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5. In order to minimize damage to vegetation outside the construction limits of the dam access road, the following construction technique will be used. Upon completion of clearing and topsoil removal operations within the construction limits, a buckwall, 5 to 10 ft. in height, will be built of rock at the toe of the slope. An illustration of the technique is presented on attached Figure 2. 6. The reclamation of the abandoned portions of the old Davis Gulch to Middle Fork access road will consist of backfilling where possible with a backhoe, followed by reseeding with the permanent mix for the process plant site. Timing of the work depends primarily on completion of the road for which the amendment is pending, but we expect that the work can be completed in time for fall (1982) seeding. 7. The only artificial talus slopes covered under this amendment are the new out slopes of the plant site fill, the dam access road fill slopes, and the slopes associated with the Middle Fork rock borrow site. For the plant site (1.75:1) and dam access road (1.5:1) fill slopes, distances from working benches are all less than 100 feet and generally less than 25 feet. Revegetation of these particular slopes covered by this amendment therefore should not present major problems and will be done. As discussed in the 1981 Annual Report, the Middle Fork rock borrow site will be backfilled with material having properties which render the material unsuitable for dam construction. Borrow area slopes will be constructed to resemble the natural talus slopes in the area (see Figure 3). We are investigating methods to revegetate slopes which are too steep on which to operate equipment safely and too extensive to revegetate by broadcast techniques. Results of research plot work scheduled for 1982, along with the revegetation work conducted this past fall along the west access road to the topsoil stockpiles, should aid in steep slope revegetation efforts. Considering that safe and practical methods of revegetating extensive steep slopes have not been adequately demonstrated, the success of such revegetation efforts can not be assured. However, we will attempt to revegetate the steep slopes associated with the Middle Fork rock borrow site covered by this amendment. 8. Final slopes of the plant site expansion area are the same as the other fill slopes at the plant site, namely 1.75 to 1. In the vicinity of the largest fill along the north edge of the site, the natural slope is 1.9 to 1. The proposed fill slope of 1.75 to 1 is not significantly different from the natural slopes. 9. Refer to response #2 for topsoil information on the Parachute laydown area. Exxon provided the soils and revegetation information contained in Exhibit II of this letter to Ramsour Brothers, the Colorado Division of Highways' contractor for the highway borrow area at the Mahaffey Ranch. Ramsour Brothers are contractually obligated to follow the procedures given in Exhibit II.