2003-02-27_REVISION - M1998013 ‎(2)‎

• Permit No: M1998013
• IBM Index Class Name: Revision
• Doc Date: 2/27/2003
• Doc Name: Response to DMG letter dated 02/12/03
• From: Tetra Tech
• 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 72851E perimeter distance at limit of
mining - 70351E at reclamation
1 Replace fill material using overburden and shape pond
side slopes at 3:1 236,249 CY $ 0.75 $ 177,187.00
2 Replace overburden and shape the shoreline @ 4:1 13,028 CY $ 0.75 $ 9,771.00
3 Replace 12" of topsoil on the shoreline @ 4:1 5,373 CY $ 0.75 $ 4,029.00
4 Seed and mulch shoreline 3.33 Acres $ 800.00 $ 2,664.00
.- ~; _R._> ,_ Subto"tal $;`f93.,65i~.00
B. Dewatering trench would be excavated to nearly the
pond bottom elevation and fill with water ----- ----- ----- -----

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C. Phase 7 -Would be 100% reclaimed _____ _____ _____ _____
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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 1 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 ] 0 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
] 0 Seed and Mulch 25 Acres $ 800.00 $ 20,000.00
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~. ~t~,-~' ._ : ;:Subtotal $ ~':4'I;OOp:0.0:
E. Settling Ponds
1 Place 12" overburden on 0.25 acre 403 CY $ 0.75 $ 303.00
2 Place 12" topsoil on 0.25 acre 403 CY $ 0.75 $ 303.00
3 Seed and Mulch 0.25 Acres $ 800.00 $ 200.00
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?Subtotal $ :' `~ 806:00
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F Slurry Wall @ 100% Installation Cost per DMG
Bonding Requirment. Assuming a total of 19,914 If of
wall, avg depth of 26.5' + 3' into bedrock
1 Excavation, Materials and Labor and Dewatering 587,463 Face Ft $ 3.00 $1,762,389.00
` ° = Subiotal':~ $1>762,389.00
Total Disturbance Costs $ 1,997,846
Contractor Mobilization (S% of direct costs) $ 159,828
Overhead (18.5% of direct costs) $ 369,602
Administration 5% of contract amount) $ 126,364
Total $ 2,653,639
* Assumes 199]4 linear fee[, average depth 26.5' (+ 3' into bedrock) @ 100%
Revised 2.26.03 Per Mining Plan Revisions
HALL-IRWIN CORPORATION -THE SHORES AMENDMENT 1 (#M-1998-013) Page 22 of 29