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B2. Temporary Flow Meter Installation, Calibration, Data Collection Install and calibrate seventeen (17) temporary velocity /depth type flow meters and two (2) rainfall gauges at the agreed upon locations. Temporary flow meters shall remain in place for a minimum of sixty (60) days. B3. Flow Data Analysis and Evaluation Reduce raw field monitoring data and tabulate 15- minute flow data for the entire flow monitoring period. Prepare flow hydrographs and scattergraphs for the flow monitoring period. Flow data will be analyzed for average dry weather flow, peak dry weather flow, and wet weather peak flow rates. Flow data will be compared with rainfall data to determine amount of inflow /infiltration experienced during selected storm events. B4. Flow Monitoring Results Technical Memorandum (TM -1) Prepare Technical Memorandum (TM -1) showing flow monitoring results and submit five (5) copies to the City. TM -1 will include flow monitoring results and analysis, development of dry and wet weather flow parameters by sewer basin and meter sites as well as level of infiltration /inflow throughout City. TASK C: MODEL DEVELOPMENT Conduct Gap Analysis to Review Network Connectivity and Identify Data Needs FNI will review data for network connectivity, flow direction, unique ID discrepancies, and missing attribute information. Interviews with operations and GIS staff will be conducted as well. FNI will utilize modeling software to electronically verify and correct flow directions to help select flow monitoring locations and model development. Develop Protocol to Populate Missing Data for Model Development FNI will develop forms to collect data and assist City staff to obtain missing attribute data and connectivity conflicts. A protocol will be identified to incorporate new data into GIS features, such as available information on material, age, size, and missing invert data on all sewer lines 8" and larger with additional key 6" lines. FNI will spend time in the field with operational staff to evaluate areas of discrepancies. Information collected will be documented for importation into the City's GIS database. Import GIS Data into Model and Conduct Detailed Model Network Review Once the attribute data is established on nodes and links and lift station information entered into the model, a detailed analysis will be done on the model database to resolve anomalies of the data. This includes generating lists of pipes with negative slopes, reviewing pipe profiles on major interceptors. FNI will develop pipe profiles for each major sewer interceptor for manual review with pipes with negative slopes highlighted. WW Master Plan Engineer Services (Engineering Services)— February 2012 13