US GEOLOGICAL SURVEY, WATER RESOURCES DIVISION Oregon District WATER AVAILABILITY REPORT FOR SEPTEMBER 1999 ------------------- Change ------------------- Monthly mean in dis- Accumulated Runoff discharge charge For the Period ------------------- from Oct to Sep Cubic Percent previous ------------------- feet per of month Percent Station second average (percent) of average --------------------------------------------------------------------------- Donner Und Blitzen River 54.3 129 -20 131 near Frenchglen, OR (*)Deep Creek 24.7 165 -6 155 above Adel, OR (*)Chewaucan River 38.8 125 -25 153 near Paisley, OR Williamson River 661 116 +7 138 near Chiloquin, OR Owyhee River 152 109 -23 94 near Rome, OR Imnaha River NOT AVAILABLE at Imnaha, OR Grande Ronde River 700 90 -34 122 at Troy, OR John Day River 191 104 -35 137 at Service Creek, OR (*)Little Deschutes River 170 140 -34 148 nr LaPine, OR Hood River 336 87 -36 126 nr Hood River, OR Willamette River (1969-90) 9,164(o) 90 +14 135 at Salem, OR (1961-90) 2,934(a) 72 -43 133 Wilson River 60 38 -31 150 near Tillamook, OR Umpqua River 1,445 121 -12 147 near Elkton, OR Rogue River 2,013 114 -33 136 near Agness, OR All data should be considered provisional and subject to revision Percent of Average computed using period of record except where noted (*) provided by Oregon Water Resources Department (o) observed flow (a) adjusted for upstream storage 10/05/99