2015-02-18_REPORT - C1981014 (3)

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Introduction Several small land issues that may have resulted from the operation of Energy Fuels Coal, Inc., Southfield Mine (permit number C -81 -014) in Fremont, County, Colorado were addressed in 2014 by Mergen Ecological Delineations, Inc. of Colorado Springs, Colorado. This report addresses issues on the Corley property, a separate report will document similar work on the Cribbs /Jackson property. Work tasks included the following: 1. repair and reseeding of four small areas of subsidence, 2. removal of plastic fabric that surrounded a sealed drill hole and reseeding, 3. removal of PVC pipe along a water line that was used by Energy Fuels Coal, Inc., 4. reseeding previously repaired subsidence holes near the Thompson property and Newlin Creek, 5. placement of a steel collar on a potential water well site, and 5. filling in an erosion gully that exposed PCV pipe and reseeding. A brief description of work accomplished and photographs of completed work and some pre - work photographs are included for each task. A map (Figure 1) and GPS coordinates are included to identify the locations (sites) where work was completed (Table 1). Table 2 is the approved seed mix that was provided by Energy Fuels Coal, Inc. and used to reseed areas discussed in this report. Project Area The project area for these projects were conducted on the Energy Fuels Coal, Inc. Southfield Mine site (permit number C -81 -014). Figure 1 is a vicinity map of the project area and each site number below corresponds to a specific task. Methods and Results Repair subsidence cracks A photograph of each subsidence site was taken before work began and a photograph of each site was taken after work was completed to document repair. Soil, rock, and sand material from nearby or offsite was used to fill cracks to the soil surface contour of the surrounding area. One subsidence area was filled with 80 pounds of concrete since the hole was located within a drainage -like channel (Site 4). Topsoil from nearby or offsite was placed to cover the upper profile of repair. An approved seed mix (Table 2) provided by Energy Fuels, Inc. was hand broadcast and raked into the soil surface of the repaired area. Soil was compacted to provide better soil -seed contact. Mulch material from nearby was added to soil surface to reduce raindrop impact, slow overland flow, and increase soil moisture. Site 01 - Site 04 are four sites where subsidence was repaired by filling the holes and cracks in the soil surface with rock, gravel, and soil. Site 05 was where a plastic fabric was removed from around drill hole SF85 -03. Site 06 represents a linear site where PVC pipe from an old water line used by Energy Fuels Coal, Inc was picked up and disposed. Site 07 was a site where subsidence had occurred and was repaired and reseeded in the past. This site (07) was only reseeded since the original seeding result was patchy. A steel pipe collar was placed around well SF87 -09 and cemented into place at Site 08. An erosion gully that exposed some PVC pipe was filled, reseeded, and had some erosion control installed to prevent future erosion at Site 09. The area the fill was collected from for Site 09 was also reseeded.