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Ltr to San Joaquin Local Health District October 13, 1977 Re: Landfill Page 2 " Program Landfill Table IV-G on Page IV-24,, indicates a 965,000 cubic yards remaining. Our onsite calculations* indicate between 800,000 and 850, 000 cubic yards is actually remaining. Present fill rate of that site is. about 200,000 cubic yards of uncom-_ pacted waste a year. At a. 2s-1 compaction ratio;, that would leave eight years, of capacity, left the *the Corral Hollow site. At ;a 3: 1 compaction ratio, it would leave about twelve years of capacity. It is our projection, therefore, ,that >the City has between eight to twelve years left .at that site, given the anticipated growth indicated in the community and •the planning area, and, acompaction ratio between 2®1 and 3:1. 4. Locationofsite: The landfill site is reached via Corral Hollow Road: On-site traffic is restricted to a single roadway between the entrance gate and the fill face. Average daily traffic volumes are as follows: 1) 25 trucks (two axle or larger) ; 2) 65 passenger vehicles and pickups. 5 '& 6. Area Plot Plans See USCS map attached. No set back areas required. _7. Site Development and Implementation Plan. See attached map. 8. Topographical map of site. See attached map. 9. Geological information a) Test borings Test borings have never been performed on this site b') USCS 'soils and geology - abandoned gravel, pit. c) Ground water data — Not available on site. Previous landfill site north of 1-580 had 300 foot depth well with no appreciable water. 10. Drainage control Filled areas graded to permit sheet flow from Corral Hollow Road to Corral Hollow Creek. Virtually no run-off occurs due to limited rainfall in area during -wettest years. , No future plans for providing drainage controls, as available information and observations do not indicate they will be necessary. ; 11. Leachate.` Percolation virtually non-existent due to limited rainfall. No existing leachate, '. None anticipated.