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2006 Subsidence and Geologic Field Observations
<br />Box Canyon, West Flatiron, Apache Rocks, and South of Divide Mining Areas
<br />6.0 REFERENCES
<br />Dunrud, C. Richard. 1999. Subsidence Field Observations - September 15-17, 1999.
<br />Memorandum to Christine Johnston, Mountain Coal Company, LLC. Denver, CO:
<br />Wright Water Engineers, Inc.
<br />-----. 2000. Subsidence Field Observations -August 28-30, 2000. Memorandum to Henry Barbe,
<br />Mountain Coal Company, LLC. Denver, CO: Wright Water Engineers, Inc.
<br />-----. 2001. Subsidence Field Observations, West Elk Mine, August 28 and 29, 2001. Denver,
<br />CO: Wright Water Engineers, Inc.
<br />-----. 2002. Subsidence Field Observations, West Elk Mine, August 27-29, 2002. Glenwood
<br />Springs, CO: Wright Water Engineers, Inc.
<br />-----. 2003. Subsidence Field Observations, West Elk Mine, July 22-24, 2003. Glenwood Springs,
<br />CO: Wright Water Engineers, Inc.
<br />--- -. 2004a. Subsidence and Geologic Field Observations: Apache Rocks and Box Canyon
<br />Mining Areas, July 12-I5, 2004. Glenwood Springs, CO: Wright Water Engineers, Inc.
<br />-----. 2004b. Exhibit 60C: Subsidence Evaluation and 2004 Geologic Hazard Field Observations
<br />for the West Flatiron Lease Area. Glenwood Springs, CO: Wright Water Engineers, Inc.
<br />-----. 2004c. Exhibit 60D: 2004 Geologic Hazard Field Observations for the South of Divide
<br />Mining Area. Glenwood Springs, CO: Wright Water Engineers, Inc.
<br />--- -. 2005. 2005 Subsidence and Geologic Field Observations Box Canyon, West Flatiron,
<br />Apache Rocks, and South of Divide Mining Areas. Glenwood Springs, CO: Wright Water
<br />Engineers, Inc.
<br />Dunrud, C. Richard, et al. 1996. Exhibit 60A: Subsidence Evaluation of the Revised Mine Panel
<br />Layouts in Section ZI and Sections 26 and 27. Denver, CO: Wright Water Engineers, Inc.
<br />-----. 1998 rev. Exhibit 60: subsidence Evaluation for the Apache Rock Mining Area and Box
<br />Canyon Lease Tract. Denver, CO: Wright Water Engineers, Inc.
<br />831-032.750 Wright Water Engineers, Inc. Page 43
<br />December 2006
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