Kayenta Mine Complex
Life of Mine Significant Revision
The Draft Environmental Impact Statement and PWCC’s Life of Mine Significant Revision are currently suspended.
The Draft Environmental Impact Statement for the Navajo Generating Station-Kayenta Mine Complex Project is available for viewing and can be found on the Bureau of Reclamation’s NGS informational page at https://www.usbr.gov/ngs/index.html.
OSMRE CHIA
The Kayenta Mine Chia is available for review at this location:
https://www.wrcc.osmre.gov/initiatives/CHIAS/kayentaComplex.shtm.
Life of Mine Significant Permit Revision Application
On May 1, 2012, OSMRE received a Life of Mine (LOM) significant permit revision application from Peabody Western Coal Company (PWCC) for the Kayenta Mine Complex (KMC). This May 1, 2012, permit revision application was updated by PWCC on December 18, 2013, and February 10, 2014, and May 2, 2014. The LOM permit revision application includes the following information:
- Expansion of the Kayenta Mine permit boundary to incorporate support facilities located on the former Black Mesa Mine area. The support facilities proposed to be added to the Kayenta Mine permanent program permit area are those located on the Black Mesa Mine that are being used to support mining on the Kayenta Mine. Adding the 841 acres of Black Mesa Mine support facilities (maintenance shops, roads, utilities, impoundments, administration offices, fuel storage sites, warehouse, equipment storage areas, company airport, monitoring stations, etc.) to the Kayenta Mine AZ0001E Permit area will also involve adding the 18,857 acre Black Mesa Mine area to the AZ-0001E permit area, and, if approved, referring to the new permitted area (including the Kayenta active mine pits and all facilities supporting this mining) as the ‘Kayenta Mine Complex’. This significant permit revision application does not include a proposal to mine any of the Black Mesa Mine coal reserves.
- An updated mine plan to identify the timing and sequence of continued coal mining operations through December 22, 2044. Mining is proposed to occur in the J-19, J-21, J21 West, J-28, N-9, N-10, and N-11 Extension, coal resource areas.
- The application includes environmental baseline information collected for the coal reserve areas for soils, vegetation, geology, and hydrology as well as the most current Navajo aquifer groundwater modeling information and updated probable hydrologic consequences (PHC).
- The permanent realignment of Navajo Route 41.
Document Submittals
May 1, 2012 Submittals (Updated 12/18/13 to 05/02/14)
May 1, 2012 Original Submittals
December 18, 2013 Submittals
Title Size Type December 18, 2013 Cover Letter (326 KB) 
Volume 18 85210 NE (1.65 MB) Volume 18 85210 NW (2 MB) Volume 18 85210 SE (2.01 MB) Volume 18 85210 SW (1.60 MB) Volume 20 85360 NE (2.23 MB) Volume 20 85360 NW (2.32 MB) Volume 20 85360 SE (2.37 MB) Volume 20 85360 SW (1.99 MB) Volume 21 85400 K9 (1.75 MB) Volume 21 85400 K10 (1.66 MB) Volume 21 85400 L10 (1.70 MB) Volume 21 85400 L11 (1.74 MB)
February 10, 2014 Submittals
Title Size Type February 10, 2014 Cover Letter (300 KB) Volume 11 Chapter 18 (20 MB)
May 2, 2014 Submittals
Title Size Type May 2, 2014 Cover Letter (746 KB) Volume 1: Chapter 3 (1 MB) Volume 11: Chapter 18, Attachment 11 (13.2 MB) Volume 11: Chapter 18, Pages 45-48 (246 KB)
