SUMMARY OF COLUMBIA RIVER FLOOD CONTROL DATA   1 APR  1998

                     MCDB   ARDB    LIB   DCDB    HGH    GCL    BRN    DWR    DWR
 PROJECT LIMITS
  Maximum El. MSL   2475.0 1444.0 2459.0 1892.0 3560.0 1290.0 2077.0 1600.0
  Minimum El. MSL   2320.0 1378.0 2287.0 1794.2 3336.0 1208.0 1976.0 1445.0
  Usable stor.KAF  12053.3 7100.0 4979.5 1398.6 2982.0 5185.5  975.4 2015.8
  Usable stor.KSFD  6076.9 3579.6 2510.5  705.0 1503.4 2614.4  491.7 1016.4
 CURRENT, 31 MAR.
  Elevation MSL     2395.9 1386.5 2391.6 1797.8 3507.0 1257.2 2064.0 1544.5
  Draft KAF         7367.5 6385.2 2646.6 1369.3 1118.4 2419.4  176.6  897.7
 TO MEET 15 APR F.C.
  Feet                 0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0
  Kaf                  0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0
  Ksfd                 0.0    0.0    0.0    0.0    0.0    0.0    0.0    0.0
  Cfs over inflow        0      0      0      0      0      0      0      0
    FROM 15 APR
 TO MEET 30 APR F.C.
  Feet                 0.0    0.0    0.0    0.0    0.0    2.1    0.0    0.0
  Kaf                  0.0    0.0    0.0    0.0    0.0  159.0    0.0    0.0
  Ksfd                 0.0    0.0    0.0    0.0    0.0   80.2    0.0    0.0
  Cfs over inflow        0      0      0      0      0   5346      0      0
 FORECASTS, KAF
  Apr-Jul mp           na     na     na     na     na     na    4780   1633
  Apr-Jul  %           na     na     na     na     na     na      82%    60%
  Apr-Jul change       na     na     na     na     na     na    -470   -177
  Apr-Aug mp         10350  21148   5189   1960    na   52500    na     na
  Apr-Aug  %            90%    91%    81%    95%   na      86%   na     na
  Apr-Aug change       361   -121    137     20    na     200    na     na
  May-Sep mp           na     na     na     na    1340    na     na     na
  May-Sep  %           na     na     na     na      70%   na     na     na
  May-Sep change       na     na     na     na     -81    na     na     na
 FLOOD CONTROL                                                              LRC,/a.
  Drafts, KAF
   Apr 15             1800   4428   na     1230    644    537    100     87    101
   Apr 30             1800   4428   na     1230    736    696     50   na      na
  Elevations MSL
   Apr 15              na  1406.4   na   1811.3 3531.2 1283.3 2069.9 1595.4 1594.6
   Apr 30              na  1406.4   na   1811.3 3526.7 1281.2 2073.5   na      na
 FLOOD CONTROL
  Drafts, KAF                                           shifted urc's, /b.
   Apr 15             na     na     na     na     na      623      0     87
  Elevations MSL
   Apr 15             na     na     na     na     na   1282.2 2077.0 1595.4
 SHIFT POTENTIAL,KA   1/      2/     3/     4/    1/ DWR SYS F.C. MINUS LOC F.C. ie
                                                     POTENTIAL STORAGE SHIFT TO GCL.
   Apr 15              -14    523    623   4602   2/ GCL F.C. PLUS 1/.
   Apr 30           NO SHIFT ALLOWED BY 30 APRIL  3/ BRN F.C. PLUS 2/.
                                                  4/ MAXIMUM TOTAL THAT  2/ or  3/
                                                     CAN ADD UP TO.
============================================================================================
 AT THE DALLES                                   Peak to volume unreg,
   Apr-Aug mp        77200   82.8%  storage               453 KCFS.
   Apr-Aug change    -2300         correction    Initial controlled flow-
   May-Aug mp        66150         19555  KAF     (ICF)   287  KCFS
============================================================================================
 /a. LRC is DWORSHAK LOCAL RULE CURVE.
 /b. Under certain conditions, the GCL, BRN and DWR rule curves may be "shifted".
     The rule curves shown are the "maximun" allowable. All or part of the "max"
     volume may be "shifted". DWR has priority over BRN if all volume can't be
     shifted. "shifts" will be determined on a case by case basis, from year to year,
     and month to month.

Questions? Russ Morrow, 503-808-3951 or Bruce Glabau, 503-808-3950