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The following types of take are possible as a result of Program implementation: <br />1. The Program's proposed restoration or protection of 10,000 acres of habitat for the <br />species will substantially mitigate impacts of the Program and of new and existing <br />water related activities covered by the Program on tern and plover breeding <br />habitat on the central Platte River. Available data show that terns and plovers <br />have not successfully used the Platte River for the past 15 years. Depending on <br />the outcome of investigations of the need for and potential benefits of island <br />clearing and leveling and other sediment augmentation measures identified in the <br />Program, existing water-related activities may continue to interfere with some <br />hydrologic and sediment processes to some extent, potentially adversely affecting <br />terns or plovers using habitat created under the Program. If the island clearing <br />and leveling to be investigated under the Program are successful, or if other <br />Program measures are carried out to maintain Program breeding habitat areas, <br />they may further reduce any potential take of this type that might occur. <br />Quantifying and tracking the amount of potential take in the form of harm from <br />habitat modification in the 90-mile stretch of habitat from Lexington to Chapman <br />is difficult. Two of the important variables believed to affect formation of sandbar <br />nesting habitat for least terns and piping plovers in the central Platte River are <br />high flows and sediment availability. The Program is designed to evaluate these <br />two factors over the 13 years of the Program's first increment. If initial testing of <br />sediment augmentation and flows prove effective and feasible, and, if they do not, <br />also provides for the restoration and maintenance of sandbar habitat by <br />mechanical means. Therefore, a surrogate measure of harm is performance of <br />Program Milestones including performance of the Program's IMRP (Milestone 6). <br />Reinitiation of consultation related to sandbar nesting habitat issues will be <br />required if the conclusions of the Program's Section IV.E process are that <br />Milestones have not been performed and neither the Governance Committee nor <br />Oversight Committee can restore the ability of the Program to provide ESA <br />compliance. <br />2. Although no least tern or piping plovers have been observed nesting on the Central <br />Platte in the last 20 years, if the Program is successful in creating, restoring and/or <br />protecting riverine nesting habitat and riverine nesting occurs, eggs and unfledged <br />chicks might be killed by high flows. EA releases, other Program water <br />management activities, and actions of water related activities covered by the <br />Program, either alone or in combination with rainfall events during the summer, <br />can result in flooding of nests and mortality of eggs and chicks. This risk is <br />reduced by measures implemented by Central under its FERC license and <br />incidental take permit to attenuate the magnitude of rainfall-related "spike flows." <br />Due to the absence of nesting activity currently occurring on the central Platte <br />River, there is currently no inundation-related take occurring. We realize that the <br />Platte River system is highly variable and it is difficult to predict incidental take