RMC WATER AND ENVIRONMENT, INC. - 2014

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Project Objective: City desires to update the 2003 Sewer Master Plan to reflect subsequent growthlohanges in City's General Plan; reflect subsequent sewer improvements., and include the most recent CCTV inspections and Entranced Maintenance' Locations. The Update shall analyze the age of the sewer infrastructure; and the capacity of the City's Sewer Collection System for existing and future peak flow conditions under both dry and wet weather conditions. In addition, the Update shall include the summary of the rankings of the condition of the sewer pipes /manholes and the recommended rehabilitation and replacement of these sewers based on the most recent CCTV inspection reports. A Capital Improvement Program shall be developed to address identified hydraulic capacity deficiencies and structural deficiencies that are a risk of collapse or prone to more frequent blockages due to pipe defects. The "hydraulic model delivered shall be turn -key and shall be delivered within a GIS- complaint format that the City can access, maintain and continue to operate in -house in the future. The primary focus of the update is to evaluate the collections system overall conditions and to provide new tools and methods empowering the City staff to perform duties more effectively, and efficiently, The Sewer Master Plan Update will not need to include the analysis of the existing lift stations. Background: The City last performed a Sewer Master Plan in 2003. The two main objectives of the 2003 Sewer System Master Plan, prepared by MW Fl, were to: assess the hydraulic capacity of major sewers and lilt stations with a dynamic computer model; and proactively identify required improvements to ensure adequate capacity for current and projected future wastewater flows; and perform a study to determine the extent of infiltration /inflow (I /I) of groundwater and storm water into the City's sewers, and recommend appropriate actions to address any identified 1/1 problems. The City does not have a copy of the final model software or the corresponding data input/output files. The City only has hard copies of the Final Sewer Master Plan. The City has experienced some growth /changes to the City's General Plan since the last sewer master plan in 2003. Some of these changes include the Harbor Specific Plan, the Transit Zone Plan and several District Specific Zone modifications. Several of the Priority I Projects; included in The 2003 Sewer Master Plan have been constructed. In addition, the City has implemented a sewer lining program by which more than 55,000 feet of main sewer lines have been lined. Since 2003, the City has also prepared the Sewer System Management Plan (SSMP) dated 2009' and the 2013 Sewer System Management Plan Internal Audit. In addition, the City in 2004 adopted =a comprehensive Pats, Oils, and Grease (FOG) control program. Along with these addition plans and programs, the City has been performing a system -wide video inspection every eight years, which was last completed in 2010. The City has also updated the enhanced maintenance locations (EMLs) as part of its implementation of the 2009 SSMP, The existing 2003 Seiner Master Plan needs to be updated to address these changes and additional information; Data Available from the City. The City does not have a copy of the final sewer hydraulic model or the corresponding data riles. It only has hard copies of the Final Sewer Master Plan report. The City has developed a comprehensive sewer map in GIS format that shows all gravity line segments, manholes, and lift stations which complies with a geometric network. The Sewer