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2011 Reclamation Report <br />Southfield Mine <br />abandoned Vento mine office building; <br />* Reshaped `bar trenches' across road to direct sheet flow to road ditch above the intersect of <br />CR92 & the refuse pile road and a road section east of Pond #5; <br />* Cleaned /graded road ditch near intersection of CR92 & refuse pile road; the steep section of <br />the refuse pile road and the CR92 ditch that flows toward the old Vento building; <br />* Cleared sediment build -up from the discharge end of the southmost Inlet Culvert in Pond 5 <br />Map 1, Mine Site Reclamation, portrays the general location, dates, and areas of revegetation and <br />reseeding in and adjacent to the former Mine Facilities area. In addition, the map indicates the <br />locations of Mine Site reclamation activities completed during 2011. Dates of revegetation and /or <br />reseeding for the ancillary facilities areas and the Loadout area are shown on Map 2, Ancillary <br />Facilities Areas Reclamation, and Map 3, Loadout Area Reclamation, respectively. <br />Disturbed, Backfilled and Topsoiled Areas <br />No additional areas were disturbed, backfilled, or topsoiled during the reporting period. <br />Previously, during May 2007, a small sinkhole had formed on the northeast flank of the refuse <br />pile south of and adjacent to Pond 4. It was approximately 15 ft in diameter and 6 to 8 ft deep. Al <br />Weaver of Weaver Engineering Services determined from old works maps that the subsidence <br />was from the east portion of the abandoned Canon Shamrock Mine. The subsidence was <br />immediately backfilled and compacted with material borrowed from the south shore of Pond 4. <br />The site was then reseeded with the approved seed mix. The site is inspected on a routine basis <br />and no further disturbance or settling has been observed. <br />Seeded or Planted Areas <br />During October, 2004, interseeding of approximately 6 acres at the Mine Site, comprising lands <br />owned by the Corley Company, was completed at the end of October. EFCI previously seeded <br />and mulched this area during site revegetation activities in October 2003. Due to some confusion <br />in dealing with the changing wishes and needs of two different landowners concerning seed <br />mixes, EFCI inadvertently applied an incorrect seed mix on the Corley property in 2003. To <br />correct the seeding with the approved seed mixture on the Corley property, EFCI submitted a <br />plan to the DRMS proposing interseeding of the grass species Indian Ricegrass and Beardless <br />Bluebunch Wheatgrass. Upon approval, EFCI broadcast interseeded the referenced area (October <br />2004) at a rate of 1.4 and 3.1 pounds PLS /acre of Indian Ricegrass and Beardless Bluebunch <br />Wheatgrass as was previously reported. <br />As stated in previous Annual Reclamation Reports, during the year 2004, EFCI planted shrub <br />clumps in the reclaimed facilities and refuse disposal areas at the Mine Site in accordance with <br />permit requirements and in response to landowner preference. Accordingly, during May 2004, <br />approximately 1,800 plants were purchased from and then planted by the Colorado State Forest <br />3 <br />