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Colorado Division of Reclamation, Mining & Safety 14 December 2006 Page 3 of 4 • 171 acres were permanently reclaimed via re-vegetation during the years 1982- 1984. •. An additional 110 acres associated with disturbed areas above the Middle Fork Dam and Reservoir and all side slopes on the Dam Access Road were reclaimed. • 4 acres in the Switchyard Fill area were re-vegetated in 1989. The reclamation work has been accomplished in accordance with the approved reclamation plan and also through application of several advanced efforts and techniques to improve the success of the vegetation taking root. These additional efforts included: • Using select hay mulch from the Upper Colorado Environmental Plant Center or From farmers with certified fields to minimize the invasion of unwanted species. • Use of custom developed seed mixes, including shrubs, forbs, and special cultivars, obtained from the UCEPC. • Experimentation with varying the seeding schedule. For example, in Area 19B forbs were seeded in the first season, followed by seeding with grasses the following year to give forbs a head start over the faster growing grasses. • Harvesting shrub seeds and cuttings from the Colony property for several species not readily available commercially, contracting with a nursery to grow seedlings from the cuttings, and planting thousands of the seedlings. • Collecting seed from two rare plants (Barnaby's Columbine and sedge fescue) and re-establishing communities of these plants on site. • Inoculating shrub plantings with microrhyzal fungi to enhance shrub survival when competing with more aggressive plants. In addition, ExxonMobil proposes to develop, in consultation with DRMS, a plan for further reclamation at the Colony Project site to be accomplished over the next five years. Change in Use of Parts of the Colony Project Permitted Area It is contemplated that future oil and gas drilling activities (for conventional oil and gas recovery in formations underlying the oil shale resource) will occur on the Colony Shale Oil Project lands. These activities may begin as early as 2007. It is expected that the Colony Project roads will be needed to allow access for these drilling and producing activities. Also, the Colony Project roads maybe used to access the southern part of the Piceance Basin for oil and gas activities. The approved Colony Project reclamation plan contemplates that some areas of the Project may be used as roads, long-term water resources, or industrial use rather than returning the land to agricultural or rangeland uses. With the current oil and gas activity in the Piceance Basin area, it is evident that the access roads on and off-site are needed for other industrial uses. The Parachute Terminal/Staging Area is also needed to support oil and gas activities in the area. ExxonMobil intends to retain the Colorado River water intake site as a water withdrawal and pumping plant for industrial use along with the Middle Fork Reservoir.