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nn �- CONSULT'-"; El —NEERS & GEOLOGISTS <br /> � . M. NXFjfl � <br /> C• SOIL, FOUN�ATION , GEOLOGICAL INVESTIGATIONS <br /> 4765 INDEPENDENCE ST. WHEAT RIDGE (D[NVER), COLORADO 80033 TEL 13031 424•5578 ' <br /> HYDROGRAPH <br /> Drainage A Area 72 acres <br /> Storm 100-year Thunderstorm Period 1 hour <br /> Rain 2.3 inches Runoff 1.21 inches <br /> Curve Number 88 Time of Concentration .25 hours <br /> Total Hydrograph <br /> - - - - - - Incremental Hydrograph <br /> 4.0 <br /> 0 .214 <br /> .78 Excess Rainfall (inches) <br /> 3.5 <br /> 3.0 <br /> 2.5 <br /> Uf <br /> i- <br /> V <br /> O <br /> O <br /> 2.0 <br /> W <br /> � Peak Discharge 175 cfs <br /> U <br /> N <br /> 1 _0 / Total Runoff <br /> .5 / <br /> 100, <br /> 0 <br /> ..25 :5 ..75 1 .0 1 .25 1 .5 1 .75 2.0 <br /> TIME - HOURS <br /> FIGURE II-2 <br />