US GEOLOGICAL SURVEY, OREGON WATER SCIENCE CENTER
WATER AVAILABILITY REPORT FOR APRIL 2011
------------------- 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 373 161 67 164
nr Frenchglen
(*)Deep Creek Lake 669 179 143 140
above Adel County
(*)Chewaucan River Lake 528 145 156 114
near Paisley County
Williamson River Klamath 2,070 105 31 87
near Chiloquin
Owyhee River Owyhee 7,166 254 97 169
near Rome
Malheur River Malheur 1,707 307 61 221
nr Vale (19 yrs POR)
Imnaha River Grande Ronde 749 80 109 81
at Imnaha Powder/Burnt
Grande Ronde R Grande Ronde 8,893 145 98 114
at Troy Powder/Burnt
Umatilla River Umatilla 807 154 99 121
nr Gibbon Lower John Day
John Day River Upper John Day 9,414 177 114 145
at Service Crk
(*)Little Deschutes Upper 292 100 86 87
River nr LaPine Deschutes
Hood River Lower Deschutes 1,829 144 11 121
nr Hood River Mt.Hood
Willamette River Willamette 40,420 170 3 111
at Salem
Wilson River North 2,264 194 -30 131
near Tillamook Coast
Umpqua River Rogue/Umpqua 15,650 163 -24 117
near Elkton
Rogue River Rogue/Umpqua 11,480 163 -28 112
near Agness
Chetco River South Coast 3,880 159 -50 116
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
5/5/2011