MONTHLY POWER PRODUCTION SUMMARY FOR: MAY 1990 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 224363 1048 223315 1048 223315 ALBENI FALLS DAM ON 16855 155 16700 155 16700 BIG CLIFF DAM 8957 45 8912 45 8912 BONNEVILLE DAM & LAK 429122 1732 427390 1299 427823 COUGAR DAM 14305 63 14242 63 14242 DETROIT DAM 40000 210 39790 210 39790 DEXTER DAM & LAKE ON 6089 22 6067 22 6067 GREEN PETER DAM 19229 92 19137 92 19137 HILLS CREEK DAM & LA 14995 48 14947 48 14947 JOHN DAY DAM & LAKE 1117680 1436 1116244 1005 1116675 LOOKOUT POINT DAM & 31999 113 31886 113 31886 MCNARY DAM & LAKE WA 771237 3029 768208 780 770457 THE DALLES DAM & LAK 868145 1542 866603 1141 867004 CHIEF JOSEPH DAM & E 1183440 917 1182523 917 1182523 ICE HARBOR DAM 287266 1951 285315 390 286876 LITTLE GOOSE DAM & L 360376 573 359803 344 360032 LOWER MONUMENTAL DAM 249963 481 249482 289 249674 LIBBY DAM & LAKE KOO 52614 428 52186 428 52186 LOST CREEK DAM 30706 200 30506 88 30618 LOWER GRANITE DAM & 357294 1342 355952 537 356757 FOSTER DAM 9668 104 9564 104 9564 GRAND COULEE DAM 2063791 7597 2056194 7597 2056194 HUNGRY HORSE DAM 46054 --- --- --- --- TOTAL 8204148 23128 8134966 16715 8141379