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3. Provide actual calculations to show how the life expectancyDroiectiOn was derived. RESPONSE: The site contains 65 acres within the boundaries shown on the Site Development Plan. The entire 65 acres are permitted for use as a landfill. The site had previously been 66 acres. However, as a result of the annexation of the Weston Ranch Subdivision, it was necessary to extend Downing Avenue across the southernmost Up of the landfill. An area of approximately 1 acre has been deleted from the landfill to allow for the extension of Downing Avenue Into the Weston Ranch Subdivision. A Pacific Gas and Electric Company gas line will parallel the extension of Downing Avenue. The revised site boundaries are depicted on Figure 2. Most of the Franc Camp LwWftH site has been covered with at least 15 feet of wastes. The stud:s necessary to develop a final grading and drainage plan and detailed plan of operation for the landfill are scheduled for completion with the Report of Waste Discharge In July 19M The City Public Works Department foresees the landfill site being divided and fitted In a series of modules. A December 1988 report by EMCON Associates Indicated the site could accommodate an addRbnW 1.45 million cubic yards of waste and provide a service We of approximately 22 years, based on the following c riterta (SID, Section 3.1): • Final landfill slopes at 4.1 (horizorft.-venical). • Maximum fill height Is 60 feet mean sea level. 11, 4, • Landfill area Is Wacres. • Waste•to-soll ratio of 2:1. • Compacted refuse density of 1,000 pounds per cubic yard. • Site operates 250 days per year. • Average dally waste stream (not peak volumes) is 125 tons per day. • Final soil cover profile Is 4 feet thkdc. PJB160218020202A 15 Rev. 0 March 30, 1990