2011-05-18_PERMIT FILE - C1981012A

• Permit No: C1981012A
• IBM Index Class Name: Permit File
• Doc Date: 5/18/2011
• Doc Name: Bond Calculations ‎(TR54, TR53, PR3, TR55, TR56)‎
• Section_Exhibit Name: Exhibit 28 Appendix B Part 2
• Media Type: D
• Archive: Yes

Rock Dust Delivery System
The underground rock dust delivery system includes a rock dust storage silo or bin, compressor and pressure vessel.
The rock dust sytem is located on Map 11, Sheet 3 —East Portal Facilities.
Refer to Figures 6 and 7 for details of the structures.
Site Plan Area: Rock Dust Bin
Item
Concrete
Bin Units
Length (ft)
12
Width (ft)
Width (ft)
12
Depth/height (ft)
12
10
Quantity
64
3,000
Units
CY
LBS
Unit cost
$74
$0.13
Total direct cost
$4,736
$399
Job supervision hours
8
9
Job supervision cost
$333
$375
% of direct costs (Includes profit, insurance, bond)
$619
$52
Contract
$5,688
$826
Engineering
$242
$35
Reclamation management
$284
$41
Estimated bond
$6,215
$903
Site Plan Area: Rock Dust Compressor and Tank
•
Item House Concrete Units Tank Units
Length (ft)
20
20
Width (ft)
20
20
Depth/height (ft)
10
2
Quantity
800
30
3,000
3000
Units
CF
CY
LBS
LBS
Unit cost
$0.13
$74.00
$0.13
$0.13
Total direct cost
$106
$2,193
$399
$399
Job supervision hours
8
9
10
11
Job supervision cost
$333
$375
$417
$458
% of direct costs (Includes profit, insurance, bond)
$14
$287
$52
$52
Contract
$454
$2,854
$868
$910
Engineering
$19
$121
$37
$39
Reclamation management
$23
$143
$43
$45
Estimated bond
$496
$3,118
$948
$994
TR 54
Exhibit 28 —Page 136
Revised 11 -03 -2010