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2 Modelling Software and Base Data <br /> 2.1 Basic XPSWMM Configuration <br /> An interconnected lake system, drained by pumping, is most realistically analyzed using an integrated <br /> hydraulic modelling tool such as XPSWMM. The XPSWMM model captures the behavior of dynamic <br /> systems of storage (lakes) and conveyance (pipes) with nonlinear hydraulic elements such as pump <br /> arrays. The models were created using dimensional data extracted from the construction plans to <br /> represent the actual system geometry, capacity, and pump parameters. <br /> An example plan view of the model with the equalizer pipes is depicted in Figure 2-1. The model includes <br /> Phase 2 lakes as well as Phase 1 lakes. The inverts of each of the equalizer pipes are well below the <br /> normal operating lake water surface elevations so that the inlets and outlets remained submerged, see <br /> Figure 2-2 for an typical example from Phase 1. Phase 2 is assumed to have lake interconnection pipes <br /> also well below the normal water surface elevation, though the exact elevation is yet to be determined as <br /> these structures are not yet designed for phase 2 lakes. <br /> St` <br /> 2 f § <br /> IiL_ i �r Lake-13 <br /> 2-7 <br /> 58 1 1-Lr-12-13 <br /> -- =•moi J 1=� ,,. �� � ``� � .. `��;;L2kp2r-12 <br /> �F;%r;:`l�`gc:mak' n�'••.ti.,.�.c:i'<.- ��=ie.�a,_ .: i <br /> Lc`ao.1z <br /> r X 1` <br /> �• 3x�`— ^3ake-2d i"kFinyQ Lake-9 <br /> f <br /> � �ti��}.I.Criik•���411�.�.$ 1•Lq-5.6 <br /> , ��f'�`� Lake•? � LSk6•E <br /> ` } } 1-Ld-3.7 <br /> Lake-'-2 <br /> \ 1-L jTS_4A n1e[ <br /> • //I�7 <br /> � A C.7u flat <br /> 1f <br /> Figure 2-1: Example plan View of XPSWMM Model for phase 2 <br /> River Islands Phase 2 Stormwater Mitigation Rev 2 7 <br /> PACE <br />