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Ms. Erica Crosby, Division of Minerals and Geology April 8, 2005 Page 4 of 5 ~~ CIVIL RES'sJURCES,LLC In your previous adequacy review letter you requested the following information for the reclamation cost estimate: to a worst-case scenario, the total area that would require topsoil and seeding 126 acres The volume of material in a maximum of 6,000 LF of slope liner 967,000 CY 19. SW TKO will be responsible for reclaiming the well mitigation area when it is no longer needed. The proposed injection well will be reclaimed by removing the pipe, backfilling the area to existing grade, and seeding and mulching with upland seed mix. 20. We have revised the Mining Plan Map so that the old phase 4 (western portion of Villano property along Highway 85) will no longer be mined. We believe this area is only back-up floodwater (0 velocity floodwater) from the South Platte River that passes through the existing box culverts under SH 85. We intend to apply for a LOMR-F, as required by FEMA to remove this area from the floodplain. In addition we will be applying for a Flood Hazard Development Permit prior to any stockpiling in the floodplain. Temporary stockpiles are generally allowed within the floodplain, provided they are oriented parallel to flood flow and incorporate breaks that allow flood water to pass. 21. The Reclamation Plan Map indicates that final slopes will be 4:1. It also includes a detail of proposed final slopes of the clay liner. The applicant will submit proposed contours in conjunction with the technical revision that contains the construction plans and specifications for the compacted clay liner. 22. The applicant will provide the Division a copy of the approved well permit from the Office of the State Engineer prior to exposing groundwater on the site. 23. We will respond to Mr. Schreiner's comments in a separate letter. 24. The requested information associated with the reclamation cost estimate is attached. 25. It is my understanding that an easement is a right to make limited use of another's real property. The easement is recorded on the deed and survives any sale of the property. The Panhandle pipeline easement mns with the property, not with any type of permit application. It is unclear to me how this easement could be "under a different mine name and operator." 26. The title work does not indicate that there is a 50' oillgas easement along Highway 85. This was incorrectly stated in the stability analysis and should be deleted from this application. 27. We have attached our response to CDOT. 28. Please refer to the enclosed Mining Plan Map for the revised setback distances. 29. Please refer to note 13 on the Mining Plan Map.