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<br />e <br /> <br /> <br />e <br /> <br />. <br /> <br />Attachment 1 <br />Technical Evaluations & Backup Information <br /> <br />WCF134I-NO SYSTEMATIC PEAKS WERE BELOW GAGE BASE. <br />WCF195I-NO LOW OUTLIERS WERE DETECTED BELOW CRITERION. <br />WCF163I-NO HIGH OUTLIERS OR HISTORIC PEAKS EXCEEDED HHBASE. <br /> <br />0.0 <br />24.2 <br />929.1 <br /> <br />1 <br /> <br />Station - 09306200 PICEANCE CREEK BL RYAN GULCH, NR RIO BLANCO, CO. <br />2001 DEC 26 12:35:58 <br /> <br />ANNUAL FREQUENCY CURVE PARAMETERS <br /> <br />FLOOD BASE <br /> <br />LOG-PEARSON TYPE III <br /> <br />LOGARITHMIC <br /> <br />EXCEEDANCE <br />DISCHARGE PROBABILITY <br /> <br />SYSTEMATIC RECORD <br />BULL.17B ESTIMATE <br /> <br />0.0 <br />0.0 <br /> <br />1. 0000 <br />1. 0000 <br /> <br />MEAN <br /> <br />STANDARD <br />DEVIATION <br /> <br />SKEW <br /> <br />2.1761 <br />2.1761 <br /> <br />0.3013 <br />0.3013 <br /> <br />0.082 <br />-0.044 <br /> <br />ANNUAL FREQUENCY CURVE -- DISCHARGES AT SELECTED EXCEEDANCE PROBABILITIES <br /> <br />ANNUAL <br />LIMITS <br />EXCEEDANCE <br />ESTIMATES <br />PROBABILITY <br /> <br />BULL.17B <br /> <br />ESTIMATE <br /> <br />0.9950 <br />0.9900 <br />0.9500 <br />0.9000 <br />0.8000 <br />0.5000 <br />0.2000 <br />0.1000 <br />0.0400 <br />0.0200 <br />0.0100 <br />0.0050 <br />0.0020 <br />0.6667 <br />0.4292 <br /> <br />24.4 <br />29.2 <br />47_5 <br />61. 5 <br />83.8 <br />150.8 <br />269.4 <br />363.8 <br />500.1 <br />613 .5 <br />736.8 <br />870.6 <br />1065.0 <br />111. 8 <br />170.6 <br /> <br />1 <br /> <br />'EXPECTED <br /> <br />95-PCT CONFIDENCE <br /> <br />FOR BULL. 17B <br /> <br />RECORD <br /> <br />SYSTEMATIC PROBABILITY' <br /> <br />LOWER UPPER <br /> <br />26.5 <br />31.1 <br />48.7 <br />62.0 <br />83.4 <br />148.6 <br />268.2 <br />367.2 <br />515.4 <br />643.0 <br />785.9 <br />945.4 <br />1185.0 <br />1.50-year <br />2.33-year <br /> <br />ESTIMATE <br /> <br />21.2 <br />26.2 <br />45.2 <br />59.6 <br />82.5 <br />150.8 <br />273.5 <br />374.9 <br />528.0 <br />661. 9 <br />814.7 <br />989.4 <br />1260.0 <br />fl ood ) <br />fl ood ) <br /> <br />14.8 <br />18.4 <br />33.2 <br />45.2 <br />64.9 <br />123.9 <br />219.0 <br />288.2 <br />382.4 <br />457.1 <br />535,6 <br />618.3 <br />734.7 <br /> <br />34.6 <br />40.4 <br />61. 7 <br />77.6 <br />103.1 <br />183.6 <br />347.9 <br />494.2 <br />722.8 <br />925.5 <br />1157.0 <br />1418.0 <br />1816.0 <br /> <br />Station - 09306200 PICEANCE CREEK BL RYAN GULCH, NR RIO BLANCO, CO. <br />2001 DEC 26 12:35;58 <br /> <br />URS <br /> <br />T:\PROJECTS\6644888_CWCB_FLOOD_DOC_RPTS\SUB_OO\6.0_PROJ_DEUV\REPOAl\ATT ACHMENT 1.DOC\7-FEB-02\\ A 1- 21 <br />