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the town of Alma. This approval will be supplied to DRMS prior to any placement of the plant on site. <br /> The sand and gravel mining area is also shown on Map C-2. The mining of these old piles followed by <br /> regrading will greatly improve the appearance of the site. The following operation parameters are <br /> forecast: <br /> - 12 month per year crushing, screening and washing operation. <br /> - active operation will be maximum 6 days per week, 12 hours per day. <br /> - move an average of 300 tons (200 cy)per hour through the plants while they are running. <br /> -process a maximum of 1800 cy per day of gravel through the plants. <br /> - process and sell an average of 130,000 tons per year from the site of all product materials although a <br /> maximum allowed will be 290,000 cy per year. <br /> - strip an average of 4.5"of topsoil on virgin areas (although they are virtually non-existent in the gravel <br /> mine area) and either directly respread on previously mined and regraded areas or place in a stockpile <br /> for use in reclamation. <br /> - use a combination of 10 yard and 24 yard trucks to haul the gravel products off site. <br /> - use settling ponds in the plant area to trap sediment which will then be stockpiled and used to reclaim <br /> pre-law areas where no topsoil was ever salvaged. Fines stockpile locations are shown on Map C-2. <br /> - allow for a portable asphalt plant to be located on the site for certain job projects, with town of Alma <br /> permission. The plant would only be present for 4-6 weeks for the job and would then be trans- ported <br /> off site. <br /> - allow for a portable concrete plant to be located on site to satisfy specific jobs. The plant would never <br /> be permanently located on site. The concrete and asphalt plants would be located away from the town <br /> in areas that minimize dust, noise, odor and visual impacts. <br /> - install a permanent office/shop building that would be converted to commercial use after the gravel <br /> pit is reclaimed. <br /> - water all roads or use magnesium chloride applications on an as needed basis to keep dust down <br /> - obtain water for the plants from Ponds 3 and 4 using a pump and 8" water line directly to the previous <br /> 110 permit area and then to the new mine area. <br /> - use a takeoff from the Columbia Ditch as an alternate point to obtain water when needed. See Map C- <br /> 2 for this location, which has been in use for many years. <br /> Alma Place Mine 01/15 28 <br />