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Notes: - <br />1. Existing vegetation: The proposed mining area is composed of a former <br />feedlot and fallow pastureland, with degraded vegetative conditions typical <br />of unmanaged former agricultural land. Grass and forb cover, as <br />described in Exhibit J, is relatively uniform across the site, with the I I <br />exception of former paved areas, structures, and internal access roads. <br />Vegetative distribution is unrelated to topography. <br />I <br />2.Stormwater / dewatering trenches: The affected area is designed to <br />contain and direct all runoff to the currenteast side of UPRR <br />( ) drainage <br />facilities. All required and standard Best Management Practices will be <br />installed in the site drainage facilities. ' <br />3.The central processing point is a 10 acre piece of land more or less is in I I <br />the eastern central margin of the anticipated gravel resource. This serves ' <br />as an optional pad for the location of portable processing equipment and I I <br />other operations. Gravel extraction may occur under the central _ <br />processing point at any time, and operation facilities may be located at + <br />current ground level or at any excavated elevation. Rubble crushing and <br />I <br />screening and other recycling operations are anticipated to commonly <br />occur at the central processing point. I <br />4.Recycling operations: In accordance with State law the affected area <br />includes plant facilities that handle recycled asphalt pavement and recycled <br />concrete. I I <br />5.Conveyors and loading points: The operator may utilize conveyor <br />equipment as long as warranties are on file as required by law. Actual I <br />locations may vary and may be adjusted as mining progresses. <br />6.Compost and borrow resources: The eastern half of the affected area is <br />at th d f th <br />I-, e ge o e South Platte River valley. Few, rf any, gravel seams <br />are expected to be recoverable in this eastern area. Land will be I <br />regraded to industrial lots, the post -mining use. To achieve post -mining <br />overlot grades and to provide material for commercial sale or on-site cut <br />I <br />and fill, land in the eastern area is a source for topsoil and general fill in <br />any net quantity at final reclamation grades. Composted manure is mixed <br />with topsoil as an amendment or with other fill to create engineered fill. <br />i <br />7.Phosing and conceptual cells: The sand and gravel recovery project will <br />operate flexibly in the designated cells and subcells. In general, cells and <br />subcells are phased in a discrete sequence and limits reclamation liability. <br />Y <br />The mining process occurs within a cell until it is mined out and <br />backfilled Suc a IIc YARD OR LEASE <br />ssive ce s provide backfill from overburden and stripped <br />ENTRANCE <br />20' WIDE <br />topsoil to the extent practicable. <br />PRIMARY ACCESS <br />` <br />8.Mining techniques: The following practices and procedures will be observed <br />I <br />t <br />by the permitted operations: <br />• Equipment: Sand and gravel will typically be recovered using loaders <br />and haul trucks, with the use of excavators, dredge buckets, and other <br />PROCESS WATER <br />�I <br />� I <br />equipment as appropriate to address site conditions. <br />• Dry / Wet mining: The operator will initially mine in a cell to set a <br />I <br />OTHER <br />o <br />temporary floor above groundwater; sufficient to avoid exposure, <br />o � <br />1 EQUIPMENT <br />depletion, or other conditions requiring augmentation or a substitute <br />iA?I'llli- . <br />_ N •a? <br />supply plan. Once a floor has been established and an Y re uire <br />q d <br />State Engineer Water Court <br />Jlll�,,ll�; <br />or approval obtained, the operator may <br />0*1Odom �c <br />N <br />commence wet mining in a limited footprint that is a part of the <br />'' Ilr1,111; <br />temporary pit floor. The operator will recover wet material and use <br />other available area on the pit floor to lay out and dry pit run <br />materials. Once a bottom elevation has been established in the wet <br />m ,Z <br />mining subcell, establishing the basement floor of sand and gravel <br />extraction, the operator may then commence to use borrowed fill or <br />Xi■�r. <br />other native materials, including certain processed materials as allowed1 <br />W� <br />by state reclamation rules, to backfill between the basement floor and <br />the dry / wet mine interface. <br />i <br />• Direction of mining: The operator shall commenced mining within <br />dry g <br />each cell at either the eastern or western boundary of the cell, <br />proceeding to the opposite cell boundary and reversing direction to <br />complete wet mining within the cell. <br />1 ll'r Iii I <br />I <br />• Mining to stable slope: At the edge of the affected area, the operator' <br />I I <br />�'I Illli <br />11 <br />Ij1 <br />will mine to a stable slope, as determined by a geotechnical analysis. 11 111 IIII}II <br />�, �IIIjII i <br />i <br />Until a geotechnical analysis is submitted, a 2:1 mine -to slope is <br />I I I Ili 111 11 <br />assumed to be stable. For final reclamation, a regraded shallower slope <br />L II III llll�ll `) <br />I Ili I <br />} <br />will be shaped in areas not backfilled to match the existing ground <br />111 II�111j X111 i i <br />surface. <br />Illl`If1 l li <br />I <br />9.Inert fill: For all voided areas above groundwater, restoration of <br />III Jill II <br />I I: <br />topographyto post -mining requires a net import of fill. The affected area <br />I°`� k <br />coincides with the intended extent of an operation to receive inert fill (e.g., <br />construction materials such as concrete and asphalt rubble). Only the <br />I <br />volume and surface area above groundwater will be filled using imported <br />materials. <br />10. Access drive: this access may be dedicated to the City of Fort Lupton as <br />i <br />public right-of-way, at the operators discretion. In this event, the access <br />or other such affected area will be subject to <br />� partial release from the <br />reclamation permit. <br />I <br />11. Gravel well. The operator may replace current groundwater well facilities <br />with a gravel well. Alternate water supply sources for operations include <br />the Fulton Ditch and municipal service from the City of Fort Lupton. <br />sode 1* = 250' <br />' C W M INTERVAL <br />250 175 0 250 500 750 <br />SCALE IN FEET <br />^ SPACE v� <br />(NOT PARS <br />i/ <br />,30 9'2D i <br />CULVERTS DIRECT <br />OFFISTE FLOW <br />�I <br />RAILROAD <br />- OPERATIONS <br />(NOT PART) <br />�I <br />. Ili% <br />EXISTING DRAINAGE DITCH - <br />PREPARED IN CONFORMANCE WITH RULE 6.2(2) <br />S I G NATU R E 4 4%—�vst <br />z��1 <br />DATE <br />COUNTY ROAD 8 <br />COUNTY ROAD <br />I RIGHT-OF-WAY <br />1 ' <br />3 <br />AFFECTED AREA <br />189.66 ac <br />�50 <br />-N <br />TOP OF SLOPE <br />STORMWATER 1 H:1 V TOE OF SLOPE <br />DIVERSION SLOPE <br />TRENCH <br />CONCEPTUAL <br />SALVAGE EXISTING CELL 1A <br />AGGREGATE 27.00 ac <br />STOCKPILES (TYP.) i <br />LOADING POINT A —t <br />CONCEPTUAL <br />CELL 1 6 <br />26.97 ac <br />\- SITE <br />II <br />I SCALE AND SCALE HOUSE <br />i l ' <br />...... <br />.... ............ <br />............. 0 <br />.... / / <br />PRODUCT STOCKPILES '.' <br />(CONCEPTUAL <br />LOCATIONS ONLY) <br />BORROW / ,' A-IrRESOURCE <br />- -- _— -- (SEE NOTE 6) <br />0 <br />N <br />,J <br />/ O <br />• <br />'�v-:.................. <br />CENTRAL PROCESSING POINT <br />(10 ac) <br />MINE TO STABLE TRANSFER POINT --� <br />SIDE SLOPE <br />CONCEPTUAL CONVEYORS (OPTIONAL) <br />� CELL 1C (SEE NOTE 5) <br />� ( 26.95 ac <br />FLII <br />�I <br />LOADING POINT B <br />SEE DETAIL <br />i ! I CONCEPTUAL <br />CELL 1 D <br />C I 26.93 ac DIVERSION �R <br />I. I TRENCH <br />— � (SEE NOTE 2) <br />WET MINING AREA <br />(5 ACRES MAX. EXPOSED <br />GROUNDWATER PER CELL) <br />COMPOSTED <br />TOPSOIL RESOURCE <br />(SEE NOTE 6) <br />I <br />dm�-W�L STOCKPILE <br />DRYING <br />MATERIALS <br />EXCAVATOR <br />ADVANCES <br />SHORELINE <br />TRANSFER OVERBURDEN FROM <br />ADJACENT CELL OR ONSITE <br />BORROW SOURCE INTO EXPOSED <br />GROUNDWATER, CLOSING <br />SHORELINE FROM LONGEST <br />EXPOSED SIDE OF WET MINE <br />SUBCELL (SEE NOTE 8) L <br />TYPICAL DRY/WET SUBCELL DETAIL <br />NOT TO SCALE <br />04 <br />�v Z <br />O <br />U <br />FULTON DITCH <br />(POTENTIAL <br />WATER SOURCE <br />FOR OPERATIONS)` <br />�r <br />NATIVE GRADE <br />INERT FILL ABOVE MINING <br />GROUNDWATER PROG ESSION <br />(IMPORTED OR <br />MINE TO STABLE <br />NATIVE MATERIAL) EXCAVATOR LOADER SIDE SLOPES OPERATIONS <br />TEMPORARY EXPOSED <br />FLOOR GROUNDWATER <br />EXPOSED GROUNDWATER ,• <br />TEMPORARY <br />TO BE BACKFILLED WITH FLOOR <br />NATIVE OVERBURDEN OR �` • . _ _ <br />ONSITE BORROW • -- .-- L BASEMENT FLOOR <br />MATERIAL BEDROCK _'� <br />TYPICAL MINING DETAIL <br />NOT TO SCALE <br />ENTRANCE <br />20' WIDE <br />gni <br />PRIMARY ACCESS <br />` <br />DRIVE (SEE NOTE 10) <br />POTENTIAL <br />� <br />EMERGENCY <br />ACCESS <br />I <br />I <br />I <br />I <br />PROCESS WATER <br />�I <br />� I <br />RECYCLE POND <br />STACKER AND <br />I <br />OTHER <br />o <br />o � <br />1 EQUIPMENT <br />U <br />II <br />I SCALE AND SCALE HOUSE <br />i l ' <br />...... <br />.... ............ <br />............. 0 <br />.... / / <br />PRODUCT STOCKPILES '.' <br />(CONCEPTUAL <br />LOCATIONS ONLY) <br />BORROW / ,' A-IrRESOURCE <br />- -- _— -- (SEE NOTE 6) <br />0 <br />N <br />,J <br />/ O <br />• <br />'�v-:.................. <br />CENTRAL PROCESSING POINT <br />(10 ac) <br />MINE TO STABLE TRANSFER POINT --� <br />SIDE SLOPE <br />CONCEPTUAL CONVEYORS (OPTIONAL) <br />� CELL 1C (SEE NOTE 5) <br />� ( 26.95 ac <br />FLII <br />�I <br />LOADING POINT B <br />SEE DETAIL <br />i ! I CONCEPTUAL <br />CELL 1 D <br />C I 26.93 ac DIVERSION �R <br />I. I TRENCH <br />— � (SEE NOTE 2) <br />WET MINING AREA <br />(5 ACRES MAX. EXPOSED <br />GROUNDWATER PER CELL) <br />COMPOSTED <br />TOPSOIL RESOURCE <br />(SEE NOTE 6) <br />I <br />dm�-W�L STOCKPILE <br />DRYING <br />MATERIALS <br />EXCAVATOR <br />ADVANCES <br />SHORELINE <br />TRANSFER OVERBURDEN FROM <br />ADJACENT CELL OR ONSITE <br />BORROW SOURCE INTO EXPOSED <br />GROUNDWATER, CLOSING <br />SHORELINE FROM LONGEST <br />EXPOSED SIDE OF WET MINE <br />SUBCELL (SEE NOTE 8) L <br />TYPICAL DRY/WET SUBCELL DETAIL <br />NOT TO SCALE <br />04 <br />�v Z <br />O <br />U <br />FULTON DITCH <br />(POTENTIAL <br />WATER SOURCE <br />FOR OPERATIONS)` <br />�r <br />NATIVE GRADE <br />INERT FILL ABOVE MINING <br />GROUNDWATER PROG ESSION <br />(IMPORTED OR <br />MINE TO STABLE <br />NATIVE MATERIAL) EXCAVATOR LOADER SIDE SLOPES OPERATIONS <br />TEMPORARY EXPOSED <br />FLOOR GROUNDWATER <br />EXPOSED GROUNDWATER ,• <br />TEMPORARY <br />TO BE BACKFILLED WITH FLOOR <br />NATIVE OVERBURDEN OR �` • . _ _ <br />ONSITE BORROW • -- .-- L BASEMENT FLOOR <br />MATERIAL BEDROCK _'� <br />TYPICAL MINING DETAIL <br />NOT TO SCALE <br />o <br />U <br />gni <br />` <br />C <br />C <br />� <br />0 <br />0 3 <br />co <br />o <br />o � <br />U <br />_ N •a? <br />� �UNc%ic�, <br />o <br />.... . <br />0*1Odom �c <br />N <br />�a <br />m ,Z <br />Xi■�r. <br />W� <br />0 <br />I - <br />a. <br />V <br />to <br />L1.1 <br />U) <br />Z s <br />OS <br />a <br />W <br />W L <br />0 <br />Y <br />2 <br />C <br />CcC <br />U <br />C <br />C\ <br />s <br />E <br />UJ <br />oz <br />C <br />Z61 <br />z <br />Date: <br />23 <br />AUG <br />16 <br />N <br />Job No: <br />00 <br />10-116 <br />Drawn: <br />LD <br />Design: <br />CH Q <br />Checked: <br />Q <br />Scale: <br />1 „ = 250' U) <br />r <br />z <br />0 <br />J <br />0 <br />Sheet: <br />0 <br />N <br />00 <br />0 <br />Of.. <br />0 <br />0 <br />n <br />