2003-01-30_REVISION - M1998013

• Permit No: M1998013
• IBM Index Class Name: Revision
• Doc Date: 1/30/2003
• Doc Name: Adequacy Review Response
• From: Tetra Tec RMC
• To: DMG
• Type & Sequence: AM1
• Media Type: D
• Archive: No

The Shores Resource -Amendment No. 1
Table for Reclamation Cost Estimate
Activity Quantity Units Unit Costs Cost
A. Phase 8 - 95% mined -approximately 60 acres of
disturbance. Fill sideslopes of pond with overburden
material and shape, seed and mulch shoreline -
approximately 6880 if perimeter distance at limit of
mining - 66001E at reclamation
1 Replace fill material using overburden and shape pond
side slopes at 3:1 223,901 CY $ 0.75 $ 167,926.00
2 Replace overburden and shape the shoreline @ 4:1 12,222 CY $ 0.75 $ 9,166.67
3 Replace 12" of topsoil on the shoreline @ 4:1 5,040 CY $ 0.75 $ 3,780.33
4 Seed and mulch shoreline 3.1 Acres $ 800.00 $ 2,499.39
Subtotal $ 183,372.39
B. Dewa[ering trench would be excavated to nearly the
pond bottom elevation and f II with water ----- ----- ----- ----
=; ~,: Subtotal --'--
C. Phase 7 -Would be 100% reclaimed _____ _____ _____ _____
_ _ Subtoia] -----
D. Processing area. Processing equipment is portable and
would be removed by the operator
1 Move serge piles into settling pond 1,000 CY $ 0.75 $ 750.00
2 Remove concrete pad for wash plant 15 CY $ 65.00 $ 975.00
3 Remove concrete pad for asphalt plant 60 CY $ 65.00 $ 3,900.00
4 Remove concrete pad for concrete plant 37 CY $ 65.00 $ 2,405.00
5 Demolish and remove shop I LS $ 2,000.00 $ 2,000.00
6 Remove concrete footings for office 8 CY $ 65.00 $ 520.00
7 Remove concrete base for scale 10 CY $ 65.00 $ 650.00
8 Scarify ground 25 Acres $ 150.00 $ 3,750.00
9 Spread 12" topsoil 8,067 CY $ 0.75 $ 6,050.00
10 Seed and Mulch 25 Acres $ 800.00 $ 20,000.00
Subtotal . $ 10,030.00
E. Settling Ponds
1 Place 12" overburden on 0.25 acre 403 CY $ 0.75 $ 302.50
2 Place 12" topsoil on 0.25 acre 403 CY $ 0.75 $ 302.50
3 Seed and Mulch 0.25 Acres $ 800.00 $ 200.00
Subtotal $ 41,000.00
F Slurry Wall @ 20% Installation Cost per DMG
Bonding Requirment. Assuming a total of 19,893 If of
wall, avg depth of 26.5' + 3' into bedrock
I Excavation, Materials and Labor and Dewa[ering 117,369 Face Ft $ 3.00 $ 352,106.10
Subtotal $ 352,106.10
Tota] Disturbance Costs $ 576,478.49
Contractor Mobilization (8%) $ 46, I t 8.28
Overhead (18.5%) $ 106,648.52
Administration (5%) $ 28,823.92
Total $ 758,069.22
* Assumes 19893 linear feet, average depth 26.5' (+ 3' into bedrock) n 20%
Revised 1.28.03 Per Mining Plan Revisions
HALL-IRWIN CORPORATION -THE SHORES AMENDMENT 1 (#M-1998-013) Page