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6/21/96 ... 9:38 AM Camp Dresser £~ McKee Inc. <br />FIGURE 3.15 (continued) <br />- -Comparison of USFWS Recommenced Mein Monthly Flows to Adjusted-Historical (Existing) <br />and Projected Future Mean Monthly Flows on the Colorado River at the Top of the 15-Mile Reach <br />Over the 1975-1993 Simulation Period (see last page for explanation of curves) <br />100% <br />80% <br /> <br />X60% <br />N <br />0 <br />LL <br />d <br />E <br />.~ 40% <br />0 <br />0 <br />20% <br />0% <br />Interpretation of Flow Frequency Curves <br />(February Curve Used as an Example) <br /> -+-FWS Recommendation. <br /> FWS has recommended "-Existing Flows <br /> that flows equal or exceed -----~ Future Flows <br /> 1240 cfs 100% of the time <br /> and 1630 cfs 25%, 50%, <br /> and 80% of the time <br /> <br /> ', Comparison of Curves <br /> FWS recommendations are being <br /> met when flow frequency curves <br /> are to the right of (greater than) the <br />', ' recommendation curve. FWS <br />Both historic & future flows ' recommendations are not being met <br /> will be less than the FWS when flow frequency curves are <br /> 100%, 80%, and 50% to the left of (less than) the <br /> recommendations, ', recommendation curve. <br /> and they will exceed the FWS <br />25% reoommendations <br /> <br />1,000 1,200 1,400 1,600 1,800 2,000 2,200 2,400 2,600 2,800 <br />Q, Colorado River Flow at Top of 15-Mile Reach (cfs) <br />FW5-REC.XLS ... Curves <br />