US GEOLOGICAL SURVEY, Oregon Water Science Center WATER AVAILABILITY REPORT FOR APRIL 2007 ------------------- 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 184 79 +64 72 nr Frenchglen (*)Deep Creek Lake 202 54 +6 54 above Adel County (*)Chewaucan River Lake 259 71 +16 72 near Paisley County Williamson River Klamath 1,414 72 -19 77 near Chiloquin Owyhee River Owyhee 508 18 -37 32 near Rome Malheur River Malheur 69 12 -23 36 nr Vale (19yrs POR) Imnaha River Grande Ronde 688 74 +43 86 at Imnaha Powder/Burnt Grande Ronde R Grande Ronde 3,734 61 -22 80 at Troy Powder/Burnt Umatilla River Umatilla 357 68 -26 102 nr Gibbon Lower John Day John Day River Upper John Day 3,808 72 -12 78 at Service Crk (*)Little Deschutes Upper 230 78 +15 72 River nr LaPine Deschutes Hood River Lower Deschutes 1,118 88 -34 119 nr Hood River Mt.Hood Willamette River Willamette 18,550 78 -39 103 at Salem Wilson River North 900 77 -62 127 near Tillamook Coast Umpqua River Rogue/Umpqua 7,476 78 -45 99 near Elkton Rogue River Rogue/Umpqua 5,121 73 -49 95 near Agness Chetco River South Coast 1,716 70 -50 103 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 05/07/07