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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 />February 2000 <br /> <br />CRWCD * Y ~ RiLu Basin Small Reserwir Study * Pag? . 10 <br /> <br />the basin over various periods in the past, but have been discontinued. Most of these gages were <br />located on tributary streams, with contributing drainages ranging from less than ten to over 200 <br />square miles. Streamflow data from the tributary streams were used to calculate inflow hydrology for <br />potential sites. Data from a total of 35 existing and historic gage stations were used. The approach <br />utilized existing stream flow data to derive physical water yield estimates. Table 2, Basin Streams with <br />Streamjlaw Gag! Rocards, swnmarizes physical flow data from the 35 gage stations that were evaluated as <br />part of this study. Appendix A, Estimate of Annual Yield for Gag:d Basin Streams, smrunarizes annual <br />yield for gaged streams. Annual yield is based on historic daily USGS gage data. In addition, basin <br />area was used to estimate yields on a square mile basis. Figure 4, La:atian of Basin Gaging Stations, <br />displays the locations of the gaging stations that were utilized during this study. <br /> <br />M~ Watson Mining Group . P.D. &x 774018 . St.e4rr1l:wt Springs, CoIomdo 80477 · (970) 879.6260 <br /> <br />W,WP/oJJISnoII_ StwJy (lk-fi 1lpr. 11-17-99) <br />11/17/'J9SLW <br />