MONTHLY POWER PRODUCTION SUMMARY FOR: JUL 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 195317 462 194855 462 194855 ALBENI FALLS DAM ON 30760 194 30566 194 30566 BIG CLIFF DAM 7440 33 7407 33 7407 BONNEVILLE DAM & LAK 473008 2012 470996 1509 471499 COUGAR DAM 12267 48 12219 48 12219 DETROIT DAM 31300 185 31115 185 31115 DEXTER DAM & LAKE ON 8275 24 8251 24 8251 GREEN PETER DAM 0 0 0 0 0 HILLS CREEK DAM & LA 13106 45 13061 45 13061 JOHN DAY DAM & LAKE 998256 1613 996643 1129 997127 LOOKOUT POINT DAM & 34876 119 34757 119 34757 MCNARY DAM & LAKE WA 543985 2987 540998 850 543135 THE DALLES DAM & LAK 493683 1384 492299 1024 492659 CHIEF JOSEPH DAM & E 1373743 905 1372838 905 1372838 ICE HARBOR DAM 62624 2194 60430 439 62185 LITTLE GOOSE DAM & L 284810 729 284081 437 284373 LOWER MONUMENTAL DAM 300623 458 300165 275 300348 LIBBY DAM & LAKE KOO 197369 541 196828 541 196828 LOST CREEK DAM 18798 245 18553 108 18690 LOWER GRANITE DAM & 295620 1382 294238 553 295067 FOSTER DAM 3934 72 3862 72 3862 GRAND COULEE DAM 2740473 6201 2734272 6201 2734272 HUNGRY HORSE DAM 54472 0 54472 0 54472 TOTAL 8174739 21833 8152906 15153 8159586