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9. The groundwater gradient adjacent to the Platte River at Elm Creek is relatively steep <br />toward the River from the south, and relatively moderate toward the River from the <br />north. Interpretation of the groundwater gradient next to Rowe Sanctuary and Crane <br />Meadows is confounded because the cross - valley transects are not oriented <br />perpendicular to the Platte River. <br />10. The relationship between river stage and river flow at Rowe Sanctuary and Crane <br />Meadows was good, but the Elm Creek relationship was poor because the river channel <br />for the Elm Creek gage was fed primarily by a groundwater drain. <br />11. Depth -to- groundwater duration curves are useful for determining maximum and <br />minimum levels, as well as the percent of time a particular level was equaled or <br />maintained above that level. If this duration information was combined with th( <br />it may be possible to predict plant response to future water <br />IV <br />