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<br />of the Keyser Creek Drainage upstream of East Canyon Creek is approximately 3.4 square miles. <br />The period of record for this gage was 1969 to 1983, the period of record used by staff in their <br />analysis was 1969 to 1983, or 14 years of record. Table 2 below displays the flow of Keyser <br />Creek upstream of East Canyon Creek (Table 2), in terms of a percentage of exceedence. <br /> <br />Table 2: Keyser Creek estimated flow upstr~am of East Canyon Creek. <br />Exceedences J,mua Februa Marcl\ ,II M. June J,' ...", Se tember October November O'....mber <br />1% 1.58 1.71 '" 13.28 51.74 89.17 61.11 7.73 3.15 4.2.8 '" 1.96 <br />5% '.53 '.58 '" 5.19 39.83 80.64 29.45 4.50 2.59 3.15 W '.80 <br />'0% 1.44 1.49 1.62 4.95 33.32 54.26 17.68 3.15 2.12 2.48 2.18 1.71 <br />20% 1.33 1.26 1.46 3.38 25.44 38.73 10.81 2.48 1.91 1.98 1.85 1.40 <br />,,% 0.99 ..'" 1.10 1.78 1126 24.32 4.05 1.98 '.44 1.35 1.33 1.13 <br />80% 0.81 0.81 090 1.22 4.95 11.71 2.25 1.49 1.13 1.06 080 0.92 <br />90% 0.72 0.79 0.81 1.01 3.83 5.40 1.76 1.19 0.72 0,92 ". ". <br />95% 0.72 0.77 0.79 0.79 2.76 3.49 1.19 0.82 0,63 0.72 0.74 0.68 <br />gEl% 0.68 0.72 0.74 0.65 .56 '.82 0.81 0.67 0,45 0.54 0.65 0.68 <br /> <br />Keyser Creek Estimated Stream Flow <br />u/s of East Canyon Creek <br /> <br />4 <br />3.5 <br />3 <br />2.5 <br />J!! 2 <br />" <br />1.5 <br />1 <br />0.5 <br />o <br /> <br />------- <br /> <br /> <br />----- <br /> <br />JAN <br /> <br />FEB <br /> <br />M^" <br /> <br />APR <br /> <br />MAY <br /> <br />JUN <br /> <br />JUL <br /> <br />AUG <br /> <br />SEI' <br /> <br />OCT <br /> <br />NOlI <br /> <br />DEC <br /> <br />Month <br /> <br />Table 2 above shows that the summer recommendation of 2.4 cfs is available for the months of <br />May through July. The summer and winter flow recommendations were further reduced to 1.3 <br />cfs and 1.0 cfs for the time periods of Augus1st through October 31st and November 1st through <br />April 30th based on limited water availability. <br /> <br />Precipitation Data <br />Staff reviewed local precipitation data sets from 2 different sites located around the Keyser <br />Creek Drainage (see Precipitation Data in Appendix C). These sites include Rifle and Glenwood <br />Springs. Table 3 shows the water year and the percent of average precipitation recorded at each <br />site. <br /> <br />- 4- <br />