1993-09-20_GENERAL DOCUMENTS - C1981017 (2)

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EXHIBIT 1 - STEEP SLOPE RECLAMATION AT COAL BASIN Project ID Steep Methods Employed Cost/Cost Evidence of Evidence of Comments Slope per Acre DMG Vegetative Acres Monitoring for Success Reel. Success Mine 5 ANIL 1.0 1) Brushlayering(crimping $29,000/$ None, although None. See According to DMG, this method Project completed plants into the slope at frequent 29,000 the closeout Pictures. was"proven in Europe". Very in 1991 by DMG intervals) and 2)triangular flat report powerful evidence of expensive project manager areas with bunches of tree recommends that work over the long term that is Paul Krabacher tublings 3) Broadcast and/or monitoring be unsuccessful. hydroseeding done. Mine 3 Steep Slope 10.0 1)Anchoring logs parallel to the $40,000/ None. Minimal to Some logs are still present on the completed in 1995 slope with long bolts and 2) $4,000 none. See slope but vegetation is very hydroseeding pictures. minimal. Mine 4 Steep Slope 1.25 Imprinter machine lowered $8,315/ None. Minimal A significant washout on the completed in 1997. down the slope followed by $6,652 slope occurred within 1 year after hydroseeding completion. This is a huge error in steep slope reclamation. Mine 4 Steep Slope 3.9 Hydroseeding followed by $36,948/ None. Minimal. Experimental and very expensive. completed in 1997 Bonded Fiber Matrix Mat $9,474 Mine 4 Steep Slope 6.75 No slope preparation. Only $2604/ None. Minimal. Has never been successful in Coal completed in 1997 hydroseeding with tackifier $3,953 Basin. North Basin Bid ? Create small benches every 2 ? Project not yet Not yet This work was stopped by the feet on the slopes by lowering done. performed. lawsuit. In addition to being workers down on cables(up to unsafe, the benches will require 900 feet down) then bringing cutting and filling in a slope that seed and mulch in, a few bales is already at angle of repose. The at a time, by 4 wheeler on long benches will be washed out by roads to not disturb existing rains and massive snowfall. reclamation on road surface. In addition to ignoring the test plot monitoring data taken over the years, which shows worsening results over time, DMG has consistently ignored monitoring of any type and continues to try anything possible on the slopes to get success with no proven method found yet. Unfortunately, it would he extremely poor judgement on the part of the DMG to spend large sums of money "experimenting" on the steep slopes and then run out of money to do conventional reclamation in areas such as the heavily traveled confluence of Coal Creek and Dutch Creek, where reclamation is proven and will work. 6