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11 <br />Table 2. Peak Discharges Estimated Osing Regression <br />Equations Developed for Small Rural water- <br />sheds in tha Arkansas River Basin in Colorado. <br />`1`' <br />1. <br />r• <br />• <br /> Peak Discharge (efa) Volume (ac-ft) <br />Return <br />Period Magpie Tipple Newlin Magpie Tipple Newlin <br />Q2 220 15 290 20 2 26 <br />Q10 1090 29 2,315 87 3 174 <br />Q25 1964 37 4,690 150 4 333 <br />Q1~ 3955 50 10,234 285 5 683 <br />Regression Equations <br />A < 3 square miles: <br />E Q10 ~ 500 (AE)0.89 <br />Q25 ~ 840 (AE)0.97 <br />Q50 ~ 1140 (AE)1.01 <br />Q100 ~ 1550 (01.07 <br />Regression Equations <br />3 square miles < AE < 15 square miles: <br />Q10 ~ 830 (AE)0.41 <br />Q25 ~ 1560 (AE)0.44 <br />Q50 ~ 2280 (AE)0.47 <br />Q100 2930 (AE)0.50 <br />Regression Equation for Volume: <br />iF ~ 0.141 (Qp)0.919 <br />• <br />