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distribution system are shown in Exhibit 3-3. All WQCF improvements,with the exception of the parallel 48-inch <br /> outfall pipe and side-bank outfall structure,would be located on-site,within the existing WQCF boundaries. The <br /> specific schedule for construction of facilities would be determined by actual flow and load increases,permit <br /> conditions, and operational needs (Table 3-3). Proposed master plan facilities are described in more detail below. <br /> Table 3-3 <br /> WQCF and Collection System Master Plans Update Projects' <br /> Description Phase IV Construction Phase V Construction <br /> Start Completion Start Completion <br /> Aerated Grit Tanks 10/2010 4/2012 4/2020 4/2022 <br /> Primary Sedimentation Basins 10/2010 4/2012 4/2020 4/2022 <br /> Aeration Basins 10/2010 4/2012 4/2020 4/2022 <br /> Secondary Clarifiers 10/2010 4/2012 4/2020 4/2022 <br /> Dissolved Air Flotation Units 10/2010 4/2012 4/2020 4/2022 <br /> Secondary Effluent Filters 10/2010 4/2012 4/2020 4/2022 <br /> Rapid Mixing and Flocculation Tanks 10/2010 4/2012 4/2020 4/2022 <br /> Ultraviolet Disinfection Channels and Effluent Pumps 10/2010 4/2012 4/2020 4/2022 <br /> Secondary Effluent Equalization Pond 10/2010 4/2012 - - <br /> Anaerobic Sludge Digesters,Heating,and Cogeneration Facilities 10/2010 4/2012 4/2020 4/2022 <br /> Sludge Dewatering Centrifuge - - 4/2020 4/2022 <br /> Outfall Pipeline(48-inch)and Side-Bank Structure 10/2010 4/2012 - - <br /> Chemical Handling Building 10/2010 4/2012 - - <br /> North Manteca Trunk Sewer 10/2010 4/2012 - - <br /> South Manteca Trunk Sewer 10/2010 4/2012 - - <br /> Central Manteca Trunk Sewer 10/2010 4/2012 - - <br /> Union Ranch Pump Station 10/2010 4/2012 - - <br /> Southwest Manteca Pump Station 10/2010 4/2012 - - <br /> Tara Park Pump Station(Interim) 10/2010 4/2012 - - <br /> Recycled Water Distribution System 10/2010 4/2012 <br /> Note: <br /> Estimated based on master plan and recent planning estimates. <br /> Source:Nolte Associates 2006 <br /> PROPOSED LIQUID STREAM TREATMENT FACILITIES <br /> Primary Treatment <br /> The proposed project would construct seven aerated grit tanks and 10 primary sedimentation basins at the SSF. <br /> The grit tanks would remove relatively high-density inorganic particles(e.g., sand) from the wastewater. Once <br /> separated from the wastewater, grit will settle into the hoppers in the bottom of the tanks. Grit collected in the <br /> hoppers will be discharged to a grit classifier by gravity for further concentration and washing of light organic <br /> material trapped with the grit. Concentrated and washed grit discharged from the classifier will be conveyed into a <br /> dumpster and periodically hauled to a landfill for disposal. Wash water from the classifier will be discharged into <br /> the plant drain system and returned to the influent pump station. <br /> The purpose of the primary sedimentation basins is to remove settleable solids and floatable scum. This is <br /> accomplished by providing a quiescent environment where particles with densities greater than water can settle <br /> Manteca WQCF and Collection System Master Plans EIR EDAW <br /> City of Manteca 3-19 Project Description <br />