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Currently, the Solid Waste Management Board is funding refuse -to - <br />energy feasibility studies for: <br />• San Diego County - 1,000 TPD1/ refuse incineration to steam <br />• City of Alameda - 1,000 TPD water wall incineration to generate <br />electricity for city -owned utility. <br />• Contra Costa County Sanitation District (CCCSD) - combined RDF <br />and sludge incineration <br />• San Francisco - 1,400 TPD water wall incineration with on-site <br />production of electricity <br />• Humboldt County - 2,000 TPD RDF plant with RDF combined with wood <br />waste for combustion and electrical production. <br />Typically, the feasibility, design, and construction phases of a refuse-, <br />to -energy plant requires six to eight years. In order to determine the applic- <br />ability of energy recovery, a disposal alternative of a thorough feasibility <br />study would have to be conducted specific to the proposed service area of <br />San Joaquin County. The commonly identified critical elements for success <br />of a refuse -to -energy project are as follows: <br />• Reliable source of refuse to meet the minimum capacity requirements <br />of the facility. <br />• Long-term contracts for the sale of energy and recovered materials. <br />• A suitable site for the plant. <br />• Means of financing the project. <br />• Approved permits from the Air Quality Management District and other <br />regulatory agencies. <br />It should be noted that the ash residue from incineration processes is <br />classified as a Group I or hazardous waste by the California Regional Water <br />Quality Control Board and thereby requires disposal in a Class I landfill. <br />Air emission concerns continue to frustrate the future of resource <br />recovery facilities in California and must be evaluated on a case-by-case <br />basis. <br />l/ TPD = tons per day <br />