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EXHIBIT "A" SCOPE OF WORK: TASK 1: REVIEW DATA AND REPORTS Moffatt & Nichol shall review existing data and engineering reports that have been generated from the study of flooding in the Bayfront area and potential mitigations. The data/reports are as follow: . Topographic LIDAR survey and as-built drawings of the Flood Slough tide gate; . Winzler and Kelly Hydraulic study (2003); . WRECO Hydraulic study (2011). TASK2: FEASIBILITYANALYSIS Moffatt & Nichol shall: 1. Develop stage versus storage relationships for the three managed ponds (S5, R5, & R3) from the available LIDAR data. 2. Perform hydraulic analysis to determine the hydraulic grade lines from the Bayfront Canal, through the managed ponds, and then out to Flood Slough. Potential locations for tide-gates and culverts to route flows back into Flood Slough will be considered. Grading of the managed ponds to facilitate the project will also be considered. 3. Pertorm statistical analysis to determine the frequency of occurrence for various combinations of rainfall and high tide events, which will be used to estimate stage and capacity of the ponds and resulting reduction in flood stage in Bayfront Canal. Flood flows and stages associated with lower frequency precipitation events will be derived from the existing hydraulic and hydrologic studies. The recurrence-interval of tide levels in Flood Slough will be derived from existing studies and from available tide data in the Bay. 4. Conduct water quality sampiing to document background levels of contaminants in Bayfront Canal. 5. Document approach and results. TASK 2 DELIVERABLES: . Preliminary Feasibility Analysis Report . Water Quality Sampling Results SCHEDULE: Preliminary Feasibility Analysis Report shall be provided within 4 weeks of Notice to Proceed. Water quality sampling is weather dependent, a nd shall be provided as soon as practical. ATTY/AGR/2012.016/MOPFATT NICHOL Page 10 of 11 REV: VR 02/O6/12