MONTHLY POWER PRODUCTION SUMMARY FOR: JUN 1999 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 41464 1649 39815 1649 39815 ALBENI FALLS DAM ON 12286 147 12139 147 12139 BIG CLIFF DAM 13328 32 13296 32 13296 BONNEVILLE DAM & LAK 547132 2287 544845 1715 545417 COUGAR DAM 20113 66 20047 66 20047 DETROIT DAM 59900 181 59719 181 59719 DEXTER DAM & LAKE ON 10418 27 10391 27 10391 GREEN PETER DAM 9376 54 9322 54 9322 HILLS CREEK DAM & LA 23303 39 23264 39 23264 JOHN DAY DAM & LAKE 1329320 1558 1327762 1091 1328229 LOOKOUT POINT DAM & 49285 114 49171 114 49171 MCNARY DAM & LAKE WA 582660 2892 579768 790 581870 THE DALLES DAM & LAK 710267 1303 708964 964 709303 CHIEF JOSEPH DAM & E 1306928 897 1306031 897 1306031 ICE HARBOR DAM 298323 2066 296257 413 297910 LITTLE GOOSE DAM & L 515099 702 514397 421 514678 LOWER MONUMENTAL DAM 551513 509 551004 305 551208 LIBBY DAM & LAKE KOO 206292 568 205724 568 205724 LOST CREEK DAM 36258 264 35994 116 36142 LOWER GRANITE DAM & 452335 1321 451014 528 451807 FOSTER DAM 10724 86 10638 86 10638 GRAND COULEE DAM 2349218 6073 2343145 6073 2343145 HUNGRY HORSE DAM 34494 0 34494 0 34494 TOTAL 9170036 22835 9147201 16277 9153758