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Page 17 <br /> 6.4.12 EXHIBIT L - Reclamation Costs <br /> DIAGRAM Z- <br /> 3H: 1 V <br /> FINISHED <br /> 40.0'± �� GRADE. <br /> depth , <br /> FILL TO GRADE — 1 ,400 SO. FT <br /> Hauls are expected to be very short excavating material from the core area where <br /> material is readily available to establish final grade on those walls at 3H:iV and placed <br /> on the exterior walls to establish the required grades. It is estimated that there would be <br /> approximately 4,610-foot of core and side slopes in addition to the 6,200-foot extraction <br /> limit wall. Due to the very short hauls it may only require a wheel loader operating in <br /> load/carry/dump mode with a supporting Tracked Dozer. At most, the method of fill will <br /> utilize one (1) Excavator/Loader, two (2) Haul Trucks, together with a supporting Tracked <br /> Dozer and one (1) Sheep's Foot Compactor. The concept for establishing the regraded <br /> slopes for financial warranty purposes is shown in the following figure. <br /> NW FIELD= <br /> Extraction limp wall I <br /> 41.04±ACRES Material backfIII to <br /> reduce slope to 3H:1 V +` <br /> Matenal excavated from f <br /> 'interior wall used as backfill __ For estimate of financial warranty reclamation <br /> -- — on extraction limit wal1. cost,material from interior walls is excavated <br /> reducing the slope to 3H:1V and that material <br /> ,1 Interior wall.Material CENTRAL FIELD is placed on the exterior extraction limit walls <br /> excavated to reduce as backfill to establish 3H:1 V slopes. <br /> slope to3H TV = 162.56±ACRES <br /> ' V It <br /> Imen <br /> / GENERALMINING PROGRESSION CENTRAL FIELD excavated <br /> fedt Material <br /> excavated to reduce <br /> CENTRAL SECTION slope to3H1V <br /> I NOTE WELL:THE CORE AREA OF 2H:IV CUT SLOPE <br /> t' EXLRACTION MAV VARY IN SIZE.SHAPE ...' <br /> AND EXTENT FROM THAT PORTRAYED <br /> INITIAL DEPENDING UPON FIELD CONDITIONS IMatenal excavated from IS0 <br /> CENTRAL FIELD AREAOF --- NECESSARY TO CIRCUMNAVIGATE THE <br /> �+ �+ Interior wall.Material interior wall used as backfill <br /> WEST SECTION EXTRACTION excavp3Hto reduce SECTIONi0 FIELD.ADESIGNATED GENERA MINING PROGRESSION On eXtraCtlOn limit Wall I.O% <br /> slope <br /> Material excavated from <br /> -nterior..If used as backfill F 2H 1V GUT SLOPE ! o <br /> - - on extraction limit wall � �������,�� <br /> Marlclll <br /> tenal ba kflledlo <br /> ii <br /> ..t __ REa�//� reduce slope to 3Ht1V i <br /> Extraction limit allY- <br /> ,, Material led:1 <br /> 'reduce slopelope t to 3H:1V --- �� <br /> Approach to regrading interior and extraction limit slopes for financial warranty purposes. <br /> VARRA COMPANIES, INC. TWO RIVERS SAND GRAVEL AND RESERVOIR PROJECT MARCH 2O22 <br /> A REGULAR IMPACT[1121 CONSTRUCTION PERMIT APPLICATION—COLORADO DIVISION OF RECLAMATION MINING&SAFETY <br /> OFFICE OF MINED LAND RECLAMATION <br />