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' EXHIBIT "D" <br />MINING PLAN <br />UNA PIT <br />' 1. The pit limits, plant and stockpile area and haul roads will be staked <br />before any mining is started. The contractor will be required <br />to keep his operations within the staked areas. <br />' 2. Tall brush and trees will be stripped from areas that are to be dis- <br />turbed. large trees will be made available to the owner at their <br />request. Tall brush and treys not salvaged will be buried in the southern <br />' pit slopes as directed by the engineer. <br />3. The top one foot of soil overburden, low brush and grass will be stripped <br />' from the area to be mined and stockpiled for use in reclaiming the dis- <br />turbed areas. This will amount to approximately 114,901 cu. yds. for the <br />total pit area to be mined. Only the pit area to be mined at any one time <br />will be stripped. <br />4. The excavation will begin at the westerly end of the area and move in an <br />easterly direction taking the full width and depth of usable material, all <br />reasonable means including pumping will be used to excavate the full depth <br />of usable material. Water pumped from the pit will be settled before being <br />discharged in to the river. <br />' 5. Any excess soil overburden will be stockpiled and used to contour the pit ex- <br />cavation prior to the placement of the top one foot of soil overburden. <br />' 6. Any oversized material will be buried in the southerly pit slope. <br />7. The contractor may use any type of equipment he thinks is best suited to <br />' excavate the material from the pit. The excavated material may either be <br />hauled directly to the project or processed and stockpiled for later use <br />on the project. <br />' 8. A small island will be left in the easterly end of the pit. <br />9. When work in the pit is completed the slopes will be left no steeper than 3:1 <br />' and the floor will be left in a smooth condition. <br />10. Reclamation will be as outlined in the reclamation plan. <br />_ 11. The pit will be worked at various times, after each use any disturbed area <br />in which all work has been completed will be reclaimed. <br />12. Timetable: This pit will be used for more than one project in the area. The <br />timetable for each project will depend on the amount of material required. <br />A typical timetable is shown below: <br />- A. Clearing brush and trees. 3 days <br />B. Remove and stockpile to 12" soil overburden. 6 days <br />C. Excavate sand and gravel. 120 days <br />D. Slope and grade pit 8 days <br />E. Place approximately 12" soil overburden. 8 days <br />F. Fertilize, seed and mulch disturbed areas. 5 days <br />