US GEOLOGICAL SURVEY, OREGON WATER SCIENCE CENTER WATER AVAILABILITY REPORT FOR APRIL 2010 ------------------- Change --------------------- Monthly mean in dis- Accumulated Runoff discharge charge For the Period ------------------- from Oct. to Apr. NRCS Cubic Percent previous --------------------- SWSI feet per of month Percent Station Basin second average (percent) of average ------------------------------------------------------------------------------------------ Donner Und Blitzen Harney 252 109 58 88 nr Frenchglen (*)Deep Creek Lake 209 56 217 38 above Adel County (*)Chewaucan River Lake 164 45 156 43 near Paisley County Williamson River Klamath 872 44 21 53 near Chiloquin Owyhee River Owyhee 2,045 72 110 45 near Rome Malheur River Malheur 228 41 -26 49 nr Vale (19 yrs POR) Imnaha River Grande Ronde 874 94 251 73 at Imnaha Powder/Burnt Grande Ronde R Grande Ronde 3,540 58 110 50 at Troy Powder/Burnt Umatilla River Umatilla 405 77 133 61 nr Gibbon Lower John Day John Day River Upper John Day 3,241 61 98 48 at Service Crk (*)Little Deschutes Upper 118 40 31 49 River nr LaPine Deschutes Hood River Lower Deschutes 1,060 83 13 73 nr Hood River Mt.Hood Willamette River Willamette 31,330 132 57 74 at Salem Wilson River North 1,810 155 23 95 near Tillamook Coast Umpqua River Rogue/Umpqua 12,180 126 57 63 near Elkton Rogue River Rogue/Umpqua 7,260 103 49 60 near Agness Chetco River South Coast 4,250 174 15 93 near Brookings All data should be considered provisional and subject to revision Percent of average computed using 30-year base period, wtr yrs 1971-2000, except where noted (*) provided by Oregon Water Resources Department 05/17/2010