2023-03-16_PERMIT FILE - P2022019

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Closure Cost Estimate Expl.Roads&Pads Project Name: REX Exploration Montrose County Colorado-Notice or Exploration Date of Submittal: December 2022 File Name: REX_NOI_SRCE_Ver_1_4_1_017_NVb.xlsm Model Version:Version 1.4.1 Cost Data:User Data Cost Data File:20220801_SRCE_Cost_Dala_File_1_12_Std_2022.xism Cost Estimate Type:Surety Cost Basis:N.Nevada Notice Level Exploration Roads&Pads-Cost Summary Labor I Equipment Grading Costs $639 $1,350 materials A1$6,",41863493 Cover Placement Cost $o $0 N/A Rlppirkg/Scarifying Cost $497 $1,183 N/A Subtotal Earthworks 1,136 2,533 Revagelalion Cost $1,225 700 Sb69 TOTALS $2,361 $3,233 $569 Exploration Roads&Pads-User Input You must fill in ALL green cells and relevant blue cells in this section for each road Facility Description Physical(1)-MANDATORY User Overrides Growth Media Retired. Underlying Road+ Number Individual Drill Drill slope Volume Disturbed Area Growth Distance to Slope ham ❑escriptlon Ground Ungraded Cut Drill Pad Road of Drill Sump Pad Pad Replacement (If calculated (If cakulated Media Growth Madle Rued to (required) ID Code Slope slope Slope Length Width Pad. volume Width Length Percent elsewhere) .1...h...) Thickness Stockpile stockplle grade H:1V degrees it it cy h ft % cy acres in It %grade 1 La down Yard S.o 1,3 60.0 too 12.0 1 o 75.0 too t00% 2 Drill Pads 5A 1.3 60.0 225 12.0 3 12 50.0 75 too 3 Overland Travel to site N8 15.0 1.3 60.0 110 14.0 0 0 0.0 0 too 4 Pro osed Roads to Site#11 15.0 1.3 60.0 50 14.0 0 o 0.0 o 100% 5 Improved Road 15% 15.0 1.31.3 60.0 1,110 12.0 0 o 0.0 0 t00% 6 Im roved Read 10% 10.0 60.0 110 12.0 0 0 0.0 0 100 7 Improved Road 5% 5.0 1.3 60.0 240 12.0 0 0 0.0 0 100 Notes: 1.All Physical parameters must be input even if manual overrides for volume or area are used. 2.Slope replacement refers to the percentage of cut voiumn replaced during regrading. 3.If Slope from facility to borrow source is>20,downhill travel time may be underestimated due to imitation of uphill travel time curves and downhill speed tables from CAT Handbook(see Productivty Shaet) 4.Sump volume will be applied to all roads on slopes<20%.On slopes>20%pad width(i.e.cut volume)should be adequate to account for sump volume. Exploration Roads&Pads-User Input(cont.) You must RII In ALL green cells and relevant blue cells in this section for each road Grading Growth Media Revegetation Growm Media Retired. Additional Placement Additional Description Materiel Recentouring Hr. Growth Media Equipment Maximum Hrs scadfyingl I.qulred) Condition Cut Materiel Type Equipment Fleet far Welk-in" Material Type Fleet Fleet Six. for Walk-In"' Seed Mix Mulch Fertilizer Rlpping7 Rlpping Fleet (salad) (sekcl) (select) (select) (seleq) (us erred.) (sated) (s.l.c1) (select) (select) (select) 1 La down Yard 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 2 Drill Pads 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 3 Overland Travel to Site K8 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 4 Pro osed Reads to Site N11 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 5 Im roved Road 15% 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 6 Im roved Road lo% 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer 7 Improved Road 5% 1 Granite-broken Small Dozer User Mix 1 None None Yes Small Dozer Notes: 1.Include one-way hours necessary to walk equipment In from drop-aff paint to work area 2.Material Types are used for density connection based on material densities in Caterpillar Performance Handbook material density table 3?72023 s:a�..:.m..�r ...... Pa e 9 of 56 - 9 Eapl.!',ad.,X Pads