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3.3 List of Modelled Scenarios for Phase 2 Reference to the different models/scenarios are made using the nomenclature of the variables described in the previous sections, including both nomenclature from phase 1 and 2. When combining the different categories, a unique ID for referencing a specific model/scenario is created. This nomenclature is used when referring to the different model configurations henceforth. An example is presented below. Example: Alt 6-L-ca-V20-PS-D-48-d refers to the modelling scenario where there are the equivalent of 811 (5 actual pumps12) unit pumps active in watersheds A, B and C (Alt6), watershed A pump station is pumping into lake 25(L) and phase 2 lake hydrographs are based on approximated contributory drainage area (ca). Lake 12 is connected to the Phase 2 Pump station (PS). Phase 1 pipes are altered from their as built conditions per model D (D). The 48-hour 100-year storm event is analyzed (48) for the dynamic scenario where the pumps are turned on (d). The list below presents all the analyzed scenarios using the nomenclature described above. Phase 2 models: 1. Alt6-LAKE-V20-ca-PHAS E 2 PUMP STATION-D-48-d and s 2. Alt6-LAKE-V20-la- PHASE 2 PUMP STATION -D-48-d and s Notes: 1. As the list above shows, the "D" part (referring to some Phase 1 nomenclature) of the model configuration names are identical for all phase 2 model configurations. This may seem unnecessary to include at present but these index are kept for easier reference to important model information as well as to distinguish between these models and other models that may be created in the future. 2. As per Note 1 above, most of the Phase 2 model configuration nomenclature (Alt6-LAKE-V20" as well as "PHASE 2 PUMP STATION) is the same for both model configurations. This may also seem unnecessary to include at present but these index are kept for easier reference and to not confuse these Phase 2 models configurations with those from previous revisions of this report. 11 As described in Section 1.2,the actual Phase 2 Pump station will have 3 active pumps with twice the flow compared to the"unit pump",thus totaling a capacity of 2x3=6 unit pumps at the Phase 2 pump station.Phase 1 pump station(pump station A)will have 2 active unit pumps. 12 idem River Islands Phase 2 Stormwater Mitigation Rev 2 19 1� PACE