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11 <br /> <br /> A further issue that needs to be resolved is the flood hydrology at HigKline Reservoir. To date there <br /> is insufficient hydrologic information to determine the flow through the reservoir due to storm events <br /> and related reservoir attenuation. In the case of both the hydrologic and the biological data, <br /> designing a facility to protect for the perceived range of conditions may be more costly than <br /> protecting for the known range of conditions. Determining the actual escapement and the hydrologic <br /> conditions experienced at each facility would enable the design of an exclusion facility that would <br /> work to exclude the problem species through the appropriate range of flows experienced by the <br /> facility. <br />1 <br />1 <br />1 <br />i <br /> <br /> <br />1 <br />i <br />Control Structure Feasibility Evaluation <br />Miller Ecological Consultants, Inc., February 18, 1997 <br />IV