MONTHLY POWER PRODUCTION SUMMARY FOR: APR 2004 TOTAL GENERATION TOTAL STATION NET GENERATION POWER AUX NET GENERATION PROJECT IN MWH USE-MWH TO BPA-MWH USE---MWH REPORTED TO FERC DWORSHAK DAM 129061 1603 127458 1603 127458 ALBENI FALLS DAM ON 16439 162 16277 162 16277 BIG CLIFF DAM 7372 31 7341 31 7341 BONNEVILLE DAM & LAK 391676 2759 388917 2069 389607 COUGAR DAM 0 0 0 0 0 DETROIT DAM 28950 181 28769 181 28769 DEXTER DAM & LAKE ON 9279 29 9250 29 9250 GREEN PETER DAM 23971 76 23895 76 23895 HILLS CREEK DAM & LA 18957 74 18883 74 18883 JOHN DAY DAM & LAKE 697541 1542 695999 1079 696462 LOOKOUT POINT DAM & 26666 118 26548 118 26548 MCNARY DAM & LAKE WA 438447 2876 435571 760 437687 THE DALLES DAM & LAK 483467 1138 482329 842 482625 CHIEF JOSEPH DAM & E 737164 969 736195 969 736195 ICE HARBOR DAM 137523 2186 135337 437 137086 LITTLE GOOSE DAM & L 200697 612 200085 367 200330 LOWER MONUMENTAL DAM 247014 419 246595 251 246763 LIBBY DAM & LAKE KOO 64237 615 63622 615 63622 LOST CREEK DAM 27098 428 26670 188 26910 LOWER GRANITE DAM & 193113 1438 191675 575 192538 FOSTER DAM 11417 87 11330 87 11330 GRAND COULEE DAM 1382147 10203 1371944 10203 1371944 HUNGRY HORSE DAM 15281 0 15281 0 15281 TOTAL 5287517 27546 5259971 20718 5266799