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and Room#2 openings. Current calculations for backfill adit closure are detailed <br /> in the attached hand drawn schematic, pages 6 and 7, as well as the bulleted list <br /> below. <br /> • Rockfill Adit Backfilling includes: backfill, 1 foot of suitable plant growth medium, <br /> rangeland seeding, and a posted sign. <br /> • Room#1 backfill: 688 CY x $5/CY= $3,440.00 <br /> • Room#1 1 foot depth plant growth medium: —35 CY x $1.50/CY = $52.50 <br /> • Room #1 rangeland seeding: 0.02 acres x $820/acre = $16.40 <br /> • Room #2 backfill: 900 CY X $5/CY=$4,500.00 <br /> • Room #2 1 foot depth plant growth medium: 44 CY x $1.50/CY= $66.00 <br /> • Room #2 rangeland seeding: 0.02 acres x $820/acre= $16.40 <br /> • Total: $8,091.30. <br /> 9. The Division has conducted a reclamation cost estimate for the site and included the cost <br /> for installing three grated adit closures with doors for access. These costs are based on <br /> costs incurred by the Division's Inactive Mine Program for closing similar adits. The cost <br /> estimate included with the application did not take account of a cost for spreading soil <br /> material or conducting revegetation. The attached estimate includes costs for these tasks. <br /> a. DRMS Response 3: A new reclamation cost estimate is enclosed. Please <br /> indicated is the applicant concurs with the estimate. <br /> b. GLA Response 3: See response to Rule 6.3.4 Exhibit D—Reclamation Plan #8 <br /> above for explanation of Adit backfilling—Rockfill cost estimate for two adits. <br /> Rule 6.5—Geotechnical Stability Exhibit <br /> 16. Page 67 of the stability analysis indicates an area of potential failure was estimated for <br /> the combination of Joint Orientation 6 and 7. The report shows an area where <br /> stabilization may become necessary if the excavation were extended in that direction. <br /> Please depict the location of this area on the Exhibit E-1 map. If this area will eventually <br /> be mined pleased indicate how this area will be stabilized to prevent failure or otherwise <br /> mitigated. <br /> a. DRMS Response 3: The Division could not located Joint 7 on the revised Exhibit <br /> E-1 Map or the strike and dip lines. Please revise the map to include these <br /> features. <br /> b. GLA Response 3: Map E-1 is replaced by GLA Map 'Colorado Rose Red— <br /> Gallery Map.' Fractures within the underground workings of the site as well as <br /> along the highwall above the entrance is included on the new GLA map. <br /> Discussion of potential fracture movements in included in the attached <br /> Geotechnical report generated by GLA titled "Geotechnical Analysis of the <br /> Colorado Rose Red Granite Quarry" dated November 2018. 'Colorado Rose Red <br /> —Gallery Map' is located in Appendix 2 of the above listed report. <br /> 2 <br />