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Equipment Procurement ( cont 'd) <br /> For the trenching operations and for a daily cover of refuse, <br /> a self-propelled tractor-scraper of 11-cubic yards will be required. <br /> A self-loading scraper of 11 cubic-yard capacity has been <br /> estimated at $50, 000 . The scraper is required for trenching <br /> and daily cover operations . <br /> Lease purchase for the scraper has been estimated at $1, 000 <br /> per month for 60 months . $1, 000 x 60 = $60, 000 $603000 <br /> 50,000 <br /> 103000 interest <br /> Visits to various County landfill operations indicated a <br /> predominant use of tractor type equipment for spreading and com- <br /> pacting refuse. Equipment maintenance records of Orange County <br /> indicated tractor type equipment to be most economical. <br /> Orange County purchases equipment on a basis of repair guaranty <br /> to 6000 hours . This basically is the breakpoint of the equipments ' <br /> economic life. <br /> Equipment procurement may be purchased by several methods . <br /> Some of the methods are as follows : <br /> 1. Outright purchase with one year warranty . <br /> 2. Lease purchase <br /> 3. Total cost bidding <br /> 4 . Lease <br /> The method used by most agencies is outright purchase with a <br /> warranty of 2000 hours of one ,year of use. This appears to be <br /> a usual guaranty on parts and labor. <br /> On landfill sites which are open to the public on a 7-day <br /> week basis, the equipment would amass 2880 hours per year. <br /> The breakpoint on landfill equipment, particularly the <br /> ® 13 - <br />