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We identified 13 approved SAE's mine wide with the lamest and probably most <br />significant ones recently constructed this past year in the new Elk Creek Mine <br />development areas. These SAE's are designed and accompanied by appropriate <br />SEDCAD runoff demonstrations in Section 9 of PR-4, "Revised and New SAE's and <br />Alternative Sediment Controls ASC's ". We inspected all these areas in Elk Creak and <br />it appears they have been constructed according to design, and are currently <br />functioning as designed. The topsoil stockpile is the largest SAE with minor grading/ <br />seeding work still to'be done this season on undisturbed area runoff ditches and the <br />former haulroad areas to the pile. Most of the 3 separate pad outslopes and major <br />downdrains from SAE's are heavily rock armored and we anticipated will be very <br />durable over time. The pad areas themselves are bermed and designed to diain to the <br />sediment pond at the lower end of the coal conveyor. Given the hectic construction <br />schedule all working areas were for the most part neatly organized, clean, and well <br />maintained. No problems were identified in the Elk Creek A4ine development area. <br />SAE's at the main mine facility were inspected_ According to the pei7nittee no SAE's <br />remain at the mine entrance with the completion of pond A. We discussed the North <br />side of the access road particularly where the coal conveyor crosses to the rail loadout. <br />There is coal along the road inslope area, although it appears the permittee is doing a <br />good job of keeping it removed/maintained. There are altemate sediment control <br />weir/straw bale structures in the road ditch also doing a reasonable job of sediment <br />control. There were no obvious offsite sediment depositions or damage noted here. Mr. <br />Burnell and the permittee should decide whether this area should be classified as an <br />SAE, and monitor the altemate sediment control <br />structures and coal removal/maintenance for effectiveness. Other SAE's inspected <br />included: D-seam portal storage area, Sanborn Creek conveyor and portal areas, <br />Hubbard and Bear Creek reclaimed facilities (all the reclaimed areas are stable), and <br />four de-gas drill pads which are also recent developments. Al] areas inspected were <br />currently stable. DugouUsump coal sediment material removed and temporarily stored <br />at the conveyor needs to be permanently removed as soon as it is dry. <br />Discussions on all li SAE's identified are found somewhere in PR-4. Some of these <br />SAE's may be affected next year as the Sanborn Creek Mine and conveyor are <br />reclaimed. The permittee should address updated designs/demonstrations for SAE's <br />that will be redisturbed, and for other areas as reclamation progresses. Light use roads <br />that were used for fire sunnression at the Sandorn Creek Mine should be <br />reclaimed as soon as possible unless there are specific permitted activities <br />associated with them. The permittee is doing maintenance on BLM light use roads <br />which support public access above the mine and are being used as access for de-gas <br />activity. This concluded the inspection. There were no offsite impacts associated with <br />the 5AE's inspected. The permittee should be commended for the well-organized <br />major construction effort at the new Elk Creek Mine. There were no offsite impacts <br />associated with this development and it appears very well constructed and maintained. <br />Please address an }' questions concerning this inspection report to Henry Austin at <br />haustin@osrme.sov or to (303) 844-1400 x1466. <br />