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Show ( A'Oorayo AOorayo ) ( numlcr MOOV ) ( of 01 ) ( Jtps ( in ill ) y Var ( 09 69 ) the ( flow flolo ) ( It Is ) 10tv t1lat ; Ilia jiiQaii ( | f ( v- v ) ( chdrgo Margo ) of jt070 ( secouil'fQQt secouilfQQt second-fdat secondfdat ) 30 , Februll ry 27 ( August- August ) _ _ ( Afarch- Afarch ) 25 selAelliber '24 _ _ _ _ _ _ _ April --------------------- 9 October ------------ 24 May I ( November- November ) - 30 ----------------- M ---- _ _ ----------------------- 3 December ---------- ------ 31 Al Floods of 10,000 ( second-feet secondfeet ) and more have ( oc- oc ) curred in all months except November , December , ( January Xanuary ) , and February , and ( low-water lowwater low--water lowwater ) periods . of less than 1,000 ( second-feet secondfeet ) occur in all months ( ex- ex ) cept April , May , and June ; 62.9 per cent of the total ( run-off runoff ) occurs in the ( four-month fourmonth four-inonth fourinonth ) period , ( April A-pril April ) to July . Richardson ( ( Yol Vol ) . 20 , page 3708 ) following ( obser obser- obser ) ¬ vations ( extending extendhig ) over a year says , ( "during during ) that period , I observed that the stream ( Green River ) was one of erratic and irregular regimen . " Rapidity of change in flow The Colorado , Green , and San Juan Rivers , in common with all rivers ( draining- draining draining ) an ( arid and ) or ( semi- semi ) ( arid and ) region , are subject to very sudden floods . The hydrographs of daily discharge ( Exhibit 79 ) show vividly the rapidity with which the flow ( conditions coiiditions ) change . A few of the more outstanding changes are noted on ( various vaTious ) exhibits as follows : Green River at Green River , Utah ( Exhibits 97 and 94 ) From 7,830 ( second-feet secondfeet ) May 25 , 1896 , to 43,500 ( 011 on ) June 3 . |