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the purpose of after hour equipment maintenance and crushing activities within the permitted <br /> hours in the winter months while the days are shorter. Portable toilets will be located on site for <br /> the use of employees. All mining structures on site are shown on Map C-2. The portable <br /> mining equipment such as loaders, dozers, trucks, and excavators will be serviced on an as- <br /> needed basis onsite. Upon reclamation, all portable equipment will be removed from the site. <br /> There will be no new fence around the operation since it is inside private property. No problems <br /> are expected with vandalism. It is extremely unlikely that any toxic or acid-producing materials <br /> will be encountered during the mining operation since the past mining shows that the material is <br /> alluvial in nature. However, in the event that such materials are encountered, they will be <br /> covered with subsoil and topsoil from the stockpiles to the same depths outlined in the <br /> reclamation plan and no more mining will occur in this area. <br /> The operator commits to clearly marking the permit boundary with stakes surveyed on site. <br /> The site will use all existing roads to haul the product to its final destination. It is planned that <br /> the material may be used to re-surface existing roads, make concrete aggregate or provide new <br /> road base for any new roads within an economic distance to the site. <br /> Several hazardous materials will be stored and used onsite throughout the project. These <br /> materials include products which are associated with diesel motors, and products associated <br /> with asphalt and concrete production. <br /> A 1994 agreement with Delta-Montrose Electric Association (DMEA) and the previous pit <br /> Operator states that a 25-foot radius will be maintained at a 1.5H:1 V slope around each existing <br /> 46 kV transmission line power pole. However, on at least one side of each power pole a at least <br /> 15 foot wide fairly flat area will be maintained to accommodate line repair equipment. It is <br /> advised to maintain this 15-foot-wide pad on the west side of each power line. <br /> 4. Topsoil and Overburden Handling <br /> Topsoil ranges from 3 to 24 inches thick on site, 12 inches is the anticipated average. Up to two <br /> feet of overburden can be found on site, but most is expected to be around 1.5 feet thick. Both <br /> topsoil and overburden are used on site for reclamation of mined out areas. In the event that <br /> BDF, LLC needs to store topsoil or overburden in a berm, it will store this material either within <br /> the footprint of the current pit, or in the designated topsoil stockpile storage area in Area 1. Any <br /> topsoil or overburden stockpile that is to be in place longer than 180 days will be vegetated to <br /> prevent wind erosion. Anticipated topsoil and overburden quantities are shown in Table D-2. <br /> These are estimates based on site drilling and existing operations. <br /> Table D-2 Estimated Topsoil and Overburden Quantities <br /> Area Overburden Topsoil Quantity <br /> Quantity <br /> 1 23 16,02,9 CY <br /> 2 21,514 CY 14,343 CY <br /> Base Products Gravel Pit 2 <br /> April 2022 D-4 [ewicki&Associates <br />