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<br />. <br /> <br />c. A pumped sampler will be installed at each station which includes the ability to <br />obtain stream samples at the location of the turbidity probe at designated times. The <br />sampling events may be triggered either by pre-established rules, or by remote <br />communication. Each sampler will be capable of obtaining and storing up to 24 samples. <br />d. Measurement data will be remotely available by means of satellite telemetry. <br />e. At the downstream station (and, if necessary, at the upstream station), a flow <br />rating curve will be developed using standard flow measurement techniques. If <br />appropriate, the station at the upper end of the reservoir basin will be located near the <br />existing stream gauging station. Stream flows downstream from the reservoir will also <br />be determined based on inflow and storage variations. Time-variable relationships will <br />be determined between reservoir stage and reservoir storage capacity based on historic <br />sedimentation rates. <br />f. Turbidity/Sediment Concentration and Stage/Sediment Concentration <br />relationships will be determined based on periodic field suspended sediment samples take <br />at each station. It is anticipated that samples will be taken during normal flow periods <br />each season as well as important flow events such as rising and falling limbs of storms <br />and various spring runoff flows. The estimated cost for the proposed work is based on a <br />maximum of 15 sampling events. <br />g. The turbidity monitoring and suspended sediment monitoring will need to be <br />supplemented with bed load sampling. However, previous studies have indicated that <br />bed load is a small percentage of total load and, therefore, it is anticipated that the <br />number of bed load samples will be approximately 25 percent of the suspended sediment <br />samples. <br />h. Samples will be obtained of the bed material at selected locations. <br />I. Appropriate laboratory tests will be performed on all collected samples. <br />j. The costs presented in this application are based on a sampling, monitoring and <br />calibration program which continues for a period of two years. <br /> <br />. <br /> <br />3. Cost/Benefit Analysis - A cost/benefit analysis will be performed for each of the selected <br />mitigation methods evaluated. Costs will include construction costs, life-cycle costs and any <br />other indirect costs. Benefits will include both direct benefits from storage recovery as well as <br />any identifiable indirect benefits. <br /> <br />4. Runoff Prediction Tools - The ability to reliably anticipate storable runoff volume will <br />increase the range of sediment management options. For example, if flushing is found to be a <br />feasible option, the ability to maximize the average available reservoir head and/or reservoir <br />release flows while still assuring full storage will increase the effectiveness of the flushing <br />processes. Therefore, part of the Phase Two portion of the study will be to evaluate the potential <br />for developing accurate runoff prediction models based on a combination of SNOTEL data, <br />basin characteristics and climate forecasts. This work will consist of the following: <br /> <br />a. Research the availability of existing runoff prediction models and their applicability. <br />b. Make a preliminary correlation between historic SNOTEL records and runoff volume. <br /> <br />. <br /> <br />5. Investigate Funding Options - Research will be done to assure that all feasible sources of <br />funding have been identified. These may include but not be limited to water users, the Colorado <br />River Water Conservation District, State agencies and Federal Agencies. <br /> <br />6. Investigate Partnering Possibilities - There may be other entities which have an interest <br /> <br />5 <br />