2003-10-10_GENERAL DOCUMENTS - C1981018

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TR-57 was submitted on 24 May 2002, called complete on 28 May 2002 and approved on 8 July 2002. This revision allowed for the construction of an additional B-Seam return air shaft (RS-3) and an associated light use road within the Deserado Mine permit azea. TR-58 was submitted on 12 August 2002, called complete on 16 August 2002 and approved on 23 August 2003. This revision provided modified designs for permanent ditches and specific design information for temporary "in pit" ditches at Refuse Area RP-Sa. This revision was submitted to abate Notice of Violation CV-2002-016. MR-119 was submitted on 23 May 2000, called complete on 23 May 2000 and approved on 7 June 2000. This revision allowed for drilling of one additional coal development hole within the Deserado Permit Area. Hole #310132-24 would be used to define the start line for B Seam Longwall Panel #2. MR-120 was submitted on 3 May 2001, called complete on 3 May 2001 and approved on 7 May 2001. This revision provided minor updates to Map 147, "Small Area Exemptions Location Map" and includes documentation for two small azea exemption sites not previously addressed. MR-121 was submitted on 17 May 2001, called complete on 21 May 2001 and approved on 16 July 2001. This revision allowed for the drilling of three development drill sites, with associated light use roads, within the existing permit area. MR-122 was submitted on 27 July 2001, called complete on 2 October 2001 and approved on 3 October 2001. This revision provided a table and amended map listing applicable sediment demonstration designs for specific soil stockpiles and drill sites within the Deserado Permit Area. MR-123 was submitted on 24 August 2001, called complete on 27 August 2001 and approved on 4 September 2001. This revision allowed for tlae addition of a dust control additive (coherex) tank adjacent to the rock dust silo on the rock dust shaft pad azea. The installation included a concrete containment structure. The revision did not include any new surface disturbance. The revision also updated the Air Quality Permits for the mine. MR-124 was submitted on 3 Apri12002, called complete on 10 Apri12002 and approved on 10 Apri12002. This revision allowed for the shortening of Diversion Ditch SB west of Refuse Area Sa, by directing the ditch into a stable natural drainage approximately 200 feet up-gradient from the existing point where the ditch ends at a steep arroyo. MR-125 was submitted on 16 September 2002, called complete on 19 September 2002 and approved on 19 September 2002. This revision updated permit exhibit map 77A to show correct location of the west entrance to refuse azea Sa, with a formerly proposed culvert eliminated. Due to location of the entrance, a culvert is not necessary.