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6.B. - Page 24 of 28 Appendix 5: Utilities Evaluation Page 18 Project demands included, to determine the hydraulic impact of the Project on the City's recycled water system. Utilize hydraulic evaluation criteria provided by the City for the recycled water system operation. • Develop Revised Layout Plan for Downtown Area: Coordinate with the City to develop a revised layout plan for the recycled water pipelines within the City's Zone 2C of the recycled water system, south of Marshall Street. Locations for customers will be provided by the City. One layout plan will be incorporated into the hydraulic model. The hydraulic evaluation criteria provided by the City for the recycled water system operation will be used to size the revised layout plan. Existing utilities will be considered when selecting alignments, but a full alignment study is not included. Task 2. Citv Data Requirements: • Recycled water demands for the Project area for existing and buildout conditions • Most recent version of the recycled water model • List of recycled water customers to be considered with associated demands to use Task 3. Evaluate Sewer Collection System Consultant will perform a sewer collection system analysis to determine sewer collection system infrastructure requirements to serve the Project. The following work will be performed: • Update the Hydraulic Model: Update the City's existing sewer collection system hydraulic model to include proposed sewer mains identified in the Preliminary Utility Study and allocate dry - weather and wet -weather flows provided by the City for the Project. The design storm used for the wet -weather flows will be identified. Hydraulic model files will be provided in Info works ICM and EPASWMM format. Up to four flow split manholes within the project area will be identified and field verified. • Perform Hydraulic Evaluation of Available and Needed Capacity: Perform a hydraulic analysis for the sewer collection system to calculate available and needed dry -weather and wet -weather capacity for new facilities to serve the Project and for existing facilities downstream of the development area. Perform the analysis for existing conditions and for buildout conditions with the demands for the Project included to determine the hydraulic impact of the Project on the City's sewer collection system. Identify impacts to the Maple Sanitary Sewer Pump Station and coordinate with Silicon Valley Clean Water's recent analysis of this pump station. Utilize hydraulic evaluation criteria in the City's Sewer Collection. System Master Plan for the collection system performance criteria. Perform Condition Assessment: Perform up to three CCTV inspections of gravity sewers within the project area. These have been identified as along Elm Street between Lathrop Street and Main Street, along the railroad right-of-way between Elm Street and Cedar Street and along Maple Street between El Camino Real and Middlefield Road. Review the video and log files for the three CCTV inspections performed within this task. Review log files provided by the City for the immediate project area. Spot check the CCTV videos files to confirm the PACP grade 5 defects identified in the log files (assume there are no more than five of these). Identify any defects that will be made worse if not migrated by the project. The PACP grade 3, 4 and 5 defects will be identified and ATTY/AGR/2019/AMEN DM ENTS/AM END N 0.1- AECO M REV: 06-17-19 PR Page 18 of 22 45