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<br />WATER A V AlLABILITY <br /> <br />e <br /> <br />NOlth <br /> <br />Bou I del <br /> <br />Cleek <br /> <br />511ver Lake Gage to Lakewood Inlat <br /> <br />. <br /> <br /> <br />D:t <br /> <br />- <br /> <br />""" <br /> <br />olan <br /> <br />FIIb ..... Afr .... <br />Month <br /> <br />_ CWCS 15F AMlUNT <br /> <br />.w. <br /> <br />.wI <br /> <br />.... <br /> <br />.... <br /> <br />2' <br /> <br />20 <br /> <br />'Q;' 15 <br />..... <br />" <br />\J <br />;0 <br />o <br />u. <br /> <br />10 <br /> <br />o <br /> <br />e <br /> <br />The North Boulder Creek hydrograph was derived utilizing data from the Silver Lake gage and <br />correlation with the Middle Boulder Creek gage at Nederland. The gage flows were also adjusted to <br />account for 0,5 cfs of donated rights from the City of Boulder, and historic tributary gains between the <br />Silver Lake pipeline diversion and the Lakewood Inlet. <br /> <br />SUMMARY <br /> <br />* <br /> <br />The DOW has documented that a natural environment is present in the form of a Brook <br />and Rainbow Trout fishery. <br /> <br />* <br /> <br />The DOW has recommended that a flow of 4 cfs in the summer together with a flow of <br />1.5 cfs in the winter are necessary to preserve the natural environment to a reasonable <br />degree. <br /> <br />* <br /> <br />The CWCB staff has conducted a water availability analysis and determined these <br />amounts are available for the Board's appropriation. <br /> <br />* <br /> <br />The CWCB staff has determined that adequate water supplies exist such that the natural <br />environment may be preserved without limiting or foreclosing the exercise of valid <br />existing water rights, <br /> <br />e <br /> <br />File: NBCSREC.DOC <br />