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<br />Table 2: <br /> <br />. <br /> <br />Exceedences <br />1% <br />5% <br />10% <br />20% <br />50% <br />80% <br />90% <br />95% <br />99% <br /> <br />Januarv FeblU3rv March Aoril Mav June Julv AuQust September October Novem r m r <br />2.65 4.26 7.44 79.96 67.88 40.92 8.17 5.69 1.65 3.05 2.61 3.00 <br />2.54 2.95 4.35 60.59 38.67 26.85 5.51 2.76 1.27 2.54 2.32 2.25 <br />2.54 2.54 3.63 46.08 31.42 17.78 3.70 1.38 0.83 1.97 2.18 1.89 <br />1.96 1.92 3.44 21.41 23.36 8.71 1.71 0.80 0.62 1.23 1.96 1.63 <br />1.45 1.81 2.36 6.17 9.43 2.61 0.54 0.54 0.47 0.62 1.02 1.20 <br />0.93 1.16 1.45 3.99 2.79 0.87 0.25 0.22 0.29 0.47 0.44 0.25 <br />0.29 0.94 1.23 2.50 1.53 0.47 0.18 0.15 0.18 0.36 0.25 0.04 <br />0.29 0.87 0.83 1.74 1.23 0.22 0.15 0.11 0.18 0.33 0.15 0.00 <br />0.29 0.83 0.65 1.09 0_80 0.18 0.11 0.07 0.11 0.29 0.05 0.00 <br /> <br />be Dece be <br /> <br />North Fork Mesa Creek Estimated Stream Flow <br /> <br />. <br /> <br /> 10 <br /> 8 <br />cf 6 <br />!': <br /> 4 <br /> 2 <br /> 0 .. - - ..- <br /> JA FE M A M JU JU A S <br /> N B A P A N L U E <br /> Month <br /> <br /> <br />o <br />c <br /> <br />N <br />o <br /> <br />D <br />E <br /> <br />Table 2 shows that the summer recommendation of2.75 cfs is available at least 50% of the time <br />from April 1st through May 31 st. Table 2 also shows that the winter flow recommendation of <br />1.90 cfs is only available at least 50% of the time March 1st through March 31 st. The winter <br />recommendation was further reduced to 0.5 cfs for the time period of June 1st through February <br />29th based on limited water availability. <br /> <br />BLM staff also conducted numerous on-site flow measurements as part of its water quality <br />monitoring efforts. These measurements were taken approximately one mile upstream from the <br />confluence of the South Fork and North Fork, approximately one mile downstream of the <br />proposed instream flow reach. During the 1979 to 1984 period, BLM took 9 flow measurements <br />during the spring and 12 flow measurements during late summer. The median of the spring <br />measurements was 27.3 cfs, while the median for the mid-summer measurements was 1.0 cfs. <br /> <br />Precipitation Data <br />Staff reviewed local precipitation data sets from 4 different sites located around the Mesa Creek <br />Drainage (see Precipitation Data in Appendix C). These sites include Paradox 2 SE (1941- <br />1977), Gatway 4 NE (1947-1999), Delta (1893-1999) and Montrose #2 (1885-1999). Table 4 <br />shows the water year and the percent of average precipitation recorded at each site. <br /> <br />. <br />