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r ~ .r III III III III IIII III ~ - ~ ~ 999 \. HARCOR~pORAEONERN ~~ ~~ jV~',, D ~~ 1 ~ f~9~ .~ November 16, 1992 Division of Minerals and Geology M1N~RALS~U~F~I_,~,, Department of Natural Resources 1313 Sherman St., Room 215 Denver, Co. 80203 Attn: Catherine W. Begej Reclamation Specialist Dear Cathy, In response to your request to update the Division of Minerals and Geology as to the latest reclamation work performed by HWC at the west pit area of the GEC strip mine please review the following. HWC mobilized men and equipment on Thursday November 5, 1992 to the site and began the prescribed work. The focus of the work was to abate the outstanding N.O.V. C-92-17 issued on August 3, 1992. As you know, the N.O.V. relates to the repair of the Diversion Ditch and removal of the lowest check dam in the west pit drainage. The pond had to be dredged out to gain access to the work area in addition to the requirements set forth in the compliance agreement of April 22, 1992 section 22C. Due to the extremely wet condition of the pond, the excavation work required was nearly impossible. During the flash flood which accompanied the heavy rainfall of the week ending August 14, 1992, a very large amount of sediment was deposited in the pond from the area above the west pit (an area of approximately 300 acres), which is drained thru the west pit via the newly built diversion ditch. HWC was able to reconstruct the diversion ditch, reinforce the transition area and remove the lowest rock check dam. HWC was also able to re-establish the other rock check dams as requested by the Division. The excavation of the pond was only completed for approximately 60$ of the original area, again due to the wet conditions. Material taken from the pond, i.e., run-off sediment, was used to reconstruct the Diversion Ditch, establish a bank around the pond in specific low areas and was also stockpiled in the back area of the pond. The balance of the sediment in the pond along with the excess stockpiled material could be used by the contractor doing the reclamation work for Island Creek Coal Co. HWC will, when weather conditions permit, return to the site to stabilize, compact and seed the Diversion Ditch embankment. However, HWC must first determine what course of action will be taken regarding the Diversion Ditch outfall culvert which, as you know, is currently involved in the trespass action brought against HWC by the Corley Company. 4860 Robb Street, Suite 701, Wheat Ridge, Colorado 80033 •1303) 4671239 FAX (303) 4673668