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Table 7-39 <br />Calculated Mean Annual Discharge and Peak Discharge for <br />Select Return Periods for Tuttle and Calamity Draws <br />Discharge Characteristics SW-N31 Tuttle2 SW-N1033 Calamity4 <br />Mean Annual Discharge (cfs) .809 .862 .380 .417 <br />2-yr Peak Discharge (cfs) 44.7 50.8 25.4 18.7 <br />5-yr Peak Discharge (cfs) 270 337 172 205 <br />10-yr Peak Discharge (cfs) 347 432 222 263 <br />25-yr Peak Discharge (cfs) 453 565 290 344 <br />50-yr Peak Discharge (cfs) 541 674 346 411 <br />100-yr Peak Discharge (cfs) 632 787 405 481 <br />500-yr Peak Discharge (cfs) 878 1090 504 668 <br />iDischarge determined for the drainage area above Site SW-N3 (Tuttle Draw) <br />2Discharge determined for the drainage area above the confluence of Tuttle Draw and the <br />San Miguel River <br />3Discharge determined for the drainage area above Site SW-N103 (Calamity Draw) <br />4Discharge determined for the drainage area above the confluence of Calamity Draw and the <br />San Miguel River <br /> <br />7-113 Revised 04/11/88 <br />2.04.7-35