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<br />" <br /> <br />2(\7;2 <br /> <br />b:arkstat.rpt <br /> <br />Changes in vegetation, <br /> <br />Changes in channel geometry (natural or man-induced), <br /> <br />Change in water use (surface water-groundwater ratio, diversions), <br /> <br />Diversion structures (e.g, effects of low head dams, etc.), and <br /> <br />Climatic variability. <br /> <br />Current Possible Approaches For Work Suggested By Study <br />Participants Including Residents and Landowners <br /> <br />Document historic channel changes to determine variability and <br />rates of change. This information could be useful to make <br />estimates of operation and maintenance costs. <br /> <br />Study the reach from Pueblo to John Martin Reservoir (or Kansas <br />Line) to improve understanding of processes affecting sediment <br />transport, channel problems, high water tables, water delivery, etc. <br />The flow budget needed for such a study is largely in place. A <br />sediment budget would need to be developed. The scale and <br />complexity of such a study would be determined based on needs <br />and funding. <br /> <br />Study the surface water-groundwater interaction in the study reach <br />to more clearly understand the relation between sediment transport <br />and the high water table. <br /> <br />Study possibilities for channel maintenance through flow <br />modification similar to other studies being done by the USGS, <br />USACE or other agencies in other basins. <br /> <br />Improve channel conveyance through various means at identified <br />key locations. <br /> <br />De-water selected high groundwater areas and seek credit from <br />Kansas for additional water contribution. <br /> <br />Remove salt cedar in selected reaches to improve conveyance and <br />reduce other negative effects. <br />