2013-07-25_REVISION - M2008078

• Permit No: M2008078
• IBM Index Class Name: Revision
• Doc Date: 7/25/2013
• Doc Name: GP Aggregates LLC West Farm Pit Technical Revison no 2 Request
• From: J&T Consulting Inc
• To: DRMS
• Type & Sequence: TR2
• Media Type: D
• Archive: No

J &T Consulting, Inc. GP Aggregates LLC
id ' West Pit
7/26/22612 013
Reclamation Bond Quantities and Costs tPy
© 2013 J&T Consulthm Im 07115 GP Aggregates Re Bond Calc TR2.
Summary of Unit Costs
uuannry
unit
unit
Direct costs
cost 1
Active Mining Area (Surface only in PH 1 Area)
Scarifying Ground
$
200
/ acre
Re- applying topsoil 12" thick
$
2,000
/ acre
Revegetating disturbed area
$
1,000
/ acre
Dewatering full pit
$
350
/ million gallons
Mobilization
$
2,500
lump sum
Slurry Wall Cost Breakdown (0 -50 ft Ca) $3 /ft - 51 -70 ft (a) $4 /ft )
Slurry Wall Cost (45 foot average depth) $ 135 / linear foot
Slurry Wall Cost (50 foot average depth) $ 150 / linear foot
Slurry Wall Cost (60 foot average depth) $ 190 / linear foot
Slurry Wall Cost (65 foot average depth) $ 210 / linear foot
Slurry Wall Cost (70 foot average depth) $ 230 / linear foot
Overhead and Profit Costs
Liability insurance 1.55% of direct cost
Performance bond 1.05% of direct cost
Profit 10.00% of direct cost
Total Overhead Cost 12.60% of direct cost
Project Management
Engineering and bidding 4.25% of direct cost
Management and administration 5.00% of direct cost
Total Additional Cost 9.25% of direct cost
Phase 1A (9.25 acres) (Limited to Surface Mining In PH 1 Area Above Groundwater Level)
lrteaamatton uperatton
uuannry
unit
unit
cost
cost 1
Active Mining Area (Surface only in PH 1 Area)
Scarifying Ground in Disturbed Area
9.3
ac
$
200
$ 1,860
Topsoil Placement in Disturbed Area
9.3
ac
$
2,000
$ 18,600
Revegetate Disturbed Area
9.3
ac
$
1,000
$ 9,300
Scarifying Ground, Phases 1 -4 Slurry Wall Disturbance Area
5.0
ac
$
200
$ 1,000
Topsoil Placement, Phases 1 -4 Slurry Wall Disturbance Area
5.0
ac
$
2,000
$ 10,000
Revegetate, Phases 1 -4 Slurry Wall Disturbance Area
5.0
ac
$
1,000
$ 5,000
Plant Site Phase 18ITemporary Topsoil Stockpile Areas
Scarifying Ground in Plant Site Area
11.5
ac
$
200
$ 2,300
Topsoil Placement in Plant Site Area
11.5
ac
$
2,000
$ 23,000
Revegetate Plant Site Area
11.5
ac
$
1,000
$ 11,500
Scarifying Ground in Topsoil Stockpile Areas
2.8
ac
$
200
$ 568
Revegetate Topsoil Stockpile Areas
2.8
ac
$
1,000
$ 2,840
Mobilization
1.00
Is
$
2,500
$ 2,500
Total Direct Cost
$ 88,468
Overhead and Profit Cost (12.60 %) $ 11,147
Contract Cost $ 99,615
Project Management (9.25 %) $ 8,183
Total Required Financial Warranty For Phase 1A $ 107,798
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