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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />relationships and compare them to the COE results. It was therefore <br />recommended that the peak discharges contained in Reference 6 be used on <br />the flood insurance study of Willow Creek (reference COM's letter to FEMA <br />and CWCB, dated June 4, 1980, in Appendix B). The peak discharges have <br />been summarized in Table 1. <br /> <br /> <br />A review of the COE hydrologic analysis of the Arkansas River at Lamar <br />contained in Reference 6 was also carried out during the flood insurance <br />study process. The COE utilized the methodology as outlined in <br />Reference 15, whereby stream gage data from the USGS gage station on the <br />Arkansas River at Lamar was analyzed to produce a frequency-discharge <br />relation for this reach of the Arkansas River. The methods and results <br />were reviewed by COM and compared to a similar gage station analysis with <br />four additional years of gage data. It was found that no large change in <br />flow rates result from supplementing the COE data, and that COM's results <br />fall within the 90 percent confidence limits, as shown in Figure 7. It was <br />therefore recommended that the peak discharges contained in Reference 6 be <br />utilized in the flood insurance study for the City of Lamar, Colorado <br />(refer to COM's letter to FEMA and CWCB dated June 4, 1980, in Appendix A). <br />These flow rates have also been summarized in Table 1. <br /> <br />City of Monte Vista, Colorado <br /> <br />The stream studied in the flood insurance study for Monte Vista, Colorado <br />was the Rio Grande River. An Army Corp of Engineers "Floodplain <br />Information Report, Rio Grande River, Monte Vista, Colorado," 1969 <br />(Reference 3), was reviewed by COM for the applicability of the hydrologic <br /> <br />13 <br />