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6 <br />extends beyond corporate limits. <br />t- - _ M- -. c - • <br />The number of acres needed per year for a landfill is dependent <br />upon several variables: <br />-- volume of waste received: the more waste received, the more <br />landfill space needed; <br />-- depth of fill area: how deep and/or high the landfill is <br />constructed defines the physical limits of the area <br />available for waste; <br />-- geometric design of fill,--area: how the fill area is <br />designed, determines the amount of space available for <br />waste; <br />rate of waste compaction: waste is compacted both by <br />garbage trucks and by landfill equipment. Some wastes can <br />be compacted very tightly, others are more difficult to <br />compact; the greater the compaction, the less volume is <br />taken by the waste; <br />-- ratio of cover soil to waste: State rules require a 6 inch <br />layer of soil to be applied to waste in a sanitary landfill <br />daily. Depending upon the design (especially the degree of <br />slope of the fill area) of the fill area, the kinds of <br />waste being covered, the type of soil being used, the <br />amount of compaction achieved for both the waste and the <br />cover material, the amount of soil required can vary <br />greatly. When greater than a 6 inch cover is routinely <br />utilized due to the factors above cited, the area available <br />for waste is reduced. <br />These variables apply only to that portion of a site which is <br />actively used for landfilling. In addition, a site must have <br />adequate buffers around the perimeter as well as around features <br />which are desirous to be buffered such as sensitive natural areas, <br />roads, water features and possibly others. Additional area is <br />needed for roads, drainage facilities (including large <br />sedimentation ponds and detention basins), leachate lagoon(s) and <br />possible treatment facilities; storage areas for equipment and <br />materials, sheltered work areas for employees, and space for scales <br />and buildings for collection of fees and office support. <br />The potential fill areas identified by the consultants could be <br />significantly smaller in size once on -site testing is done to <br />determine the actual presence or absence of bedrock and groundwater <br />and amount of soils, etc. <br />our present landfill's rate of use has varied from a fraction of an <br />acre per year to a projected 3.5 acres per year in the next fill <br />area. <br />