US GEOLOGICAL SURVEY, Oregon Water Science Center WATER AVAILABILITY REPORT FOR MAY 2007 ------------------- Change --------------------- Monthly mean in dis- Accumulated Runoff discharge charge For the Period ------------------- from Oct to May NRCS Cubic Percent previous --------------------- SWSI feet per of month Percent Station Basin second average (percent) of average ------------------------------------------------------------------------------------------ Donner Und Blitzen Harney 295 73 +60 72 nr Frenchglen (*)Deep Creek Lake 180 38 -11 49 above Adel County (*)Chewaucan River Lake 306 58 +18 67 near Paisley County Williamson River Klamath 977 57 -31 74 near Chiloquin Owyhee River Owyhee 309 14 -39 29 near Rome Malheur River Malheur 71 30 +3 35 nr Vale (19yrs POR) Imnaha River Grande Ronde 1003 64 +46 78 at Imnaha Powder/Burnt Grande Ronde R Grande Ronde 4,025 56 +8 74 at Troy Powder/Burnt Umatilla River Umatilla 179 40 -50 91 nr Gibbon Lower John Day John Day River Upper John Day 2,400 45 -37 70 at Service Crk (*)Little Deschutes Upper 169 47 -27 66 River nr LaPine Deschutes Hood River Lower Deschutes 882 77 -21 114 nr Hood River Mt.Hood Willamette River Willamette 15,020 78 -19 101 at Salem Wilson River North 399 66 -56 125 near Tillamook Coast Umpqua River Rogue/Umpqua 4,139 64 -45 96 near Elkton Rogue River Rogue/Umpqua 4,235 78 -17 94 near Agness Chetco River South Coast 1,151 95 -33 103 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 06/04/2007