILABLE SOD-PORM6NG 2.7 B <br /> 15 TIMOTHY PAI MI PRATENSE AS LOCALLY AVAILABLE BUNCH 2.7 jab N. 2019�341,002 <br /> 40 MEADOW BROME BROMUS BIESERSTEINAI AS LOCALLY AVAILABLE BUNCH 7.2 D'.w b: RPF <br /> 15 INTERMEDIATE WHEATGRASS THINOPYRUM INTERMEDKri1 AS LOCALLY AVAILABLE BUNCH 2..7 Daft. 07,17Y2023 <br /> - RUBBER RA88ITBRU51! ERICAMEMA NAUSEOSA w1LOLAND COLLECTED SEED BUNCH OG5 OC ABFI PF RPF <br /> Fie- R UPx-NNex <br /> TABLE 2 - WETLAND SEEDING AND PLANTING MIX Title. <br /> Z._.d 7.AYQI`+-,IiAI&__ a,IwLEC{jJ)LO, VaLARLF) FORM PLS (LBS/ACRE)# Notes&Earthwork <br /> -- SPEARLEAF RABBITBRUSH CRICAMERIA LINIFOLIUS WK.DLAND COLLECTED SEED SHRUB 0.05 QUHT1Ut Estimates <br /> -- COYOTE WILLOW SAUX EXIGUA CONTAINERIZED STOCK (60 IW) SHRUB I CONTAINER (60 IoP) Y <br /> PER 5 SO.FT. <br /> -- BALM RUSH JUNCUS BALTICUS AS LOCALLY AVAILABLE SOD-FORMING 0.6 _ <br /> -- NEBRASKA SEDGE CARER NEBRASCENSIS AS LOCALLY AVAR.ABL£ SOD-FORMING 1.6 'we N., <br /> -- BEAKED SEDGE CAREX ULTRICULATA CONTMNER12CO STOCK (10 IN}) RHIZOMATOUS I CONTAINER (10 IMF) <br /> PER 3 SO. FT. <br /> CLUSTERED FIELD SEDGE CARE% PRAEGRACIUS AS LOCALLY AVAILABLE SOD-FORMUNG 1.2 <br /> -- CHAIRMAKER'S BULRUSH SCHOEHOPLECTUS AMERICANUS CONTAINERIZED STOCK (60 INI) RHIZOMATOUS 1 CONTAINER (60 IMT) <br /> PER 3 SO. FT. '6 <br /> Figure 14. Exhibit E1 - Earthwork Quantities and Reclamation Seeding and Planting Information <br /> 36 <br />