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City of Redwood City - Sewer System Modeling, Capacity Assessment, and Master Planning Draft Scope of Work from sewer system testing and inspections that have been conducted by the City to identify specific problem areas and types of problems. Subtask 8.2 - Develop Rehabilitation Plan Based on the assessment of rehabilitation needs and RMC's experience with similar systems, RMC will develop a rehabilitation plan that identifies recommended 1/1 reduction and sewer rehabilitation activities. Task 9 - Develop Sewer System Capital Improvement Proaram Subtask 9. 1 - Develop Cost Criteria RMC will develop criteria for estimating probable construction and capital costs based on RMC's database of sewer construction costs from projects throughout the Bay Area, as well as input from City staff on costs of local construction projections. Unit construction costs will be developed to the detail normally used in master planning. Cost allowances (percentages of estimated construction cost) for construction contingencies and for design engineering, construction administration and inspection, and legal costs will also be included. Subtask 9.2 - Prepare Cost Estimates Based on the capacity relief projects developed in Task 7, RMC will prepare cost estimates based on project-specific site conditions as known at the planning stage. The estimates will be based on the most viable construction method for each specific project. It is understood that these cost estimates will be considered conceptual planning level estimates with an expected accuracy of approximately minus 30 to plus 50 percent. This level of estimate is considered appropriate for system master planning and represents an "order of magnitude" cost estimate as defined by the Association of Cost Estimating Engineers. Subtask 9.3 - Develop Project Priorities In conjunction with City staff, RMC will prioritize the recommended improvements projects. Prioritization criteria will include the severity of existing capacity deficiencies (as indicated by the extent of surcharge or potential overflows predicted by the model), the relative impact of the predicted surcharge or potential overflows, the timing of proposed development or redevelopment, maintenance history and/or sewer condition information provided by City staff, and coordination with other projects such as sewer rehabilitation, other utility construction, pavement overlays, or other street improvements. Subtask 9.4 - Develop Phased CIP After working with City staff to develop project priorities, RMC will develop a phased capital improvement program (CIP) for the recommended sewer improvements in the form of short (5- year) and long-term (20-year) CIPs. Oeliverables: . Project cost estimates . 5- and 20-year CIPs, including maps and descriptions of recommended projects Task 10 - Prepare Master Plan Report Subtask 10. 1 - Prepare Draft Report RMC will incorporate the findings and recommendations of the project into a Sewer System Master Plan report. The report will document study assumptions and methodology, recommended design and performance criteria, model results, approach for capacity enhancement and 1/1 control, and the recommended CIP. The appendices to the report will 6