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MINING PLAN 19. Topsoil stockpiling will occur on land adjacent to the anticipated mining area. These stockpiles will be located where erosion off of the piles will not result in excessive sedimentation into adjacent drainageways. The stockpiles should be located where a need to relocate the stockpile is minimized and where replacement of the soil on backfilled land is comparatively easy. See page 26 for uplands and page 31 for lowlands. 20. Topsoil stockpiles will be sloped and prepared for protective seeding. The side slopes will not be steeper than 2:1. See page 26 for uplands and page 31 for lowlands. 21. For stockpiles that are in place into a growing season, the stockpile will be monitored to watch for the growth of noxious weeds. If noxious weeds appear in the stockpile, appropriate action will be taken to eradicate the noxious weeds. Appropriate action maybe the use of herbicides or physical removal of the plants. Normal "tumbleweed" development (Kochia or Salsola) need not be controlled unless the growth is so dense that it endangers the success of protection species that have been planted. See page 27 for uplands and page 32 for lowlands. 22. Protective seeding of stockpiles, when needed, will utilize the seed mixture shown in the "Stockpile Seed Mixture" section of this Mining Plan. All topsoil stockpiles will be placed such that erosion of the stockpile does not discharge sediment into nearby drainages. See page 35 for seed mix. 23. Overburden removal and stockpiling will occur according to the same principles that apply to topsoil removal and replacement. Overburden stockpiling will be separate from topsoil unless it is determined in the pre-mining assessment of that mining site that mixing of topsoil and overburden would not appreciably damage the Tinal plant growth medium. All overburden stockpiles will be placed such that erosion of the stockpile does not discharge sediment into nearby drainages. See page 27 for uplands and page 33 for lowlands. 24. Protective seeding of overburden stockpiles will be done if the overburden is considered suitable for supporting such vegetation. See page 28 for uplands and page 33 for lowlands. Use Topsoil Protection Mix on page 35. 25. Extraction: Once the soil and overburden has been removed, extraction of the sand can ensue. During the extraction of the sand, the only restrictions are: 1. Drainage outlets from the mining area that would directly lead to a nearby natural drainageway will not be created without suitable protection to capture sediment. 2. Appropriate protection for excessive sediment discharge can include the use of hay bales, silt fences, or other suitable measures. A series of small sediment basins can also be used, provided they are large enough to contain the discharge. In most cases such outlets will be avoided or a silt filter approach will be used. Coal Creek Sand Resource Amendment 3 (2005) - M-1988-044 Exhibit D Page 5