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<br /> <br />Attachment 3 <br />Emission Calculations <br />Emissions from the mine will be determined by the process equipment <br />to be used, operating practices, and characteristics of the gravel. <br />Operating Practices <br />The mine will be an open pit operation in which a bulldozer will <br />push aggregate. The bulldozer will generally push to a conveyor which <br />will carry the aggregate to a sizing and washing plant. When necessary <br />the bulldozer will stockpile aggregate for a front end loader to transport <br />to the plant. <br />Maximum production is estimated to be 5,000 tons per day (TPD) <br />based on a daylight only operation, five days a week. <br />An additional operation which will influence dust emissions will be <br />soil and overburden removal for which a scraper will be used. <br />Process Equipment <br />D-6 size bulldozer <br />1-10 On-highway trucks <br />11 cubic yard front end loader <br />6 cubic yard front end loader <br />450 ton per hour gravel plant <br />Scraper <br />