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Spot spraying was conducted for noxious weed infestations in 2007 as a follow-up to the 2005-2006 <br />concentrated weed control program. Spraying was completed by BTUEC Mine Environmental Staff and <br />one of the grazing lessees. Targeted weed species included Russian knapweed, leafy spurge, <br />Houndstongue, hoary cress (white-top), Canadian thistle, and tamarisk. Selective herbicide applications <br />utilized 2,4-D amine, Banvel, Escort, triclopyr (tamarisk), and Activator 90. Spraying was conducted <br />from June through October. <br />Areas treated included, but were not limited to: <br />- Roadsides (main entry road, all roads on the plateau area south and west of the road leading to <br />the 7-North Angle Well, and portions of the main entry roads in both the east and west mine <br />facilities areas) <br />- Refuse Pile area <br />- No. 9 Mine Shop area <br />- Areas in and surrounding the west Mine Facilities area (i.e. Water Treatment Ponds, <br />Office/Warehouse, Bathhouse, Coal Handling Facilities, Railroad Spur, Wastewater Treatment <br />areas, and yard areas) <br />- The open meadow to the north of the reclaimed Mine No. 4 portals <br />The 2006 tamarisk treatment program, which focused on infestations in the vicinity of the water treatment <br />ponds and sewage lagoons, and in the southern portion of the property (over an area of roughly 20 acres) <br />located adjacent to agricultural lands, was effective in eliminating tamarisk in the treated areas, with no <br />regrowth. <br />Three lowland hay meadows (south of the stacking tube, north of the water treatment ponds, and west of <br />the railroad) were hayed during the year. BTUEC is working with a local rancher to contract agricultural <br />cropping activities for restoration of several disturbed areas where low cover values and weed/rodent <br />infestations are a concern. <br />Attached are copies of the standard form (CDRMS) Annual Reclamation Report for 2007. If you have <br />any questions or require further information, please feel free to contact me at your convenience. <br />Sincerely, <br />For BTU <br />gyp,%~ <br />_~~ <br />Jerry ton <br />Enviro e al Manager <br />file:G:\Enuironmental\Empire\ARR\BTTJEC Annual RecL Report 2007.doc <br />