MONTHLY POWER PRODUCTION SUMMARY FOR: JUN 2006 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 188128 199 187929 199 187929 ALBENI FALLS DAM ON 19725 187 19538 187 19538 BIG CLIFF DAM 2811 31 2780 31 2780 BONNEVILLE DAM & LAK 518736 2334 516402 1750 516986 COUGAR DAM 10258 47 10211 47 10211 DETROIT DAM 27700 160 27540 160 27540 DEXTER DAM & LAKE ON 6337 17 6320 17 6320 GREEN PETER DAM 6782 52 6730 52 6730 HILLS CREEK DAM & LA 14166 57 14109 57 14109 JOHN DAY DAM & LAKE 1016942 1596 1015346 1117 1015825 LOOKOUT POINT DAM & 28691 110 28581 110 28581 MCNARY DAM & LAKE WA 543984 1968 542016 790 543194 THE DALLES DAM & LAK 707161 1246 705915 922 706239 CHIEF JOSEPH DAM & E 1464644 914 1463730 914 1463730 ICE HARBOR DAM 203422 2160 201261 432 202989 LITTLE GOOSE DAM & L 301275 606 300668 364 300911 LOWER MONUMENTAL DAM 334083 523 333560 314 333769 LIBBY DAM & LAKE KOO 428140 611 427529 611 427529 LOST CREEK DAM 37525 217 37308 95 37430 LOWER GRANITE DAM & 314136 1359 312777 543 313593 FOSTER DAM 6272 62 6210 62 6210 GRAND COULEE DAM 2860088 1486 2858602 1486 2858602 HUNGRY HORSE DAM 155784 0 155784 0 155784 TOTAL 9196790 15943 9180848 10262 9186529