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<br />MINE ID # OR PROSPECTING ID#
<br />INSPECTION DATE: 9-26-00
<br />
<br />M-1977-493 PAGE: 5
<br />INSPECTOR'S INITIALS: ACS
<br />compares the costs for channel reconstruction, regrading, and topsoiling in the Storke
<br />Yard as estimated by the DMG in 1998, by Climax in 1999, and as estimated by the DMG
<br />relative to the current site conditions under two scenarios that are discussed in
<br />detail below the table.
<br />I STORRE COMPLEX RECLAMATION COST ESTIMATES NOT INCLUDING REVEGETATION
<br />DMG task # and DMG 1998 Climax 2000 estimate, grade 2000 estimate, backf ill
<br />description estimate 1999 Ark. R. cut mat'1 Ark. R. cut @ 7-shaft 6
<br /> estimate in-place Storke portal areas
<br />7. Excavate Ark. R. $80.560 $81,517 $'77,481 $256.94`_
<br />channel
<br />7a. Riprap $14,664 $14,664 $14,664 $14,664
<br />7b. Riprap bedding $2,482 $2,482 S2,482 $2,482
<br />7c. Eackfill & grade Included Included $54,063 Included in #7
<br />Ark. R. cut material in #7&10 in #7&10
<br />8. Finish grade $2,404 $2,349 $2,280 $2,280
<br />reconstructed channel
<br />10. Eackfill & rough $106,131 $104,452 $6,774 Included in #7
<br />grade Storke Complex
<br />11. Finish grade $12,015 512,107 $2,090 $2,09C
<br />Storke Yard
<br />12. Topsoil from Ark. $9,529 $8,317 $7,266 $7,265
<br />R. stockpile
<br />13. Topsoil from $11,566 $6,348 $8,438 $8,438
<br />Fremont stockpile
<br />14. Topsoil from 561,871 $60,604 Not needed, 46 acres Not needed, 46 acres
<br />McNulty stockpile already seeded already seeded
<br />TOTALS $301,322 $292,930 $175,543 $294,165
<br />The two new reclamation cost scenarios for the Storke Yard are summarized in the
<br />columns on the right half of the table. The first scenario assumes that the
<br />approximately 128,000 cubic yards of cut generated in the Arkansas River
<br />reconstruction project can be graded and blended into the reclaimed topography
<br />immediately adjacent to the reconstructed channel. The second scenario assumes that
<br />the Arkansas River cut material will be hauled to the opposite side of the Storke Yard
<br />and backfilled into the Storke Portal area and the slope below 7-shaft. The estimated
<br />cost differential of these scenarios is $118,622.00 due to the haul distance involved.
<br />Based on qualitative observations by the DMG in the Storke Yard, it is not likely that
<br />the Arkansas River cut material can be graded in-place without adversely impacting
<br />the quality of reclamation in the vicinity of the reconstructed channel. However,
<br />there appears to be ample room in the 7-shaft area to waste the 128,000 cubic yards
<br />of cut, and the backfilling of this material below 7-shaft may in fact enhance the
<br />reclamation potential in this area. Unless Climax can demonstrate that the first
<br />scenario is feasible, DMG will assume that the second scenario will be employed as
<br />the basis for cost estimating and the determination of the final bond amount to be
<br />established under revision SR-03. The appurtenant worksheets and cost calculations
<br />for the new estimates are enclosed with this inspection report.
<br />The E-dump complex facing Highway 91 was inspected. The approved reclamation plan
<br />for this area calls for grading of the uppermost bank slopes of the dump to 2.5:1 to
<br />3:1 "where practical and feasible" (1984 amendment AM-02). The approved plan
<br />
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