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6.4.4 EXHIBIT D — Mining Plan <br />a. method of mining — A dozer, loader and/or trucks will be used to push, load and <br />haul topsoil to the topsoil stockpile. Depth of the topsoil ranges from 1 -12 inches. <br />1 -12 inches of topsoil will be removed and segregated. This stockpile will be kept <br />safe from damage and contamination from mining activities by isolating it away <br />from these activities. After the topsoil is relocated, the dozer and loader will <br />commence to excavate material (pit run). The loader will dump the pit run into the <br />hopper that feeds the crusher or screen, dumping onto the flat belt(s) that dump(s) <br />into trucks or onto a stacking conveyor that dumps the processed material on to <br />the processed material stockpile. A contractor may process this pit run in a similar <br />manner. <br />b. Earthmoving — earth moving will commence at the northern portion of the pit, <br />moving to the southern, then western areas. <br />c. Water diversions & impoundments — water diversions and impoundments will be <br />constructed only to prevent storm water runoff. The size of the diversion/berm <br />will be approximately 1- 1 '/2 feet in height, a typical motor grader moldboard's <br />height. The location of the diversion/berm will be approximately 5 feet inside the <br />permit boundary where existing slopes allow, further inside if necessary. A small <br />impoundment "pond" may be utilized toward the NW corner of the site to prevent <br />storm water runoff. Captured water will be allowed to evaporate naturally or will <br />be filtered prior to exiting the site. <br />d. Size of area to be worked at any one time — app. 10 acres <br />e. App. time table describing the mining operation — earthmoving will be ongoing as <br />needed since this is an expansion of an existing pit. We'll reclaim excavated sites <br />when practical as excavation to adjoining areas occurs using these materials to <br />reclaim previously excavated areas. <br />i. Estimated time for each stage — the entire excavation of the site should take <br />app. 20 years. There will be periods when this pit is idle but still active. <br />Reclamation should be completed within 5 years once mining activities <br />cease. <br />ii. Description of size and location — we're anticipating the size to be app. 10 <br />acres being worked at any one time. The location will vary as deposits are <br />exhausted. <br />iii. Sequence of each stage — we're anticipating starting at the northern portion <br />of the site, mining toward the south then west. <br />f. <br />g. <br />i. Nature, depth and thickness of product to be mined and overburden — nature <br />of the product is rock to be processed into road base, depth to product from <br />current surface elevation varies from appr. 6" to appr. 5', product thickness <br />varies from appr. 5 to appr. 25 feet. The type of overburden to be removed is <br />a rock and dirt mixture. <br />ii. Nature of the stratum immediately beneath — nature of stratum immediately <br />beneath the material to be mined appears to be sand stone <br />Primary and secondary commodities — primary commodity is road base; intended <br />use: road base for County Roads. Secondary products, if encountered, are 1. big <br />Page 2 of 6 <br />