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Assumptions). Backfill and grading costs associated with the landfill disposal <br />site are based on DMG cost calculations in DMG Task 18b for the landfill site <br />(4840 LClr7. This cost is calculated at an additional $2062. The additional <br />revegetation cost for the landfill site per DMG Task 18c is $1962. <br />3.3 Structures to Remain <br />The DMG FW cost calculations include demolition costs for three structures, five <br />culverts, and two bridges that Henderson believes should remain. These <br />structures and areas are: <br />• Area 6 (06a) -East Branch Reservoir Pumphouse <br />• Area 15 (15a) -Makeup Water line/Pumphouse (Williams Fork) <br />• Area 20 (20a) - Seepwater Canal/Pumphouse (Ute Park ) <br />• Area 3 (03a, 03i} -Portal Area Culverts and Bridge <br />• Area 4 (04a, 04h) -Surface Railroad Culverts and Bridge <br />As stated in the original Permit (page 9-13), reservoirs will remain as "permanent <br />bodies of water. Henderson defines this post-mining land use as Developed <br />Water Resources (WR) by definition of the Rules presently in effect. As such, the <br />East Branch Reservoir pumpstation and the Williams Fork pumpstation must <br />remain operational to utilize Henderson's water and water rights as necessary. <br />Likewise, the Ute Park pumpstation should remain for use in the water treatment <br />system to be constructed below the tailing impoundment. <br />The culverts and the bridge noted above present apost-mining, multiple-use <br />issue. At various times in the past, the U.S. Forest Service (USES) and Xcel <br />Energy have expressed interest in assuring access to public and private lands <br />east of the mill site. Maintenance of the culverts and bridges have been a <br />component of these discussions. Therefore, Henderson wishes to retain the five <br />culverts and the two bridges intact following termination of operations in order to <br />provide continuing access to public lands, right-of-ways, private lands, and <br />Henderson properties east of the mill. <br />Henderson requests that these structures, culverts and bridges remain intact. <br />3.3.1 FW Cost Reduction -Remaining Structures <br />Approval of Henderson's request to keep the three pumpstations, culverts and <br />1 <br />7 <br />