2024-12-16_REVISION - M1977410 ‎(12)‎

• Permit No: M1977410
• IBM Index Class Name: Revision
• Doc Date: 12/16/2024
• Doc Name Note: Appendix L-1 2021 Reclamation Cost Calculation
• Doc Name: Request For Conversion
• From: Grand Island Resources LLC
• To: DRMS
• Type & Sequence: CN1
• Email Name: JPL
• Email Name: JLE
• Email Name: EL1
• Email Name: LJW
• Email Name: THM
• Media Type: D
• Archive: No

Closure Cost Estimate
Underground Openings
Project Name: Cross and Caribou Reclamation Estimator - Reclamation Plan
Date of Submittal: November 23 2021
File Name: RND2_Cross And Caribou Reclamation Cost Estimator_REVB.xlsm
Model Version: Version 1.4.1
Cost Data: User Data
Cost Data File: SRCE_Cost_Data_File_1_12_Std_2020.xlsm
Cost Estimate Type: Surety Cost Basis: Northern Nevada
Underground Openings Cost Summary
Labor Equipment Materials Totals
Adits, Portals & Declines Plugging $4,438 $342 $12,711 $17,491
Shaft Backfill/Cover $1,554 $3,298 N/A $4,852
Shaft Capping $1,072 $82 $556 $1,710
TOTALS $7,064 $3,722 $13,267 $24,053
Adits, Portals & Declines Plugging Uses RS Means Heavy Construction Cost Data for bulkhead production rate, material costs and crews
Bulkhead Construction Backfill or Foam (1)Bat Gate or Culvert (2,3,4)
Description
(required)
Bulkhead
Volume
Backfill
(rock)
Volume
Backfill Equipment
Fleet
Backfill
Productivity Backfill Hours
Total
Labor
Cost
Total
Equipment
Cost
Total
Material
Cost
Total
Bulkhead
Cost
Total
Labor
Cost
Total
Equipment
Cost
Total
Material
(Foam)
Cost
Total
Backfill
Cost
Total
Labor
Cost
Total
Equipment
Cost
Total
Material
Cost
Total Bat
Gate Cost
Total
Labor
Cost
cy cy LCY/hr $$$$$$$$$$$$$
1 Idaho Tunnel Portal 8 $3,344 $258 $1,304 $4,906 $0 $0 $0 $0 $0 $0 $0 $0 $3,344
2 Caribou 300 Level Portal 4 $547 $42 $652 $1,241 $0 $0 $0 $0 $0 $0 $0 $0 $547
3 Idaho Tunnel - Access Gate $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $3,368 $3,368 $0
4 Cross Mine Adit 4 $547 $42 $652 $1,241 $0 $0 $0 $0 $0 $0 $0 $0 $547
5 Caribou 300 - Access Gate $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $3,368 $3,368 $0
6 Cross Adit - Access Gate $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $3,368 $3,368 $0
16 $4,438 $342 $2,608 $7,388 $0 $0 $0 $0 $0 $0 $10,103 $10,103 $4,438
Notes:1) Foam costs include 1 hour move to and setup + 1 hr. minimum crew time
2) Assumes 1 hr walk-in/walk-out time for equipment
3) Batgate assumes 8 hr install time each
4) Bat culvert backfill costs based on one 8-hr day (i.e. backfilling hours = 8 hrs).
11/21/2021
Copyright © 2004 - 2009
SRCE Software. All Rights Reserved. Page 4 of 5 Underground Openings
I
I