ARCHIVED REPORTS_DRAFT ENVIRONMENTAL IMPACT REPORT

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IMPACT Public Services and Utilities—Increased Generation of Solid Waste. The proposed project would not 4.10-2 substantially increase the amount of solid waste generated at the WQCF related to the total capacity of the Forward Landfill. Waste generated by the WQCF from implementation of the proposed project would be less than 0.1%of the Forward Landfill's permitted capacity. In addition, staff at the Forward Landfill have indicated that the landfill has sufficient capacity to accommodate increased solid waste demands from the WQCF at project buildout. Therefore, the project's solid waste impact would be less than significant. Approximately 10 additional staff would be needed to operate the WQCF at plant buildout in 2020, and five additional staff would be needed at partial plant buildout in 2010. The CIWMB provides an average per-capita solid-waste disposal rate for business types including utilities like wastewater treatment plants(CIWMB 2004). Solid-waste disposal rates for utilities are estimated at 0.3 ton per employee per year. Using the waste disposal rate of 0.3 ton per employee per year for 10 employees, 3 tons of waste(or approximately 83 cubic yards)would be generated annually by these employees in 2020. One and one-half tons of waste would be generated annually by five additional employees in 2010. Waste screenings,grit, and biosolids are generated by the WQCF and trucked to the Forward Landfill for disposal. Annually,the WQCF currently generates 104 cubic yards of waste screenings, 52 cubic yards of grit, and 638 tons(approximately 548 cubic yards)of biosolids (Shannon,pers. comm.,2006). Estimated screenings, grit, and biosolids generation rates are assumed to increase proportionally to the increase in plant capacity from 9.87 mgd ADWF to 27 mgd ADWF (approximately 174%). Therefore,the proposed project would increase annual screenings, grit, and biosolids generation rates to 285 cubic yards of waste screenings, 142 cubic yards of grit, and approximately 1,502 cubic yards of biosolids. Solid waste generation rates of 2,012 cubic yards per year would not be reached until full plant buildout in 2020. Much lower generation rates would occur at project initiation in 2008,with gradual increases in the rate until full buildout. The Forward Landfill has approximately 29.38 million cubic yards of available capacity,which is estimated to last through 2017 (Kennedy,pers. comm.,2006). Staff at the landfill indicted that plans for future expansion of the landfill are not yet under way and would not occur until remaining capacity is less than 7 years. Assuming an annual solid waste disposal rate of 2,012 cubic yards,the proposed project would increase the amount of solid waste generated by a total of approximately 20,120 cubic yards through 2017. As such,waste generated by the WQCF from implementation of the proposed project through 2017 would be less than 0.1%of the Forward Landfill's permitted capacity. Additionally,the proposed project would comply with all federal, state, and local statutes and regulations related to solid waste reduction and recycling and the project would be consistent with City general plan policies related to source reduction and recycling(Policy PF-P-31). Because the waste generated by the WQCF from implementation of the proposed project would be less than 0.1 % of the Forward Landfill's permitted capacity, and the proposed project would not violate federal, state, or local statutes and regulations related to solid waste,the project would result in less-than-significant solid waste impacts. IMPACT Public Services and Utilities—Increased Demand for Electricity and Natural Gas. Implementation of 4.10-3 the proposed project would increase demand for energy in the city. However, the energy demands created by the project would not be substantial in relation to the total energy currently supplied by PG&E in its northern and central California service area or total energy demands expected in the future, and proposed energy improvements would be required to comply with existing City, PG&E, and applicable Uniform Building Code requirements. Therefore, this impact would be less than significant. Average electricity demand at the WQCF is 17,386 kWh per day(or 724 kW per day), and average natural gas demand is 27.1 therms per day(Shannon,pers. comm.,2006). Estimated future demands for electricity and natural gas are assumed to increase proportionally to the increase in plant capacity from 9.87 mgd ADWF to Manteca WQCF and Collection System Master Plans EIR EDAW City of Manteca 4.10-7 Public Services and Utilities