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Exhibit D - Mi•g Plan • <br /> Plant and material processing activity will divide materials into diverse and dynamic product <br /> stockpiles [refer to part g, below], that will come and go with unpredictable variations in sale and <br /> production. To the extent possible,product material will surround plant activities to lessen visual <br /> and noise impacts to surrounding properties. <br /> Relative to noise, traffic along Colorado Highway 66 is approximately 70.0±decibels within 100 <br /> feet from the centerline of the Highway. Noise at ground zero, as measured by a hand held meter, <br /> is at 80.0±decibels, dropping to 70.0±decibels at 100.0±feet from the center. The level drops an <br /> additional 5.0±decibels for every 100.0±feet from the center of the crusher and surrounding plant <br /> noise. Plant placement will assure that plant noise is well below that of the nearby traffic on <br /> Colorado Highway 66. Backup sirens and heavy equipment averaged 60.0±to 75f decibels, with <br /> similar decreases in decibel readings from the source measured in a manner similar to that indicated <br /> for the crusher and plant equipment sources. <br /> The location of the scale house and internal traffic at the plant site location will vary depending <br /> upon production levels and areas needed for product stockpiling. Regardless,the scale house will <br /> be located along internal paths for haul trucks, where finished material will be weighed and <br /> disembarked to help build the urban matrix of roads, highways, foundations,etc. <br /> Dewatering and Soil Salvage: Dewatering of the property in preparation for extraction and <br /> resource recovery will occur by establishment of a dewatering pump and/or well in the SouthWest <br /> Corner of the permit boundary in Section 28. Water will be conveyed by gravity flow Eastward <br /> along the existing concrete lined ditch to the existing discharge point 1#11 at the Seep Ditch. <br /> Resource recovery will commence by first removing the upper[A profile/plow layer] four to ten <br /> inches of soil [six (6.0±) inches typical],combined with existing grass or crop stubble. Removal <br /> will utilize scrappers, aided by dozers. <br /> Since salvaged soil stockpiles are temporary, pending reclamation, they will be located in <br /> windrows along the extraction perimeter,nearest the location of removal, for later replacement onto <br /> finished slopes. To the extent practical, windrows will run parallel to prevailing Westerly winds, <br /> and every opportunity will be used to place windrows in a[Wanner to aid in the screening of visual <br /> and noise impacts of the operations. <br /> Since windrowed soil may be removed, deposited and replaced on reclaimed slopes by scrapers or <br /> dozers,the piles must facilitate equipment capabilities,and will take on different shapes. <br /> Stockpiles will appear as long low profile windrows that can be pushed by dozer onto adjacent <br /> slopes;or, as a small hummock approximately the shape of a football,cut in half, that will facilitate <br /> scrapers. The size and height of each soil stockpile will be determined in part by the total volume <br /> salvaged at each location over the length of the windrow. <br /> Until resoiling activity occurs,where stockpiled soils are in place prior to 1 October of any year, <br /> they will be seeded with the mixture specified under Exhibit E,Table E-1: Revegetation Seed <br /> Mixture. A stabilizing cover of vegetation should begin to emerge in the following spring, and <br /> offers opportunity to gage the performance of the seed mixture prior to utilizing it over larger areas <br /> requiring reclamation later in the life of the resource recovery operation. <br /> Once vegetation has established over the initial soil stockpiles,they will remain untouched for the <br /> life of the operation until final reclamation of remaining affected lands takes place. Concurrent <br /> reclamation will utilize soil in an over the shoulder method. In this manner, reclamation of the <br /> entire property is expedited,while the soil stockpiles waiting for final reclamation serve to buffer <br /> visual and noise impacts from the operations. <br /> EXHIBIT D- Mining Plan 3 <br /> Colorado Division of Mineral s& Geology Regular Impact [1121 Construction Material Permit <br /> Sand Land, Inc. - Kurtz Resource Recovery & Development Project -January 1999 <br />