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TR-07 MINING PLAN <br /> REQUIREMENT 13: Protective seeding of overburden stockpiles will be done if <br /> the overburden is considered suitable for supporting such vegetation. <br /> Discussion: Most overburden is far too infertile to support much growth other than a <br /> minor amount of weedy annual species. Therefore, primarily grading will be used to reduce the steepness <br /> of stockpile sideslopes. <br /> REQUIREMENT 14: Extraction: <br /> Once the soil and overburden has been removed, extraction of the sand can occur. During <br /> the extraction of the sand, the only restrictions are: <br /> 1. Drainage outlets from the mining area that would directly lead to a nearby natural <br /> drainageway will not be created without suitable protection to capture sediment. <br /> 2. Appropriate protection for excessive sediment discharge can include the use of hay bales, <br /> silt fences, or other suitable measures. A series of small sediment basins can also be used, <br /> provided they are large enough to contain the discharge. In most cases such outlets will be <br /> avoided or a silt filter approach will be used. Sediment basins often create more disturbance <br /> which needs to be reclaimed and almost invariably the basins turn out to be too small to be <br /> effective in major storm events. <br /> 3. The depth of mining will be as deep as necessary to remove the sand resource. <br /> Stockpile Protective Seed Mixture <br /> When soil or overburden stockpiles are seeded they will be planted with the following mixture. <br /> This mixture is based on a broadcast seeding of the stockpile. In the event the stockpile is drill seeded (not <br /> recommended slopes steeper than 3:1 due to the hazard of operating equipment on steep slopes) then the <br /> seeding rate will be divided in half. <br /> Coal Creek Sand Resource Amendment 3 (2005)- M-1988-044 Exhibit D Page 12 <br />