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Engineer's certification. The applicant has two options in order to quality for the 20 % slurry wall <br />installation cost; <br />a. Include a general description of the slurry wall installation. The application would be <br />approved with a commitment stating that a liner or slurry wall design, specifications, and quality <br />assurance plan would be submitted as a technical revision and the revision would be approved <br />prior to the exposure of groundwater in the pit, or <br />b. A commitment from the applicant that they will provide the Division with a construction <br />report and engineer's certification of the slurry wall prior to the exposure of groundwater. If the <br />Division accepts that the report and certification demonstrate that the slurry wall will function up <br />to standazd, then the operation would be eligible for the reduced (20 percent of replacement cost) <br />slurry wall bond. <br />29. The Division will estimate a cost to reclaim the site based on the information submitted in the <br />application. However, please state the overall affected azeas of the operation at any given time. In <br />addition, the Division will include a cost to backfill Phase 1. It does not appear to be. included in the <br />estimate. <br />Rule 6.4.19 Exhibit S- Permanent Man-Made Structures <br />30. The Gamueda structures (residence, outbuilding and well #17) and the Wilson structures (residence <br />and outbuilding) appear to be located within 200 feet of the affected area, but was not noted on Exhibit <br />C-1. Please revise the exhibit to reflect these structwes that are located within 200 feet, and provide <br />mining offset distances. <br />31. The Robbins structure located within 200 feet of the affected land was not included in the table of <br />Exhibit S as being necessary to obtain an agreement to mine closer than 200 feet, provide an <br />engineering evaluation or maintain a distance of 200 feat. Please revise the table in the exhibit <br />accordingly. <br />32. A number of structures are noted on the map, but do not contain a description or owner, Please <br />describe the structure and state the owner of the structure and update Exhibit C-1 and the table in <br />Exhibit S accordingly (since it appears to be within 200 feet of the affected land). This includes; <br />• A structure is located at the end of Christopher Road. <br />• MW231ocated east of WCR 23.5 <br />• Top Collection Facilities south of WCR 6 <br />33. Please state the distance from the tae of the topsoil stockpile to the Burlington Ditch, and revise the <br />exhibit accordingly. <br />34. The applicant provided a mining offset distance agreement with Public Service Company signed on <br />March 2, 2005. Exhibit C-1 does not show any structures owned by the Public Service Company. <br />Please locate this structure on a map and show the proposed mining offset distances from this <br />structure. <br />35. Attached, please find comments from the Oflice of the State Engineer and the U.S. Army Corps of <br />Engineers. <br />Please be advised that Wattenberg West New 112 Application may be deemed inadequate, and the <br />application may be denied on February 1, 2006 unless the above-mentioned adequacy review items aze <br />addressed to the satisfaction of the Division. If you feel more time is needed to complete your reply, the <br />Division can grant an extension to the decision date. This will be done upon receipt of a written waiver of <br />