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<br />4 <br /> <br />STREAMFLOW RECORDS A V AILABLE <br /> <br />The analyses in this report are based on records of streamflow that have <br />been collected in Kansas and adjoining areas. The sites are shown in figure <br />1. Two types of streamflow data have been used as follow s: (1) Sites identi- <br />fied by triangles on figure 1 are those whe re streamflow gaging stations have <br />been operated for 6 or more years prior to March 31, 1957. Monthly stream- <br />flow records at each of these sites have been used to develop the expectancy <br />of various rates of multiyear low flow and to develop the expectancy of vari- <br />ous rates of sustained outflow resulting from given storage capacities. (2) <br />Sites identified by Xl S on figure 1 are those where gaging stations have been <br />operated for less than 6 years or where periodic low-flow measurements have <br />been obtained since October 1953 by the Division of Water Resources, Kansas <br />State Board of Agriculture, as part of a cooperative investigation with the U. S. <br />Geological Survey, Approximate draft-storage relations have been estimated <br />at sites identified by XIS to extend the geographic coverage and to help define <br />geographic trends established at the sites having more adequate data. <br /> <br />The numbers or letters identifying streamflow sites in figure 1 are used <br />for reference in this report as well as in other reports of this technical series. <br />Letters are used instead of numbers if the sites are operated by offices of the <br />U. S. Geological Survey in adjoining States. The numbers and letters arrange <br />the data at streamflow sites in the same downstream order used in surface <br />water reports of the U. S. Geological Survey. For gaging stations operated 6 <br />or mo re years that are analyzed in thi s repo rt, table 1, subsequently presented, <br />includes information of the location, years of record used for analysis, and <br />drainage area. <br />