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Aggregate Industries, Morrison Quarry <br />Amendment No. 7 to Permit M-1973-021 <br />Morrison, CO <br /> <br />October 2021 | i <br />Contents <br />Exhibit A – Legal Description ........................................................................................................ 1 <br />Exhibit B – Index Map ................................................................................................................... 7 <br />Exhibit C – Pre-mining and Mining Plan Maps of Affected Lands ................................................. 9 <br />Exhibit D – Mining Plan ............................................................................................................... 15 <br />Rationale for Amended Mining Plan ........................................................................................ 15 <br />Phase III Work Completed to Date .......................................................................................... 15 <br />General Phase III Mining Approach ........................................................................................ 16 <br />Above El. 7,000: 60H:40V Benches .................................................................................... 16 <br />El. 7,000 to El. 6,600: 40H:60V Benches ............................................................................ 16 <br />Below El. 6,600: 40H:40V Benches and application of the Observational Method ............. 17 <br />Phase III Quarry Development Narrative ................................................................................ 18 <br />West Quarry Haul Road ....................................................................................................... 18 <br />South Quarry Development ................................................................................................. 18 <br />West Quarry Development .................................................................................................. 19 <br />Water Management ............................................................................................................. 19 <br />Schedule for Phase III Buildout ........................................................................................... 20 <br />Exhibit E – Reclamation Plan ...................................................................................................... 27 <br />Existing Reclamation ............................................................................................................... 27 <br />North Quarry ........................................................................................................................ 27 <br />Central Quarry ..................................................................................................................... 27 <br />South Quarry ....................................................................................................................... 28 <br />Planned Reclamation .............................................................................................................. 28 <br />North Repository Area ......................................................................................................... 28 <br />South and West Quarries .................................................................................................... 29 <br />Grading ................................................................................................................................ 32 <br />Structure Removal ............................................................................................................... 33 <br />Revegetation ........................................................................................................................ 33 <br />Schedule .............................................................................................................................. 34 <br />Planned Reclamation Scope of Work .................................................................................. 35 <br />Exhibit F – Reclamation Plan Maps ............................................................................................ 42 <br />Exhibit G – Water Information ..................................................................................................... 52 <br />Project Water Requirements ................................................................................................... 52