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2009-03-06_REVISION - M1987049 (18)
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2009-03-06_REVISION - M1987049 (18)
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Last modified
6/15/2021 3:06:00 PM
Creation date
3/10/2009 12:48:17 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1987049
IBM Index Class Name
REVISION
Doc Date
3/6/2009
Doc Name
Exhibit L- Reclamation Costs
From
Brierley Associates LLC
To
DRMS
Type & Sequence
AM2
Media Type
D
Archive
No
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Table Ll - Estimated Reclamation Costs(') <br /> Activity Approx. Unit . Unit Total <br /> Quantity Cost Cost <br />1. Replace 25 percent of slurry wall to 9,023 (0.25) LF $75(' $169,200 <br /> meet SEO leakage criteria =2,256 <br />2. Relocate McCanne Ditch assuming 5 2118 LF $10 21,180 <br /> cu. yds. earthwork and 35 sq. ft of <br /> seeding per LF <br />3. Evaporative losses for one year at 287.5 acre- $250 $71,875 <br /> 2.5 acre-feet per year times 115 acres feet <br /> for water storage reservoir <br />4. Evaporative losses for ten years at 1,200 acre- $250 $300,000 <br /> 2.5 acre-feet per year times 18 acres feet <br /> for open lake at former plant area <br /> and at Cell No. 2 (60 acres) with half <br /> of area consisting of open water and <br /> half emerged wetlands and <br /> backfilled perimeter <br />5. Backfill and surface preparation for 70,000 cu. yd. $1.00 $70,000 <br /> reclaimed perimeter slopes(3:1) at 35 <br /> yd3/LF times assumed 2,000 LF un- <br /> reclaimed at any given point in time <br />6. Backfill and surface preparation for 605,000 cu. yd. $1.00 $605,000 <br /> reclaimed upland cropland above <br /> floodplain. Assumes maximum 25 <br /> acres disturbed requiring average 15 <br /> ft of non-engineered placed backfill. <br />7. Drill-seed backfilled slopes (includes 3.7 acre $750 $2,755 <br /> seed, mulch, tackifier and fertilizer) <br /> at 80 ftz/LF times 2,000 LF <br />8. Drill-seed 20 acre re- 20 acre $750 15,000 <br /> graded/topsoiled stripped area <br /> adjacent to active mining phase <br />54
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